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authorThomas Gleixner <tglx@linutronix.de>2005-11-07 06:15:49 -0500
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-11-07 09:10:37 -0500
commit61b03bd7c3b55498c6180d43bf71b7bf49114b64 (patch)
tree5a7d7df4653d2032bca0d2b13a26828c8925dd60
parente5580fbe8a950131b9ccccce0f962811dfb9ef43 (diff)
[MTD] NAND: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat
-rw-r--r--drivers/mtd/nand/Kconfig10
-rw-r--r--drivers/mtd/nand/au1550nd.c58
-rw-r--r--drivers/mtd/nand/autcpu12.c22
-rw-r--r--drivers/mtd/nand/diskonchip.c100
-rw-r--r--drivers/mtd/nand/edb7312.c48
-rw-r--r--drivers/mtd/nand/h1910.c48
-rw-r--r--drivers/mtd/nand/nand_base.c478
-rw-r--r--drivers/mtd/nand/nand_bbt.c248
-rw-r--r--drivers/mtd/nand/nand_ecc.c44
-rw-r--r--drivers/mtd/nand/nand_ids.c30
-rw-r--r--drivers/mtd/nand/nandsim.c162
-rw-r--r--drivers/mtd/nand/ppchameleonevb.c6
-rw-r--r--drivers/mtd/nand/rtc_from4.c58
-rw-r--r--drivers/mtd/nand/s3c2410.c30
-rw-r--r--drivers/mtd/nand/sharpsl.c22
-rw-r--r--drivers/mtd/nand/spia.c6
-rw-r--r--drivers/mtd/nand/toto.c20
17 files changed, 695 insertions, 695 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index f6f5ac808957..1fc4c134d939 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -1,5 +1,5 @@
1# drivers/mtd/nand/Kconfig 1# drivers/mtd/nand/Kconfig
2# $Id: Kconfig,v 1.34 2005/09/23 01:44:55 ppopov Exp $ 2# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
3 3
4menu "NAND Flash Device Drivers" 4menu "NAND Flash Device Drivers"
5 depends on MTD!=n 5 depends on MTD!=n
@@ -27,14 +27,14 @@ config MTD_NAND_AUTCPU12
27 tristate "SmartMediaCard on autronix autcpu12 board" 27 tristate "SmartMediaCard on autronix autcpu12 board"
28 depends on MTD_NAND && ARCH_AUTCPU12 28 depends on MTD_NAND && ARCH_AUTCPU12
29 help 29 help
30 This enables the driver for the autronix autcpu12 board to 30 This enables the driver for the autronix autcpu12 board to
31 access the SmartMediaCard. 31 access the SmartMediaCard.
32 32
33config MTD_NAND_EDB7312 33config MTD_NAND_EDB7312
34 tristate "Support for Cirrus Logic EBD7312 evaluation board" 34 tristate "Support for Cirrus Logic EBD7312 evaluation board"
35 depends on MTD_NAND && ARCH_EDB7312 35 depends on MTD_NAND && ARCH_EDB7312
36 help 36 help
37 This enables the driver for the Cirrus Logic EBD7312 evaluation 37 This enables the driver for the Cirrus Logic EBD7312 evaluation
38 board to access the onboard NAND Flash. 38 board to access the onboard NAND Flash.
39 39
40config MTD_NAND_H1900 40config MTD_NAND_H1900
@@ -71,7 +71,7 @@ config MTD_NAND_RTC_FROM4
71 select REED_SOLOMON 71 select REED_SOLOMON
72 select REED_SOLOMON_DEC8 72 select REED_SOLOMON_DEC8
73 help 73 help
74 This enables the driver for the Renesas Technology AG-AND 74 This enables the driver for the Renesas Technology AG-AND
75 flash interface board (FROM_BOARD4) 75 flash interface board (FROM_BOARD4)
76 76
77config MTD_NAND_PPCHAMELEONEVB 77config MTD_NAND_PPCHAMELEONEVB
@@ -88,7 +88,7 @@ config MTD_NAND_S3C2410
88 SoCs 88 SoCs
89 89
90 No board specfic support is done by this driver, each board 90 No board specfic support is done by this driver, each board
91 must advertise a platform_device for the driver to attach. 91 must advertise a platform_device for the driver to attach.
92 92
93config MTD_NAND_S3C2410_DEBUG 93config MTD_NAND_S3C2410_DEBUG
94 bool "S3C2410 NAND driver debug" 94 bool "S3C2410 NAND driver debug"
diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index 953daf379b9b..3cafcdf28aed 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Copyright (C) 2004 Embedded Edge, LLC 4 * Copyright (C) 2004 Embedded Edge, LLC
5 * 5 *
6 * $Id: au1550nd.c,v 1.12 2005/09/23 01:44:55 ppopov Exp $ 6 * $Id: au1550nd.c,v 1.13 2005/11/07 11:14:30 gleixner Exp $
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as 9 * it under the terms of the GNU General Public License version 2 as
@@ -25,10 +25,10 @@
25#else 25#else
26#include <asm/au1000.h> 26#include <asm/au1000.h>
27#ifdef CONFIG_MIPS_PB1550 27#ifdef CONFIG_MIPS_PB1550
28#include <asm/pb1550.h> 28#include <asm/pb1550.h>
29#endif 29#endif
30#ifdef CONFIG_MIPS_DB1550 30#ifdef CONFIG_MIPS_DB1550
31#include <asm/db1x00.h> 31#include <asm/db1x00.h>
32#endif 32#endif
33#endif 33#endif
34 34
@@ -43,12 +43,12 @@ static int nand_width = 1; /* default x8*/
43 * Define partitions for flash device 43 * Define partitions for flash device
44 */ 44 */
45const static struct mtd_partition partition_info[] = { 45const static struct mtd_partition partition_info[] = {
46 { 46 {
47 .name = "NAND FS 0", 47 .name = "NAND FS 0",
48 .offset = 0, 48 .offset = 0,
49 .size = 8*1024*1024 49 .size = 8*1024*1024
50 }, 50 },
51 { 51 {
52 .name = "NAND FS 1", 52 .name = "NAND FS 1",
53 .offset = MTDPART_OFS_APPEND, 53 .offset = MTDPART_OFS_APPEND,
54 .size = MTDPART_SIZ_FULL 54 .size = MTDPART_SIZ_FULL
@@ -89,7 +89,7 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte)
89 * au_read_byte16 - read one byte endianess aware from the chip 89 * au_read_byte16 - read one byte endianess aware from the chip
90 * @mtd: MTD device structure 90 * @mtd: MTD device structure
91 * 91 *
92 * read function for 16bit buswith with 92 * read function for 16bit buswith with
93 * endianess conversion 93 * endianess conversion
94 */ 94 */
95static u_char au_read_byte16(struct mtd_info *mtd) 95static u_char au_read_byte16(struct mtd_info *mtd)
@@ -119,7 +119,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte)
119 * au_read_word - read one word from the chip 119 * au_read_word - read one word from the chip
120 * @mtd: MTD device structure 120 * @mtd: MTD device structure
121 * 121 *
122 * read function for 16bit buswith without 122 * read function for 16bit buswith without
123 * endianess conversion 123 * endianess conversion
124 */ 124 */
125static u16 au_read_word(struct mtd_info *mtd) 125static u16 au_read_word(struct mtd_info *mtd)
@@ -135,7 +135,7 @@ static u16 au_read_word(struct mtd_info *mtd)
135 * @mtd: MTD device structure 135 * @mtd: MTD device structure
136 * @word: data word to write 136 * @word: data word to write
137 * 137 *
138 * write function for 16bit buswith without 138 * write function for 16bit buswith without
139 * endianess conversion 139 * endianess conversion
140 */ 140 */
141static void au_write_word(struct mtd_info *mtd, u16 word) 141static void au_write_word(struct mtd_info *mtd, u16 word)
@@ -165,7 +165,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
165} 165}
166 166
167/** 167/**
168 * au_read_buf - read chip data into buffer 168 * au_read_buf - read chip data into buffer
169 * @mtd: MTD device structure 169 * @mtd: MTD device structure
170 * @buf: buffer to store date 170 * @buf: buffer to store date
171 * @len: number of bytes to read 171 * @len: number of bytes to read
@@ -179,12 +179,12 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
179 179
180 for (i=0; i<len; i++) { 180 for (i=0; i<len; i++) {
181 buf[i] = readb(this->IO_ADDR_R); 181 buf[i] = readb(this->IO_ADDR_R);
182 au_sync(); 182 au_sync();
183 } 183 }
184} 184}
185 185
186/** 186/**
187 * au_verify_buf - Verify chip data against buffer 187 * au_verify_buf - Verify chip data against buffer
188 * @mtd: MTD device structure 188 * @mtd: MTD device structure
189 * @buf: buffer containing the data to compare 189 * @buf: buffer containing the data to compare
190 * @len: number of bytes to compare 190 * @len: number of bytes to compare
@@ -219,16 +219,16 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
219 struct nand_chip *this = mtd->priv; 219 struct nand_chip *this = mtd->priv;
220 u16 *p = (u16 *) buf; 220 u16 *p = (u16 *) buf;
221 len >>= 1; 221 len >>= 1;
222 222
223 for (i=0; i<len; i++) { 223 for (i=0; i<len; i++) {
224 writew(p[i], this->IO_ADDR_W); 224 writew(p[i], this->IO_ADDR_W);
225 au_sync(); 225 au_sync();
226 } 226 }
227 227
228} 228}
229 229
230/** 230/**
231 * au_read_buf16 - read chip data into buffer 231 * au_read_buf16 - read chip data into buffer
232 * @mtd: MTD device structure 232 * @mtd: MTD device structure
233 * @buf: buffer to store date 233 * @buf: buffer to store date
234 * @len: number of bytes to read 234 * @len: number of bytes to read
@@ -249,7 +249,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
249} 249}
250 250
251/** 251/**
252 * au_verify_buf16 - Verify chip data against buffer 252 * au_verify_buf16 - Verify chip data against buffer
253 * @mtd: MTD device structure 253 * @mtd: MTD device structure
254 * @buf: buffer containing the data to compare 254 * @buf: buffer containing the data to compare
255 * @len: number of bytes to compare 255 * @len: number of bytes to compare
@@ -282,26 +282,26 @@ static void au1550_hwcontrol(struct mtd_info *mtd, int cmd)
282 case NAND_CTL_CLRCLE: this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; break; 282 case NAND_CTL_CLRCLE: this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; break;
283 283
284 case NAND_CTL_SETALE: this->IO_ADDR_W = p_nand + MEM_STNAND_ADDR; break; 284 case NAND_CTL_SETALE: this->IO_ADDR_W = p_nand + MEM_STNAND_ADDR; break;
285 case NAND_CTL_CLRALE: 285 case NAND_CTL_CLRALE:
286 this->IO_ADDR_W = p_nand + MEM_STNAND_DATA; 286 this->IO_ADDR_W = p_nand + MEM_STNAND_DATA;
287 /* FIXME: Nobody knows why this is neccecary, 287 /* FIXME: Nobody knows why this is neccecary,
288 * but it works only that way */ 288 * but it works only that way */
289 udelay(1); 289 udelay(1);
290 break; 290 break;
291 291
292 case NAND_CTL_SETNCE: 292 case NAND_CTL_SETNCE:
293 /* assert (force assert) chip enable */ 293 /* assert (force assert) chip enable */
294 au_writel((1<<(4+NAND_CS)) , MEM_STNDCTL); break; 294 au_writel((1<<(4+NAND_CS)) , MEM_STNDCTL); break;
295 break; 295 break;
296 296
297 case NAND_CTL_CLRNCE: 297 case NAND_CTL_CLRNCE:
298 /* deassert chip enable */ 298 /* deassert chip enable */
299 au_writel(0, MEM_STNDCTL); break; 299 au_writel(0, MEM_STNDCTL); break;
300 break; 300 break;
301 } 301 }
302 302
303 this->IO_ADDR_R = this->IO_ADDR_W; 303 this->IO_ADDR_R = this->IO_ADDR_W;
304 304
305 /* Drain the writebuffer */ 305 /* Drain the writebuffer */
306 au_sync(); 306 au_sync();
307} 307}
@@ -325,7 +325,7 @@ int __init au1xxx_nand_init (void)
325 u32 nand_phys; 325 u32 nand_phys;
326 326
327 /* Allocate memory for MTD device structure and private data */ 327 /* Allocate memory for MTD device structure and private data */
328 au1550_mtd = kmalloc (sizeof(struct mtd_info) + 328 au1550_mtd = kmalloc (sizeof(struct mtd_info) +
329 sizeof (struct nand_chip), GFP_KERNEL); 329 sizeof (struct nand_chip), GFP_KERNEL);
330 if (!au1550_mtd) { 330 if (!au1550_mtd) {
331 printk ("Unable to allocate NAND MTD dev structure.\n"); 331 printk ("Unable to allocate NAND MTD dev structure.\n");
@@ -345,7 +345,7 @@ int __init au1xxx_nand_init (void)
345 345
346 /* disable interrupts */ 346 /* disable interrupts */
347 au_writel(au_readl(MEM_STNDCTL) & ~(1<<8), MEM_STNDCTL); 347 au_writel(au_readl(MEM_STNDCTL) & ~(1<<8), MEM_STNDCTL);
348 348
349 /* disable NAND boot */ 349 /* disable NAND boot */
350 au_writel(au_readl(MEM_STNDCTL) & ~(1<<0), MEM_STNDCTL); 350 au_writel(au_readl(MEM_STNDCTL) & ~(1<<0), MEM_STNDCTL);
351 351
@@ -353,7 +353,7 @@ int __init au1xxx_nand_init (void)
353 /* set gpio206 high */ 353 /* set gpio206 high */
354 au_writel(au_readl(GPIO2_DIR) & ~(1<<6), GPIO2_DIR); 354 au_writel(au_readl(GPIO2_DIR) & ~(1<<6), GPIO2_DIR);
355 355
356 boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) | 356 boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) |
357 ((bcsr->status >> 6) & 0x1); 357 ((bcsr->status >> 6) & 0x1);
358 switch (boot_swapboot) { 358 switch (boot_swapboot) {
359 case 0: 359 case 0:
@@ -402,7 +402,7 @@ int __init au1xxx_nand_init (void)
402 au_writel(NAND_STADDR, MEM_STADDR3); 402 au_writel(NAND_STADDR, MEM_STADDR3);
403 } 403 }
404#endif 404#endif
405 405
406 /* Locate NAND chip-select in order to determine NAND phys address */ 406 /* Locate NAND chip-select in order to determine NAND phys address */
407 mem_staddr = 0x00000000; 407 mem_staddr = 0x00000000;
408 if (((au_readl(MEM_STCFG0) & 0x7) == 0x5) && (NAND_CS == 0)) 408 if (((au_readl(MEM_STCFG0) & 0x7) == 0x5) && (NAND_CS == 0))
@@ -438,7 +438,7 @@ int __init au1xxx_nand_init (void)
438 this->hwcontrol = au1550_hwcontrol; 438 this->hwcontrol = au1550_hwcontrol;
439 this->dev_ready = au1550_device_ready; 439 this->dev_ready = au1550_device_ready;
440 /* 30 us command delay time */ 440 /* 30 us command delay time */
441 this->chip_delay = 30; 441 this->chip_delay = 30;
442 this->eccmode = NAND_ECC_SOFT; 442 this->eccmode = NAND_ECC_SOFT;
443 443
444 this->options = NAND_NO_AUTOINCR; 444 this->options = NAND_NO_AUTOINCR;
@@ -467,7 +467,7 @@ int __init au1xxx_nand_init (void)
467 467
468 outio: 468 outio:
469 iounmap ((void *)p_nand); 469 iounmap ((void *)p_nand);
470 470
471 outmem: 471 outmem:
472 kfree (au1550_mtd); 472 kfree (au1550_mtd);
473 return retval; 473 return retval;
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
index 4afa8ced05ad..056dfc17a075 100644
--- a/drivers/mtd/nand/autcpu12.c
+++ b/drivers/mtd/nand/autcpu12.c
@@ -5,8 +5,8 @@
5 * 5 *
6 * Derived from drivers/mtd/spia.c 6 * Derived from drivers/mtd/spia.c
7 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) 7 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
8 * 8 *
9 * $Id: autcpu12.c,v 1.22 2004/11/04 12:53:10 gleixner Exp $ 9 * $Id: autcpu12.c,v 1.23 2005/11/07 11:14:30 gleixner Exp $
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as 12 * it under the terms of the GNU General Public License version 2 as
@@ -14,7 +14,7 @@
14 * 14 *
15 * Overview: 15 * Overview:
16 * This is a device driver for the NAND flash device found on the 16 * This is a device driver for the NAND flash device found on the
17 * autronix autcpu12 board, which is a SmartMediaCard. It supports 17 * autronix autcpu12 board, which is a SmartMediaCard. It supports
18 * 16MiB, 32MiB and 64MiB cards. 18 * 16MiB, 32MiB and 64MiB cards.
19 * 19 *
20 * 20 *
@@ -93,7 +93,7 @@ static struct mtd_partition partition_info128k[] = {
93#define NUM_PARTITIONS32K 2 93#define NUM_PARTITIONS32K 2
94#define NUM_PARTITIONS64K 2 94#define NUM_PARTITIONS64K 2
95#define NUM_PARTITIONS128K 2 95#define NUM_PARTITIONS128K 2
96/* 96/*
97 * hardware specific access to control-lines 97 * hardware specific access to control-lines
98*/ 98*/
99static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd) 99static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd)
@@ -163,7 +163,7 @@ int __init autcpu12_init (void)
163 this->hwcontrol = autcpu12_hwcontrol; 163 this->hwcontrol = autcpu12_hwcontrol;
164 this->dev_ready = autcpu12_device_ready; 164 this->dev_ready = autcpu12_device_ready;
165 /* 20 us command delay time */ 165 /* 20 us command delay time */
166 this->chip_delay = 20; 166 this->chip_delay = 20;
167 this->eccmode = NAND_ECC_SOFT; 167 this->eccmode = NAND_ECC_SOFT;
168 168
169 /* Enable the following for a flash based bad block table */ 169 /* Enable the following for a flash based bad block table */
@@ -171,21 +171,21 @@ int __init autcpu12_init (void)
171 this->options = NAND_USE_FLASH_BBT; 171 this->options = NAND_USE_FLASH_BBT;
172 */ 172 */
173 this->options = NAND_USE_FLASH_BBT; 173 this->options = NAND_USE_FLASH_BBT;
174 174
175 /* Scan to find existance of the device */ 175 /* Scan to find existance of the device */
176 if (nand_scan (autcpu12_mtd, 1)) { 176 if (nand_scan (autcpu12_mtd, 1)) {
177 err = -ENXIO; 177 err = -ENXIO;
178 goto out_ior; 178 goto out_ior;
179 } 179 }
180 180
181 /* Register the partitions */ 181 /* Register the partitions */
182 switch(autcpu12_mtd->size){ 182 switch(autcpu12_mtd->size){
183 case SZ_16M: add_mtd_partitions(autcpu12_mtd, partition_info16k, NUM_PARTITIONS16K); break; 183 case SZ_16M: add_mtd_partitions(autcpu12_mtd, partition_info16k, NUM_PARTITIONS16K); break;
184 case SZ_32M: add_mtd_partitions(autcpu12_mtd, partition_info32k, NUM_PARTITIONS32K); break; 184 case SZ_32M: add_mtd_partitions(autcpu12_mtd, partition_info32k, NUM_PARTITIONS32K); break;
185 case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break; 185 case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break;
186 case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break; 186 case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break;
187 default: { 187 default: {
188 printk ("Unsupported SmartMedia device\n"); 188 printk ("Unsupported SmartMedia device\n");
189 err = -ENXIO; 189 err = -ENXIO;
190 goto out_ior; 190 goto out_ior;
191 } 191 }
@@ -213,7 +213,7 @@ static void __exit autcpu12_cleanup (void)
213 213
214 /* unmap physical adress */ 214 /* unmap physical adress */
215 iounmap((void *)autcpu12_fio_base); 215 iounmap((void *)autcpu12_fio_base);
216 216
217 /* Free the MTD device structure */ 217 /* Free the MTD device structure */
218 kfree (autcpu12_mtd); 218 kfree (autcpu12_mtd);
219} 219}
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index fdb5d4ad3d52..21d4e8f4b7af 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1,4 +1,4 @@
1/* 1/*
2 * drivers/mtd/nand/diskonchip.c 2 * drivers/mtd/nand/diskonchip.c
3 * 3 *
4 * (C) 2003 Red Hat, Inc. 4 * (C) 2003 Red Hat, Inc.
@@ -8,15 +8,15 @@
8 * Author: David Woodhouse <dwmw2@infradead.org> 8 * Author: David Woodhouse <dwmw2@infradead.org>
9 * Additional Diskonchip 2000 and Millennium support by Dan Brown <dan_brown@ieee.org> 9 * Additional Diskonchip 2000 and Millennium support by Dan Brown <dan_brown@ieee.org>
10 * Diskonchip Millennium Plus support by Kalev Lember <kalev@smartlink.ee> 10 * Diskonchip Millennium Plus support by Kalev Lember <kalev@smartlink.ee>
11 * 11 *
12 * Error correction code lifted from the old docecc code 12 * Error correction code lifted from the old docecc code
13 * Author: Fabrice Bellard (fabrice.bellard@netgem.com) 13 * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
14 * Copyright (C) 2000 Netgem S.A. 14 * Copyright (C) 2000 Netgem S.A.
15 * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de> 15 * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de>
16 * 16 *
17 * Interface to generic NAND code for M-Systems DiskOnChip devices 17 * Interface to generic NAND code for M-Systems DiskOnChip devices
18 * 18 *
19 * $Id: diskonchip.c,v 1.54 2005/04/07 14:22:55 dbrown Exp $ 19 * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $
20 */ 20 */
21 21
22#include <linux/kernel.h> 22#include <linux/kernel.h>
@@ -42,16 +42,16 @@
42static unsigned long __initdata doc_locations[] = { 42static unsigned long __initdata doc_locations[] = {
43#if defined (__alpha__) || defined(__i386__) || defined(__x86_64__) 43#if defined (__alpha__) || defined(__i386__) || defined(__x86_64__)
44#ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH 44#ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH
45 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000, 45 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000,
46 0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000, 46 0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000,
47 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000, 47 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000,
48 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000, 48 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000,
49 0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000, 49 0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000,
50#else /* CONFIG_MTD_DOCPROBE_HIGH */ 50#else /* CONFIG_MTD_DOCPROBE_HIGH */
51 0xc8000, 0xca000, 0xcc000, 0xce000, 51 0xc8000, 0xca000, 0xcc000, 0xce000,
52 0xd0000, 0xd2000, 0xd4000, 0xd6000, 52 0xd0000, 0xd2000, 0xd4000, 0xd6000,
53 0xd8000, 0xda000, 0xdc000, 0xde000, 53 0xd8000, 0xda000, 0xdc000, 0xde000,
54 0xe0000, 0xe2000, 0xe4000, 0xe6000, 54 0xe0000, 0xe2000, 0xe4000, 0xe6000,
55 0xe8000, 0xea000, 0xec000, 0xee000, 55 0xe8000, 0xea000, 0xec000, 0xee000,
56#endif /* CONFIG_MTD_DOCPROBE_HIGH */ 56#endif /* CONFIG_MTD_DOCPROBE_HIGH */
57#elif defined(__PPC__) 57#elif defined(__PPC__)
@@ -138,7 +138,7 @@ MODULE_PARM_DESC(doc_config_location, "Physical memory address at which to probe
138/* the Reed Solomon control structure */ 138/* the Reed Solomon control structure */
139static struct rs_control *rs_decoder; 139static struct rs_control *rs_decoder;
140 140
141/* 141/*
142 * The HW decoder in the DoC ASIC's provides us a error syndrome, 142 * The HW decoder in the DoC ASIC's provides us a error syndrome,
143 * which we must convert to a standard syndrom usable by the generic 143 * which we must convert to a standard syndrom usable by the generic
144 * Reed-Solomon library code. 144 * Reed-Solomon library code.
@@ -163,8 +163,8 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
163 /* Initialize the syndrom buffer */ 163 /* Initialize the syndrom buffer */
164 for (i = 0; i < NROOTS; i++) 164 for (i = 0; i < NROOTS; i++)
165 s[i] = ds[0]; 165 s[i] = ds[0];
166 /* 166 /*
167 * Evaluate 167 * Evaluate
168 * s[i] = ds[3]x^3 + ds[2]x^2 + ds[1]x^1 + ds[0] 168 * s[i] = ds[3]x^3 + ds[2]x^2 + ds[1]x^1 + ds[0]
169 * where x = alpha^(FCR + i) 169 * where x = alpha^(FCR + i)
170 */ 170 */
@@ -188,7 +188,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
188 if (nerr < 0) 188 if (nerr < 0)
189 return nerr; 189 return nerr;
190 190
191 /* 191 /*
192 * Correct the errors. The bitpositions are a bit of magic, 192 * Correct the errors. The bitpositions are a bit of magic,
193 * but they are given by the design of the de/encoder circuit 193 * but they are given by the design of the de/encoder circuit
194 * in the DoC ASIC's. 194 * in the DoC ASIC's.
@@ -205,7 +205,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
205 can be modified since pos is even */ 205 can be modified since pos is even */
206 index = (pos >> 3) ^ 1; 206 index = (pos >> 3) ^ 1;
207 bitpos = pos & 7; 207 bitpos = pos & 7;
208 if ((index >= 0 && index < SECTOR_SIZE) || 208 if ((index >= 0 && index < SECTOR_SIZE) ||
209 index == (SECTOR_SIZE + 1)) { 209 index == (SECTOR_SIZE + 1)) {
210 val = (uint8_t) (errval[i] >> (2 + bitpos)); 210 val = (uint8_t) (errval[i] >> (2 + bitpos));
211 parity ^= val; 211 parity ^= val;
@@ -216,7 +216,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc)
216 bitpos = (bitpos + 10) & 7; 216 bitpos = (bitpos + 10) & 7;
217 if (bitpos == 0) 217 if (bitpos == 0)
218 bitpos = 8; 218 bitpos = 8;
219 if ((index >= 0 && index < SECTOR_SIZE) || 219 if ((index >= 0 && index < SECTOR_SIZE) ||
220 index == (SECTOR_SIZE + 1)) { 220 index == (SECTOR_SIZE + 1)) {
221 val = (uint8_t)(errval[i] << (8 - bitpos)); 221 val = (uint8_t)(errval[i] << (8 - bitpos));
222 parity ^= val; 222 parity ^= val;
@@ -233,7 +233,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
233{ 233{
234 volatile char dummy; 234 volatile char dummy;
235 int i; 235 int i;
236 236
237 for (i = 0; i < cycles; i++) { 237 for (i = 0; i < cycles; i++) {
238 if (DoC_is_Millennium(doc)) 238 if (DoC_is_Millennium(doc))
239 dummy = ReadDOC(doc->virtadr, NOP); 239 dummy = ReadDOC(doc->virtadr, NOP);
@@ -242,7 +242,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
242 else 242 else
243 dummy = ReadDOC(doc->virtadr, DOCStatus); 243 dummy = ReadDOC(doc->virtadr, DOCStatus);
244 } 244 }
245 245
246} 246}
247 247
248#define CDSN_CTRL_FR_B_MASK (CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1) 248#define CDSN_CTRL_FR_B_MASK (CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1)
@@ -327,7 +327,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd)
327 return ret; 327 return ret;
328} 328}
329 329
330static void doc2000_writebuf(struct mtd_info *mtd, 330static void doc2000_writebuf(struct mtd_info *mtd,
331 const u_char *buf, int len) 331 const u_char *buf, int len)
332{ 332{
333 struct nand_chip *this = mtd->priv; 333 struct nand_chip *this = mtd->priv;
@@ -343,7 +343,7 @@ static void doc2000_writebuf(struct mtd_info *mtd,
343 if (debug) printk("\n"); 343 if (debug) printk("\n");
344} 344}
345 345
346static void doc2000_readbuf(struct mtd_info *mtd, 346static void doc2000_readbuf(struct mtd_info *mtd,
347 u_char *buf, int len) 347 u_char *buf, int len)
348{ 348{
349 struct nand_chip *this = mtd->priv; 349 struct nand_chip *this = mtd->priv;
@@ -358,7 +358,7 @@ static void doc2000_readbuf(struct mtd_info *mtd,
358 } 358 }
359} 359}
360 360
361static void doc2000_readbuf_dword(struct mtd_info *mtd, 361static void doc2000_readbuf_dword(struct mtd_info *mtd,
362 u_char *buf, int len) 362 u_char *buf, int len)
363{ 363{
364 struct nand_chip *this = mtd->priv; 364 struct nand_chip *this = mtd->priv;
@@ -379,7 +379,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd,
379 } 379 }
380} 380}
381 381
382static int doc2000_verifybuf(struct mtd_info *mtd, 382static int doc2000_verifybuf(struct mtd_info *mtd,
383 const u_char *buf, int len) 383 const u_char *buf, int len)
384{ 384{
385 struct nand_chip *this = mtd->priv; 385 struct nand_chip *this = mtd->priv;
@@ -406,12 +406,12 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
406 doc200x_hwcontrol(mtd, NAND_CTL_SETALE); 406 doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
407 this->write_byte(mtd, 0); 407 this->write_byte(mtd, 0);
408 doc200x_hwcontrol(mtd, NAND_CTL_CLRALE); 408 doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
409 409
410 /* We cant' use dev_ready here, but at least we wait for the 410 /* We cant' use dev_ready here, but at least we wait for the
411 * command to complete 411 * command to complete
412 */ 412 */
413 udelay(50); 413 udelay(50);
414 414
415 ret = this->read_byte(mtd) << 8; 415 ret = this->read_byte(mtd) << 8;
416 ret |= this->read_byte(mtd); 416 ret |= this->read_byte(mtd);
417 417
@@ -438,7 +438,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
438 this->read_buf = &doc2000_readbuf_dword; 438 this->read_buf = &doc2000_readbuf_dword;
439 } 439 }
440 } 440 }
441 441
442 return ret; 442 return ret;
443} 443}
444 444
@@ -469,7 +469,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
469 struct doc_priv *doc = this->priv; 469 struct doc_priv *doc = this->priv;
470 470
471 int status; 471 int status;
472 472
473 DoC_WaitReady(doc); 473 DoC_WaitReady(doc);
474 this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); 474 this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
475 DoC_WaitReady(doc); 475 DoC_WaitReady(doc);
@@ -503,7 +503,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd)
503 return ReadDOC(docptr, LastDataRead); 503 return ReadDOC(docptr, LastDataRead);
504} 504}
505 505
506static void doc2001_writebuf(struct mtd_info *mtd, 506static void doc2001_writebuf(struct mtd_info *mtd,
507 const u_char *buf, int len) 507 const u_char *buf, int len)
508{ 508{
509 struct nand_chip *this = mtd->priv; 509 struct nand_chip *this = mtd->priv;
@@ -517,7 +517,7 @@ static void doc2001_writebuf(struct mtd_info *mtd,
517 WriteDOC(0x00, docptr, WritePipeTerm); 517 WriteDOC(0x00, docptr, WritePipeTerm);
518} 518}
519 519
520static void doc2001_readbuf(struct mtd_info *mtd, 520static void doc2001_readbuf(struct mtd_info *mtd,
521 u_char *buf, int len) 521 u_char *buf, int len)
522{ 522{
523 struct nand_chip *this = mtd->priv; 523 struct nand_chip *this = mtd->priv;
@@ -535,7 +535,7 @@ static void doc2001_readbuf(struct mtd_info *mtd,
535 buf[i] = ReadDOC(docptr, LastDataRead); 535 buf[i] = ReadDOC(docptr, LastDataRead);
536} 536}
537 537
538static int doc2001_verifybuf(struct mtd_info *mtd, 538static int doc2001_verifybuf(struct mtd_info *mtd,
539 const u_char *buf, int len) 539 const u_char *buf, int len)
540{ 540{
541 struct nand_chip *this = mtd->priv; 541 struct nand_chip *this = mtd->priv;
@@ -570,7 +570,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd)
570 return ret; 570 return ret;
571} 571}
572 572
573static void doc2001plus_writebuf(struct mtd_info *mtd, 573static void doc2001plus_writebuf(struct mtd_info *mtd,
574 const u_char *buf, int len) 574 const u_char *buf, int len)
575{ 575{
576 struct nand_chip *this = mtd->priv; 576 struct nand_chip *this = mtd->priv;
@@ -587,7 +587,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd,
587 if (debug) printk("\n"); 587 if (debug) printk("\n");
588} 588}
589 589
590static void doc2001plus_readbuf(struct mtd_info *mtd, 590static void doc2001plus_readbuf(struct mtd_info *mtd,
591 u_char *buf, int len) 591 u_char *buf, int len)
592{ 592{
593 struct nand_chip *this = mtd->priv; 593 struct nand_chip *this = mtd->priv;
@@ -617,7 +617,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd,
617 if (debug) printk("\n"); 617 if (debug) printk("\n");
618} 618}
619 619
620static int doc2001plus_verifybuf(struct mtd_info *mtd, 620static int doc2001plus_verifybuf(struct mtd_info *mtd,
621 const u_char *buf, int len) 621 const u_char *buf, int len)
622{ 622{
623 struct nand_chip *this = mtd->priv; 623 struct nand_chip *this = mtd->priv;
@@ -797,7 +797,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col
797 WriteDOC(0, docptr, Mplus_FlashControl); 797 WriteDOC(0, docptr, Mplus_FlashControl);
798 } 798 }
799 799
800 /* 800 /*
801 * program and erase have their own busy handlers 801 * program and erase have their own busy handlers
802 * status and sequential in needs no delay 802 * status and sequential in needs no delay
803 */ 803 */
@@ -822,7 +822,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col
822 822
823 /* This applies to read commands */ 823 /* This applies to read commands */
824 default: 824 default:
825 /* 825 /*
826 * If we don't have access to the busy pin, we apply the given 826 * If we don't have access to the busy pin, we apply the given
827 * command delay 827 * command delay
828 */ 828 */
@@ -945,7 +945,7 @@ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
945 for (i = 0; i < 6; i++) { 945 for (i = 0; i < 6; i++) {
946 if (DoC_is_MillenniumPlus(doc)) 946 if (DoC_is_MillenniumPlus(doc))
947 ecc_code[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i); 947 ecc_code[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i);
948 else 948 else
949 ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i); 949 ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
950 if (ecc_code[i] != empty_write_ecc[i]) 950 if (ecc_code[i] != empty_write_ecc[i])
951 emptymatch = 0; 951 emptymatch = 0;
@@ -982,7 +982,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
982 void __iomem *docptr = doc->virtadr; 982 void __iomem *docptr = doc->virtadr;
983 volatile u_char dummy; 983 volatile u_char dummy;
984 int emptymatch = 1; 984 int emptymatch = 1;
985 985
986 /* flush the pipeline */ 986 /* flush the pipeline */
987 if (DoC_is_2000(doc)) { 987 if (DoC_is_2000(doc)) {
988 dummy = ReadDOC(docptr, 2k_ECCStatus); 988 dummy = ReadDOC(docptr, 2k_ECCStatus);
@@ -997,7 +997,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
997 dummy = ReadDOC(docptr, ECCConf); 997 dummy = ReadDOC(docptr, ECCConf);
998 dummy = ReadDOC(docptr, ECCConf); 998 dummy = ReadDOC(docptr, ECCConf);
999 } 999 }
1000 1000
1001 /* Error occured ? */ 1001 /* Error occured ? */
1002 if (dummy & 0x80) { 1002 if (dummy & 0x80) {
1003 for (i = 0; i < 6; i++) { 1003 for (i = 0; i < 6; i++) {
@@ -1035,7 +1035,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
1035 if (!emptymatch) ret = doc_ecc_decode (rs_decoder, dat, calc_ecc); 1035 if (!emptymatch) ret = doc_ecc_decode (rs_decoder, dat, calc_ecc);
1036 if (ret > 0) 1036 if (ret > 0)
1037 printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret); 1037 printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret);
1038 } 1038 }
1039 if (DoC_is_MillenniumPlus(doc)) 1039 if (DoC_is_MillenniumPlus(doc))
1040 WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); 1040 WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
1041 else 1041 else
@@ -1046,7 +1046,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_
1046 } 1046 }
1047 return ret; 1047 return ret;
1048} 1048}
1049 1049
1050//u_char mydatabuf[528]; 1050//u_char mydatabuf[528];
1051 1051
1052/* The strange out-of-order .oobfree list below is a (possibly unneeded) 1052/* The strange out-of-order .oobfree list below is a (possibly unneeded)
@@ -1065,7 +1065,7 @@ static struct nand_oobinfo doc200x_oobinfo = {
1065 .eccpos = {0, 1, 2, 3, 4, 5}, 1065 .eccpos = {0, 1, 2, 3, 4, 5},
1066 .oobfree = { {8, 8}, {6, 2} } 1066 .oobfree = { {8, 8}, {6, 2} }
1067}; 1067};
1068 1068
1069/* Find the (I)NFTL Media Header, and optionally also the mirror media header. 1069/* Find the (I)NFTL Media Header, and optionally also the mirror media header.
1070 On sucessful return, buf will contain a copy of the media header for 1070 On sucessful return, buf will contain a copy of the media header for
1071 further processing. id is the string to scan for, and will presumably be 1071 further processing. id is the string to scan for, and will presumably be
@@ -1251,7 +1251,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd,
1251 mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits); 1251 mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits);
1252 mh->FormatFlags = le32_to_cpu(mh->FormatFlags); 1252 mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
1253 mh->PercentUsed = le32_to_cpu(mh->PercentUsed); 1253 mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
1254 1254
1255 printk(KERN_INFO " bootRecordID = %s\n" 1255 printk(KERN_INFO " bootRecordID = %s\n"
1256 " NoOfBootImageBlocks = %d\n" 1256 " NoOfBootImageBlocks = %d\n"
1257 " NoOfBinaryPartitions = %d\n" 1257 " NoOfBinaryPartitions = %d\n"
@@ -1468,7 +1468,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd)
1468 ReadDOC(doc->virtadr, ChipID); 1468 ReadDOC(doc->virtadr, ChipID);
1469 if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) { 1469 if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) {
1470 /* It's not a Millennium; it's one of the newer 1470 /* It's not a Millennium; it's one of the newer
1471 DiskOnChip 2000 units with a similar ASIC. 1471 DiskOnChip 2000 units with a similar ASIC.
1472 Treat it like a Millennium, except that it 1472 Treat it like a Millennium, except that it
1473 can have multiple chips. */ 1473 can have multiple chips. */
1474 doc2000_count_chips(mtd); 1474 doc2000_count_chips(mtd);
@@ -1530,20 +1530,20 @@ static inline int __init doc_probe(unsigned long physadr)
1530 * to the DOCControl register. So we store the current contents 1530 * to the DOCControl register. So we store the current contents
1531 * of the DOCControl register's location, in case we later decide 1531 * of the DOCControl register's location, in case we later decide
1532 * that it's not a DiskOnChip, and want to put it back how we 1532 * that it's not a DiskOnChip, and want to put it back how we
1533 * found it. 1533 * found it.
1534 */ 1534 */
1535 save_control = ReadDOC(virtadr, DOCControl); 1535 save_control = ReadDOC(virtadr, DOCControl);
1536 1536
1537 /* Reset the DiskOnChip ASIC */ 1537 /* Reset the DiskOnChip ASIC */
1538 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, 1538 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
1539 virtadr, DOCControl); 1539 virtadr, DOCControl);
1540 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, 1540 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET,
1541 virtadr, DOCControl); 1541 virtadr, DOCControl);
1542 1542
1543 /* Enable the DiskOnChip ASIC */ 1543 /* Enable the DiskOnChip ASIC */
1544 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, 1544 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
1545 virtadr, DOCControl); 1545 virtadr, DOCControl);
1546 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, 1546 WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL,
1547 virtadr, DOCControl); 1547 virtadr, DOCControl);
1548 1548
1549 ChipID = ReadDOC(virtadr, ChipID); 1549 ChipID = ReadDOC(virtadr, ChipID);
@@ -1738,7 +1738,7 @@ static int __init init_nanddoc(void)
1738 int i, ret = 0; 1738 int i, ret = 0;
1739 1739
1740 /* We could create the decoder on demand, if memory is a concern. 1740 /* We could create the decoder on demand, if memory is a concern.
1741 * This way we have it handy, if an error happens 1741 * This way we have it handy, if an error happens
1742 * 1742 *
1743 * Symbolsize is 10 (bits) 1743 * Symbolsize is 10 (bits)
1744 * Primitve polynomial is x^10+x^3+1 1744 * Primitve polynomial is x^10+x^3+1
diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c
index 5549681ccdce..9b1fd2f387fa 100644
--- a/drivers/mtd/nand/edb7312.c
+++ b/drivers/mtd/nand/edb7312.c
@@ -6,7 +6,7 @@
6 * Derived from drivers/mtd/nand/autcpu12.c 6 * Derived from drivers/mtd/nand/autcpu12.c
7 * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) 7 * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
8 * 8 *
9 * $Id: edb7312.c,v 1.11 2004/11/04 12:53:10 gleixner Exp $ 9 * $Id: edb7312.c,v 1.12 2005/11/07 11:14:30 gleixner Exp $
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as 12 * it under the terms of the GNU General Public License version 2 as
@@ -71,27 +71,27 @@ static struct mtd_partition partition_info[] = {
71#endif 71#endif
72 72
73 73
74/* 74/*
75 * hardware specific access to control-lines 75 * hardware specific access to control-lines
76 */ 76 */
77static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd) 77static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd)
78{ 78{
79 switch(cmd) { 79 switch(cmd) {
80 80
81 case NAND_CTL_SETCLE: 81 case NAND_CTL_SETCLE:
82 clps_writeb(clps_readb(ep7312_pxdr) | 0x10, ep7312_pxdr); 82 clps_writeb(clps_readb(ep7312_pxdr) | 0x10, ep7312_pxdr);
83 break; 83 break;
84 case NAND_CTL_CLRCLE: 84 case NAND_CTL_CLRCLE:
85 clps_writeb(clps_readb(ep7312_pxdr) & ~0x10, ep7312_pxdr); 85 clps_writeb(clps_readb(ep7312_pxdr) & ~0x10, ep7312_pxdr);
86 break; 86 break;
87 87
88 case NAND_CTL_SETALE: 88 case NAND_CTL_SETALE:
89 clps_writeb(clps_readb(ep7312_pxdr) | 0x20, ep7312_pxdr); 89 clps_writeb(clps_readb(ep7312_pxdr) | 0x20, ep7312_pxdr);
90 break; 90 break;
91 case NAND_CTL_CLRALE: 91 case NAND_CTL_CLRALE:
92 clps_writeb(clps_readb(ep7312_pxdr) & ~0x20, ep7312_pxdr); 92 clps_writeb(clps_readb(ep7312_pxdr) & ~0x20, ep7312_pxdr);
93 break; 93 break;
94 94
95 case NAND_CTL_SETNCE: 95 case NAND_CTL_SETNCE:
96 clps_writeb((clps_readb(ep7312_pxdr) | 0x80) & ~0x40, ep7312_pxdr); 96 clps_writeb((clps_readb(ep7312_pxdr) | 0x80) & ~0x40, ep7312_pxdr);
97 break; 97 break;
@@ -122,16 +122,16 @@ static int __init ep7312_init (void)
122 int mtd_parts_nb = 0; 122 int mtd_parts_nb = 0;
123 struct mtd_partition *mtd_parts = 0; 123 struct mtd_partition *mtd_parts = 0;
124 void __iomem * ep7312_fio_base; 124 void __iomem * ep7312_fio_base;
125 125
126 /* Allocate memory for MTD device structure and private data */ 126 /* Allocate memory for MTD device structure and private data */
127 ep7312_mtd = kmalloc(sizeof(struct mtd_info) + 127 ep7312_mtd = kmalloc(sizeof(struct mtd_info) +
128 sizeof(struct nand_chip), 128 sizeof(struct nand_chip),
129 GFP_KERNEL); 129 GFP_KERNEL);
130 if (!ep7312_mtd) { 130 if (!ep7312_mtd) {
131 printk("Unable to allocate EDB7312 NAND MTD device structure.\n"); 131 printk("Unable to allocate EDB7312 NAND MTD device structure.\n");
132 return -ENOMEM; 132 return -ENOMEM;
133 } 133 }
134 134
135 /* map physical adress */ 135 /* map physical adress */
136 ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K); 136 ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K);
137 if(!ep7312_fio_base) { 137 if(!ep7312_fio_base) {
@@ -139,23 +139,23 @@ static int __init ep7312_init (void)
139 kfree(ep7312_mtd); 139 kfree(ep7312_mtd);
140 return -EIO; 140 return -EIO;
141 } 141 }
142 142
143 /* Get pointer to private data */ 143 /* Get pointer to private data */
144 this = (struct nand_chip *) (&ep7312_mtd[1]); 144 this = (struct nand_chip *) (&ep7312_mtd[1]);
145 145
146 /* Initialize structures */ 146 /* Initialize structures */
147 memset((char *) ep7312_mtd, 0, sizeof(struct mtd_info)); 147 memset((char *) ep7312_mtd, 0, sizeof(struct mtd_info));
148 memset((char *) this, 0, sizeof(struct nand_chip)); 148 memset((char *) this, 0, sizeof(struct nand_chip));
149 149
150 /* Link the private data with the MTD structure */ 150 /* Link the private data with the MTD structure */
151 ep7312_mtd->priv = this; 151 ep7312_mtd->priv = this;
152 152
153 /* 153 /*
154 * Set GPIO Port B control register so that the pins are configured 154 * Set GPIO Port B control register so that the pins are configured
155 * to be outputs for controlling the NAND flash. 155 * to be outputs for controlling the NAND flash.
156 */ 156 */
157 clps_writeb(0xf0, ep7312_pxddr); 157 clps_writeb(0xf0, ep7312_pxddr);
158 158
159 /* insert callbacks */ 159 /* insert callbacks */
160 this->IO_ADDR_R = ep7312_fio_base; 160 this->IO_ADDR_R = ep7312_fio_base;
161 this->IO_ADDR_W = ep7312_fio_base; 161 this->IO_ADDR_W = ep7312_fio_base;
@@ -163,14 +163,14 @@ static int __init ep7312_init (void)
163 this->dev_ready = ep7312_device_ready; 163 this->dev_ready = ep7312_device_ready;
164 /* 15 us command delay time */ 164 /* 15 us command delay time */
165 this->chip_delay = 15; 165 this->chip_delay = 15;
166 166
167 /* Scan to find existence of the device */ 167 /* Scan to find existence of the device */
168 if (nand_scan (ep7312_mtd, 1)) { 168 if (nand_scan (ep7312_mtd, 1)) {
169 iounmap((void *)ep7312_fio_base); 169 iounmap((void *)ep7312_fio_base);
170 kfree (ep7312_mtd); 170 kfree (ep7312_mtd);
171 return -ENXIO; 171 return -ENXIO;
172 } 172 }
173 173
174#ifdef CONFIG_MTD_PARTITIONS 174#ifdef CONFIG_MTD_PARTITIONS
175 ep7312_mtd->name = "edb7312-nand"; 175 ep7312_mtd->name = "edb7312-nand";
176 mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes, 176 mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes,
@@ -185,11 +185,11 @@ static int __init ep7312_init (void)
185 mtd_parts_nb = NUM_PARTITIONS; 185 mtd_parts_nb = NUM_PARTITIONS;
186 part_type = "static"; 186 part_type = "static";
187 } 187 }
188 188
189 /* Register the partitions */ 189 /* Register the partitions */
190 printk(KERN_NOTICE "Using %s partition definition\n", part_type); 190 printk(KERN_NOTICE "Using %s partition definition\n", part_type);
191 add_mtd_partitions(ep7312_mtd, mtd_parts, mtd_parts_nb); 191 add_mtd_partitions(ep7312_mtd, mtd_parts, mtd_parts_nb);
192 192
193 /* Return happy */ 193 /* Return happy */
194 return 0; 194 return 0;
195} 195}
@@ -201,13 +201,13 @@ module_init(ep7312_init);
201static void __exit ep7312_cleanup (void) 201static void __exit ep7312_cleanup (void)
202{ 202{
203 struct nand_chip *this = (struct nand_chip *) &ep7312_mtd[1]; 203 struct nand_chip *this = (struct nand_chip *) &ep7312_mtd[1];
204 204
205 /* Release resources, unregister device */ 205 /* Release resources, unregister device */
206 nand_release (ap7312_mtd); 206 nand_release (ap7312_mtd);
207 207
208 /* Free internal data buffer */ 208 /* Free internal data buffer */
209 kfree (this->data_buf); 209 kfree (this->data_buf);
210 210
211 /* Free the MTD device structure */ 211 /* Free the MTD device structure */
212 kfree (ep7312_mtd); 212 kfree (ep7312_mtd);
213} 213}
diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c
index 3825a7a0900c..041e4b3358fb 100644
--- a/drivers/mtd/nand/h1910.c
+++ b/drivers/mtd/nand/h1910.c
@@ -7,7 +7,7 @@
7 * Copyright (C) 2002 Marius Gröger (mag@sysgo.de) 7 * Copyright (C) 2002 Marius Gröger (mag@sysgo.de)
8 * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) 8 * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
9 * 9 *
10 * $Id: h1910.c,v 1.5 2004/11/04 12:53:10 gleixner Exp $ 10 * $Id: h1910.c,v 1.6 2005/11/07 11:14:30 gleixner Exp $
11 * 11 *
12 * This program is free software; you can redistribute it and/or modify 12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as 13 * it under the terms of the GNU General Public License version 2 as
@@ -54,24 +54,24 @@ static struct mtd_partition partition_info[] = {
54#endif 54#endif
55 55
56 56
57/* 57/*
58 * hardware specific access to control-lines 58 * hardware specific access to control-lines
59 */ 59 */
60static void h1910_hwcontrol(struct mtd_info *mtd, int cmd) 60static void h1910_hwcontrol(struct mtd_info *mtd, int cmd)
61{ 61{
62 struct nand_chip* this = (struct nand_chip *) (mtd->priv); 62 struct nand_chip* this = (struct nand_chip *) (mtd->priv);
63 63
64 switch(cmd) { 64 switch(cmd) {
65 65
66 case NAND_CTL_SETCLE: 66 case NAND_CTL_SETCLE:
67 this->IO_ADDR_R |= (1 << 2); 67 this->IO_ADDR_R |= (1 << 2);
68 this->IO_ADDR_W |= (1 << 2); 68 this->IO_ADDR_W |= (1 << 2);
69 break; 69 break;
70 case NAND_CTL_CLRCLE: 70 case NAND_CTL_CLRCLE:
71 this->IO_ADDR_R &= ~(1 << 2); 71 this->IO_ADDR_R &= ~(1 << 2);
72 this->IO_ADDR_W &= ~(1 << 2); 72 this->IO_ADDR_W &= ~(1 << 2);
73 break; 73 break;
74 74
75 case NAND_CTL_SETALE: 75 case NAND_CTL_SETALE:
76 this->IO_ADDR_R |= (1 << 3); 76 this->IO_ADDR_R |= (1 << 3);
77 this->IO_ADDR_W |= (1 << 3); 77 this->IO_ADDR_W |= (1 << 3);
@@ -80,7 +80,7 @@ static void h1910_hwcontrol(struct mtd_info *mtd, int cmd)
80 this->IO_ADDR_R &= ~(1 << 3); 80 this->IO_ADDR_R &= ~(1 << 3);
81 this->IO_ADDR_W &= ~(1 << 3); 81 this->IO_ADDR_W &= ~(1 << 3);
82 break; 82 break;
83 83
84 case NAND_CTL_SETNCE: 84 case NAND_CTL_SETNCE:
85 break; 85 break;
86 case NAND_CTL_CLRNCE: 86 case NAND_CTL_CLRNCE:
@@ -108,18 +108,18 @@ static int __init h1910_init (void)
108 int mtd_parts_nb = 0; 108 int mtd_parts_nb = 0;
109 struct mtd_partition *mtd_parts = 0; 109 struct mtd_partition *mtd_parts = 0;
110 void __iomem *nandaddr; 110 void __iomem *nandaddr;
111 111
112 if (!machine_is_h1900()) 112 if (!machine_is_h1900())
113 return -ENODEV; 113 return -ENODEV;
114 114
115 nandaddr = __ioremap(0x08000000, 0x1000, 0, 1); 115 nandaddr = __ioremap(0x08000000, 0x1000, 0, 1);
116 if (!nandaddr) { 116 if (!nandaddr) {
117 printk("Failed to ioremap nand flash.\n"); 117 printk("Failed to ioremap nand flash.\n");
118 return -ENOMEM; 118 return -ENOMEM;
119 } 119 }
120 120
121 /* Allocate memory for MTD device structure and private data */ 121 /* Allocate memory for MTD device structure and private data */
122 h1910_nand_mtd = kmalloc(sizeof(struct mtd_info) + 122 h1910_nand_mtd = kmalloc(sizeof(struct mtd_info) +
123 sizeof(struct nand_chip), 123 sizeof(struct nand_chip),
124 GFP_KERNEL); 124 GFP_KERNEL);
125 if (!h1910_nand_mtd) { 125 if (!h1910_nand_mtd) {
@@ -127,22 +127,22 @@ static int __init h1910_init (void)
127 iounmap ((void *) nandaddr); 127 iounmap ((void *) nandaddr);
128 return -ENOMEM; 128 return -ENOMEM;
129 } 129 }
130 130
131 /* Get pointer to private data */ 131 /* Get pointer to private data */
132 this = (struct nand_chip *) (&h1910_nand_mtd[1]); 132 this = (struct nand_chip *) (&h1910_nand_mtd[1]);
133 133
134 /* Initialize structures */ 134 /* Initialize structures */
135 memset((char *) h1910_nand_mtd, 0, sizeof(struct mtd_info)); 135 memset((char *) h1910_nand_mtd, 0, sizeof(struct mtd_info));
136 memset((char *) this, 0, sizeof(struct nand_chip)); 136 memset((char *) this, 0, sizeof(struct nand_chip));
137 137
138 /* Link the private data with the MTD structure */ 138 /* Link the private data with the MTD structure */
139 h1910_nand_mtd->priv = this; 139 h1910_nand_mtd->priv = this;
140 140
141 /* 141 /*
142 * Enable VPEN 142 * Enable VPEN
143 */ 143 */
144 GPSR(37) = GPIO_bit(37); 144 GPSR(37) = GPIO_bit(37);
145 145
146 /* insert callbacks */ 146 /* insert callbacks */
147 this->IO_ADDR_R = nandaddr; 147 this->IO_ADDR_R = nandaddr;
148 this->IO_ADDR_W = nandaddr; 148 this->IO_ADDR_W = nandaddr;
@@ -152,7 +152,7 @@ static int __init h1910_init (void)
152 this->chip_delay = 50; 152 this->chip_delay = 50;
153 this->eccmode = NAND_ECC_SOFT; 153 this->eccmode = NAND_ECC_SOFT;
154 this->options = NAND_NO_AUTOINCR; 154 this->options = NAND_NO_AUTOINCR;
155 155
156 /* Scan to find existence of the device */ 156 /* Scan to find existence of the device */
157 if (nand_scan (h1910_nand_mtd, 1)) { 157 if (nand_scan (h1910_nand_mtd, 1)) {
158 printk(KERN_NOTICE "No NAND device - returning -ENXIO\n"); 158 printk(KERN_NOTICE "No NAND device - returning -ENXIO\n");
@@ -160,9 +160,9 @@ static int __init h1910_init (void)
160 iounmap ((void *) nandaddr); 160 iounmap ((void *) nandaddr);
161 return -ENXIO; 161 return -ENXIO;
162 } 162 }
163 163
164#ifdef CONFIG_MTD_CMDLINE_PARTS 164#ifdef CONFIG_MTD_CMDLINE_PARTS
165 mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts, 165 mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts,
166 "h1910-nand"); 166 "h1910-nand");
167 if (mtd_parts_nb > 0) 167 if (mtd_parts_nb > 0)
168 part_type = "command line"; 168 part_type = "command line";
@@ -175,11 +175,11 @@ static int __init h1910_init (void)
175 mtd_parts_nb = NUM_PARTITIONS; 175 mtd_parts_nb = NUM_PARTITIONS;
176 part_type = "static"; 176 part_type = "static";
177 } 177 }
178 178
179 /* Register the partitions */ 179 /* Register the partitions */
180 printk(KERN_NOTICE "Using %s partition definition\n", part_type); 180 printk(KERN_NOTICE "Using %s partition definition\n", part_type);
181 add_mtd_partitions(h1910_nand_mtd, mtd_parts, mtd_parts_nb); 181 add_mtd_partitions(h1910_nand_mtd, mtd_parts, mtd_parts_nb);
182 182
183 /* Return happy */ 183 /* Return happy */
184 return 0; 184 return 0;
185} 185}
@@ -191,7 +191,7 @@ module_init(h1910_init);
191static void __exit h1910_cleanup (void) 191static void __exit h1910_cleanup (void)
192{ 192{
193 struct nand_chip *this = (struct nand_chip *) &h1910_nand_mtd[1]; 193 struct nand_chip *this = (struct nand_chip *) &h1910_nand_mtd[1];
194 194
195 /* Release resources, unregister device */ 195 /* Release resources, unregister device */
196 nand_release (h1910_nand_mtd); 196 nand_release (h1910_nand_mtd);
197 197
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index c18ea76ed408..4673ba79309b 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -5,14 +5,14 @@
5 * This is the generic MTD driver for NAND flash devices. It should be 5 * This is the generic MTD driver for NAND flash devices. It should be
6 * capable of working with almost all NAND chips currently available. 6 * capable of working with almost all NAND chips currently available.
7 * Basic support for AG-AND chips is provided. 7 * Basic support for AG-AND chips is provided.
8 * 8 *
9 * Additional technical information is available on 9 * Additional technical information is available on
10 * http://www.linux-mtd.infradead.org/tech/nand.html 10 * http://www.linux-mtd.infradead.org/tech/nand.html
11 * 11 *
12 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) 12 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
13 * 2002 Thomas Gleixner (tglx@linutronix.de) 13 * 2002 Thomas Gleixner (tglx@linutronix.de)
14 * 14 *
15 * 02-08-2004 tglx: support for strange chips, which cannot auto increment 15 * 02-08-2004 tglx: support for strange chips, which cannot auto increment
16 * pages on read / read_oob 16 * pages on read / read_oob
17 * 17 *
18 * 03-17-2004 tglx: Check ready before auto increment check. Simon Bayes 18 * 03-17-2004 tglx: Check ready before auto increment check. Simon Bayes
@@ -21,7 +21,7 @@
21 * Make reads over block boundaries work too 21 * Make reads over block boundaries work too
22 * 22 *
23 * 04-14-2004 tglx: first working version for 2k page size chips 23 * 04-14-2004 tglx: first working version for 2k page size chips
24 * 24 *
25 * 05-19-2004 tglx: Basic support for Renesas AG-AND chips 25 * 05-19-2004 tglx: Basic support for Renesas AG-AND chips
26 * 26 *
27 * 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared 27 * 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared
@@ -30,27 +30,27 @@
30 * 30 *
31 * 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb" issue. 31 * 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb" issue.
32 * Basically, any block not rewritten may lose data when surrounding blocks 32 * Basically, any block not rewritten may lose data when surrounding blocks
33 * are rewritten many times. JFFS2 ensures this doesn't happen for blocks 33 * are rewritten many times. JFFS2 ensures this doesn't happen for blocks
34 * it uses, but the Bad Block Table(s) may not be rewritten. To ensure they 34 * it uses, but the Bad Block Table(s) may not be rewritten. To ensure they
35 * do not lose data, force them to be rewritten when some of the surrounding 35 * do not lose data, force them to be rewritten when some of the surrounding
36 * blocks are erased. Rather than tracking a specific nearby block (which 36 * blocks are erased. Rather than tracking a specific nearby block (which
37 * could itself go bad), use a page address 'mask' to select several blocks 37 * could itself go bad), use a page address 'mask' to select several blocks
38 * in the same area, and rewrite the BBT when any of them are erased. 38 * in the same area, and rewrite the BBT when any of them are erased.
39 * 39 *
40 * 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas 40 * 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas
41 * AG-AND chips. If there was a sudden loss of power during an erase operation, 41 * AG-AND chips. If there was a sudden loss of power during an erase operation,
42 * a "device recovery" operation must be performed when power is restored 42 * a "device recovery" operation must be performed when power is restored
43 * to ensure correct operation. 43 * to ensure correct operation.
44 * 44 *
45 * 01-20-2005 dmarlin: added support for optional hardware specific callback routine to 45 * 01-20-2005 dmarlin: added support for optional hardware specific callback routine to
46 * perform extra error status checks on erase and write failures. This required 46 * perform extra error status checks on erase and write failures. This required
47 * adding a wrapper function for nand_read_ecc. 47 * adding a wrapper function for nand_read_ecc.
48 * 48 *
49 * 08-20-2005 vwool: suspend/resume added 49 * 08-20-2005 vwool: suspend/resume added
50 * 50 *
51 * Credits: 51 * Credits:
52 * David Woodhouse for adding multichip support 52 * David Woodhouse for adding multichip support
53 * 53 *
54 * Aleph One Ltd. and Toby Churchill Ltd. for supporting the 54 * Aleph One Ltd. and Toby Churchill Ltd. for supporting the
55 * rework for 2K page size chips 55 * rework for 2K page size chips
56 * 56 *
@@ -105,8 +105,8 @@ static struct nand_oobinfo nand_oob_64 = {
105 .useecc = MTD_NANDECC_AUTOPLACE, 105 .useecc = MTD_NANDECC_AUTOPLACE,
106 .eccbytes = 24, 106 .eccbytes = 24,
107 .eccpos = { 107 .eccpos = {
108 40, 41, 42, 43, 44, 45, 46, 47, 108 40, 41, 42, 43, 44, 45, 46, 47,
109 48, 49, 50, 51, 52, 53, 54, 55, 109 48, 49, 50, 51, 52, 53, 54, 55,
110 56, 57, 58, 59, 60, 61, 62, 63}, 110 56, 57, 58, 59, 60, 61, 62, 63},
111 .oobfree = { {2, 38} } 111 .oobfree = { {2, 38} }
112}; 112};
@@ -149,19 +149,19 @@ static void nand_sync (struct mtd_info *mtd);
149static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, 149static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf,
150 struct nand_oobinfo *oobsel, int mode); 150 struct nand_oobinfo *oobsel, int mode);
151#ifdef CONFIG_MTD_NAND_VERIFY_WRITE 151#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
152static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, 152static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
153 u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode); 153 u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
154#else 154#else
155#define nand_verify_pages(...) (0) 155#define nand_verify_pages(...) (0)
156#endif 156#endif
157 157
158static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state); 158static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state);
159 159
160/** 160/**
161 * nand_release_device - [GENERIC] release chip 161 * nand_release_device - [GENERIC] release chip
162 * @mtd: MTD device structure 162 * @mtd: MTD device structure
163 * 163 *
164 * Deselect, release chip lock and wake up anyone waiting on the device 164 * Deselect, release chip lock and wake up anyone waiting on the device
165 */ 165 */
166static void nand_release_device (struct mtd_info *mtd) 166static void nand_release_device (struct mtd_info *mtd)
167{ 167{
@@ -215,7 +215,7 @@ static void nand_write_byte(struct mtd_info *mtd, u_char byte)
215 * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip 215 * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
216 * @mtd: MTD device structure 216 * @mtd: MTD device structure
217 * 217 *
218 * Default read function for 16bit buswith with 218 * Default read function for 16bit buswith with
219 * endianess conversion 219 * endianess conversion
220 */ 220 */
221static u_char nand_read_byte16(struct mtd_info *mtd) 221static u_char nand_read_byte16(struct mtd_info *mtd)
@@ -242,7 +242,7 @@ static void nand_write_byte16(struct mtd_info *mtd, u_char byte)
242 * nand_read_word - [DEFAULT] read one word from the chip 242 * nand_read_word - [DEFAULT] read one word from the chip
243 * @mtd: MTD device structure 243 * @mtd: MTD device structure
244 * 244 *
245 * Default read function for 16bit buswith without 245 * Default read function for 16bit buswith without
246 * endianess conversion 246 * endianess conversion
247 */ 247 */
248static u16 nand_read_word(struct mtd_info *mtd) 248static u16 nand_read_word(struct mtd_info *mtd)
@@ -256,7 +256,7 @@ static u16 nand_read_word(struct mtd_info *mtd)
256 * @mtd: MTD device structure 256 * @mtd: MTD device structure
257 * @word: data word to write 257 * @word: data word to write
258 * 258 *
259 * Default write function for 16bit buswith without 259 * Default write function for 16bit buswith without
260 * endianess conversion 260 * endianess conversion
261 */ 261 */
262static void nand_write_word(struct mtd_info *mtd, u16 word) 262static void nand_write_word(struct mtd_info *mtd, u16 word)
@@ -277,7 +277,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chip)
277 struct nand_chip *this = mtd->priv; 277 struct nand_chip *this = mtd->priv;
278 switch(chip) { 278 switch(chip) {
279 case -1: 279 case -1:
280 this->hwcontrol(mtd, NAND_CTL_CLRNCE); 280 this->hwcontrol(mtd, NAND_CTL_CLRNCE);
281 break; 281 break;
282 case 0: 282 case 0:
283 this->hwcontrol(mtd, NAND_CTL_SETNCE); 283 this->hwcontrol(mtd, NAND_CTL_SETNCE);
@@ -306,7 +306,7 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
306} 306}
307 307
308/** 308/**
309 * nand_read_buf - [DEFAULT] read chip data into buffer 309 * nand_read_buf - [DEFAULT] read chip data into buffer
310 * @mtd: MTD device structure 310 * @mtd: MTD device structure
311 * @buf: buffer to store date 311 * @buf: buffer to store date
312 * @len: number of bytes to read 312 * @len: number of bytes to read
@@ -323,7 +323,7 @@ static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
323} 323}
324 324
325/** 325/**
326 * nand_verify_buf - [DEFAULT] Verify chip data against buffer 326 * nand_verify_buf - [DEFAULT] Verify chip data against buffer
327 * @mtd: MTD device structure 327 * @mtd: MTD device structure
328 * @buf: buffer containing the data to compare 328 * @buf: buffer containing the data to compare
329 * @len: number of bytes to compare 329 * @len: number of bytes to compare
@@ -356,14 +356,14 @@ static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
356 struct nand_chip *this = mtd->priv; 356 struct nand_chip *this = mtd->priv;
357 u16 *p = (u16 *) buf; 357 u16 *p = (u16 *) buf;
358 len >>= 1; 358 len >>= 1;
359 359
360 for (i=0; i<len; i++) 360 for (i=0; i<len; i++)
361 writew(p[i], this->IO_ADDR_W); 361 writew(p[i], this->IO_ADDR_W);
362 362
363} 363}
364 364
365/** 365/**
366 * nand_read_buf16 - [DEFAULT] read chip data into buffer 366 * nand_read_buf16 - [DEFAULT] read chip data into buffer
367 * @mtd: MTD device structure 367 * @mtd: MTD device structure
368 * @buf: buffer to store date 368 * @buf: buffer to store date
369 * @len: number of bytes to read 369 * @len: number of bytes to read
@@ -382,7 +382,7 @@ static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
382} 382}
383 383
384/** 384/**
385 * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer 385 * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer
386 * @mtd: MTD device structure 386 * @mtd: MTD device structure
387 * @buf: buffer containing the data to compare 387 * @buf: buffer containing the data to compare
388 * @len: number of bytes to compare 388 * @len: number of bytes to compare
@@ -409,7 +409,7 @@ static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
409 * @ofs: offset from device start 409 * @ofs: offset from device start
410 * @getchip: 0, if the chip is already selected 410 * @getchip: 0, if the chip is already selected
411 * 411 *
412 * Check, if the block is bad. 412 * Check, if the block is bad.
413 */ 413 */
414static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) 414static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
415{ 415{
@@ -426,8 +426,8 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
426 426
427 /* Select the NAND device */ 427 /* Select the NAND device */
428 this->select_chip(mtd, chipnr); 428 this->select_chip(mtd, chipnr);
429 } else 429 } else
430 page = (int) ofs; 430 page = (int) ofs;
431 431
432 if (this->options & NAND_BUSWIDTH_16) { 432 if (this->options & NAND_BUSWIDTH_16) {
433 this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask); 433 this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask);
@@ -441,12 +441,12 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
441 if (this->read_byte(mtd) != 0xff) 441 if (this->read_byte(mtd) != 0xff)
442 res = 1; 442 res = 1;
443 } 443 }
444 444
445 if (getchip) { 445 if (getchip) {
446 /* Deselect and wake up anyone waiting on the device */ 446 /* Deselect and wake up anyone waiting on the device */
447 nand_release_device(mtd); 447 nand_release_device(mtd);
448 } 448 }
449 449
450 return res; 450 return res;
451} 451}
452 452
@@ -464,7 +464,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
464 u_char buf[2] = {0, 0}; 464 u_char buf[2] = {0, 0};
465 size_t retlen; 465 size_t retlen;
466 int block; 466 int block;
467 467
468 /* Get block number */ 468 /* Get block number */
469 block = ((int) ofs) >> this->bbt_erase_shift; 469 block = ((int) ofs) >> this->bbt_erase_shift;
470 if (this->bbt) 470 if (this->bbt)
@@ -473,25 +473,25 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
473 /* Do we have a flash based bad block table ? */ 473 /* Do we have a flash based bad block table ? */
474 if (this->options & NAND_USE_FLASH_BBT) 474 if (this->options & NAND_USE_FLASH_BBT)
475 return nand_update_bbt (mtd, ofs); 475 return nand_update_bbt (mtd, ofs);
476 476
477 /* We write two bytes, so we dont have to mess with 16 bit access */ 477 /* We write two bytes, so we dont have to mess with 16 bit access */
478 ofs += mtd->oobsize + (this->badblockpos & ~0x01); 478 ofs += mtd->oobsize + (this->badblockpos & ~0x01);
479 return nand_write_oob (mtd, ofs , 2, &retlen, buf); 479 return nand_write_oob (mtd, ofs , 2, &retlen, buf);
480} 480}
481 481
482/** 482/**
483 * nand_check_wp - [GENERIC] check if the chip is write protected 483 * nand_check_wp - [GENERIC] check if the chip is write protected
484 * @mtd: MTD device structure 484 * @mtd: MTD device structure
485 * Check, if the device is write protected 485 * Check, if the device is write protected
486 * 486 *
487 * The function expects, that the device is already selected 487 * The function expects, that the device is already selected
488 */ 488 */
489static int nand_check_wp (struct mtd_info *mtd) 489static int nand_check_wp (struct mtd_info *mtd)
490{ 490{
491 struct nand_chip *this = mtd->priv; 491 struct nand_chip *this = mtd->priv;
492 /* Check the WP bit */ 492 /* Check the WP bit */
493 this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1); 493 this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
494 return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1; 494 return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1;
495} 495}
496 496
497/** 497/**
@@ -507,15 +507,15 @@ static int nand_check_wp (struct mtd_info *mtd)
507static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt) 507static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
508{ 508{
509 struct nand_chip *this = mtd->priv; 509 struct nand_chip *this = mtd->priv;
510 510
511 if (!this->bbt) 511 if (!this->bbt)
512 return this->block_bad(mtd, ofs, getchip); 512 return this->block_bad(mtd, ofs, getchip);
513 513
514 /* Return info from the table */ 514 /* Return info from the table */
515 return nand_isbad_bbt (mtd, ofs, allowbbt); 515 return nand_isbad_bbt (mtd, ofs, allowbbt);
516} 516}
517 517
518/* 518/*
519 * Wait for the ready pin, after a command 519 * Wait for the ready pin, after a command
520 * The timeout is catched later. 520 * The timeout is catched later.
521 */ 521 */
@@ -529,7 +529,7 @@ static void nand_wait_ready(struct mtd_info *mtd)
529 if (this->dev_ready(mtd)) 529 if (this->dev_ready(mtd))
530 return; 530 return;
531 touch_softlockup_watchdog(); 531 touch_softlockup_watchdog();
532 } while (time_before(jiffies, timeo)); 532 } while (time_before(jiffies, timeo));
533} 533}
534 534
535/** 535/**
@@ -592,13 +592,13 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
592 /* Latch in address */ 592 /* Latch in address */
593 this->hwcontrol(mtd, NAND_CTL_CLRALE); 593 this->hwcontrol(mtd, NAND_CTL_CLRALE);
594 } 594 }
595 595
596 /* 596 /*
597 * program and erase have their own busy handlers 597 * program and erase have their own busy handlers
598 * status and sequential in needs no delay 598 * status and sequential in needs no delay
599 */ 599 */
600 switch (command) { 600 switch (command) {
601 601
602 case NAND_CMD_PAGEPROG: 602 case NAND_CMD_PAGEPROG:
603 case NAND_CMD_ERASE1: 603 case NAND_CMD_ERASE1:
604 case NAND_CMD_ERASE2: 604 case NAND_CMD_ERASE2:
@@ -607,7 +607,7 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
607 return; 607 return;
608 608
609 case NAND_CMD_RESET: 609 case NAND_CMD_RESET:
610 if (this->dev_ready) 610 if (this->dev_ready)
611 break; 611 break;
612 udelay(this->chip_delay); 612 udelay(this->chip_delay);
613 this->hwcontrol(mtd, NAND_CTL_SETCLE); 613 this->hwcontrol(mtd, NAND_CTL_SETCLE);
@@ -616,16 +616,16 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
616 while ( !(this->read_byte(mtd) & NAND_STATUS_READY)); 616 while ( !(this->read_byte(mtd) & NAND_STATUS_READY));
617 return; 617 return;
618 618
619 /* This applies to read commands */ 619 /* This applies to read commands */
620 default: 620 default:
621 /* 621 /*
622 * If we don't have access to the busy pin, we apply the given 622 * If we don't have access to the busy pin, we apply the given
623 * command delay 623 * command delay
624 */ 624 */
625 if (!this->dev_ready) { 625 if (!this->dev_ready) {
626 udelay (this->chip_delay); 626 udelay (this->chip_delay);
627 return; 627 return;
628 } 628 }
629 } 629 }
630 /* Apply this short delay always to ensure that we do wait tWB in 630 /* Apply this short delay always to ensure that we do wait tWB in
631 * any case on any machine. */ 631 * any case on any machine. */
@@ -655,8 +655,8 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
655 column += mtd->oobblock; 655 column += mtd->oobblock;
656 command = NAND_CMD_READ0; 656 command = NAND_CMD_READ0;
657 } 657 }
658 658
659 659
660 /* Begin command latch cycle */ 660 /* Begin command latch cycle */
661 this->hwcontrol(mtd, NAND_CTL_SETCLE); 661 this->hwcontrol(mtd, NAND_CTL_SETCLE);
662 /* Write out the command to the device. */ 662 /* Write out the command to the device. */
@@ -674,7 +674,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
674 column >>= 1; 674 column >>= 1;
675 this->write_byte(mtd, column & 0xff); 675 this->write_byte(mtd, column & 0xff);
676 this->write_byte(mtd, column >> 8); 676 this->write_byte(mtd, column >> 8);
677 } 677 }
678 if (page_addr != -1) { 678 if (page_addr != -1) {
679 this->write_byte(mtd, (unsigned char) (page_addr & 0xff)); 679 this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
680 this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff)); 680 this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
@@ -685,13 +685,13 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
685 /* Latch in address */ 685 /* Latch in address */
686 this->hwcontrol(mtd, NAND_CTL_CLRALE); 686 this->hwcontrol(mtd, NAND_CTL_CLRALE);
687 } 687 }
688 688
689 /* 689 /*
690 * program and erase have their own busy handlers 690 * program and erase have their own busy handlers
691 * status, sequential in, and deplete1 need no delay 691 * status, sequential in, and deplete1 need no delay
692 */ 692 */
693 switch (command) { 693 switch (command) {
694 694
695 case NAND_CMD_CACHEDPROG: 695 case NAND_CMD_CACHEDPROG:
696 case NAND_CMD_PAGEPROG: 696 case NAND_CMD_PAGEPROG:
697 case NAND_CMD_ERASE1: 697 case NAND_CMD_ERASE1:
@@ -701,7 +701,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
701 case NAND_CMD_DEPLETE1: 701 case NAND_CMD_DEPLETE1:
702 return; 702 return;
703 703
704 /* 704 /*
705 * read error status commands require only a short delay 705 * read error status commands require only a short delay
706 */ 706 */
707 case NAND_CMD_STATUS_ERROR: 707 case NAND_CMD_STATUS_ERROR:
@@ -713,7 +713,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
713 return; 713 return;
714 714
715 case NAND_CMD_RESET: 715 case NAND_CMD_RESET:
716 if (this->dev_ready) 716 if (this->dev_ready)
717 break; 717 break;
718 udelay(this->chip_delay); 718 udelay(this->chip_delay);
719 this->hwcontrol(mtd, NAND_CTL_SETCLE); 719 this->hwcontrol(mtd, NAND_CTL_SETCLE);
@@ -730,17 +730,17 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
730 /* End command latch cycle */ 730 /* End command latch cycle */
731 this->hwcontrol(mtd, NAND_CTL_CLRCLE); 731 this->hwcontrol(mtd, NAND_CTL_CLRCLE);
732 /* Fall through into ready check */ 732 /* Fall through into ready check */
733 733
734 /* This applies to read commands */ 734 /* This applies to read commands */
735 default: 735 default:
736 /* 736 /*
737 * If we don't have access to the busy pin, we apply the given 737 * If we don't have access to the busy pin, we apply the given
738 * command delay 738 * command delay
739 */ 739 */
740 if (!this->dev_ready) { 740 if (!this->dev_ready) {
741 udelay (this->chip_delay); 741 udelay (this->chip_delay);
742 return; 742 return;
743 } 743 }
744 } 744 }
745 745
746 /* Apply this short delay always to ensure that we do wait tWB in 746 /* Apply this short delay always to ensure that we do wait tWB in
@@ -754,7 +754,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
754 * nand_get_device - [GENERIC] Get chip for selected access 754 * nand_get_device - [GENERIC] Get chip for selected access
755 * @this: the nand chip descriptor 755 * @this: the nand chip descriptor
756 * @mtd: MTD device structure 756 * @mtd: MTD device structure
757 * @new_state: the state which is requested 757 * @new_state: the state which is requested
758 * 758 *
759 * Get the device and lock it for exclusive access 759 * Get the device and lock it for exclusive access
760 */ 760 */
@@ -802,7 +802,7 @@ retry:
802 * @state: state to select the max. timeout value 802 * @state: state to select the max. timeout value
803 * 803 *
804 * Wait for command done. This applies to erase and program only 804 * Wait for command done. This applies to erase and program only
805 * Erase can take up to 400ms and program up to 20ms according to 805 * Erase can take up to 400ms and program up to 20ms according to
806 * general NAND and SmartMedia specs 806 * general NAND and SmartMedia specs
807 * 807 *
808*/ 808*/
@@ -811,7 +811,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
811 811
812 unsigned long timeo = jiffies; 812 unsigned long timeo = jiffies;
813 int status; 813 int status;
814 814
815 if (state == FL_ERASING) 815 if (state == FL_ERASING)
816 timeo += (HZ * 400) / 1000; 816 timeo += (HZ * 400) / 1000;
817 else 817 else
@@ -823,17 +823,17 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
823 823
824 if ((state == FL_ERASING) && (this->options & NAND_IS_AND)) 824 if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
825 this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1); 825 this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
826 else 826 else
827 this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1); 827 this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
828 828
829 while (time_before(jiffies, timeo)) { 829 while (time_before(jiffies, timeo)) {
830 /* Check, if we were interrupted */ 830 /* Check, if we were interrupted */
831 if (this->state != state) 831 if (this->state != state)
832 return 0; 832 return 0;
833 833
834 if (this->dev_ready) { 834 if (this->dev_ready) {
835 if (this->dev_ready(mtd)) 835 if (this->dev_ready(mtd))
836 break; 836 break;
837 } else { 837 } else {
838 if (this->read_byte(mtd) & NAND_STATUS_READY) 838 if (this->read_byte(mtd) & NAND_STATUS_READY)
839 break; 839 break;
@@ -859,7 +859,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
859 * 859 *
860 * Cached programming is not supported yet. 860 * Cached programming is not supported yet.
861 */ 861 */
862static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, 862static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page,
863 u_char *oob_buf, struct nand_oobinfo *oobsel, int cached) 863 u_char *oob_buf, struct nand_oobinfo *oobsel, int cached)
864{ 864{
865 int i, status; 865 int i, status;
@@ -868,10 +868,10 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
868 int *oob_config = oobsel->eccpos; 868 int *oob_config = oobsel->eccpos;
869 int datidx = 0, eccidx = 0, eccsteps = this->eccsteps; 869 int datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
870 int eccbytes = 0; 870 int eccbytes = 0;
871 871
872 /* FIXME: Enable cached programming */ 872 /* FIXME: Enable cached programming */
873 cached = 0; 873 cached = 0;
874 874
875 /* Send command to begin auto page programming */ 875 /* Send command to begin auto page programming */
876 this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page); 876 this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
877 877
@@ -882,7 +882,7 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
882 printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n"); 882 printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
883 this->write_buf(mtd, this->data_poi, mtd->oobblock); 883 this->write_buf(mtd, this->data_poi, mtd->oobblock);
884 break; 884 break;
885 885
886 /* Software ecc 3/256, write all */ 886 /* Software ecc 3/256, write all */
887 case NAND_ECC_SOFT: 887 case NAND_ECC_SOFT:
888 for (; eccsteps; eccsteps--) { 888 for (; eccsteps; eccsteps--) {
@@ -911,11 +911,11 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
911 } 911 }
912 break; 912 break;
913 } 913 }
914 914
915 /* Write out OOB data */ 915 /* Write out OOB data */
916 if (this->options & NAND_HWECC_SYNDROME) 916 if (this->options & NAND_HWECC_SYNDROME)
917 this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes); 917 this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes);
918 else 918 else
919 this->write_buf(mtd, oob_buf, mtd->oobsize); 919 this->write_buf(mtd, oob_buf, mtd->oobsize);
920 920
921 /* Send command to actually program the data */ 921 /* Send command to actually program the data */
@@ -940,7 +940,7 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
940 /* wait until cache is ready*/ 940 /* wait until cache is ready*/
941 // status = this->waitfunc (mtd, this, FL_CACHEDRPG); 941 // status = this->waitfunc (mtd, this, FL_CACHEDRPG);
942 } 942 }
943 return 0; 943 return 0;
944} 944}
945 945
946#ifdef CONFIG_MTD_NAND_VERIFY_WRITE 946#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
@@ -956,19 +956,19 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
956 * @oobmode: 1 = full buffer verify, 0 = ecc only 956 * @oobmode: 1 = full buffer verify, 0 = ecc only
957 * 957 *
958 * The NAND device assumes that it is always writing to a cleanly erased page. 958 * The NAND device assumes that it is always writing to a cleanly erased page.
959 * Hence, it performs its internal write verification only on bits that 959 * Hence, it performs its internal write verification only on bits that
960 * transitioned from 1 to 0. The device does NOT verify the whole page on a 960 * transitioned from 1 to 0. The device does NOT verify the whole page on a
961 * byte by byte basis. It is possible that the page was not completely erased 961 * byte by byte basis. It is possible that the page was not completely erased
962 * or the page is becoming unusable due to wear. The read with ECC would catch 962 * or the page is becoming unusable due to wear. The read with ECC would catch
963 * the error later when the ECC page check fails, but we would rather catch 963 * the error later when the ECC page check fails, but we would rather catch
964 * it early in the page write stage. Better to write no data than invalid data. 964 * it early in the page write stage. Better to write no data than invalid data.
965 */ 965 */
966static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages, 966static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
967 u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode) 967 u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
968{ 968{
969 int i, j, datidx = 0, oobofs = 0, res = -EIO; 969 int i, j, datidx = 0, oobofs = 0, res = -EIO;
970 int eccsteps = this->eccsteps; 970 int eccsteps = this->eccsteps;
971 int hweccbytes; 971 int hweccbytes;
972 u_char oobdata[64]; 972 u_char oobdata[64];
973 973
974 hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0; 974 hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0;
@@ -1008,7 +1008,7 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
1008 1008
1009 if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) { 1009 if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) {
1010 int ecccnt = oobsel->eccbytes; 1010 int ecccnt = oobsel->eccbytes;
1011 1011
1012 for (i = 0; i < ecccnt; i++) { 1012 for (i = 0; i < ecccnt; i++) {
1013 int idx = oobsel->eccpos[i]; 1013 int idx = oobsel->eccpos[i];
1014 if (oobdata[idx] != oob_buf[oobofs + idx] ) { 1014 if (oobdata[idx] != oob_buf[oobofs + idx] ) {
@@ -1018,20 +1018,20 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
1018 goto out; 1018 goto out;
1019 } 1019 }
1020 } 1020 }
1021 } 1021 }
1022 } 1022 }
1023 oobofs += mtd->oobsize - hweccbytes * eccsteps; 1023 oobofs += mtd->oobsize - hweccbytes * eccsteps;
1024 page++; 1024 page++;
1025 numpages--; 1025 numpages--;
1026 1026
1027 /* Apply delay or wait for ready/busy pin 1027 /* Apply delay or wait for ready/busy pin
1028 * Do this before the AUTOINCR check, so no problems 1028 * Do this before the AUTOINCR check, so no problems
1029 * arise if a chip which does auto increment 1029 * arise if a chip which does auto increment
1030 * is marked as NOAUTOINCR by the board driver. 1030 * is marked as NOAUTOINCR by the board driver.
1031 * Do this also before returning, so the chip is 1031 * Do this also before returning, so the chip is
1032 * ready for the next command. 1032 * ready for the next command.
1033 */ 1033 */
1034 if (!this->dev_ready) 1034 if (!this->dev_ready)
1035 udelay (this->chip_delay); 1035 udelay (this->chip_delay);
1036 else 1036 else
1037 nand_wait_ready(mtd); 1037 nand_wait_ready(mtd);
@@ -1039,17 +1039,17 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
1039 /* All done, return happy */ 1039 /* All done, return happy */
1040 if (!numpages) 1040 if (!numpages)
1041 return 0; 1041 return 0;
1042 1042
1043 1043
1044 /* Check, if the chip supports auto page increment */ 1044 /* Check, if the chip supports auto page increment */
1045 if (!NAND_CANAUTOINCR(this)) 1045 if (!NAND_CANAUTOINCR(this))
1046 this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page); 1046 this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
1047 } 1047 }
1048 /* 1048 /*
1049 * Terminate the read command. We come here in case of an error 1049 * Terminate the read command. We come here in case of an error
1050 * So we must issue a reset command. 1050 * So we must issue a reset command.
1051 */ 1051 */
1052out: 1052out:
1053 this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1); 1053 this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1);
1054 return res; 1054 return res;
1055} 1055}
@@ -1111,7 +1111,7 @@ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1111 * NAND read with ECC 1111 * NAND read with ECC
1112 */ 1112 */
1113int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, 1113int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1114 size_t * retlen, u_char * buf, u_char * oob_buf, 1114 size_t * retlen, u_char * buf, u_char * oob_buf,
1115 struct nand_oobinfo *oobsel, int flags) 1115 struct nand_oobinfo *oobsel, int flags)
1116{ 1116{
1117 1117
@@ -1145,7 +1145,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1145 /* Autoplace of oob data ? Use the default placement scheme */ 1145 /* Autoplace of oob data ? Use the default placement scheme */
1146 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) 1146 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
1147 oobsel = this->autooob; 1147 oobsel = this->autooob;
1148 1148
1149 eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE; 1149 eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
1150 oob_config = oobsel->eccpos; 1150 oob_config = oobsel->eccpos;
1151 1151
@@ -1163,28 +1163,28 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1163 end = mtd->oobblock; 1163 end = mtd->oobblock;
1164 ecc = this->eccsize; 1164 ecc = this->eccsize;
1165 eccbytes = this->eccbytes; 1165 eccbytes = this->eccbytes;
1166 1166
1167 if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME)) 1167 if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME))
1168 compareecc = 0; 1168 compareecc = 0;
1169 1169
1170 oobreadlen = mtd->oobsize; 1170 oobreadlen = mtd->oobsize;
1171 if (this->options & NAND_HWECC_SYNDROME) 1171 if (this->options & NAND_HWECC_SYNDROME)
1172 oobreadlen -= oobsel->eccbytes; 1172 oobreadlen -= oobsel->eccbytes;
1173 1173
1174 /* Loop until all data read */ 1174 /* Loop until all data read */
1175 while (read < len) { 1175 while (read < len) {
1176 1176
1177 int aligned = (!col && (len - read) >= end); 1177 int aligned = (!col && (len - read) >= end);
1178 /* 1178 /*
1179 * If the read is not page aligned, we have to read into data buffer 1179 * If the read is not page aligned, we have to read into data buffer
1180 * due to ecc, else we read into return buffer direct 1180 * due to ecc, else we read into return buffer direct
1181 */ 1181 */
1182 if (aligned) 1182 if (aligned)
1183 data_poi = &buf[read]; 1183 data_poi = &buf[read];
1184 else 1184 else
1185 data_poi = this->data_buf; 1185 data_poi = this->data_buf;
1186 1186
1187 /* Check, if we have this page in the buffer 1187 /* Check, if we have this page in the buffer
1188 * 1188 *
1189 * FIXME: Make it work when we must provide oob data too, 1189 * FIXME: Make it work when we must provide oob data too,
1190 * check the usage of data_buf oob field 1190 * check the usage of data_buf oob field
@@ -1200,7 +1200,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1200 if (sndcmd) { 1200 if (sndcmd) {
1201 this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page); 1201 this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
1202 sndcmd = 0; 1202 sndcmd = 0;
1203 } 1203 }
1204 1204
1205 /* get oob area, if we have no oob buffer from fs-driver */ 1205 /* get oob area, if we have no oob buffer from fs-driver */
1206 if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE || 1206 if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE ||
@@ -1208,7 +1208,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1208 oob_data = &this->data_buf[end]; 1208 oob_data = &this->data_buf[end];
1209 1209
1210 eccsteps = this->eccsteps; 1210 eccsteps = this->eccsteps;
1211 1211
1212 switch (eccmode) { 1212 switch (eccmode) {
1213 case NAND_ECC_NONE: { /* No ECC, Read in a page */ 1213 case NAND_ECC_NONE: { /* No ECC, Read in a page */
1214 static unsigned long lastwhinge = 0; 1214 static unsigned long lastwhinge = 0;
@@ -1219,12 +1219,12 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1219 this->read_buf(mtd, data_poi, end); 1219 this->read_buf(mtd, data_poi, end);
1220 break; 1220 break;
1221 } 1221 }
1222 1222
1223 case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */ 1223 case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */
1224 this->read_buf(mtd, data_poi, end); 1224 this->read_buf(mtd, data_poi, end);
1225 for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc) 1225 for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc)
1226 this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]); 1226 this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
1227 break; 1227 break;
1228 1228
1229 default: 1229 default:
1230 for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) { 1230 for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) {
@@ -1243,15 +1243,15 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1243 * does the error correction on the fly */ 1243 * does the error correction on the fly */
1244 ecc_status = this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]); 1244 ecc_status = this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]);
1245 if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) { 1245 if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
1246 DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " 1246 DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
1247 "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr); 1247 "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
1248 ecc_failed++; 1248 ecc_failed++;
1249 } 1249 }
1250 } else { 1250 } else {
1251 this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]); 1251 this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
1252 } 1252 }
1253 } 1253 }
1254 break; 1254 break;
1255 } 1255 }
1256 1256
1257 /* read oobdata */ 1257 /* read oobdata */
@@ -1259,8 +1259,8 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1259 1259
1260 /* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */ 1260 /* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */
1261 if (!compareecc) 1261 if (!compareecc)
1262 goto readoob; 1262 goto readoob;
1263 1263
1264 /* Pick the ECC bytes out of the oob data */ 1264 /* Pick the ECC bytes out of the oob data */
1265 for (j = 0; j < oobsel->eccbytes; j++) 1265 for (j = 0; j < oobsel->eccbytes; j++)
1266 ecc_code[j] = oob_data[oob_config[j]]; 1266 ecc_code[j] = oob_data[oob_config[j]];
@@ -1268,24 +1268,24 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1268 /* correct data, if neccecary */ 1268 /* correct data, if neccecary */
1269 for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) { 1269 for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) {
1270 ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]); 1270 ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]);
1271 1271
1272 /* Get next chunk of ecc bytes */ 1272 /* Get next chunk of ecc bytes */
1273 j += eccbytes; 1273 j += eccbytes;
1274 1274
1275 /* Check, if we have a fs supplied oob-buffer, 1275 /* Check, if we have a fs supplied oob-buffer,
1276 * This is the legacy mode. Used by YAFFS1 1276 * This is the legacy mode. Used by YAFFS1
1277 * Should go away some day 1277 * Should go away some day
1278 */ 1278 */
1279 if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) { 1279 if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) {
1280 int *p = (int *)(&oob_data[mtd->oobsize]); 1280 int *p = (int *)(&oob_data[mtd->oobsize]);
1281 p[i] = ecc_status; 1281 p[i] = ecc_status;
1282 } 1282 }
1283 1283
1284 if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) { 1284 if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
1285 DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page); 1285 DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
1286 ecc_failed++; 1286 ecc_failed++;
1287 } 1287 }
1288 } 1288 }
1289 1289
1290 readoob: 1290 readoob:
1291 /* check, if we have a fs supplied oob-buffer */ 1291 /* check, if we have a fs supplied oob-buffer */
@@ -1311,25 +1311,25 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1311 } 1311 }
1312 readdata: 1312 readdata:
1313 /* Partial page read, transfer data into fs buffer */ 1313 /* Partial page read, transfer data into fs buffer */
1314 if (!aligned) { 1314 if (!aligned) {
1315 for (j = col; j < end && read < len; j++) 1315 for (j = col; j < end && read < len; j++)
1316 buf[read++] = data_poi[j]; 1316 buf[read++] = data_poi[j];
1317 this->pagebuf = realpage; 1317 this->pagebuf = realpage;
1318 } else 1318 } else
1319 read += mtd->oobblock; 1319 read += mtd->oobblock;
1320 1320
1321 /* Apply delay or wait for ready/busy pin 1321 /* Apply delay or wait for ready/busy pin
1322 * Do this before the AUTOINCR check, so no problems 1322 * Do this before the AUTOINCR check, so no problems
1323 * arise if a chip which does auto increment 1323 * arise if a chip which does auto increment
1324 * is marked as NOAUTOINCR by the board driver. 1324 * is marked as NOAUTOINCR by the board driver.
1325 */ 1325 */
1326 if (!this->dev_ready) 1326 if (!this->dev_ready)
1327 udelay (this->chip_delay); 1327 udelay (this->chip_delay);
1328 else 1328 else
1329 nand_wait_ready(mtd); 1329 nand_wait_ready(mtd);
1330 1330
1331 if (read == len) 1331 if (read == len)
1332 break; 1332 break;
1333 1333
1334 /* For subsequent reads align to page boundary. */ 1334 /* For subsequent reads align to page boundary. */
1335 col = 0; 1335 col = 0;
@@ -1343,11 +1343,11 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
1343 this->select_chip(mtd, -1); 1343 this->select_chip(mtd, -1);
1344 this->select_chip(mtd, chipnr); 1344 this->select_chip(mtd, chipnr);
1345 } 1345 }
1346 /* Check, if the chip supports auto page increment 1346 /* Check, if the chip supports auto page increment
1347 * or if we have hit a block boundary. 1347 * or if we have hit a block boundary.
1348 */ 1348 */
1349 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) 1349 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
1350 sndcmd = 1; 1350 sndcmd = 1;
1351 } 1351 }
1352 1352
1353 /* Deselect and wake up anyone waiting on the device */ 1353 /* Deselect and wake up anyone waiting on the device */
@@ -1384,7 +1384,7 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
1384 /* Shift to get page */ 1384 /* Shift to get page */
1385 page = (int)(from >> this->page_shift); 1385 page = (int)(from >> this->page_shift);
1386 chipnr = (int)(from >> this->chip_shift); 1386 chipnr = (int)(from >> this->chip_shift);
1387 1387
1388 /* Mask to get column */ 1388 /* Mask to get column */
1389 col = from & (mtd->oobsize - 1); 1389 col = from & (mtd->oobsize - 1);
1390 1390
@@ -1406,7 +1406,7 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
1406 1406
1407 /* Send the read command */ 1407 /* Send the read command */
1408 this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask); 1408 this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask);
1409 /* 1409 /*
1410 * Read the data, if we read more than one page 1410 * Read the data, if we read more than one page
1411 * oob data, let the device transfer the data ! 1411 * oob data, let the device transfer the data !
1412 */ 1412 */
@@ -1428,20 +1428,20 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
1428 this->select_chip(mtd, -1); 1428 this->select_chip(mtd, -1);
1429 this->select_chip(mtd, chipnr); 1429 this->select_chip(mtd, chipnr);
1430 } 1430 }
1431 1431
1432 /* Apply delay or wait for ready/busy pin 1432 /* Apply delay or wait for ready/busy pin
1433 * Do this before the AUTOINCR check, so no problems 1433 * Do this before the AUTOINCR check, so no problems
1434 * arise if a chip which does auto increment 1434 * arise if a chip which does auto increment
1435 * is marked as NOAUTOINCR by the board driver. 1435 * is marked as NOAUTOINCR by the board driver.
1436 */ 1436 */
1437 if (!this->dev_ready) 1437 if (!this->dev_ready)
1438 udelay (this->chip_delay); 1438 udelay (this->chip_delay);
1439 else 1439 else
1440 nand_wait_ready(mtd); 1440 nand_wait_ready(mtd);
1441 1441
1442 /* Check, if the chip supports auto page increment 1442 /* Check, if the chip supports auto page increment
1443 * or if we have hit a block boundary. 1443 * or if we have hit a block boundary.
1444 */ 1444 */
1445 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) { 1445 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) {
1446 /* For subsequent page reads set offset to 0 */ 1446 /* For subsequent page reads set offset to 0 */
1447 this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask); 1447 this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
@@ -1487,27 +1487,27 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len,
1487 nand_get_device (this, mtd , FL_READING); 1487 nand_get_device (this, mtd , FL_READING);
1488 1488
1489 this->select_chip (mtd, chip); 1489 this->select_chip (mtd, chip);
1490 1490
1491 /* Add requested oob length */ 1491 /* Add requested oob length */
1492 len += ooblen; 1492 len += ooblen;
1493 1493
1494 while (len) { 1494 while (len) {
1495 if (sndcmd) 1495 if (sndcmd)
1496 this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask); 1496 this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
1497 sndcmd = 0; 1497 sndcmd = 0;
1498 1498
1499 this->read_buf (mtd, &buf[cnt], pagesize); 1499 this->read_buf (mtd, &buf[cnt], pagesize);
1500 1500
1501 len -= pagesize; 1501 len -= pagesize;
1502 cnt += pagesize; 1502 cnt += pagesize;
1503 page++; 1503 page++;
1504 1504
1505 if (!this->dev_ready) 1505 if (!this->dev_ready)
1506 udelay (this->chip_delay); 1506 udelay (this->chip_delay);
1507 else 1507 else
1508 nand_wait_ready(mtd); 1508 nand_wait_ready(mtd);
1509 1509
1510 /* Check, if the chip supports auto page increment */ 1510 /* Check, if the chip supports auto page increment */
1511 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) 1511 if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
1512 sndcmd = 1; 1512 sndcmd = 1;
1513 } 1513 }
@@ -1518,8 +1518,8 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len,
1518} 1518}
1519 1519
1520 1520
1521/** 1521/**
1522 * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer 1522 * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
1523 * @mtd: MTD device structure 1523 * @mtd: MTD device structure
1524 * @fsbuf: buffer given by fs driver 1524 * @fsbuf: buffer given by fs driver
1525 * @oobsel: out of band selection structre 1525 * @oobsel: out of band selection structre
@@ -1548,20 +1548,20 @@ static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct
1548 int i, len, ofs; 1548 int i, len, ofs;
1549 1549
1550 /* Zero copy fs supplied buffer */ 1550 /* Zero copy fs supplied buffer */
1551 if (fsbuf && !autoplace) 1551 if (fsbuf && !autoplace)
1552 return fsbuf; 1552 return fsbuf;
1553 1553
1554 /* Check, if the buffer must be filled with ff again */ 1554 /* Check, if the buffer must be filled with ff again */
1555 if (this->oobdirty) { 1555 if (this->oobdirty) {
1556 memset (this->oob_buf, 0xff, 1556 memset (this->oob_buf, 0xff,
1557 mtd->oobsize << (this->phys_erase_shift - this->page_shift)); 1557 mtd->oobsize << (this->phys_erase_shift - this->page_shift));
1558 this->oobdirty = 0; 1558 this->oobdirty = 0;
1559 } 1559 }
1560 1560
1561 /* If we have no autoplacement or no fs buffer use the internal one */ 1561 /* If we have no autoplacement or no fs buffer use the internal one */
1562 if (!autoplace || !fsbuf) 1562 if (!autoplace || !fsbuf)
1563 return this->oob_buf; 1563 return this->oob_buf;
1564 1564
1565 /* Walk through the pages and place the data */ 1565 /* Walk through the pages and place the data */
1566 this->oobdirty = 1; 1566 this->oobdirty = 1;
1567 ofs = 0; 1567 ofs = 0;
@@ -1595,7 +1595,7 @@ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * ret
1595{ 1595{
1596 return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL)); 1596 return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
1597} 1597}
1598 1598
1599/** 1599/**
1600 * nand_write_ecc - [MTD Interface] NAND write with ECC 1600 * nand_write_ecc - [MTD Interface] NAND write with ECC
1601 * @mtd: MTD device structure 1601 * @mtd: MTD device structure
@@ -1628,7 +1628,7 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1628 return -EINVAL; 1628 return -EINVAL;
1629 } 1629 }
1630 1630
1631 /* reject writes, which are not page aligned */ 1631 /* reject writes, which are not page aligned */
1632 if (NOTALIGNED (to) || NOTALIGNED(len)) { 1632 if (NOTALIGNED (to) || NOTALIGNED(len)) {
1633 printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n"); 1633 printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
1634 return -EINVAL; 1634 return -EINVAL;
@@ -1647,14 +1647,14 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1647 goto out; 1647 goto out;
1648 1648
1649 /* if oobsel is NULL, use chip defaults */ 1649 /* if oobsel is NULL, use chip defaults */
1650 if (oobsel == NULL) 1650 if (oobsel == NULL)
1651 oobsel = &mtd->oobinfo; 1651 oobsel = &mtd->oobinfo;
1652 1652
1653 /* Autoplace of oob data ? Use the default placement scheme */ 1653 /* Autoplace of oob data ? Use the default placement scheme */
1654 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) { 1654 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
1655 oobsel = this->autooob; 1655 oobsel = this->autooob;
1656 autoplace = 1; 1656 autoplace = 1;
1657 } 1657 }
1658 if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR) 1658 if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
1659 autoplace = 1; 1659 autoplace = 1;
1660 1660
@@ -1662,9 +1662,9 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1662 totalpages = len >> this->page_shift; 1662 totalpages = len >> this->page_shift;
1663 page = (int) (to >> this->page_shift); 1663 page = (int) (to >> this->page_shift);
1664 /* Invalidate the page cache, if we write to the cached page */ 1664 /* Invalidate the page cache, if we write to the cached page */
1665 if (page <= this->pagebuf && this->pagebuf < (page + totalpages)) 1665 if (page <= this->pagebuf && this->pagebuf < (page + totalpages))
1666 this->pagebuf = -1; 1666 this->pagebuf = -1;
1667 1667
1668 /* Set it relative to chip */ 1668 /* Set it relative to chip */
1669 page &= this->pagemask; 1669 page &= this->pagemask;
1670 startpage = page; 1670 startpage = page;
@@ -1686,14 +1686,14 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1686 if (ret) { 1686 if (ret) {
1687 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret); 1687 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret);
1688 goto out; 1688 goto out;
1689 } 1689 }
1690 /* Next oob page */ 1690 /* Next oob page */
1691 oob += mtd->oobsize; 1691 oob += mtd->oobsize;
1692 /* Update written bytes count */ 1692 /* Update written bytes count */
1693 written += mtd->oobblock; 1693 written += mtd->oobblock;
1694 if (written == len) 1694 if (written == len)
1695 goto cmp; 1695 goto cmp;
1696 1696
1697 /* Increment page address */ 1697 /* Increment page address */
1698 page++; 1698 page++;
1699 1699
@@ -1704,13 +1704,13 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1704 if (!(page & (ppblock - 1))){ 1704 if (!(page & (ppblock - 1))){
1705 int ofs; 1705 int ofs;
1706 this->data_poi = bufstart; 1706 this->data_poi = bufstart;
1707 ret = nand_verify_pages (mtd, this, startpage, 1707 ret = nand_verify_pages (mtd, this, startpage,
1708 page - startpage, 1708 page - startpage,
1709 oobbuf, oobsel, chipnr, (eccbuf != NULL)); 1709 oobbuf, oobsel, chipnr, (eccbuf != NULL));
1710 if (ret) { 1710 if (ret) {
1711 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret); 1711 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
1712 goto out; 1712 goto out;
1713 } 1713 }
1714 *retlen = written; 1714 *retlen = written;
1715 1715
1716 ofs = autoplace ? mtd->oobavail : mtd->oobsize; 1716 ofs = autoplace ? mtd->oobavail : mtd->oobsize;
@@ -1720,7 +1720,7 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
1720 numpages = min (totalpages, ppblock); 1720 numpages = min (totalpages, ppblock);
1721 page &= this->pagemask; 1721 page &= this->pagemask;
1722 startpage = page; 1722 startpage = page;
1723 oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, 1723 oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel,
1724 autoplace, numpages); 1724 autoplace, numpages);
1725 oob = 0; 1725 oob = 0;
1726 /* Check, if we cross a chip boundary */ 1726 /* Check, if we cross a chip boundary */
@@ -1738,7 +1738,7 @@ cmp:
1738 oobbuf, oobsel, chipnr, (eccbuf != NULL)); 1738 oobbuf, oobsel, chipnr, (eccbuf != NULL));
1739 if (!ret) 1739 if (!ret)
1740 *retlen = written; 1740 *retlen = written;
1741 else 1741 else
1742 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret); 1742 DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
1743 1743
1744out: 1744out:
@@ -1798,7 +1798,7 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t *
1798 /* Check, if it is write protected */ 1798 /* Check, if it is write protected */
1799 if (nand_check_wp(mtd)) 1799 if (nand_check_wp(mtd))
1800 goto out; 1800 goto out;
1801 1801
1802 /* Invalidate the page cache, if we write to the cached page */ 1802 /* Invalidate the page cache, if we write to the cached page */
1803 if (page == this->pagebuf) 1803 if (page == this->pagebuf)
1804 this->pagebuf = -1; 1804 this->pagebuf = -1;
@@ -1861,10 +1861,10 @@ out:
1861 * 1861 *
1862 * NAND write with kvec. This just calls the ecc function 1862 * NAND write with kvec. This just calls the ecc function
1863 */ 1863 */
1864static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, 1864static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
1865 loff_t to, size_t * retlen) 1865 loff_t to, size_t * retlen)
1866{ 1866{
1867 return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL)); 1867 return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
1868} 1868}
1869 1869
1870/** 1870/**
@@ -1879,7 +1879,7 @@ static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned
1879 * 1879 *
1880 * NAND write with iovec with ecc 1880 * NAND write with iovec with ecc
1881 */ 1881 */
1882static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, 1882static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
1883 loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel) 1883 loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
1884{ 1884{
1885 int i, page, len, total_len, ret = -EIO, written = 0, chipnr; 1885 int i, page, len, total_len, ret = -EIO, written = 0, chipnr;
@@ -1905,7 +1905,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
1905 return -EINVAL; 1905 return -EINVAL;
1906 } 1906 }
1907 1907
1908 /* reject writes, which are not page aligned */ 1908 /* reject writes, which are not page aligned */
1909 if (NOTALIGNED (to) || NOTALIGNED(total_len)) { 1909 if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
1910 printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n"); 1910 printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
1911 return -EINVAL; 1911 return -EINVAL;
@@ -1924,21 +1924,21 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
1924 goto out; 1924 goto out;
1925 1925
1926 /* if oobsel is NULL, use chip defaults */ 1926 /* if oobsel is NULL, use chip defaults */
1927 if (oobsel == NULL) 1927 if (oobsel == NULL)
1928 oobsel = &mtd->oobinfo; 1928 oobsel = &mtd->oobinfo;
1929 1929
1930 /* Autoplace of oob data ? Use the default placement scheme */ 1930 /* Autoplace of oob data ? Use the default placement scheme */
1931 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) { 1931 if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
1932 oobsel = this->autooob; 1932 oobsel = this->autooob;
1933 autoplace = 1; 1933 autoplace = 1;
1934 } 1934 }
1935 if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR) 1935 if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
1936 autoplace = 1; 1936 autoplace = 1;
1937 1937
1938 /* Setup start page */ 1938 /* Setup start page */
1939 page = (int) (to >> this->page_shift); 1939 page = (int) (to >> this->page_shift);
1940 /* Invalidate the page cache, if we write to the cached page */ 1940 /* Invalidate the page cache, if we write to the cached page */
1941 if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift)) 1941 if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift))
1942 this->pagebuf = -1; 1942 this->pagebuf = -1;
1943 1943
1944 startpage = page & this->pagemask; 1944 startpage = page & this->pagemask;
@@ -1962,10 +1962,10 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
1962 oob = 0; 1962 oob = 0;
1963 for (i = 1; i <= numpages; i++) { 1963 for (i = 1; i <= numpages; i++) {
1964 /* Write one page. If this is the last page to write 1964 /* Write one page. If this is the last page to write
1965 * then use the real pageprogram command, else select 1965 * then use the real pageprogram command, else select
1966 * cached programming if supported by the chip. 1966 * cached programming if supported by the chip.
1967 */ 1967 */
1968 ret = nand_write_page (mtd, this, page & this->pagemask, 1968 ret = nand_write_page (mtd, this, page & this->pagemask,
1969 &oobbuf[oob], oobsel, i != numpages); 1969 &oobbuf[oob], oobsel, i != numpages);
1970 if (ret) 1970 if (ret)
1971 goto out; 1971 goto out;
@@ -1981,12 +1981,12 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
1981 count--; 1981 count--;
1982 } 1982 }
1983 } else { 1983 } else {
1984 /* We must use the internal buffer, read data out of each 1984 /* We must use the internal buffer, read data out of each
1985 * tuple until we have a full page to write 1985 * tuple until we have a full page to write
1986 */ 1986 */
1987 int cnt = 0; 1987 int cnt = 0;
1988 while (cnt < mtd->oobblock) { 1988 while (cnt < mtd->oobblock) {
1989 if (vecs->iov_base != NULL && vecs->iov_len) 1989 if (vecs->iov_base != NULL && vecs->iov_len)
1990 this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++]; 1990 this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
1991 /* Check, if we have to switch to the next tuple */ 1991 /* Check, if we have to switch to the next tuple */
1992 if (len >= (int) vecs->iov_len) { 1992 if (len >= (int) vecs->iov_len) {
@@ -1995,10 +1995,10 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
1995 count--; 1995 count--;
1996 } 1996 }
1997 } 1997 }
1998 this->pagebuf = page; 1998 this->pagebuf = page;
1999 this->data_poi = this->data_buf; 1999 this->data_poi = this->data_buf;
2000 bufstart = this->data_poi; 2000 bufstart = this->data_poi;
2001 numpages = 1; 2001 numpages = 1;
2002 oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages); 2002 oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
2003 ret = nand_write_page (mtd, this, page & this->pagemask, 2003 ret = nand_write_page (mtd, this, page & this->pagemask,
2004 oobbuf, oobsel, 0); 2004 oobbuf, oobsel, 0);
@@ -2011,7 +2011,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
2011 ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0); 2011 ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
2012 if (ret) 2012 if (ret)
2013 goto out; 2013 goto out;
2014 2014
2015 written += mtd->oobblock * numpages; 2015 written += mtd->oobblock * numpages;
2016 /* All done ? */ 2016 /* All done ? */
2017 if (!count) 2017 if (!count)
@@ -2079,7 +2079,7 @@ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
2079{ 2079{
2080 return nand_erase_nand (mtd, instr, 0); 2080 return nand_erase_nand (mtd, instr, 0);
2081} 2081}
2082 2082
2083#define BBT_PAGE_MASK 0xffffff3f 2083#define BBT_PAGE_MASK 0xffffff3f
2084/** 2084/**
2085 * nand_erase_intern - [NAND Interface] erase block(s) 2085 * nand_erase_intern - [NAND Interface] erase block(s)
@@ -2161,14 +2161,14 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
2161 instr->state = MTD_ERASE_FAILED; 2161 instr->state = MTD_ERASE_FAILED;
2162 goto erase_exit; 2162 goto erase_exit;
2163 } 2163 }
2164 2164
2165 /* Invalidate the page cache, if we erase the block which contains 2165 /* Invalidate the page cache, if we erase the block which contains
2166 the current cached page */ 2166 the current cached page */
2167 if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block)) 2167 if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block))
2168 this->pagebuf = -1; 2168 this->pagebuf = -1;
2169 2169
2170 this->erase_cmd (mtd, page & this->pagemask); 2170 this->erase_cmd (mtd, page & this->pagemask);
2171 2171
2172 status = this->waitfunc (mtd, this, FL_ERASING); 2172 status = this->waitfunc (mtd, this, FL_ERASING);
2173 2173
2174 /* See if operation failed and additional status checks are available */ 2174 /* See if operation failed and additional status checks are available */
@@ -2186,12 +2186,12 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
2186 2186
2187 /* if BBT requires refresh, set the BBT rewrite flag to the page being erased */ 2187 /* if BBT requires refresh, set the BBT rewrite flag to the page being erased */
2188 if (this->options & BBT_AUTO_REFRESH) { 2188 if (this->options & BBT_AUTO_REFRESH) {
2189 if (((page & BBT_PAGE_MASK) == bbt_masked_page) && 2189 if (((page & BBT_PAGE_MASK) == bbt_masked_page) &&
2190 (page != this->bbt_td->pages[chipnr])) { 2190 (page != this->bbt_td->pages[chipnr])) {
2191 rewrite_bbt[chipnr] = (page << this->page_shift); 2191 rewrite_bbt[chipnr] = (page << this->page_shift);
2192 } 2192 }
2193 } 2193 }
2194 2194
2195 /* Increment page address and decrement length */ 2195 /* Increment page address and decrement length */
2196 len -= (1 << this->phys_erase_shift); 2196 len -= (1 << this->phys_erase_shift);
2197 page += pages_per_block; 2197 page += pages_per_block;
@@ -2202,7 +2202,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
2202 this->select_chip(mtd, -1); 2202 this->select_chip(mtd, -1);
2203 this->select_chip(mtd, chipnr); 2203 this->select_chip(mtd, chipnr);
2204 2204
2205 /* if BBT requires refresh and BBT-PERCHIP, 2205 /* if BBT requires refresh and BBT-PERCHIP,
2206 * set the BBT page mask to see if this BBT should be rewritten */ 2206 * set the BBT page mask to see if this BBT should be rewritten */
2207 if ((this->options & BBT_AUTO_REFRESH) && (this->bbt_td->options & NAND_BBT_PERCHIP)) { 2207 if ((this->options & BBT_AUTO_REFRESH) && (this->bbt_td->options & NAND_BBT_PERCHIP)) {
2208 bbt_masked_page = this->bbt_td->pages[chipnr] & BBT_PAGE_MASK; 2208 bbt_masked_page = this->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
@@ -2227,7 +2227,7 @@ erase_exit:
2227 for (chipnr = 0; chipnr < this->numchips; chipnr++) { 2227 for (chipnr = 0; chipnr < this->numchips; chipnr++) {
2228 if (rewrite_bbt[chipnr]) { 2228 if (rewrite_bbt[chipnr]) {
2229 /* update the BBT for chip */ 2229 /* update the BBT for chip */
2230 DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n", 2230 DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n",
2231 chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]); 2231 chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]);
2232 nand_update_bbt (mtd, rewrite_bbt[chipnr]); 2232 nand_update_bbt (mtd, rewrite_bbt[chipnr]);
2233 } 2233 }
@@ -2265,9 +2265,9 @@ static void nand_sync (struct mtd_info *mtd)
2265static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs) 2265static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
2266{ 2266{
2267 /* Check for invalid offset */ 2267 /* Check for invalid offset */
2268 if (ofs > mtd->size) 2268 if (ofs > mtd->size)
2269 return -EINVAL; 2269 return -EINVAL;
2270 2270
2271 return nand_block_checkbad (mtd, ofs, 1, 0); 2271 return nand_block_checkbad (mtd, ofs, 1, 0);
2272} 2272}
2273 2273
@@ -2386,13 +2386,13 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2386 2386
2387 /* Print and store flash device information */ 2387 /* Print and store flash device information */
2388 for (i = 0; nand_flash_ids[i].name != NULL; i++) { 2388 for (i = 0; nand_flash_ids[i].name != NULL; i++) {
2389 2389
2390 if (nand_dev_id != nand_flash_ids[i].id) 2390 if (nand_dev_id != nand_flash_ids[i].id)
2391 continue; 2391 continue;
2392 2392
2393 if (!mtd->name) mtd->name = nand_flash_ids[i].name; 2393 if (!mtd->name) mtd->name = nand_flash_ids[i].name;
2394 this->chipsize = nand_flash_ids[i].chipsize << 20; 2394 this->chipsize = nand_flash_ids[i].chipsize << 20;
2395 2395
2396 /* New devices have all the information in additional id bytes */ 2396 /* New devices have all the information in additional id bytes */
2397 if (!nand_flash_ids[i].pagesize) { 2397 if (!nand_flash_ids[i].pagesize) {
2398 int extid; 2398 int extid;
@@ -2411,7 +2411,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2411 extid >>= 2; 2411 extid >>= 2;
2412 /* Get buswidth information */ 2412 /* Get buswidth information */
2413 busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0; 2413 busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
2414 2414
2415 } else { 2415 } else {
2416 /* Old devices have this data hardcoded in the 2416 /* Old devices have this data hardcoded in the
2417 * device id table */ 2417 * device id table */
@@ -2431,23 +2431,23 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2431 * this correct ! */ 2431 * this correct ! */
2432 if (busw != (this->options & NAND_BUSWIDTH_16)) { 2432 if (busw != (this->options & NAND_BUSWIDTH_16)) {
2433 printk (KERN_INFO "NAND device: Manufacturer ID:" 2433 printk (KERN_INFO "NAND device: Manufacturer ID:"
2434 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, 2434 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
2435 nand_manuf_ids[maf_id].name , mtd->name); 2435 nand_manuf_ids[maf_id].name , mtd->name);
2436 printk (KERN_WARNING 2436 printk (KERN_WARNING
2437 "NAND bus width %d instead %d bit\n", 2437 "NAND bus width %d instead %d bit\n",
2438 (this->options & NAND_BUSWIDTH_16) ? 16 : 8, 2438 (this->options & NAND_BUSWIDTH_16) ? 16 : 8,
2439 busw ? 16 : 8); 2439 busw ? 16 : 8);
2440 this->select_chip(mtd, -1); 2440 this->select_chip(mtd, -1);
2441 return 1; 2441 return 1;
2442 } 2442 }
2443 2443
2444 /* Calculate the address shift from the page size */ 2444 /* Calculate the address shift from the page size */
2445 this->page_shift = ffs(mtd->oobblock) - 1; 2445 this->page_shift = ffs(mtd->oobblock) - 1;
2446 this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1; 2446 this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1;
2447 this->chip_shift = ffs(this->chipsize) - 1; 2447 this->chip_shift = ffs(this->chipsize) - 1;
2448 2448
2449 /* Set the bad block position */ 2449 /* Set the bad block position */
2450 this->badblockpos = mtd->oobblock > 512 ? 2450 this->badblockpos = mtd->oobblock > 512 ?
2451 NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS; 2451 NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
2452 2452
2453 /* Get chip options, preserve non chip based options */ 2453 /* Get chip options, preserve non chip based options */
@@ -2457,10 +2457,10 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2457 this->options |= NAND_NO_AUTOINCR; 2457 this->options |= NAND_NO_AUTOINCR;
2458 /* Check if this is a not a samsung device. Do not clear the options 2458 /* Check if this is a not a samsung device. Do not clear the options
2459 * for chips which are not having an extended id. 2459 * for chips which are not having an extended id.
2460 */ 2460 */
2461 if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize) 2461 if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize)
2462 this->options &= ~NAND_SAMSUNG_LP_OPTIONS; 2462 this->options &= ~NAND_SAMSUNG_LP_OPTIONS;
2463 2463
2464 /* Check for AND chips with 4 page planes */ 2464 /* Check for AND chips with 4 page planes */
2465 if (this->options & NAND_4PAGE_ARRAY) 2465 if (this->options & NAND_4PAGE_ARRAY)
2466 this->erase_cmd = multi_erase_cmd; 2466 this->erase_cmd = multi_erase_cmd;
@@ -2470,9 +2470,9 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2470 /* Do not replace user supplied command function ! */ 2470 /* Do not replace user supplied command function ! */
2471 if (mtd->oobblock > 512 && this->cmdfunc == nand_command) 2471 if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
2472 this->cmdfunc = nand_command_lp; 2472 this->cmdfunc = nand_command_lp;
2473 2473
2474 printk (KERN_INFO "NAND device: Manufacturer ID:" 2474 printk (KERN_INFO "NAND device: Manufacturer ID:"
2475 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id, 2475 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
2476 nand_manuf_ids[maf_id].name , nand_flash_ids[i].name); 2476 nand_manuf_ids[maf_id].name , nand_flash_ids[i].name);
2477 break; 2477 break;
2478 } 2478 }
@@ -2496,7 +2496,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2496 } 2496 }
2497 if (i > 1) 2497 if (i > 1)
2498 printk(KERN_INFO "%d NAND chips detected\n", i); 2498 printk(KERN_INFO "%d NAND chips detected\n", i);
2499 2499
2500 /* Allocate buffers, if neccecary */ 2500 /* Allocate buffers, if neccecary */
2501 if (!this->oob_buf) { 2501 if (!this->oob_buf) {
2502 size_t len; 2502 size_t len;
@@ -2508,7 +2508,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2508 } 2508 }
2509 this->options |= NAND_OOBBUF_ALLOC; 2509 this->options |= NAND_OOBBUF_ALLOC;
2510 } 2510 }
2511 2511
2512 if (!this->data_buf) { 2512 if (!this->data_buf) {
2513 size_t len; 2513 size_t len;
2514 len = mtd->oobblock + mtd->oobsize; 2514 len = mtd->oobblock + mtd->oobsize;
@@ -2535,7 +2535,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2535 if (!this->autooob) { 2535 if (!this->autooob) {
2536 /* Select the appropriate default oob placement scheme for 2536 /* Select the appropriate default oob placement scheme for
2537 * placement agnostic filesystems */ 2537 * placement agnostic filesystems */
2538 switch (mtd->oobsize) { 2538 switch (mtd->oobsize) {
2539 case 8: 2539 case 8:
2540 this->autooob = &nand_oob_8; 2540 this->autooob = &nand_oob_8;
2541 break; 2541 break;
@@ -2551,19 +2551,19 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2551 BUG(); 2551 BUG();
2552 } 2552 }
2553 } 2553 }
2554 2554
2555 /* The number of bytes available for the filesystem to place fs dependend 2555 /* The number of bytes available for the filesystem to place fs dependend
2556 * oob data */ 2556 * oob data */
2557 mtd->oobavail = 0; 2557 mtd->oobavail = 0;
2558 for (i = 0; this->autooob->oobfree[i][1]; i++) 2558 for (i = 0; this->autooob->oobfree[i][1]; i++)
2559 mtd->oobavail += this->autooob->oobfree[i][1]; 2559 mtd->oobavail += this->autooob->oobfree[i][1];
2560 2560
2561 /* 2561 /*
2562 * check ECC mode, default to software 2562 * check ECC mode, default to software
2563 * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize 2563 * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
2564 * fallback to software ECC 2564 * fallback to software ECC
2565 */ 2565 */
2566 this->eccsize = 256; /* set default eccsize */ 2566 this->eccsize = 256; /* set default eccsize */
2567 this->eccbytes = 3; 2567 this->eccbytes = 3;
2568 2568
2569 switch (this->eccmode) { 2569 switch (this->eccmode) {
@@ -2578,56 +2578,56 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2578 this->eccsize = 2048; 2578 this->eccsize = 2048;
2579 break; 2579 break;
2580 2580
2581 case NAND_ECC_HW3_512: 2581 case NAND_ECC_HW3_512:
2582 case NAND_ECC_HW6_512: 2582 case NAND_ECC_HW6_512:
2583 case NAND_ECC_HW8_512: 2583 case NAND_ECC_HW8_512:
2584 if (mtd->oobblock == 256) { 2584 if (mtd->oobblock == 256) {
2585 printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n"); 2585 printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
2586 this->eccmode = NAND_ECC_SOFT; 2586 this->eccmode = NAND_ECC_SOFT;
2587 this->calculate_ecc = nand_calculate_ecc; 2587 this->calculate_ecc = nand_calculate_ecc;
2588 this->correct_data = nand_correct_data; 2588 this->correct_data = nand_correct_data;
2589 } else 2589 } else
2590 this->eccsize = 512; /* set eccsize to 512 */ 2590 this->eccsize = 512; /* set eccsize to 512 */
2591 break; 2591 break;
2592 2592
2593 case NAND_ECC_HW3_256: 2593 case NAND_ECC_HW3_256:
2594 break; 2594 break;
2595 2595
2596 case NAND_ECC_NONE: 2596 case NAND_ECC_NONE:
2597 printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n"); 2597 printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
2598 this->eccmode = NAND_ECC_NONE; 2598 this->eccmode = NAND_ECC_NONE;
2599 break; 2599 break;
2600 2600
2601 case NAND_ECC_SOFT: 2601 case NAND_ECC_SOFT:
2602 this->calculate_ecc = nand_calculate_ecc; 2602 this->calculate_ecc = nand_calculate_ecc;
2603 this->correct_data = nand_correct_data; 2603 this->correct_data = nand_correct_data;
2604 break; 2604 break;
2605 2605
2606 default: 2606 default:
2607 printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode); 2607 printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
2608 BUG(); 2608 BUG();
2609 } 2609 }
2610 2610
2611 /* Check hardware ecc function availability and adjust number of ecc bytes per 2611 /* Check hardware ecc function availability and adjust number of ecc bytes per
2612 * calculation step 2612 * calculation step
2613 */ 2613 */
2614 switch (this->eccmode) { 2614 switch (this->eccmode) {
2615 case NAND_ECC_HW12_2048: 2615 case NAND_ECC_HW12_2048:
2616 this->eccbytes += 4; 2616 this->eccbytes += 4;
2617 case NAND_ECC_HW8_512: 2617 case NAND_ECC_HW8_512:
2618 this->eccbytes += 2; 2618 this->eccbytes += 2;
2619 case NAND_ECC_HW6_512: 2619 case NAND_ECC_HW6_512:
2620 this->eccbytes += 3; 2620 this->eccbytes += 3;
2621 case NAND_ECC_HW3_512: 2621 case NAND_ECC_HW3_512:
2622 case NAND_ECC_HW3_256: 2622 case NAND_ECC_HW3_256:
2623 if (this->calculate_ecc && this->correct_data && this->enable_hwecc) 2623 if (this->calculate_ecc && this->correct_data && this->enable_hwecc)
2624 break; 2624 break;
2625 printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n"); 2625 printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n");
2626 BUG(); 2626 BUG();
2627 } 2627 }
2628 2628
2629 mtd->eccsize = this->eccsize; 2629 mtd->eccsize = this->eccsize;
2630 2630
2631 /* Set the number of read / write steps for one page to ensure ECC generation */ 2631 /* Set the number of read / write steps for one page to ensure ECC generation */
2632 switch (this->eccmode) { 2632 switch (this->eccmode) {
2633 case NAND_ECC_HW12_2048: 2633 case NAND_ECC_HW12_2048:
@@ -2639,15 +2639,15 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2639 this->eccsteps = mtd->oobblock / 512; 2639 this->eccsteps = mtd->oobblock / 512;
2640 break; 2640 break;
2641 case NAND_ECC_HW3_256: 2641 case NAND_ECC_HW3_256:
2642 case NAND_ECC_SOFT: 2642 case NAND_ECC_SOFT:
2643 this->eccsteps = mtd->oobblock / 256; 2643 this->eccsteps = mtd->oobblock / 256;
2644 break; 2644 break;
2645 2645
2646 case NAND_ECC_NONE: 2646 case NAND_ECC_NONE:
2647 this->eccsteps = 1; 2647 this->eccsteps = 1;
2648 break; 2648 break;
2649 } 2649 }
2650 2650
2651 /* Initialize state, waitqueue and spinlock */ 2651 /* Initialize state, waitqueue and spinlock */
2652 this->state = FL_READY; 2652 this->state = FL_READY;
2653 init_waitqueue_head (&this->wq); 2653 init_waitqueue_head (&this->wq);
@@ -2687,7 +2687,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2687 memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo)); 2687 memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo));
2688 2688
2689 mtd->owner = THIS_MODULE; 2689 mtd->owner = THIS_MODULE;
2690 2690
2691 /* Check, if we should skip the bad block table scan */ 2691 /* Check, if we should skip the bad block table scan */
2692 if (this->options & NAND_SKIP_BBTSCAN) 2692 if (this->options & NAND_SKIP_BBTSCAN)
2693 return 0; 2693 return 0;
@@ -2697,7 +2697,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
2697} 2697}
2698 2698
2699/** 2699/**
2700 * nand_release - [NAND Interface] Free resources held by the NAND device 2700 * nand_release - [NAND Interface] Free resources held by the NAND device
2701 * @mtd: MTD device structure 2701 * @mtd: MTD device structure
2702*/ 2702*/
2703void nand_release (struct mtd_info *mtd) 2703void nand_release (struct mtd_info *mtd)
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 7535ef53685e..ca286999fe08 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -3,10 +3,10 @@
3 * 3 *
4 * Overview: 4 * Overview:
5 * Bad block table support for the NAND driver 5 * Bad block table support for the NAND driver
6 * 6 *
7 * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de) 7 * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
8 * 8 *
9 * $Id: nand_bbt.c,v 1.35 2005/07/15 13:53:47 gleixner Exp $ 9 * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as 12 * it under the terms of the GNU General Public License version 2 as
@@ -14,23 +14,23 @@
14 * 14 *
15 * Description: 15 * Description:
16 * 16 *
17 * When nand_scan_bbt is called, then it tries to find the bad block table 17 * When nand_scan_bbt is called, then it tries to find the bad block table
18 * depending on the options in the bbt descriptor(s). If a bbt is found 18 * depending on the options in the bbt descriptor(s). If a bbt is found
19 * then the contents are read and the memory based bbt is created. If a 19 * then the contents are read and the memory based bbt is created. If a
20 * mirrored bbt is selected then the mirror is searched too and the 20 * mirrored bbt is selected then the mirror is searched too and the
21 * versions are compared. If the mirror has a greater version number 21 * versions are compared. If the mirror has a greater version number
22 * than the mirror bbt is used to build the memory based bbt. 22 * than the mirror bbt is used to build the memory based bbt.
23 * If the tables are not versioned, then we "or" the bad block information. 23 * If the tables are not versioned, then we "or" the bad block information.
24 * If one of the bbt's is out of date or does not exist it is (re)created. 24 * If one of the bbt's is out of date or does not exist it is (re)created.
25 * If no bbt exists at all then the device is scanned for factory marked 25 * If no bbt exists at all then the device is scanned for factory marked
26 * good / bad blocks and the bad block tables are created. 26 * good / bad blocks and the bad block tables are created.
27 * 27 *
28 * For manufacturer created bbts like the one found on M-SYS DOC devices 28 * For manufacturer created bbts like the one found on M-SYS DOC devices
29 * the bbt is searched and read but never created 29 * the bbt is searched and read but never created
30 * 30 *
31 * The autogenerated bad block table is located in the last good blocks 31 * The autogenerated bad block table is located in the last good blocks
32 * of the device. The table is mirrored, so it can be updated eventually. 32 * of the device. The table is mirrored, so it can be updated eventually.
33 * The table is marked in the oob area with an ident pattern and a version 33 * The table is marked in the oob area with an ident pattern and a version
34 * number which indicates which of both tables is more up to date. 34 * number which indicates which of both tables is more up to date.
35 * 35 *
36 * The table uses 2 bits per block 36 * The table uses 2 bits per block
@@ -43,13 +43,13 @@
43 * 01b: block is marked bad due to wear 43 * 01b: block is marked bad due to wear
44 * 10b: block is reserved (to protect the bbt area) 44 * 10b: block is reserved (to protect the bbt area)
45 * 11b: block is factory marked bad 45 * 11b: block is factory marked bad
46 * 46 *
47 * Multichip devices like DOC store the bad block info per floor. 47 * Multichip devices like DOC store the bad block info per floor.
48 * 48 *
49 * Following assumptions are made: 49 * Following assumptions are made:
50 * - bbts start at a page boundary, if autolocated on a block boundary 50 * - bbts start at a page boundary, if autolocated on a block boundary
51 * - the space neccecary for a bbt in FLASH does not exceed a block boundary 51 * - the space neccecary for a bbt in FLASH does not exceed a block boundary
52 * 52 *
53 */ 53 */
54 54
55#include <linux/slab.h> 55#include <linux/slab.h>
@@ -62,7 +62,7 @@
62#include <linux/delay.h> 62#include <linux/delay.h>
63 63
64 64
65/** 65/**
66 * check_pattern - [GENERIC] check if a pattern is in the buffer 66 * check_pattern - [GENERIC] check if a pattern is in the buffer
67 * @buf: the buffer to search 67 * @buf: the buffer to search
68 * @len: the length of buffer to search 68 * @len: the length of buffer to search
@@ -86,9 +86,9 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des
86 if (p[i] != 0xff) 86 if (p[i] != 0xff)
87 return -1; 87 return -1;
88 } 88 }
89 } 89 }
90 p += end; 90 p += end;
91 91
92 /* Compare the pattern */ 92 /* Compare the pattern */
93 for (i = 0; i < td->len; i++) { 93 for (i = 0; i < td->len; i++) {
94 if (p[i] != td->pattern[i]) 94 if (p[i] != td->pattern[i])
@@ -106,13 +106,13 @@ static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_des
106 return 0; 106 return 0;
107} 107}
108 108
109/** 109/**
110 * check_short_pattern - [GENERIC] check if a pattern is in the buffer 110 * check_short_pattern - [GENERIC] check if a pattern is in the buffer
111 * @buf: the buffer to search 111 * @buf: the buffer to search
112 * @td: search pattern descriptor 112 * @td: search pattern descriptor
113 * 113 *
114 * Check for a pattern at the given place. Used to search bad block 114 * Check for a pattern at the given place. Used to search bad block
115 * tables and good / bad block identifiers. Same as check_pattern, but 115 * tables and good / bad block identifiers. Same as check_pattern, but
116 * no optional empty check 116 * no optional empty check
117 * 117 *
118*/ 118*/
@@ -142,7 +142,7 @@ static int check_short_pattern (uint8_t *buf, struct nand_bbt_descr *td)
142 * Read the bad block table starting from page. 142 * Read the bad block table starting from page.
143 * 143 *
144 */ 144 */
145static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num, 145static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
146 int bits, int offs, int reserved_block_code) 146 int bits, int offs, int reserved_block_code)
147{ 147{
148 int res, i, j, act = 0; 148 int res, i, j, act = 0;
@@ -153,7 +153,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
153 153
154 totlen = (num * bits) >> 3; 154 totlen = (num * bits) >> 3;
155 from = ((loff_t)page) << this->page_shift; 155 from = ((loff_t)page) << this->page_shift;
156 156
157 while (totlen) { 157 while (totlen) {
158 len = min (totlen, (size_t) (1 << this->bbt_erase_shift)); 158 len = min (totlen, (size_t) (1 << this->bbt_erase_shift));
159 res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob); 159 res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob);
@@ -163,7 +163,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
163 return res; 163 return res;
164 } 164 }
165 printk (KERN_WARNING "nand_bbt: ECC error while reading bad block table\n"); 165 printk (KERN_WARNING "nand_bbt: ECC error while reading bad block table\n");
166 } 166 }
167 167
168 /* Analyse data */ 168 /* Analyse data */
169 for (i = 0; i < len; i++) { 169 for (i = 0; i < len; i++) {
@@ -183,12 +183,12 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
183 * message to MTD_DEBUG_LEVEL0 */ 183 * message to MTD_DEBUG_LEVEL0 */
184 printk (KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n", 184 printk (KERN_DEBUG "nand_read_bbt: Bad block at 0x%08x\n",
185 ((offs << 2) + (act >> 1)) << this->bbt_erase_shift); 185 ((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
186 /* Factory marked bad or worn out ? */ 186 /* Factory marked bad or worn out ? */
187 if (tmp == 0) 187 if (tmp == 0)
188 this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06); 188 this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
189 else 189 else
190 this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06); 190 this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06);
191 } 191 }
192 } 192 }
193 totlen -= len; 193 totlen -= len;
194 from += len; 194 from += len;
@@ -200,7 +200,7 @@ static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
200 * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page 200 * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
201 * @mtd: MTD device structure 201 * @mtd: MTD device structure
202 * @buf: temporary buffer 202 * @buf: temporary buffer
203 * @td: descriptor for the bad block table 203 * @td: descriptor for the bad block table
204 * @chip: read the table for a specific chip, -1 read all chips. 204 * @chip: read the table for a specific chip, -1 read all chips.
205 * Applies only if NAND_BBT_PERCHIP option is set 205 * Applies only if NAND_BBT_PERCHIP option is set
206 * 206 *
@@ -235,7 +235,7 @@ static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
235 * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page 235 * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
236 * @mtd: MTD device structure 236 * @mtd: MTD device structure
237 * @buf: temporary buffer 237 * @buf: temporary buffer
238 * @td: descriptor for the bad block table 238 * @td: descriptor for the bad block table
239 * @md: descriptor for the bad block table mirror 239 * @md: descriptor for the bad block table mirror
240 * 240 *
241 * Read the bad block table(s) for all chips starting at a given page 241 * Read the bad block table(s) for all chips starting at a given page
@@ -247,16 +247,16 @@ static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_de
247{ 247{
248 struct nand_chip *this = mtd->priv; 248 struct nand_chip *this = mtd->priv;
249 249
250 /* Read the primary version, if available */ 250 /* Read the primary version, if available */
251 if (td->options & NAND_BBT_VERSION) { 251 if (td->options & NAND_BBT_VERSION) {
252 nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); 252 nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
253 td->version[0] = buf[mtd->oobblock + td->veroffs]; 253 td->version[0] = buf[mtd->oobblock + td->veroffs];
254 printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]); 254 printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]);
255 } 255 }
256 256
257 /* Read the mirror version, if available */ 257 /* Read the mirror version, if available */
258 if (md && (md->options & NAND_BBT_VERSION)) { 258 if (md && (md->options & NAND_BBT_VERSION)) {
259 nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize); 259 nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
260 md->version[0] = buf[mtd->oobblock + md->veroffs]; 260 md->version[0] = buf[mtd->oobblock + md->veroffs];
261 printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]); 261 printk (KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]);
262 } 262 }
@@ -290,7 +290,7 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
290 else { 290 else {
291 if (bd->options & NAND_BBT_SCAN2NDPAGE) 291 if (bd->options & NAND_BBT_SCAN2NDPAGE)
292 len = 2; 292 len = 2;
293 else 293 else
294 len = 1; 294 len = 1;
295 } 295 }
296 296
@@ -322,10 +322,10 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
322 numblocks += startblock; 322 numblocks += startblock;
323 from = startblock << (this->bbt_erase_shift - 1); 323 from = startblock << (this->bbt_erase_shift - 1);
324 } 324 }
325 325
326 for (i = startblock; i < numblocks;) { 326 for (i = startblock; i < numblocks;) {
327 int ret; 327 int ret;
328 328
329 if (bd->options & NAND_BBT_SCANEMPTY) 329 if (bd->options & NAND_BBT_SCANEMPTY)
330 if ((ret = nand_read_raw (mtd, buf, from, readlen, ooblen))) 330 if ((ret = nand_read_raw (mtd, buf, from, readlen, ooblen)))
331 return ret; 331 return ret;
@@ -333,8 +333,8 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
333 for (j = 0; j < len; j++) { 333 for (j = 0; j < len; j++) {
334 if (!(bd->options & NAND_BBT_SCANEMPTY)) { 334 if (!(bd->options & NAND_BBT_SCANEMPTY)) {
335 size_t retlen; 335 size_t retlen;
336 336
337 /* Read the full oob until read_oob is fixed to 337 /* Read the full oob until read_oob is fixed to
338 * handle single byte reads for 16 bit buswidth */ 338 * handle single byte reads for 16 bit buswidth */
339 ret = mtd->read_oob(mtd, from + j * mtd->oobblock, 339 ret = mtd->read_oob(mtd, from + j * mtd->oobblock,
340 mtd->oobsize, &retlen, buf); 340 mtd->oobsize, &retlen, buf);
@@ -343,14 +343,14 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
343 343
344 if (check_short_pattern (buf, bd)) { 344 if (check_short_pattern (buf, bd)) {
345 this->bbt[i >> 3] |= 0x03 << (i & 0x6); 345 this->bbt[i >> 3] |= 0x03 << (i & 0x6);
346 printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", 346 printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
347 i >> 1, (unsigned int) from); 347 i >> 1, (unsigned int) from);
348 break; 348 break;
349 } 349 }
350 } else { 350 } else {
351 if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) { 351 if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) {
352 this->bbt[i >> 3] |= 0x03 << (i & 0x6); 352 this->bbt[i >> 3] |= 0x03 << (i & 0x6);
353 printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n", 353 printk (KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
354 i >> 1, (unsigned int) from); 354 i >> 1, (unsigned int) from);
355 break; 355 break;
356 } 356 }
@@ -369,15 +369,15 @@ static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
369 * @td: descriptor for the bad block table 369 * @td: descriptor for the bad block table
370 * 370 *
371 * Read the bad block table by searching for a given ident pattern. 371 * Read the bad block table by searching for a given ident pattern.
372 * Search is preformed either from the beginning up or from the end of 372 * Search is preformed either from the beginning up or from the end of
373 * the device downwards. The search starts always at the start of a 373 * the device downwards. The search starts always at the start of a
374 * block. 374 * block.
375 * If the option NAND_BBT_PERCHIP is given, each chip is searched 375 * If the option NAND_BBT_PERCHIP is given, each chip is searched
376 * for a bbt, which contains the bad block information of this chip. 376 * for a bbt, which contains the bad block information of this chip.
377 * This is neccecary to provide support for certain DOC devices. 377 * This is neccecary to provide support for certain DOC devices.
378 * 378 *
379 * The bbt ident pattern resides in the oob area of the first page 379 * The bbt ident pattern resides in the oob area of the first page
380 * in a block. 380 * in a block.
381 */ 381 */
382static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td) 382static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
383{ 383{
@@ -392,10 +392,10 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
392 startblock = (mtd->size >> this->bbt_erase_shift) -1; 392 startblock = (mtd->size >> this->bbt_erase_shift) -1;
393 dir = -1; 393 dir = -1;
394 } else { 394 } else {
395 startblock = 0; 395 startblock = 0;
396 dir = 1; 396 dir = 1;
397 } 397 }
398 398
399 /* Do we have a bbt per chip ? */ 399 /* Do we have a bbt per chip ? */
400 if (td->options & NAND_BBT_PERCHIP) { 400 if (td->options & NAND_BBT_PERCHIP) {
401 chips = this->numchips; 401 chips = this->numchips;
@@ -405,19 +405,19 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
405 chips = 1; 405 chips = 1;
406 bbtblocks = mtd->size >> this->bbt_erase_shift; 406 bbtblocks = mtd->size >> this->bbt_erase_shift;
407 } 407 }
408 408
409 /* Number of bits for each erase block in the bbt */ 409 /* Number of bits for each erase block in the bbt */
410 bits = td->options & NAND_BBT_NRBITS_MSK; 410 bits = td->options & NAND_BBT_NRBITS_MSK;
411 411
412 for (i = 0; i < chips; i++) { 412 for (i = 0; i < chips; i++) {
413 /* Reset version information */ 413 /* Reset version information */
414 td->version[i] = 0; 414 td->version[i] = 0;
415 td->pages[i] = -1; 415 td->pages[i] = -1;
416 /* Scan the maximum number of blocks */ 416 /* Scan the maximum number of blocks */
417 for (block = 0; block < td->maxblocks; block++) { 417 for (block = 0; block < td->maxblocks; block++) {
418 int actblock = startblock + dir * block; 418 int actblock = startblock + dir * block;
419 /* Read first page */ 419 /* Read first page */
420 nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize); 420 nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize);
421 if (!check_pattern(buf, scanlen, mtd->oobblock, td)) { 421 if (!check_pattern(buf, scanlen, mtd->oobblock, td)) {
422 td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift); 422 td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift);
423 if (td->options & NAND_BBT_VERSION) { 423 if (td->options & NAND_BBT_VERSION) {
@@ -435,46 +435,46 @@ static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
435 else 435 else
436 printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]); 436 printk (KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]);
437 } 437 }
438 return 0; 438 return 0;
439} 439}
440 440
441/** 441/**
442 * search_read_bbts - [GENERIC] scan the device for bad block table(s) 442 * search_read_bbts - [GENERIC] scan the device for bad block table(s)
443 * @mtd: MTD device structure 443 * @mtd: MTD device structure
444 * @buf: temporary buffer 444 * @buf: temporary buffer
445 * @td: descriptor for the bad block table 445 * @td: descriptor for the bad block table
446 * @md: descriptor for the bad block table mirror 446 * @md: descriptor for the bad block table mirror
447 * 447 *
448 * Search and read the bad block table(s) 448 * Search and read the bad block table(s)
449*/ 449*/
450static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf, 450static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf,
451 struct nand_bbt_descr *td, struct nand_bbt_descr *md) 451 struct nand_bbt_descr *td, struct nand_bbt_descr *md)
452{ 452{
453 /* Search the primary table */ 453 /* Search the primary table */
454 search_bbt (mtd, buf, td); 454 search_bbt (mtd, buf, td);
455 455
456 /* Search the mirror table */ 456 /* Search the mirror table */
457 if (md) 457 if (md)
458 search_bbt (mtd, buf, md); 458 search_bbt (mtd, buf, md);
459 459
460 /* Force result check */ 460 /* Force result check */
461 return 1; 461 return 1;
462} 462}
463
464 463
465/** 464
465/**
466 * write_bbt - [GENERIC] (Re)write the bad block table 466 * write_bbt - [GENERIC] (Re)write the bad block table
467 * 467 *
468 * @mtd: MTD device structure 468 * @mtd: MTD device structure
469 * @buf: temporary buffer 469 * @buf: temporary buffer
470 * @td: descriptor for the bad block table 470 * @td: descriptor for the bad block table
471 * @md: descriptor for the bad block table mirror 471 * @md: descriptor for the bad block table mirror
472 * @chipsel: selector for a specific chip, -1 for all 472 * @chipsel: selector for a specific chip, -1 for all
473 * 473 *
474 * (Re)write the bad block table 474 * (Re)write the bad block table
475 * 475 *
476*/ 476*/
477static int write_bbt (struct mtd_info *mtd, uint8_t *buf, 477static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
478 struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel) 478 struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel)
479{ 479{
480 struct nand_chip *this = mtd->priv; 480 struct nand_chip *this = mtd->priv;
@@ -493,7 +493,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
493 /* Write bad block table per chip rather than per device ? */ 493 /* Write bad block table per chip rather than per device ? */
494 if (td->options & NAND_BBT_PERCHIP) { 494 if (td->options & NAND_BBT_PERCHIP) {
495 numblocks = (int) (this->chipsize >> this->bbt_erase_shift); 495 numblocks = (int) (this->chipsize >> this->bbt_erase_shift);
496 /* Full device write or specific chip ? */ 496 /* Full device write or specific chip ? */
497 if (chipsel == -1) { 497 if (chipsel == -1) {
498 nrchips = this->numchips; 498 nrchips = this->numchips;
499 } else { 499 } else {
@@ -503,19 +503,19 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
503 } else { 503 } else {
504 numblocks = (int) (mtd->size >> this->bbt_erase_shift); 504 numblocks = (int) (mtd->size >> this->bbt_erase_shift);
505 nrchips = 1; 505 nrchips = 1;
506 } 506 }
507 507
508 /* Loop through the chips */ 508 /* Loop through the chips */
509 for (; chip < nrchips; chip++) { 509 for (; chip < nrchips; chip++) {
510 510
511 /* There was already a version of the table, reuse the page 511 /* There was already a version of the table, reuse the page
512 * This applies for absolute placement too, as we have the 512 * This applies for absolute placement too, as we have the
513 * page nr. in td->pages. 513 * page nr. in td->pages.
514 */ 514 */
515 if (td->pages[chip] != -1) { 515 if (td->pages[chip] != -1) {
516 page = td->pages[chip]; 516 page = td->pages[chip];
517 goto write; 517 goto write;
518 } 518 }
519 519
520 /* Automatic placement of the bad block table */ 520 /* Automatic placement of the bad block table */
521 /* Search direction top -> down ? */ 521 /* Search direction top -> down ? */
@@ -525,7 +525,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
525 } else { 525 } else {
526 startblock = chip * numblocks; 526 startblock = chip * numblocks;
527 dir = 1; 527 dir = 1;
528 } 528 }
529 529
530 for (i = 0; i < td->maxblocks; i++) { 530 for (i = 0; i < td->maxblocks; i++) {
531 int block = startblock + dir * i; 531 int block = startblock + dir * i;
@@ -542,7 +542,7 @@ static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
542 } 542 }
543 printk (KERN_ERR "No space left to write bad block table\n"); 543 printk (KERN_ERR "No space left to write bad block table\n");
544 return -ENOSPC; 544 return -ENOSPC;
545write: 545write:
546 546
547 /* Set up shift count and masks for the flash table */ 547 /* Set up shift count and masks for the flash table */
548 bits = td->options & NAND_BBT_NRBITS_MSK; 548 bits = td->options & NAND_BBT_NRBITS_MSK;
@@ -553,14 +553,14 @@ write:
553 case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break; 553 case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break;
554 default: return -EINVAL; 554 default: return -EINVAL;
555 } 555 }
556 556
557 bbtoffs = chip * (numblocks >> 2); 557 bbtoffs = chip * (numblocks >> 2);
558 558
559 to = ((loff_t) page) << this->page_shift; 559 to = ((loff_t) page) << this->page_shift;
560 560
561 memcpy (&oobinfo, this->autooob, sizeof(oobinfo)); 561 memcpy (&oobinfo, this->autooob, sizeof(oobinfo));
562 oobinfo.useecc = MTD_NANDECC_PLACEONLY; 562 oobinfo.useecc = MTD_NANDECC_PLACEONLY;
563 563
564 /* Must we save the block contents ? */ 564 /* Must we save the block contents ? */
565 if (td->options & NAND_BBT_SAVECONTENT) { 565 if (td->options & NAND_BBT_SAVECONTENT) {
566 /* Make it block aligned */ 566 /* Make it block aligned */
@@ -599,7 +599,7 @@ write:
599 buf[len + td->veroffs] = td->version[chip]; 599 buf[len + td->veroffs] = td->version[chip];
600 } 600 }
601 } 601 }
602 602
603 /* walk through the memory table */ 603 /* walk through the memory table */
604 for (i = 0; i < numblocks; ) { 604 for (i = 0; i < numblocks; ) {
605 uint8_t dat; 605 uint8_t dat;
@@ -611,7 +611,7 @@ write:
611 dat >>= 2; 611 dat >>= 2;
612 } 612 }
613 } 613 }
614 614
615 memset (&einfo, 0, sizeof (einfo)); 615 memset (&einfo, 0, sizeof (einfo));
616 einfo.mtd = mtd; 616 einfo.mtd = mtd;
617 einfo.addr = (unsigned long) to; 617 einfo.addr = (unsigned long) to;
@@ -621,18 +621,18 @@ write:
621 printk (KERN_WARNING "nand_bbt: Error during block erase: %d\n", res); 621 printk (KERN_WARNING "nand_bbt: Error during block erase: %d\n", res);
622 return res; 622 return res;
623 } 623 }
624 624
625 res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo); 625 res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
626 if (res < 0) { 626 if (res < 0) {
627 printk (KERN_WARNING "nand_bbt: Error while writing bad block table %d\n", res); 627 printk (KERN_WARNING "nand_bbt: Error while writing bad block table %d\n", res);
628 return res; 628 return res;
629 } 629 }
630 printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n", 630 printk (KERN_DEBUG "Bad block table written to 0x%08x, version 0x%02X\n",
631 (unsigned int) to, td->version[chip]); 631 (unsigned int) to, td->version[chip]);
632 632
633 /* Mark it as used */ 633 /* Mark it as used */
634 td->pages[chip] = page; 634 td->pages[chip] = page;
635 } 635 }
636 return 0; 636 return 0;
637} 637}
638 638
@@ -641,7 +641,7 @@ write:
641 * @mtd: MTD device structure 641 * @mtd: MTD device structure
642 * @bd: descriptor for the good/bad block search pattern 642 * @bd: descriptor for the good/bad block search pattern
643 * 643 *
644 * The function creates a memory based bbt by scanning the device 644 * The function creates a memory based bbt by scanning the device
645 * for manufacturer / software marked good / bad blocks 645 * for manufacturer / software marked good / bad blocks
646*/ 646*/
647static inline int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd) 647static inline int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
@@ -673,11 +673,11 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
673 struct nand_bbt_descr *rd, *rd2; 673 struct nand_bbt_descr *rd, *rd2;
674 674
675 /* Do we have a bbt per chip ? */ 675 /* Do we have a bbt per chip ? */
676 if (td->options & NAND_BBT_PERCHIP) 676 if (td->options & NAND_BBT_PERCHIP)
677 chips = this->numchips; 677 chips = this->numchips;
678 else 678 else
679 chips = 1; 679 chips = 1;
680 680
681 for (i = 0; i < chips; i++) { 681 for (i = 0; i < chips; i++) {
682 writeops = 0; 682 writeops = 0;
683 rd = NULL; 683 rd = NULL;
@@ -692,7 +692,7 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
692 } 692 }
693 693
694 if (td->pages[i] == -1) { 694 if (td->pages[i] == -1) {
695 rd = md; 695 rd = md;
696 td->version[i] = md->version[i]; 696 td->version[i] = md->version[i];
697 writeops = 1; 697 writeops = 1;
698 goto writecheck; 698 goto writecheck;
@@ -710,7 +710,7 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
710 if (!(td->options & NAND_BBT_VERSION)) 710 if (!(td->options & NAND_BBT_VERSION))
711 rd2 = md; 711 rd2 = md;
712 goto writecheck; 712 goto writecheck;
713 } 713 }
714 714
715 if (((int8_t) (td->version[i] - md->version[i])) > 0) { 715 if (((int8_t) (td->version[i] - md->version[i])) > 0) {
716 rd = td; 716 rd = td;
@@ -735,15 +735,15 @@ static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_des
735create: 735create:
736 /* Create the bad block table by scanning the device ? */ 736 /* Create the bad block table by scanning the device ? */
737 if (!(td->options & NAND_BBT_CREATE)) 737 if (!(td->options & NAND_BBT_CREATE))
738 continue; 738 continue;
739 739
740 /* Create the table in memory by scanning the chip(s) */ 740 /* Create the table in memory by scanning the chip(s) */
741 create_bbt (mtd, buf, bd, chipsel); 741 create_bbt (mtd, buf, bd, chipsel);
742 742
743 td->version[i] = 1; 743 td->version[i] = 1;
744 if (md) 744 if (md)
745 md->version[i] = 1; 745 md->version[i] = 1;
746writecheck: 746writecheck:
747 /* read back first ? */ 747 /* read back first ? */
748 if (rd) 748 if (rd)
749 read_abs_bbt (mtd, buf, rd, chipsel); 749 read_abs_bbt (mtd, buf, rd, chipsel);
@@ -757,7 +757,7 @@ writecheck:
757 if (res < 0) 757 if (res < 0)
758 return res; 758 return res;
759 } 759 }
760 760
761 /* Write the mirror bad block table to the device ? */ 761 /* Write the mirror bad block table to the device ? */
762 if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) { 762 if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
763 res = write_bbt (mtd, buf, md, td, chipsel); 763 res = write_bbt (mtd, buf, md, td, chipsel);
@@ -765,11 +765,11 @@ writecheck:
765 return res; 765 return res;
766 } 766 }
767 } 767 }
768 return 0; 768 return 0;
769} 769}
770 770
771/** 771/**
772 * mark_bbt_regions - [GENERIC] mark the bad block table regions 772 * mark_bbt_regions - [GENERIC] mark the bad block table regions
773 * @mtd: MTD device structure 773 * @mtd: MTD device structure
774 * @td: bad block table descriptor 774 * @td: bad block table descriptor
775 * 775 *
@@ -790,14 +790,14 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
790 } else { 790 } else {
791 chips = 1; 791 chips = 1;
792 nrblocks = (int)(mtd->size >> this->bbt_erase_shift); 792 nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
793 } 793 }
794 794
795 for (i = 0; i < chips; i++) { 795 for (i = 0; i < chips; i++) {
796 if ((td->options & NAND_BBT_ABSPAGE) || 796 if ((td->options & NAND_BBT_ABSPAGE) ||
797 !(td->options & NAND_BBT_WRITE)) { 797 !(td->options & NAND_BBT_WRITE)) {
798 if (td->pages[i] == -1) continue; 798 if (td->pages[i] == -1) continue;
799 block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift); 799 block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
800 block <<= 1; 800 block <<= 1;
801 oldval = this->bbt[(block >> 3)]; 801 oldval = this->bbt[(block >> 3)];
802 newval = oldval | (0x2 << (block & 0x06)); 802 newval = oldval | (0x2 << (block & 0x06));
803 this->bbt[(block >> 3)] = newval; 803 this->bbt[(block >> 3)] = newval;
@@ -808,16 +808,16 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
808 update = 0; 808 update = 0;
809 if (td->options & NAND_BBT_LASTBLOCK) 809 if (td->options & NAND_BBT_LASTBLOCK)
810 block = ((i + 1) * nrblocks) - td->maxblocks; 810 block = ((i + 1) * nrblocks) - td->maxblocks;
811 else 811 else
812 block = i * nrblocks; 812 block = i * nrblocks;
813 block <<= 1; 813 block <<= 1;
814 for (j = 0; j < td->maxblocks; j++) { 814 for (j = 0; j < td->maxblocks; j++) {
815 oldval = this->bbt[(block >> 3)]; 815 oldval = this->bbt[(block >> 3)];
816 newval = oldval | (0x2 << (block & 0x06)); 816 newval = oldval | (0x2 << (block & 0x06));
817 this->bbt[(block >> 3)] = newval; 817 this->bbt[(block >> 3)] = newval;
818 if (oldval != newval) update = 1; 818 if (oldval != newval) update = 1;
819 block += 2; 819 block += 2;
820 } 820 }
821 /* If we want reserved blocks to be recorded to flash, and some 821 /* If we want reserved blocks to be recorded to flash, and some
822 new ones have been marked, then we need to update the stored 822 new ones have been marked, then we need to update the stored
823 bbts. This should only happen once. */ 823 bbts. This should only happen once. */
@@ -831,7 +831,7 @@ static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
831 * @mtd: MTD device structure 831 * @mtd: MTD device structure
832 * @bd: descriptor for the good/bad block search pattern 832 * @bd: descriptor for the good/bad block search pattern
833 * 833 *
834 * The function checks, if a bad block table(s) is/are already 834 * The function checks, if a bad block table(s) is/are already
835 * available. If not it scans the device for manufacturer 835 * available. If not it scans the device for manufacturer
836 * marked good / bad blocks and writes the bad block table(s) to 836 * marked good / bad blocks and writes the bad block table(s) to
837 * the selected place. 837 * the selected place.
@@ -880,30 +880,30 @@ int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
880 this->bbt = NULL; 880 this->bbt = NULL;
881 return -ENOMEM; 881 return -ENOMEM;
882 } 882 }
883 883
884 /* Is the bbt at a given page ? */ 884 /* Is the bbt at a given page ? */
885 if (td->options & NAND_BBT_ABSPAGE) { 885 if (td->options & NAND_BBT_ABSPAGE) {
886 res = read_abs_bbts (mtd, buf, td, md); 886 res = read_abs_bbts (mtd, buf, td, md);
887 } else { 887 } else {
888 /* Search the bad block table using a pattern in oob */ 888 /* Search the bad block table using a pattern in oob */
889 res = search_read_bbts (mtd, buf, td, md); 889 res = search_read_bbts (mtd, buf, td, md);
890 } 890 }
891 891
892 if (res) 892 if (res)
893 res = check_create (mtd, buf, bd); 893 res = check_create (mtd, buf, bd);
894 894
895 /* Prevent the bbt regions from erasing / writing */ 895 /* Prevent the bbt regions from erasing / writing */
896 mark_bbt_region (mtd, td); 896 mark_bbt_region (mtd, td);
897 if (md) 897 if (md)
898 mark_bbt_region (mtd, md); 898 mark_bbt_region (mtd, md);
899 899
900 kfree (buf); 900 kfree (buf);
901 return res; 901 return res;
902} 902}
903 903
904 904
905/** 905/**
906 * nand_update_bbt - [NAND Interface] update bad block table(s) 906 * nand_update_bbt - [NAND Interface] update bad block table(s)
907 * @mtd: MTD device structure 907 * @mtd: MTD device structure
908 * @offs: the offset of the newly marked block 908 * @offs: the offset of the newly marked block
909 * 909 *
@@ -930,7 +930,7 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
930 printk (KERN_ERR "nand_update_bbt: Out of memory\n"); 930 printk (KERN_ERR "nand_update_bbt: Out of memory\n");
931 return -ENOMEM; 931 return -ENOMEM;
932 } 932 }
933 933
934 writeops = md != NULL ? 0x03 : 0x01; 934 writeops = md != NULL ? 0x03 : 0x01;
935 935
936 /* Do we have a bbt per chip ? */ 936 /* Do we have a bbt per chip ? */
@@ -944,7 +944,7 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
944 944
945 td->version[chip]++; 945 td->version[chip]++;
946 if (md) 946 if (md)
947 md->version[chip]++; 947 md->version[chip]++;
948 948
949 /* Write the bad block table to the device ? */ 949 /* Write the bad block table to the device ? */
950 if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { 950 if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
@@ -957,12 +957,12 @@ int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
957 res = write_bbt (mtd, buf, md, td, chipsel); 957 res = write_bbt (mtd, buf, md, td, chipsel);
958 } 958 }
959 959
960out: 960out:
961 kfree (buf); 961 kfree (buf);
962 return res; 962 return res;
963} 963}
964 964
965/* Define some generic bad / good block scan pattern which are used 965/* Define some generic bad / good block scan pattern which are used
966 * while scanning a device for factory marked good / bad blocks. */ 966 * while scanning a device for factory marked good / bad blocks. */
967static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; 967static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
968 968
@@ -1009,7 +1009,7 @@ static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
1009static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' }; 1009static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
1010 1010
1011static struct nand_bbt_descr bbt_main_descr = { 1011static struct nand_bbt_descr bbt_main_descr = {
1012 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE 1012 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
1013 | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, 1013 | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
1014 .offs = 8, 1014 .offs = 8,
1015 .len = 4, 1015 .len = 4,
@@ -1019,7 +1019,7 @@ static struct nand_bbt_descr bbt_main_descr = {
1019}; 1019};
1020 1020
1021static struct nand_bbt_descr bbt_mirror_descr = { 1021static struct nand_bbt_descr bbt_mirror_descr = {
1022 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE 1022 .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
1023 | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, 1023 | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
1024 .offs = 8, 1024 .offs = 8,
1025 .len = 4, 1025 .len = 4,
@@ -1029,7 +1029,7 @@ static struct nand_bbt_descr bbt_mirror_descr = {
1029}; 1029};
1030 1030
1031/** 1031/**
1032 * nand_default_bbt - [NAND Interface] Select a default bad block table for the device 1032 * nand_default_bbt - [NAND Interface] Select a default bad block table for the device
1033 * @mtd: MTD device structure 1033 * @mtd: MTD device structure
1034 * 1034 *
1035 * This function selects the default bad block table 1035 * This function selects the default bad block table
@@ -1039,29 +1039,29 @@ static struct nand_bbt_descr bbt_mirror_descr = {
1039int nand_default_bbt (struct mtd_info *mtd) 1039int nand_default_bbt (struct mtd_info *mtd)
1040{ 1040{
1041 struct nand_chip *this = mtd->priv; 1041 struct nand_chip *this = mtd->priv;
1042 1042
1043 /* Default for AG-AND. We must use a flash based 1043 /* Default for AG-AND. We must use a flash based
1044 * bad block table as the devices have factory marked 1044 * bad block table as the devices have factory marked
1045 * _good_ blocks. Erasing those blocks leads to loss 1045 * _good_ blocks. Erasing those blocks leads to loss
1046 * of the good / bad information, so we _must_ store 1046 * of the good / bad information, so we _must_ store
1047 * this information in a good / bad table during 1047 * this information in a good / bad table during
1048 * startup 1048 * startup
1049 */ 1049 */
1050 if (this->options & NAND_IS_AND) { 1050 if (this->options & NAND_IS_AND) {
1051 /* Use the default pattern descriptors */ 1051 /* Use the default pattern descriptors */
1052 if (!this->bbt_td) { 1052 if (!this->bbt_td) {
1053 this->bbt_td = &bbt_main_descr; 1053 this->bbt_td = &bbt_main_descr;
1054 this->bbt_md = &bbt_mirror_descr; 1054 this->bbt_md = &bbt_mirror_descr;
1055 } 1055 }
1056 this->options |= NAND_USE_FLASH_BBT; 1056 this->options |= NAND_USE_FLASH_BBT;
1057 return nand_scan_bbt (mtd, &agand_flashbased); 1057 return nand_scan_bbt (mtd, &agand_flashbased);
1058 } 1058 }
1059 1059
1060 1060
1061 /* Is a flash based bad block table requested ? */ 1061 /* Is a flash based bad block table requested ? */
1062 if (this->options & NAND_USE_FLASH_BBT) { 1062 if (this->options & NAND_USE_FLASH_BBT) {
1063 /* Use the default pattern descriptors */ 1063 /* Use the default pattern descriptors */
1064 if (!this->bbt_td) { 1064 if (!this->bbt_td) {
1065 this->bbt_td = &bbt_main_descr; 1065 this->bbt_td = &bbt_main_descr;
1066 this->bbt_md = &bbt_mirror_descr; 1066 this->bbt_md = &bbt_mirror_descr;
1067 } 1067 }
@@ -1081,7 +1081,7 @@ int nand_default_bbt (struct mtd_info *mtd)
1081} 1081}
1082 1082
1083/** 1083/**
1084 * nand_isbad_bbt - [NAND Interface] Check if a block is bad 1084 * nand_isbad_bbt - [NAND Interface] Check if a block is bad
1085 * @mtd: MTD device structure 1085 * @mtd: MTD device structure
1086 * @offs: offset in the device 1086 * @offs: offset in the device
1087 * @allowbbt: allow access to bad block table region 1087 * @allowbbt: allow access to bad block table region
@@ -1092,12 +1092,12 @@ int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt)
1092 struct nand_chip *this = mtd->priv; 1092 struct nand_chip *this = mtd->priv;
1093 int block; 1093 int block;
1094 uint8_t res; 1094 uint8_t res;
1095 1095
1096 /* Get block number * 2 */ 1096 /* Get block number * 2 */
1097 block = (int) (offs >> (this->bbt_erase_shift - 1)); 1097 block = (int) (offs >> (this->bbt_erase_shift - 1));
1098 res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03; 1098 res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
1099 1099
1100 DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n", 1100 DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n",
1101 (unsigned int)offs, block >> 1, res); 1101 (unsigned int)offs, block >> 1, res);
1102 1102
1103 switch ((int)res) { 1103 switch ((int)res) {
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index 2e341b75437a..40ac909150a3 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -7,22 +7,22 @@
7 * Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com) 7 * Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com)
8 * Toshiba America Electronics Components, Inc. 8 * Toshiba America Electronics Components, Inc.
9 * 9 *
10 * $Id: nand_ecc.c,v 1.14 2004/06/16 15:34:37 gleixner Exp $ 10 * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $
11 * 11 *
12 * This file is free software; you can redistribute it and/or modify it 12 * This file is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the 13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 or (at your option) any 14 * Free Software Foundation; either version 2 or (at your option) any
15 * later version. 15 * later version.
16 * 16 *
17 * This file is distributed in the hope that it will be useful, but WITHOUT 17 * This file is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * for more details. 20 * for more details.
21 * 21 *
22 * You should have received a copy of the GNU General Public License along 22 * You should have received a copy of the GNU General Public License along
23 * with this file; if not, write to the Free Software Foundation, Inc., 23 * with this file; if not, write to the Free Software Foundation, Inc.,
24 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 24 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25 * 25 *
26 * As a special exception, if other files instantiate templates or use 26 * As a special exception, if other files instantiate templates or use
27 * macros or inline functions from these files, or you compile these 27 * macros or inline functions from these files, or you compile these
28 * files and link them with other works to produce a work based on these 28 * files and link them with other works to produce a work based on these
@@ -30,7 +30,7 @@
30 * covered by the GNU General Public License. However the source code for 30 * covered by the GNU General Public License. However the source code for
31 * these files must still be made available in accordance with section (3) 31 * these files must still be made available in accordance with section (3)
32 * of the GNU General Public License. 32 * of the GNU General Public License.
33 * 33 *
34 * This exception does not invalidate any other reasons why a work based on 34 * This exception does not invalidate any other reasons why a work based on
35 * this file might be covered by the GNU General Public License. 35 * this file might be covered by the GNU General Public License.
36 */ 36 */
@@ -67,7 +67,7 @@ static const u_char nand_ecc_precalc_table[] = {
67 * nand_trans_result - [GENERIC] create non-inverted ECC 67 * nand_trans_result - [GENERIC] create non-inverted ECC
68 * @reg2: line parity reg 2 68 * @reg2: line parity reg 2
69 * @reg3: line parity reg 3 69 * @reg3: line parity reg 3
70 * @ecc_code: ecc 70 * @ecc_code: ecc
71 * 71 *
72 * Creates non-inverted ECC code from line parity 72 * Creates non-inverted ECC code from line parity
73 */ 73 */
@@ -75,11 +75,11 @@ static void nand_trans_result(u_char reg2, u_char reg3,
75 u_char *ecc_code) 75 u_char *ecc_code)
76{ 76{
77 u_char a, b, i, tmp1, tmp2; 77 u_char a, b, i, tmp1, tmp2;
78 78
79 /* Initialize variables */ 79 /* Initialize variables */
80 a = b = 0x80; 80 a = b = 0x80;
81 tmp1 = tmp2 = 0; 81 tmp1 = tmp2 = 0;
82 82
83 /* Calculate first ECC byte */ 83 /* Calculate first ECC byte */
84 for (i = 0; i < 4; i++) { 84 for (i = 0; i < 4; i++) {
85 if (reg3 & a) /* LP15,13,11,9 --> ecc_code[0] */ 85 if (reg3 & a) /* LP15,13,11,9 --> ecc_code[0] */
@@ -90,7 +90,7 @@ static void nand_trans_result(u_char reg2, u_char reg3,
90 b >>= 1; 90 b >>= 1;
91 a >>= 1; 91 a >>= 1;
92 } 92 }
93 93
94 /* Calculate second ECC byte */ 94 /* Calculate second ECC byte */
95 b = 0x80; 95 b = 0x80;
96 for (i = 0; i < 4; i++) { 96 for (i = 0; i < 4; i++) {
@@ -102,7 +102,7 @@ static void nand_trans_result(u_char reg2, u_char reg3,
102 b >>= 1; 102 b >>= 1;
103 a >>= 1; 103 a >>= 1;
104 } 104 }
105 105
106 /* Store two of the ECC bytes */ 106 /* Store two of the ECC bytes */
107 ecc_code[0] = tmp1; 107 ecc_code[0] = tmp1;
108 ecc_code[1] = tmp2; 108 ecc_code[1] = tmp2;
@@ -118,28 +118,28 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code
118{ 118{
119 u_char idx, reg1, reg2, reg3; 119 u_char idx, reg1, reg2, reg3;
120 int j; 120 int j;
121 121
122 /* Initialize variables */ 122 /* Initialize variables */
123 reg1 = reg2 = reg3 = 0; 123 reg1 = reg2 = reg3 = 0;
124 ecc_code[0] = ecc_code[1] = ecc_code[2] = 0; 124 ecc_code[0] = ecc_code[1] = ecc_code[2] = 0;
125 125
126 /* Build up column parity */ 126 /* Build up column parity */
127 for(j = 0; j < 256; j++) { 127 for(j = 0; j < 256; j++) {
128 128
129 /* Get CP0 - CP5 from table */ 129 /* Get CP0 - CP5 from table */
130 idx = nand_ecc_precalc_table[dat[j]]; 130 idx = nand_ecc_precalc_table[dat[j]];
131 reg1 ^= (idx & 0x3f); 131 reg1 ^= (idx & 0x3f);
132 132
133 /* All bit XOR = 1 ? */ 133 /* All bit XOR = 1 ? */
134 if (idx & 0x40) { 134 if (idx & 0x40) {
135 reg3 ^= (u_char) j; 135 reg3 ^= (u_char) j;
136 reg2 ^= ~((u_char) j); 136 reg2 ^= ~((u_char) j);
137 } 137 }
138 } 138 }
139 139
140 /* Create non-inverted ECC code from line parity */ 140 /* Create non-inverted ECC code from line parity */
141 nand_trans_result(reg2, reg3, ecc_code); 141 nand_trans_result(reg2, reg3, ecc_code);
142 142
143 /* Calculate final ECC code */ 143 /* Calculate final ECC code */
144 ecc_code[0] = ~ecc_code[0]; 144 ecc_code[0] = ~ecc_code[0];
145 ecc_code[1] = ~ecc_code[1]; 145 ecc_code[1] = ~ecc_code[1];
@@ -159,12 +159,12 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code
159int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) 159int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
160{ 160{
161 u_char a, b, c, d1, d2, d3, add, bit, i; 161 u_char a, b, c, d1, d2, d3, add, bit, i;
162 162
163 /* Do error detection */ 163 /* Do error detection */
164 d1 = calc_ecc[0] ^ read_ecc[0]; 164 d1 = calc_ecc[0] ^ read_ecc[0];
165 d2 = calc_ecc[1] ^ read_ecc[1]; 165 d2 = calc_ecc[1] ^ read_ecc[1];
166 d3 = calc_ecc[2] ^ read_ecc[2]; 166 d3 = calc_ecc[2] ^ read_ecc[2];
167 167
168 if ((d1 | d2 | d3) == 0) { 168 if ((d1 | d2 | d3) == 0) {
169 /* No errors */ 169 /* No errors */
170 return 0; 170 return 0;
@@ -173,7 +173,7 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_cha
173 a = (d1 ^ (d1 >> 1)) & 0x55; 173 a = (d1 ^ (d1 >> 1)) & 0x55;
174 b = (d2 ^ (d2 >> 1)) & 0x55; 174 b = (d2 ^ (d2 >> 1)) & 0x55;
175 c = (d3 ^ (d3 >> 1)) & 0x54; 175 c = (d3 ^ (d3 >> 1)) & 0x54;
176 176
177 /* Found and will correct single bit error in the data */ 177 /* Found and will correct single bit error in the data */
178 if ((a == 0x55) && (b == 0x55) && (c == 0x54)) { 178 if ((a == 0x55) && (b == 0x55) && (c == 0x54)) {
179 c = 0x80; 179 c = 0x80;
@@ -237,7 +237,7 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_cha
237 } 237 }
238 } 238 }
239 } 239 }
240 240
241 /* Should never happen */ 241 /* Should never happen */
242 return -1; 242 return -1;
243} 243}
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index efe246961b69..dbc7e55a4247 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de) 4 * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
5 * 5 *
6 * $Id: nand_ids.c,v 1.14 2005/06/23 09:38:50 gleixner Exp $ 6 * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as 9 * it under the terms of the GNU General Public License version 2 as
@@ -14,14 +14,14 @@
14#include <linux/mtd/nand.h> 14#include <linux/mtd/nand.h>
15/* 15/*
16* Chip ID list 16* Chip ID list
17* 17*
18* Name. ID code, pagesize, chipsize in MegaByte, eraseblock size, 18* Name. ID code, pagesize, chipsize in MegaByte, eraseblock size,
19* options 19* options
20* 20*
21* Pagesize; 0, 256, 512 21* Pagesize; 0, 256, 512
22* 0 get this information from the extended chip ID 22* 0 get this information from the extended chip ID
23+ 256 256 Byte page size 23+ 256 256 Byte page size
24* 512 512 Byte page size 24* 512 512 Byte page size
25*/ 25*/
26struct nand_flash_dev nand_flash_ids[] = { 26struct nand_flash_dev nand_flash_ids[] = {
27 {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0}, 27 {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0},
@@ -34,27 +34,27 @@ struct nand_flash_dev nand_flash_ids[] = {
34 {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0}, 34 {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0},
35 {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0}, 35 {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0},
36 {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0}, 36 {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0},
37 37
38 {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0}, 38 {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0},
39 {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0}, 39 {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0},
40 {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16}, 40 {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
41 {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16}, 41 {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
42 42
43 {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0}, 43 {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0},
44 {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0}, 44 {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0},
45 {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16}, 45 {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16},
46 {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16}, 46 {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16},
47 47
48 {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0}, 48 {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0},
49 {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0}, 49 {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0},
50 {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16}, 50 {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16},
51 {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16}, 51 {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16},
52 52
53 {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0}, 53 {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0},
54 {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0}, 54 {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0},
55 {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16}, 55 {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16},
56 {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16}, 56 {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
57 57
58 {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0}, 58 {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0},
59 {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0}, 59 {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0},
60 {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0}, 60 {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0},
@@ -62,7 +62,7 @@ struct nand_flash_dev nand_flash_ids[] = {
62 {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16}, 62 {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
63 {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16}, 63 {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
64 {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16}, 64 {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
65 65
66 {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0}, 66 {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0},
67 67
68 /* These are the new chips with large page size. The pagesize 68 /* These are the new chips with large page size. The pagesize
@@ -73,7 +73,7 @@ struct nand_flash_dev nand_flash_ids[] = {
73 {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 73 {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
74 {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 74 {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
75 {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 75 {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
76 76
77 /* 1 Gigabit */ 77 /* 1 Gigabit */
78 {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 78 {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
79 {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 79 {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
@@ -85,13 +85,13 @@ struct nand_flash_dev nand_flash_ids[] = {
85 {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 85 {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
86 {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 86 {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
87 {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 87 {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
88 88
89 /* 4 Gigabit */ 89 /* 4 Gigabit */
90 {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 90 {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
91 {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 91 {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
92 {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 92 {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
93 {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 93 {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
94 94
95 /* 8 Gigabit */ 95 /* 8 Gigabit */
96 {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 96 {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
97 {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}, 97 {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
@@ -104,11 +104,11 @@ struct nand_flash_dev nand_flash_ids[] = {
104 {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 104 {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
105 {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR}, 105 {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
106 106
107 /* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout ! 107 /* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout !
108 * The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes 108 * The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes
109 * 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7 109 * 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7
110 * Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go 110 * Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go
111 * There are more speed improvements for reads and writes possible, but not implemented now 111 * There are more speed improvements for reads and writes possible, but not implemented now
112 */ 112 */
113 {"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH}, 113 {"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH},
114 114
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 754b6ed7ce14..de4500395300 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Author: Artem B. Bityuckiy <dedekind@oktetlabs.ru>, <dedekind@infradead.org> 4 * Author: Artem B. Bityuckiy <dedekind@oktetlabs.ru>, <dedekind@infradead.org>
5 * 5 *
6 * Copyright (C) 2004 Nokia Corporation 6 * Copyright (C) 2004 Nokia Corporation
7 * 7 *
8 * Note: NS means "NAND Simulator". 8 * Note: NS means "NAND Simulator".
9 * Note: Input means input TO flash chip, output means output FROM chip. 9 * Note: Input means input TO flash chip, output means output FROM chip.
@@ -126,7 +126,7 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero");
126 126
127/* The largest possible page size */ 127/* The largest possible page size */
128#define NS_LARGEST_PAGE_SIZE 2048 128#define NS_LARGEST_PAGE_SIZE 2048
129 129
130/* The prefix for simulator output */ 130/* The prefix for simulator output */
131#define NS_OUTPUT_PREFIX "[nandsim]" 131#define NS_OUTPUT_PREFIX "[nandsim]"
132 132
@@ -145,7 +145,7 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero");
145 do { if (do_delays) udelay(us); } while(0) 145 do { if (do_delays) udelay(us); } while(0)
146#define NS_MDELAY(us) \ 146#define NS_MDELAY(us) \
147 do { if (do_delays) mdelay(us); } while(0) 147 do { if (do_delays) mdelay(us); } while(0)
148 148
149/* Is the nandsim structure initialized ? */ 149/* Is the nandsim structure initialized ? */
150#define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0) 150#define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0)
151 151
@@ -153,12 +153,12 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero");
153#define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0))) 153#define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0)))
154 154
155/* Operation failed completion status */ 155/* Operation failed completion status */
156#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns)) 156#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns))
157 157
158/* Calculate the page offset in flash RAM image by (row, column) address */ 158/* Calculate the page offset in flash RAM image by (row, column) address */
159#define NS_RAW_OFFSET(ns) \ 159#define NS_RAW_OFFSET(ns) \
160 (((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column) 160 (((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column)
161 161
162/* Calculate the OOB offset in flash RAM image by (row, column) address */ 162/* Calculate the OOB offset in flash RAM image by (row, column) address */
163#define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz) 163#define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz)
164 164
@@ -223,15 +223,15 @@ MODULE_PARM_DESC(dbg, "Output debug information if not zero");
223 223
224/* Remove action bits ftom state */ 224/* Remove action bits ftom state */
225#define NS_STATE(x) ((x) & ~ACTION_MASK) 225#define NS_STATE(x) ((x) & ~ACTION_MASK)
226 226
227/* 227/*
228 * Maximum previous states which need to be saved. Currently saving is 228 * Maximum previous states which need to be saved. Currently saving is
229 * only needed for page programm operation with preceeded read command 229 * only needed for page programm operation with preceeded read command
230 * (which is only valid for 512-byte pages). 230 * (which is only valid for 512-byte pages).
231 */ 231 */
232#define NS_MAX_PREVSTATES 1 232#define NS_MAX_PREVSTATES 1
233 233
234/* 234/*
235 * The structure which describes all the internal simulator data. 235 * The structure which describes all the internal simulator data.
236 */ 236 */
237struct nandsim { 237struct nandsim {
@@ -242,7 +242,7 @@ struct nandsim {
242 uint32_t options; /* chip's characteristic bits */ 242 uint32_t options; /* chip's characteristic bits */
243 uint32_t state; /* current chip state */ 243 uint32_t state; /* current chip state */
244 uint32_t nxstate; /* next expected state */ 244 uint32_t nxstate; /* next expected state */
245 245
246 uint32_t *op; /* current operation, NULL operations isn't known yet */ 246 uint32_t *op; /* current operation, NULL operations isn't known yet */
247 uint32_t pstates[NS_MAX_PREVSTATES]; /* previous states */ 247 uint32_t pstates[NS_MAX_PREVSTATES]; /* previous states */
248 uint16_t npstates; /* number of previous states saved */ 248 uint16_t npstates; /* number of previous states saved */
@@ -413,7 +413,7 @@ init_nandsim(struct mtd_info *mtd)
413 ns->geom.secaddrbytes = 3; 413 ns->geom.secaddrbytes = 3;
414 } 414 }
415 } 415 }
416 416
417 /* Detect how many ID bytes the NAND chip outputs */ 417 /* Detect how many ID bytes the NAND chip outputs */
418 for (i = 0; nand_flash_ids[i].name != NULL; i++) { 418 for (i = 0; nand_flash_ids[i].name != NULL; i++) {
419 if (second_id_byte != nand_flash_ids[i].id) 419 if (second_id_byte != nand_flash_ids[i].id)
@@ -444,7 +444,7 @@ init_nandsim(struct mtd_info *mtd)
444#ifdef CONFIG_NS_ABS_POS 444#ifdef CONFIG_NS_ABS_POS
445 ns->mem.byte = ioremap(CONFIG_NS_ABS_POS, ns->geom.totszoob); 445 ns->mem.byte = ioremap(CONFIG_NS_ABS_POS, ns->geom.totszoob);
446 if (!ns->mem.byte) { 446 if (!ns->mem.byte) {
447 NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n", 447 NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n",
448 (void *)CONFIG_NS_ABS_POS); 448 (void *)CONFIG_NS_ABS_POS);
449 return -ENOMEM; 449 return -ENOMEM;
450 } 450 }
@@ -567,7 +567,7 @@ static int
567check_command(int cmd) 567check_command(int cmd)
568{ 568{
569 switch (cmd) { 569 switch (cmd) {
570 570
571 case NAND_CMD_READ0: 571 case NAND_CMD_READ0:
572 case NAND_CMD_READSTART: 572 case NAND_CMD_READSTART:
573 case NAND_CMD_PAGEPROG: 573 case NAND_CMD_PAGEPROG:
@@ -580,7 +580,7 @@ check_command(int cmd)
580 case NAND_CMD_RESET: 580 case NAND_CMD_RESET:
581 case NAND_CMD_READ1: 581 case NAND_CMD_READ1:
582 return 0; 582 return 0;
583 583
584 case NAND_CMD_STATUS_MULTI: 584 case NAND_CMD_STATUS_MULTI:
585 default: 585 default:
586 return 1; 586 return 1;
@@ -631,7 +631,7 @@ static inline void
631accept_addr_byte(struct nandsim *ns, u_char bt) 631accept_addr_byte(struct nandsim *ns, u_char bt)
632{ 632{
633 uint byte = (uint)bt; 633 uint byte = (uint)bt;
634 634
635 if (ns->regs.count < (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) 635 if (ns->regs.count < (ns->geom.pgaddrbytes - ns->geom.secaddrbytes))
636 ns->regs.column |= (byte << 8 * ns->regs.count); 636 ns->regs.column |= (byte << 8 * ns->regs.count);
637 else { 637 else {
@@ -642,11 +642,11 @@ accept_addr_byte(struct nandsim *ns, u_char bt)
642 642
643 return; 643 return;
644} 644}
645 645
646/* 646/*
647 * Switch to STATE_READY state. 647 * Switch to STATE_READY state.
648 */ 648 */
649static inline void 649static inline void
650switch_to_ready_state(struct nandsim *ns, u_char status) 650switch_to_ready_state(struct nandsim *ns, u_char status)
651{ 651{
652 NS_DBG("switch_to_ready_state: switch to %s state\n", get_state_name(STATE_READY)); 652 NS_DBG("switch_to_ready_state: switch to %s state\n", get_state_name(STATE_READY));
@@ -675,7 +675,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
675 * (for example program from the second half and read from the 675 * (for example program from the second half and read from the
676 * second half operations both begin with the READ1 command). In this 676 * second half operations both begin with the READ1 command). In this
677 * case the ns->pstates[] array contains previous states. 677 * case the ns->pstates[] array contains previous states.
678 * 678 *
679 * Thus, the function tries to find operation containing the following 679 * Thus, the function tries to find operation containing the following
680 * states (if the 'flag' parameter is 0): 680 * states (if the 'flag' parameter is 0):
681 * ns->pstates[0], ... ns->pstates[ns->npstates], ns->state 681 * ns->pstates[0], ... ns->pstates[ns->npstates], ns->state
@@ -683,7 +683,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
683 * If (one and only one) matching operation is found, it is accepted ( 683 * If (one and only one) matching operation is found, it is accepted (
684 * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is 684 * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is
685 * zeroed). 685 * zeroed).
686 * 686 *
687 * If there are several maches, the current state is pushed to the 687 * If there are several maches, the current state is pushed to the
688 * ns->pstates. 688 * ns->pstates.
689 * 689 *
@@ -692,7 +692,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
692 * In such situation the function is called with 'flag' != 0, and the 692 * In such situation the function is called with 'flag' != 0, and the
693 * operation is searched using the following pattern: 693 * operation is searched using the following pattern:
694 * ns->pstates[0], ... ns->pstates[ns->npstates], <address input> 694 * ns->pstates[0], ... ns->pstates[ns->npstates], <address input>
695 * 695 *
696 * It is supposed that this pattern must either match one operation on 696 * It is supposed that this pattern must either match one operation on
697 * none. There can't be ambiguity in that case. 697 * none. There can't be ambiguity in that case.
698 * 698 *
@@ -711,15 +711,15 @@ find_operation(struct nandsim *ns, uint32_t flag)
711{ 711{
712 int opsfound = 0; 712 int opsfound = 0;
713 int i, j, idx = 0; 713 int i, j, idx = 0;
714 714
715 for (i = 0; i < NS_OPER_NUM; i++) { 715 for (i = 0; i < NS_OPER_NUM; i++) {
716 716
717 int found = 1; 717 int found = 1;
718 718
719 if (!(ns->options & ops[i].reqopts)) 719 if (!(ns->options & ops[i].reqopts))
720 /* Ignore operations we can't perform */ 720 /* Ignore operations we can't perform */
721 continue; 721 continue;
722 722
723 if (flag) { 723 if (flag) {
724 if (!(ops[i].states[ns->npstates] & STATE_ADDR_MASK)) 724 if (!(ops[i].states[ns->npstates] & STATE_ADDR_MASK))
725 continue; 725 continue;
@@ -728,7 +728,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
728 continue; 728 continue;
729 } 729 }
730 730
731 for (j = 0; j < ns->npstates; j++) 731 for (j = 0; j < ns->npstates; j++)
732 if (NS_STATE(ops[i].states[j]) != NS_STATE(ns->pstates[j]) 732 if (NS_STATE(ops[i].states[j]) != NS_STATE(ns->pstates[j])
733 && (ns->options & ops[idx].reqopts)) { 733 && (ns->options & ops[idx].reqopts)) {
734 found = 0; 734 found = 0;
@@ -745,7 +745,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
745 /* Exact match */ 745 /* Exact match */
746 ns->op = &ops[idx].states[0]; 746 ns->op = &ops[idx].states[0];
747 if (flag) { 747 if (flag) {
748 /* 748 /*
749 * In this case the find_operation function was 749 * In this case the find_operation function was
750 * called when address has just began input. But it isn't 750 * called when address has just began input. But it isn't
751 * yet fully input and the current state must 751 * yet fully input and the current state must
@@ -763,7 +763,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
763 idx, get_state_name(ns->state), get_state_name(ns->nxstate)); 763 idx, get_state_name(ns->state), get_state_name(ns->nxstate));
764 return 0; 764 return 0;
765 } 765 }
766 766
767 if (opsfound == 0) { 767 if (opsfound == 0) {
768 /* Nothing was found. Try to ignore previous commands (if any) and search again */ 768 /* Nothing was found. Try to ignore previous commands (if any) and search again */
769 if (ns->npstates != 0) { 769 if (ns->npstates != 0) {
@@ -777,13 +777,13 @@ find_operation(struct nandsim *ns, uint32_t flag)
777 switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); 777 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
778 return -2; 778 return -2;
779 } 779 }
780 780
781 if (flag) { 781 if (flag) {
782 /* This shouldn't happen */ 782 /* This shouldn't happen */
783 NS_DBG("find_operation: BUG, operation must be known if address is input\n"); 783 NS_DBG("find_operation: BUG, operation must be known if address is input\n");
784 return -2; 784 return -2;
785 } 785 }
786 786
787 NS_DBG("find_operation: there is still ambiguity\n"); 787 NS_DBG("find_operation: there is still ambiguity\n");
788 788
789 ns->pstates[ns->npstates++] = ns->state; 789 ns->pstates[ns->npstates++] = ns->state;
@@ -803,7 +803,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
803 int busdiv = ns->busw == 8 ? 1 : 2; 803 int busdiv = ns->busw == 8 ? 1 : 2;
804 804
805 action &= ACTION_MASK; 805 action &= ACTION_MASK;
806 806
807 /* Check that page address input is correct */ 807 /* Check that page address input is correct */
808 if (action != ACTION_SECERASE && ns->regs.row >= ns->geom.pgnum) { 808 if (action != ACTION_SECERASE && ns->regs.row >= ns->geom.pgnum) {
809 NS_WARN("do_state_action: wrong page number (%#x)\n", ns->regs.row); 809 NS_WARN("do_state_action: wrong page number (%#x)\n", ns->regs.row);
@@ -827,14 +827,14 @@ do_state_action(struct nandsim *ns, uint32_t action)
827 827
828 NS_DBG("do_state_action: (ACTION_CPY:) copy %d bytes to int buf, raw offset %d\n", 828 NS_DBG("do_state_action: (ACTION_CPY:) copy %d bytes to int buf, raw offset %d\n",
829 num, NS_RAW_OFFSET(ns) + ns->regs.off); 829 num, NS_RAW_OFFSET(ns) + ns->regs.off);
830 830
831 if (ns->regs.off == 0) 831 if (ns->regs.off == 0)
832 NS_LOG("read page %d\n", ns->regs.row); 832 NS_LOG("read page %d\n", ns->regs.row);
833 else if (ns->regs.off < ns->geom.pgsz) 833 else if (ns->regs.off < ns->geom.pgsz)
834 NS_LOG("read page %d (second half)\n", ns->regs.row); 834 NS_LOG("read page %d (second half)\n", ns->regs.row);
835 else 835 else
836 NS_LOG("read OOB of page %d\n", ns->regs.row); 836 NS_LOG("read OOB of page %d\n", ns->regs.row);
837 837
838 NS_UDELAY(access_delay); 838 NS_UDELAY(access_delay);
839 NS_UDELAY(input_cycle * ns->geom.pgsz / 1000 / busdiv); 839 NS_UDELAY(input_cycle * ns->geom.pgsz / 1000 / busdiv);
840 840
@@ -844,30 +844,30 @@ do_state_action(struct nandsim *ns, uint32_t action)
844 /* 844 /*
845 * Erase sector. 845 * Erase sector.
846 */ 846 */
847 847
848 if (ns->lines.wp) { 848 if (ns->lines.wp) {
849 NS_ERR("do_state_action: device is write-protected, ignore sector erase\n"); 849 NS_ERR("do_state_action: device is write-protected, ignore sector erase\n");
850 return -1; 850 return -1;
851 } 851 }
852 852
853 if (ns->regs.row >= ns->geom.pgnum - ns->geom.pgsec 853 if (ns->regs.row >= ns->geom.pgnum - ns->geom.pgsec
854 || (ns->regs.row & ~(ns->geom.secsz - 1))) { 854 || (ns->regs.row & ~(ns->geom.secsz - 1))) {
855 NS_ERR("do_state_action: wrong sector address (%#x)\n", ns->regs.row); 855 NS_ERR("do_state_action: wrong sector address (%#x)\n", ns->regs.row);
856 return -1; 856 return -1;
857 } 857 }
858 858
859 ns->regs.row = (ns->regs.row << 859 ns->regs.row = (ns->regs.row <<
860 8 * (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) | ns->regs.column; 860 8 * (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) | ns->regs.column;
861 ns->regs.column = 0; 861 ns->regs.column = 0;
862 862
863 NS_DBG("do_state_action: erase sector at address %#x, off = %d\n", 863 NS_DBG("do_state_action: erase sector at address %#x, off = %d\n",
864 ns->regs.row, NS_RAW_OFFSET(ns)); 864 ns->regs.row, NS_RAW_OFFSET(ns));
865 NS_LOG("erase sector %d\n", ns->regs.row >> (ns->geom.secshift - ns->geom.pgshift)); 865 NS_LOG("erase sector %d\n", ns->regs.row >> (ns->geom.secshift - ns->geom.pgshift));
866 866
867 memset(ns->mem.byte + NS_RAW_OFFSET(ns), 0xFF, ns->geom.secszoob); 867 memset(ns->mem.byte + NS_RAW_OFFSET(ns), 0xFF, ns->geom.secszoob);
868 868
869 NS_MDELAY(erase_delay); 869 NS_MDELAY(erase_delay);
870 870
871 break; 871 break;
872 872
873 case ACTION_PRGPAGE: 873 case ACTION_PRGPAGE:
@@ -893,12 +893,12 @@ do_state_action(struct nandsim *ns, uint32_t action)
893 NS_DBG("do_state_action: copy %d bytes from int buf to (%#x, %#x), raw off = %d\n", 893 NS_DBG("do_state_action: copy %d bytes from int buf to (%#x, %#x), raw off = %d\n",
894 num, ns->regs.row, ns->regs.column, NS_RAW_OFFSET(ns) + ns->regs.off); 894 num, ns->regs.row, ns->regs.column, NS_RAW_OFFSET(ns) + ns->regs.off);
895 NS_LOG("programm page %d\n", ns->regs.row); 895 NS_LOG("programm page %d\n", ns->regs.row);
896 896
897 NS_UDELAY(programm_delay); 897 NS_UDELAY(programm_delay);
898 NS_UDELAY(output_cycle * ns->geom.pgsz / 1000 / busdiv); 898 NS_UDELAY(output_cycle * ns->geom.pgsz / 1000 / busdiv);
899 899
900 break; 900 break;
901 901
902 case ACTION_ZEROOFF: 902 case ACTION_ZEROOFF:
903 NS_DBG("do_state_action: set internal offset to 0\n"); 903 NS_DBG("do_state_action: set internal offset to 0\n");
904 ns->regs.off = 0; 904 ns->regs.off = 0;
@@ -918,7 +918,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
918 NS_DBG("do_state_action: set internal offset to %d\n", ns->geom.pgsz); 918 NS_DBG("do_state_action: set internal offset to %d\n", ns->geom.pgsz);
919 ns->regs.off = ns->geom.pgsz; 919 ns->regs.off = ns->geom.pgsz;
920 break; 920 break;
921 921
922 default: 922 default:
923 NS_DBG("do_state_action: BUG! unknown action\n"); 923 NS_DBG("do_state_action: BUG! unknown action\n");
924 } 924 }
@@ -937,7 +937,7 @@ switch_state(struct nandsim *ns)
937 * The current operation have already been identified. 937 * The current operation have already been identified.
938 * Just follow the states chain. 938 * Just follow the states chain.
939 */ 939 */
940 940
941 ns->stateidx += 1; 941 ns->stateidx += 1;
942 ns->state = ns->nxstate; 942 ns->state = ns->nxstate;
943 ns->nxstate = ns->op[ns->stateidx + 1]; 943 ns->nxstate = ns->op[ns->stateidx + 1];
@@ -951,14 +951,14 @@ switch_state(struct nandsim *ns)
951 switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); 951 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
952 return; 952 return;
953 } 953 }
954 954
955 } else { 955 } else {
956 /* 956 /*
957 * We don't yet know which operation we perform. 957 * We don't yet know which operation we perform.
958 * Try to identify it. 958 * Try to identify it.
959 */ 959 */
960 960
961 /* 961 /*
962 * The only event causing the switch_state function to 962 * The only event causing the switch_state function to
963 * be called with yet unknown operation is new command. 963 * be called with yet unknown operation is new command.
964 */ 964 */
@@ -987,7 +987,7 @@ switch_state(struct nandsim *ns)
987 */ 987 */
988 988
989 u_char status = NS_STATUS_OK(ns); 989 u_char status = NS_STATUS_OK(ns);
990 990
991 /* In case of data states, see if all bytes were input/output */ 991 /* In case of data states, see if all bytes were input/output */
992 if ((ns->state & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) 992 if ((ns->state & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK))
993 && ns->regs.count != ns->regs.num) { 993 && ns->regs.count != ns->regs.num) {
@@ -995,17 +995,17 @@ switch_state(struct nandsim *ns)
995 ns->regs.num - ns->regs.count); 995 ns->regs.num - ns->regs.count);
996 status = NS_STATUS_FAILED(ns); 996 status = NS_STATUS_FAILED(ns);
997 } 997 }
998 998
999 NS_DBG("switch_state: operation complete, switch to STATE_READY state\n"); 999 NS_DBG("switch_state: operation complete, switch to STATE_READY state\n");
1000 1000
1001 switch_to_ready_state(ns, status); 1001 switch_to_ready_state(ns, status);
1002 1002
1003 return; 1003 return;
1004 } else if (ns->nxstate & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) { 1004 } else if (ns->nxstate & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) {
1005 /* 1005 /*
1006 * If the next state is data input/output, switch to it now 1006 * If the next state is data input/output, switch to it now
1007 */ 1007 */
1008 1008
1009 ns->state = ns->nxstate; 1009 ns->state = ns->nxstate;
1010 ns->nxstate = ns->op[++ns->stateidx + 1]; 1010 ns->nxstate = ns->op[++ns->stateidx + 1];
1011 ns->regs.num = ns->regs.count = 0; 1011 ns->regs.num = ns->regs.count = 0;
@@ -1023,16 +1023,16 @@ switch_state(struct nandsim *ns)
1023 case STATE_DATAOUT: 1023 case STATE_DATAOUT:
1024 ns->regs.num = ns->geom.pgszoob - ns->regs.off - ns->regs.column; 1024 ns->regs.num = ns->geom.pgszoob - ns->regs.off - ns->regs.column;
1025 break; 1025 break;
1026 1026
1027 case STATE_DATAOUT_ID: 1027 case STATE_DATAOUT_ID:
1028 ns->regs.num = ns->geom.idbytes; 1028 ns->regs.num = ns->geom.idbytes;
1029 break; 1029 break;
1030 1030
1031 case STATE_DATAOUT_STATUS: 1031 case STATE_DATAOUT_STATUS:
1032 case STATE_DATAOUT_STATUS_M: 1032 case STATE_DATAOUT_STATUS_M:
1033 ns->regs.count = ns->regs.num = 0; 1033 ns->regs.count = ns->regs.num = 0;
1034 break; 1034 break;
1035 1035
1036 default: 1036 default:
1037 NS_ERR("switch_state: BUG! unknown data state\n"); 1037 NS_ERR("switch_state: BUG! unknown data state\n");
1038 } 1038 }
@@ -1044,16 +1044,16 @@ switch_state(struct nandsim *ns)
1044 */ 1044 */
1045 1045
1046 ns->regs.count = 0; 1046 ns->regs.count = 0;
1047 1047
1048 switch (NS_STATE(ns->nxstate)) { 1048 switch (NS_STATE(ns->nxstate)) {
1049 case STATE_ADDR_PAGE: 1049 case STATE_ADDR_PAGE:
1050 ns->regs.num = ns->geom.pgaddrbytes; 1050 ns->regs.num = ns->geom.pgaddrbytes;
1051 1051
1052 break; 1052 break;
1053 case STATE_ADDR_SEC: 1053 case STATE_ADDR_SEC:
1054 ns->regs.num = ns->geom.secaddrbytes; 1054 ns->regs.num = ns->geom.secaddrbytes;
1055 break; 1055 break;
1056 1056
1057 case STATE_ADDR_ZERO: 1057 case STATE_ADDR_ZERO:
1058 ns->regs.num = 1; 1058 ns->regs.num = 1;
1059 break; 1059 break;
@@ -1062,7 +1062,7 @@ switch_state(struct nandsim *ns)
1062 NS_ERR("switch_state: BUG! unknown address state\n"); 1062 NS_ERR("switch_state: BUG! unknown address state\n");
1063 } 1063 }
1064 } else { 1064 } else {
1065 /* 1065 /*
1066 * Just reset internal counters. 1066 * Just reset internal counters.
1067 */ 1067 */
1068 1068
@@ -1184,7 +1184,7 @@ ns_nand_read_byte(struct mtd_info *mtd)
1184 default: 1184 default:
1185 BUG(); 1185 BUG();
1186 } 1186 }
1187 1187
1188 if (ns->regs.count == ns->regs.num) { 1188 if (ns->regs.count == ns->regs.num) {
1189 NS_DBG("read_byte: all bytes were read\n"); 1189 NS_DBG("read_byte: all bytes were read\n");
1190 1190
@@ -1201,9 +1201,9 @@ ns_nand_read_byte(struct mtd_info *mtd)
1201 } 1201 }
1202 else if (NS_STATE(ns->nxstate) == STATE_READY) 1202 else if (NS_STATE(ns->nxstate) == STATE_READY)
1203 switch_state(ns); 1203 switch_state(ns);
1204 1204
1205 } 1205 }
1206 1206
1207 return outb; 1207 return outb;
1208} 1208}
1209 1209
@@ -1211,7 +1211,7 @@ static void
1211ns_nand_write_byte(struct mtd_info *mtd, u_char byte) 1211ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1212{ 1212{
1213 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; 1213 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
1214 1214
1215 /* Sanity and correctness checks */ 1215 /* Sanity and correctness checks */
1216 if (!ns->lines.ce) { 1216 if (!ns->lines.ce) {
1217 NS_ERR("write_byte: chip is disabled, ignore write\n"); 1217 NS_ERR("write_byte: chip is disabled, ignore write\n");
@@ -1221,7 +1221,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1221 NS_ERR("write_byte: ALE and CLE pins are high simultaneously, ignore write\n"); 1221 NS_ERR("write_byte: ALE and CLE pins are high simultaneously, ignore write\n");
1222 return; 1222 return;
1223 } 1223 }
1224 1224
1225 if (ns->lines.cle == 1) { 1225 if (ns->lines.cle == 1) {
1226 /* 1226 /*
1227 * The byte written is a command. 1227 * The byte written is a command.
@@ -1233,7 +1233,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1233 return; 1233 return;
1234 } 1234 }
1235 1235
1236 /* 1236 /*
1237 * Chip might still be in STATE_DATAOUT 1237 * Chip might still be in STATE_DATAOUT
1238 * (if OPT_AUTOINCR feature is supported), STATE_DATAOUT_STATUS or 1238 * (if OPT_AUTOINCR feature is supported), STATE_DATAOUT_STATUS or
1239 * STATE_DATAOUT_STATUS_M state. If so, switch state. 1239 * STATE_DATAOUT_STATUS_M state. If so, switch state.
@@ -1254,13 +1254,13 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1254 "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate)); 1254 "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
1255 switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); 1255 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
1256 } 1256 }
1257 1257
1258 /* Check that the command byte is correct */ 1258 /* Check that the command byte is correct */
1259 if (check_command(byte)) { 1259 if (check_command(byte)) {
1260 NS_ERR("write_byte: unknown command %#x\n", (uint)byte); 1260 NS_ERR("write_byte: unknown command %#x\n", (uint)byte);
1261 return; 1261 return;
1262 } 1262 }
1263 1263
1264 NS_DBG("command byte corresponding to %s state accepted\n", 1264 NS_DBG("command byte corresponding to %s state accepted\n",
1265 get_state_name(get_state_by_command(byte))); 1265 get_state_name(get_state_by_command(byte)));
1266 ns->regs.command = byte; 1266 ns->regs.command = byte;
@@ -1277,12 +1277,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1277 1277
1278 if (find_operation(ns, 1) < 0) 1278 if (find_operation(ns, 1) < 0)
1279 return; 1279 return;
1280 1280
1281 if ((ns->state & ACTION_MASK) && do_state_action(ns, ns->state) < 0) { 1281 if ((ns->state & ACTION_MASK) && do_state_action(ns, ns->state) < 0) {
1282 switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); 1282 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
1283 return; 1283 return;
1284 } 1284 }
1285 1285
1286 ns->regs.count = 0; 1286 ns->regs.count = 0;
1287 switch (NS_STATE(ns->nxstate)) { 1287 switch (NS_STATE(ns->nxstate)) {
1288 case STATE_ADDR_PAGE: 1288 case STATE_ADDR_PAGE:
@@ -1306,7 +1306,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1306 switch_to_ready_state(ns, NS_STATUS_FAILED(ns)); 1306 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
1307 return; 1307 return;
1308 } 1308 }
1309 1309
1310 /* Check if this is expected byte */ 1310 /* Check if this is expected byte */
1311 if (ns->regs.count == ns->regs.num) { 1311 if (ns->regs.count == ns->regs.num) {
1312 NS_ERR("write_byte: no more address bytes expected\n"); 1312 NS_ERR("write_byte: no more address bytes expected\n");
@@ -1325,12 +1325,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
1325 NS_DBG("address (%#x, %#x) is accepted\n", ns->regs.row, ns->regs.column); 1325 NS_DBG("address (%#x, %#x) is accepted\n", ns->regs.row, ns->regs.column);
1326 switch_state(ns); 1326 switch_state(ns);
1327 } 1327 }
1328 1328
1329 } else { 1329 } else {
1330 /* 1330 /*
1331 * The byte written is an input data. 1331 * The byte written is an input data.
1332 */ 1332 */
1333 1333
1334 /* Check that chip is expecting data input */ 1334 /* Check that chip is expecting data input */
1335 if (!(ns->state & STATE_DATAIN_MASK)) { 1335 if (!(ns->state & STATE_DATAIN_MASK)) {
1336 NS_ERR("write_byte: data input (%#x) isn't expected, state is %s, " 1336 NS_ERR("write_byte: data input (%#x) isn't expected, state is %s, "
@@ -1372,7 +1372,7 @@ ns_nand_read_word(struct mtd_info *mtd)
1372 struct nand_chip *chip = (struct nand_chip *)mtd->priv; 1372 struct nand_chip *chip = (struct nand_chip *)mtd->priv;
1373 1373
1374 NS_DBG("read_word\n"); 1374 NS_DBG("read_word\n");
1375 1375
1376 return chip->read_byte(mtd) | (chip->read_byte(mtd) << 8); 1376 return chip->read_byte(mtd) | (chip->read_byte(mtd) << 8);
1377} 1377}
1378 1378
@@ -1380,14 +1380,14 @@ static void
1380ns_nand_write_word(struct mtd_info *mtd, uint16_t word) 1380ns_nand_write_word(struct mtd_info *mtd, uint16_t word)
1381{ 1381{
1382 struct nand_chip *chip = (struct nand_chip *)mtd->priv; 1382 struct nand_chip *chip = (struct nand_chip *)mtd->priv;
1383 1383
1384 NS_DBG("write_word\n"); 1384 NS_DBG("write_word\n");
1385 1385
1386 chip->write_byte(mtd, word & 0xFF); 1386 chip->write_byte(mtd, word & 0xFF);
1387 chip->write_byte(mtd, word >> 8); 1387 chip->write_byte(mtd, word >> 8);
1388} 1388}
1389 1389
1390static void 1390static void
1391ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) 1391ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
1392{ 1392{
1393 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; 1393 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1409,13 +1409,13 @@ ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
1409 1409
1410 memcpy(ns->buf.byte + ns->regs.count, buf, len); 1410 memcpy(ns->buf.byte + ns->regs.count, buf, len);
1411 ns->regs.count += len; 1411 ns->regs.count += len;
1412 1412
1413 if (ns->regs.count == ns->regs.num) { 1413 if (ns->regs.count == ns->regs.num) {
1414 NS_DBG("write_buf: %d bytes were written\n", ns->regs.count); 1414 NS_DBG("write_buf: %d bytes were written\n", ns->regs.count);
1415 } 1415 }
1416} 1416}
1417 1417
1418static void 1418static void
1419ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) 1419ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
1420{ 1420{
1421 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv; 1421 struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1453,7 +1453,7 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
1453 1453
1454 memcpy(buf, ns->buf.byte + ns->regs.count, len); 1454 memcpy(buf, ns->buf.byte + ns->regs.count, len);
1455 ns->regs.count += len; 1455 ns->regs.count += len;
1456 1456
1457 if (ns->regs.count == ns->regs.num) { 1457 if (ns->regs.count == ns->regs.num) {
1458 if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) { 1458 if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) {
1459 ns->regs.count = 0; 1459 ns->regs.count = 0;
@@ -1465,11 +1465,11 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
1465 else if (NS_STATE(ns->nxstate) == STATE_READY) 1465 else if (NS_STATE(ns->nxstate) == STATE_READY)
1466 switch_state(ns); 1466 switch_state(ns);
1467 } 1467 }
1468 1468
1469 return; 1469 return;
1470} 1470}
1471 1471
1472static int 1472static int
1473ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) 1473ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
1474{ 1474{
1475 ns_nand_read_buf(mtd, (u_char *)&ns_verify_buf[0], len); 1475 ns_nand_read_buf(mtd, (u_char *)&ns_verify_buf[0], len);
@@ -1496,7 +1496,7 @@ int __init ns_init_module(void)
1496 NS_ERR("wrong bus width (%d), use only 8 or 16\n", bus_width); 1496 NS_ERR("wrong bus width (%d), use only 8 or 16\n", bus_width);
1497 return -EINVAL; 1497 return -EINVAL;
1498 } 1498 }
1499 1499
1500 /* Allocate and initialize mtd_info, nand_chip and nandsim structures */ 1500 /* Allocate and initialize mtd_info, nand_chip and nandsim structures */
1501 nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip) 1501 nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
1502 + sizeof(struct nandsim), GFP_KERNEL); 1502 + sizeof(struct nandsim), GFP_KERNEL);
@@ -1509,7 +1509,7 @@ int __init ns_init_module(void)
1509 chip = (struct nand_chip *)(nsmtd + 1); 1509 chip = (struct nand_chip *)(nsmtd + 1);
1510 nsmtd->priv = (void *)chip; 1510 nsmtd->priv = (void *)chip;
1511 nand = (struct nandsim *)(chip + 1); 1511 nand = (struct nandsim *)(chip + 1);
1512 chip->priv = (void *)nand; 1512 chip->priv = (void *)nand;
1513 1513
1514 /* 1514 /*
1515 * Register simulator's callbacks. 1515 * Register simulator's callbacks.
@@ -1526,9 +1526,9 @@ int __init ns_init_module(void)
1526 chip->eccmode = NAND_ECC_SOFT; 1526 chip->eccmode = NAND_ECC_SOFT;
1527 chip->options |= NAND_SKIP_BBTSCAN; 1527 chip->options |= NAND_SKIP_BBTSCAN;
1528 1528
1529 /* 1529 /*
1530 * Perform minimum nandsim structure initialization to handle 1530 * Perform minimum nandsim structure initialization to handle
1531 * the initial ID read command correctly 1531 * the initial ID read command correctly
1532 */ 1532 */
1533 if (third_id_byte != 0xFF || fourth_id_byte != 0xFF) 1533 if (third_id_byte != 0xFF || fourth_id_byte != 0xFF)
1534 nand->geom.idbytes = 4; 1534 nand->geom.idbytes = 4;
@@ -1557,7 +1557,7 @@ int __init ns_init_module(void)
1557 NS_ERR("scan_bbt: can't initialize the nandsim structure\n"); 1557 NS_ERR("scan_bbt: can't initialize the nandsim structure\n");
1558 goto error; 1558 goto error;
1559 } 1559 }
1560 1560
1561 if ((retval = nand_default_bbt(nsmtd)) != 0) { 1561 if ((retval = nand_default_bbt(nsmtd)) != 0) {
1562 free_nandsim(nand); 1562 free_nandsim(nand);
1563 goto error; 1563 goto error;
diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c
index e510a83d7bdb..91a95f34a6ee 100644
--- a/drivers/mtd/nand/ppchameleonevb.c
+++ b/drivers/mtd/nand/ppchameleonevb.c
@@ -6,7 +6,7 @@
6 * Derived from drivers/mtd/nand/edb7312.c 6 * Derived from drivers/mtd/nand/edb7312.c
7 * 7 *
8 * 8 *
9 * $Id: ppchameleonevb.c,v 1.6 2004/11/05 16:07:16 kalev Exp $ 9 * $Id: ppchameleonevb.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as 12 * it under the terms of the GNU General Public License version 2 as
@@ -338,7 +338,7 @@ nand_evb_init:
338 out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFFFFFFF0); 338 out_be32((volatile unsigned*)GPIO0_TSRH, in_be32((volatile unsigned*)GPIO0_TSRH) & 0xFFFFFFF0);
339 out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0x3FFFFFFF); 339 out_be32((volatile unsigned*)GPIO0_TSRL, in_be32((volatile unsigned*)GPIO0_TSRL) & 0x3FFFFFFF);
340 /* enable output driver */ 340 /* enable output driver */
341 out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN | 341 out_be32((volatile unsigned*)GPIO0_TCR, in_be32((volatile unsigned*)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN |
342 NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN); 342 NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN);
343#ifdef USE_READY_BUSY_PIN 343#ifdef USE_READY_BUSY_PIN
344 /* three-state select */ 344 /* three-state select */
@@ -402,7 +402,7 @@ static void __exit ppchameleonevb_cleanup (void)
402 /* Release resources, unregister device(s) */ 402 /* Release resources, unregister device(s) */
403 nand_release (ppchameleon_mtd); 403 nand_release (ppchameleon_mtd);
404 nand_release (ppchameleonevb_mtd); 404 nand_release (ppchameleonevb_mtd);
405 405
406 /* Release iomaps */ 406 /* Release iomaps */
407 this = (struct nand_chip *) &ppchameleon_mtd[1]; 407 this = (struct nand_chip *) &ppchameleon_mtd[1];
408 iounmap((void *) this->IO_ADDR_R; 408 iounmap((void *) this->IO_ADDR_R;
diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c
index 031051cbde76..3a5841c9d950 100644
--- a/drivers/mtd/nand/rtc_from4.c
+++ b/drivers/mtd/nand/rtc_from4.c
@@ -2,11 +2,11 @@
2 * drivers/mtd/nand/rtc_from4.c 2 * drivers/mtd/nand/rtc_from4.c
3 * 3 *
4 * Copyright (C) 2004 Red Hat, Inc. 4 * Copyright (C) 2004 Red Hat, Inc.
5 * 5 *
6 * Derived from drivers/mtd/nand/spia.c 6 * Derived from drivers/mtd/nand/spia.c
7 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) 7 * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
8 * 8 *
9 * $Id: rtc_from4.c,v 1.9 2005/01/24 20:40:11 dmarlin Exp $ 9 * $Id: rtc_from4.c,v 1.10 2005/11/07 11:14:31 gleixner Exp $
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as 12 * it under the terms of the GNU General Public License version 2 as
@@ -14,8 +14,8 @@
14 * 14 *
15 * Overview: 15 * Overview:
16 * This is a device driver for the AG-AND flash device found on the 16 * This is a device driver for the AG-AND flash device found on the
17 * Renesas Technology Corp. Flash ROM 4-slot interface board (FROM_BOARD4), 17 * Renesas Technology Corp. Flash ROM 4-slot interface board (FROM_BOARD4),
18 * which utilizes the Renesas HN29V1G91T-30 part. 18 * which utilizes the Renesas HN29V1G91T-30 part.
19 * This chip is a 1 GBibit (128MiB x 8 bits) AG-AND flash device. 19 * This chip is a 1 GBibit (128MiB x 8 bits) AG-AND flash device.
20 */ 20 */
21 21
@@ -105,9 +105,9 @@ const static struct mtd_partition partition_info[] = {
105}; 105};
106#define NUM_PARTITIONS 1 106#define NUM_PARTITIONS 1
107 107
108/* 108/*
109 * hardware specific flash bbt decriptors 109 * hardware specific flash bbt decriptors
110 * Note: this is to allow debugging by disabling 110 * Note: this is to allow debugging by disabling
111 * NAND_BBT_CREATE and/or NAND_BBT_WRITE 111 * NAND_BBT_CREATE and/or NAND_BBT_WRITE
112 * 112 *
113 */ 113 */
@@ -141,7 +141,7 @@ static struct nand_bbt_descr rtc_from4_bbt_mirror_descr = {
141/* the Reed Solomon control structure */ 141/* the Reed Solomon control structure */
142static struct rs_control *rs_decoder; 142static struct rs_control *rs_decoder;
143 143
144/* 144/*
145 * hardware specific Out Of Band information 145 * hardware specific Out Of Band information
146 */ 146 */
147static struct nand_oobinfo rtc_from4_nand_oobinfo = { 147static struct nand_oobinfo rtc_from4_nand_oobinfo = {
@@ -200,38 +200,38 @@ static uint8_t revbits[256] = {
200 200
201 201
202 202
203/* 203/*
204 * rtc_from4_hwcontrol - hardware specific access to control-lines 204 * rtc_from4_hwcontrol - hardware specific access to control-lines
205 * @mtd: MTD device structure 205 * @mtd: MTD device structure
206 * @cmd: hardware control command 206 * @cmd: hardware control command
207 * 207 *
208 * Address lines (A5 and A4) are used to control Command and Address Latch 208 * Address lines (A5 and A4) are used to control Command and Address Latch
209 * Enable on this board, so set the read/write address appropriately. 209 * Enable on this board, so set the read/write address appropriately.
210 * 210 *
211 * Chip Enable is also controlled by the Chip Select (CS5) and 211 * Chip Enable is also controlled by the Chip Select (CS5) and
212 * Address lines (A24-A22), so no action is required here. 212 * Address lines (A24-A22), so no action is required here.
213 * 213 *
214 */ 214 */
215static void rtc_from4_hwcontrol(struct mtd_info *mtd, int cmd) 215static void rtc_from4_hwcontrol(struct mtd_info *mtd, int cmd)
216{ 216{
217 struct nand_chip* this = (struct nand_chip *) (mtd->priv); 217 struct nand_chip* this = (struct nand_chip *) (mtd->priv);
218 218
219 switch(cmd) { 219 switch(cmd) {
220 220
221 case NAND_CTL_SETCLE: 221 case NAND_CTL_SETCLE:
222 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_CLE); 222 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_CLE);
223 break; 223 break;
224 case NAND_CTL_CLRCLE: 224 case NAND_CTL_CLRCLE:
225 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_CLE); 225 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_CLE);
226 break; 226 break;
227 227
228 case NAND_CTL_SETALE: 228 case NAND_CTL_SETALE:
229 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_ALE); 229 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W | RTC_FROM4_ALE);
230 break; 230 break;
231 case NAND_CTL_CLRALE: 231 case NAND_CTL_CLRALE:
232 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_ALE); 232 this->IO_ADDR_W = (void __iomem *)((unsigned long)this->IO_ADDR_W & ~RTC_FROM4_ALE);
233 break; 233 break;
234 234
235 case NAND_CTL_SETNCE: 235 case NAND_CTL_SETNCE:
236 break; 236 break;
237 case NAND_CTL_CLRNCE: 237 case NAND_CTL_CLRNCE:
@@ -296,7 +296,7 @@ static int rtc_from4_nand_device_ready(struct mtd_info *mtd)
296 * @mtd: MTD device structure 296 * @mtd: MTD device structure
297 * @chip: Chip to select (0 == slot 3, 1 == slot 4) 297 * @chip: Chip to select (0 == slot 3, 1 == slot 4)
298 * 298 *
299 * If there was a sudden loss of power during an erase operation, a 299 * If there was a sudden loss of power during an erase operation, a
300 * "device recovery" operation must be performed when power is restored 300 * "device recovery" operation must be performed when power is restored
301 * to ensure correct operation. This routine performs the required steps 301 * to ensure correct operation. This routine performs the required steps
302 * for the requested chip. 302 * for the requested chip.
@@ -312,7 +312,7 @@ static void deplete(struct mtd_info *mtd, int chip)
312 while (!this->dev_ready(mtd)); 312 while (!this->dev_ready(mtd));
313 313
314 this->select_chip(mtd, chip); 314 this->select_chip(mtd, chip);
315 315
316 /* Send the commands for device recovery, phase 1 */ 316 /* Send the commands for device recovery, phase 1 */
317 this->cmdfunc (mtd, NAND_CMD_DEPLETE1, 0x0000, 0x0000); 317 this->cmdfunc (mtd, NAND_CMD_DEPLETE1, 0x0000, 0x0000);
318 this->cmdfunc (mtd, NAND_CMD_DEPLETE2, -1, -1); 318 this->cmdfunc (mtd, NAND_CMD_DEPLETE2, -1, -1);
@@ -330,7 +330,7 @@ static void deplete(struct mtd_info *mtd, int chip)
330 * @mtd: MTD device structure 330 * @mtd: MTD device structure
331 * @mode: I/O mode; read or write 331 * @mode: I/O mode; read or write
332 * 332 *
333 * enable hardware ECC for data read or write 333 * enable hardware ECC for data read or write
334 * 334 *
335 */ 335 */
336static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode) 336static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode)
@@ -340,7 +340,7 @@ static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode)
340 340
341 switch (mode) { 341 switch (mode) {
342 case NAND_ECC_READ : 342 case NAND_ECC_READ :
343 status = RTC_FROM4_RS_ECC_CTL_CLR 343 status = RTC_FROM4_RS_ECC_CTL_CLR
344 | RTC_FROM4_RS_ECC_CTL_FD_E; 344 | RTC_FROM4_RS_ECC_CTL_FD_E;
345 345
346 *rs_ecc_ctl = status; 346 *rs_ecc_ctl = status;
@@ -353,8 +353,8 @@ static void rtc_from4_enable_hwecc(struct mtd_info *mtd, int mode)
353 break; 353 break;
354 354
355 case NAND_ECC_WRITE : 355 case NAND_ECC_WRITE :
356 status = RTC_FROM4_RS_ECC_CTL_CLR 356 status = RTC_FROM4_RS_ECC_CTL_CLR
357 | RTC_FROM4_RS_ECC_CTL_GEN 357 | RTC_FROM4_RS_ECC_CTL_GEN
358 | RTC_FROM4_RS_ECC_CTL_FD_E; 358 | RTC_FROM4_RS_ECC_CTL_FD_E;
359 359
360 *rs_ecc_ctl = status; 360 *rs_ecc_ctl = status;
@@ -411,7 +411,7 @@ static void rtc_from4_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_c
411static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_char *ecc1, u_char *ecc2) 411static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_char *ecc1, u_char *ecc2)
412{ 412{
413 int i, j, res; 413 int i, j, res;
414 unsigned short status; 414 unsigned short status;
415 uint16_t par[6], syn[6]; 415 uint16_t par[6], syn[6];
416 uint8_t ecc[8]; 416 uint8_t ecc[8];
417 volatile unsigned short *rs_ecc; 417 volatile unsigned short *rs_ecc;
@@ -430,7 +430,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
430 } 430 }
431 431
432 /* convert into 6 10bit syndrome fields */ 432 /* convert into 6 10bit syndrome fields */
433 par[5] = rs_decoder->index_of[(((uint16_t)ecc[0] >> 0) & 0x0ff) | 433 par[5] = rs_decoder->index_of[(((uint16_t)ecc[0] >> 0) & 0x0ff) |
434 (((uint16_t)ecc[1] << 8) & 0x300)]; 434 (((uint16_t)ecc[1] << 8) & 0x300)];
435 par[4] = rs_decoder->index_of[(((uint16_t)ecc[1] >> 2) & 0x03f) | 435 par[4] = rs_decoder->index_of[(((uint16_t)ecc[1] >> 2) & 0x03f) |
436 (((uint16_t)ecc[2] << 6) & 0x3c0)]; 436 (((uint16_t)ecc[2] << 6) & 0x3c0)];
@@ -456,7 +456,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
456 /* Let the library code do its magic.*/ 456 /* Let the library code do its magic.*/
457 res = decode_rs8(rs_decoder, (uint8_t *)buf, par, 512, syn, 0, NULL, 0xff, NULL); 457 res = decode_rs8(rs_decoder, (uint8_t *)buf, par, 512, syn, 0, NULL, 0xff, NULL);
458 if (res > 0) { 458 if (res > 0) {
459 DEBUG (MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: " 459 DEBUG (MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: "
460 "ECC corrected %d errors on read\n", res); 460 "ECC corrected %d errors on read\n", res);
461 } 461 }
462 return res; 462 return res;
@@ -470,9 +470,9 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
470 * @state: state or the operation 470 * @state: state or the operation
471 * @status: status code returned from read status 471 * @status: status code returned from read status
472 * @page: startpage inside the chip, must be called with (page & this->pagemask) 472 * @page: startpage inside the chip, must be called with (page & this->pagemask)
473 * 473 *
474 * Perform additional error status checks on erase and write failures 474 * Perform additional error status checks on erase and write failures
475 * to determine if errors are correctable. For this device, correctable 475 * to determine if errors are correctable. For this device, correctable
476 * 1-bit errors on erase and write are considered acceptable. 476 * 1-bit errors on erase and write are considered acceptable.
477 * 477 *
478 * note: see pages 34..37 of data sheet for details. 478 * note: see pages 34..37 of data sheet for details.
@@ -633,7 +633,7 @@ int __init rtc_from4_init (void)
633 633
634#ifdef RTC_FROM4_HWECC 634#ifdef RTC_FROM4_HWECC
635 /* We could create the decoder on demand, if memory is a concern. 635 /* We could create the decoder on demand, if memory is a concern.
636 * This way we have it handy, if an error happens 636 * This way we have it handy, if an error happens
637 * 637 *
638 * Symbolsize is 10 (bits) 638 * Symbolsize is 10 (bits)
639 * Primitve polynomial is x^10+x^3+1 639 * Primitve polynomial is x^10+x^3+1
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 24f4199eaee8..97e9b7892d29 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -19,7 +19,7 @@
19 * 08-Jul-2005 BJD Fix OOPS when no platform data supplied 19 * 08-Jul-2005 BJD Fix OOPS when no platform data supplied
20 * 20-Oct-2005 BJD Fix timing calculation bug 20 * 20-Oct-2005 BJD Fix timing calculation bug
21 * 21 *
22 * $Id: s3c2410.c,v 1.18 2005/10/20 21:22:55 bjd Exp $ 22 * $Id: s3c2410.c,v 1.20 2005/11/07 11:14:31 gleixner Exp $
23 * 23 *
24 * This program is free software; you can redistribute it and/or modify 24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by 25 * it under the terms of the GNU General Public License as published by
@@ -164,7 +164,7 @@ static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max)
164 164
165/* controller setup */ 165/* controller setup */
166 166
167static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, 167static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
168 struct device *dev) 168 struct device *dev)
169{ 169{
170 struct s3c2410_platform_nand *plat = to_nand_plat(dev); 170 struct s3c2410_platform_nand *plat = to_nand_plat(dev);
@@ -186,7 +186,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
186 twrph0 = 8; 186 twrph0 = 8;
187 twrph1 = 8; 187 twrph1 = 8;
188 } 188 }
189 189
190 if (tacls < 0 || twrph0 < 0 || twrph1 < 0) { 190 if (tacls < 0 || twrph0 < 0 || twrph1 < 0) {
191 printk(KERN_ERR PFX "cannot get timings suitable for board\n"); 191 printk(KERN_ERR PFX "cannot get timings suitable for board\n");
192 return -EINVAL; 192 return -EINVAL;
@@ -194,7 +194,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
194 194
195 printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", 195 printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n",
196 tacls, to_ns(tacls, clkrate), 196 tacls, to_ns(tacls, clkrate),
197 twrph0, to_ns(twrph0, clkrate), 197 twrph0, to_ns(twrph0, clkrate),
198 twrph1, to_ns(twrph1, clkrate)); 198 twrph1, to_ns(twrph1, clkrate));
199 199
200 if (!info->is_s3c2440) { 200 if (!info->is_s3c2440) {
@@ -219,7 +219,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
219static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) 219static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
220{ 220{
221 struct s3c2410_nand_info *info; 221 struct s3c2410_nand_info *info;
222 struct s3c2410_nand_mtd *nmtd; 222 struct s3c2410_nand_mtd *nmtd;
223 struct nand_chip *this = mtd->priv; 223 struct nand_chip *this = mtd->priv;
224 void __iomem *reg; 224 void __iomem *reg;
225 unsigned long cur; 225 unsigned long cur;
@@ -252,7 +252,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
252 writel(cur, reg); 252 writel(cur, reg);
253} 253}
254 254
255/* command and control functions 255/* command and control functions
256 * 256 *
257 * Note, these all use tglx's method of changing the IO_ADDR_W field 257 * Note, these all use tglx's method of changing the IO_ADDR_W field
258 * to make the code simpler, and use the nand layer's code to issue the 258 * to make the code simpler, and use the nand layer's code to issue the
@@ -324,7 +324,7 @@ static void s3c2440_nand_hwcontrol(struct mtd_info *mtd, int cmd)
324static int s3c2410_nand_devready(struct mtd_info *mtd) 324static int s3c2410_nand_devready(struct mtd_info *mtd)
325{ 325{
326 struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); 326 struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd);
327 327
328 if (info->is_s3c2440) 328 if (info->is_s3c2440)
329 return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY; 329 return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY;
330 return readb(info->regs + S3C2410_NFSTAT) & S3C2410_NFSTAT_BUSY; 330 return readb(info->regs + S3C2410_NFSTAT) & S3C2410_NFSTAT_BUSY;
@@ -345,7 +345,7 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
345 345
346 if (read_ecc[0] == calc_ecc[0] && 346 if (read_ecc[0] == calc_ecc[0] &&
347 read_ecc[1] == calc_ecc[1] && 347 read_ecc[1] == calc_ecc[1] &&
348 read_ecc[2] == calc_ecc[2]) 348 read_ecc[2] == calc_ecc[2])
349 return 0; 349 return 0;
350 350
351 /* we curently have no method for correcting the error */ 351 /* we curently have no method for correcting the error */
@@ -436,14 +436,14 @@ static int s3c2410_nand_remove(struct device *dev)
436 436
437 dev_set_drvdata(dev, NULL); 437 dev_set_drvdata(dev, NULL);
438 438
439 if (info == NULL) 439 if (info == NULL)
440 return 0; 440 return 0;
441 441
442 /* first thing we need to do is release all our mtds 442 /* first thing we need to do is release all our mtds
443 * and their partitions, then go through freeing the 443 * and their partitions, then go through freeing the
444 * resources used 444 * resources used
445 */ 445 */
446 446
447 if (info->mtds != NULL) { 447 if (info->mtds != NULL) {
448 struct s3c2410_nand_mtd *ptr = info->mtds; 448 struct s3c2410_nand_mtd *ptr = info->mtds;
449 int mtdno; 449 int mtdno;
@@ -507,7 +507,7 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
507 507
508/* s3c2410_nand_init_chip 508/* s3c2410_nand_init_chip
509 * 509 *
510 * init a single instance of an chip 510 * init a single instance of an chip
511*/ 511*/
512 512
513static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, 513static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
@@ -625,7 +625,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
625 dev_err(dev, "cannot reserve register region\n"); 625 dev_err(dev, "cannot reserve register region\n");
626 err = -EIO; 626 err = -EIO;
627 goto exit_error; 627 goto exit_error;
628 } 628 }
629 629
630 dev_dbg(dev, "mapped registers at %p\n", info->regs); 630 dev_dbg(dev, "mapped registers at %p\n", info->regs);
631 631
@@ -659,7 +659,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
659 for (setno = 0; setno < nr_sets; setno++, nmtd++) { 659 for (setno = 0; setno < nr_sets; setno++, nmtd++) {
660 pr_debug("initialising set %d (%p, info %p)\n", 660 pr_debug("initialising set %d (%p, info %p)\n",
661 setno, nmtd, info); 661 setno, nmtd, info);
662 662
663 s3c2410_nand_init_chip(info, nmtd, sets); 663 s3c2410_nand_init_chip(info, nmtd, sets);
664 664
665 nmtd->scan_res = nand_scan(&nmtd->mtd, 665 nmtd->scan_res = nand_scan(&nmtd->mtd,
@@ -672,7 +672,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
672 if (sets != NULL) 672 if (sets != NULL)
673 sets++; 673 sets++;
674 } 674 }
675 675
676 pr_debug("initialised ok\n"); 676 pr_debug("initialised ok\n");
677 return 0; 677 return 0;
678 678
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 6def3d33b060..1924a4f137c7 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * Copyright (C) 2004 Richard Purdie 4 * Copyright (C) 2004 Richard Purdie
5 * 5 *
6 * $Id: sharpsl.c,v 1.6 2005/11/03 11:36:42 rpurdie Exp $ 6 * $Id: sharpsl.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $
7 * 7 *
8 * Based on Sharp's NAND driver sharp_sl.c 8 * Based on Sharp's NAND driver sharp_sl.c
9 * 9 *
@@ -76,14 +76,14 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = {
76 }, 76 },
77}; 77};
78 78
79/* 79/*
80 * hardware specific access to control-lines 80 * hardware specific access to control-lines
81 */ 81 */
82static void 82static void
83sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) 83sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd)
84{ 84{
85 switch (cmd) { 85 switch (cmd) {
86 case NAND_CTL_SETCLE: 86 case NAND_CTL_SETCLE:
87 writeb(readb(FLASHCTL) | FLCLE, FLASHCTL); 87 writeb(readb(FLASHCTL) | FLCLE, FLASHCTL);
88 break; 88 break;
89 case NAND_CTL_CLRCLE: 89 case NAND_CTL_CLRCLE:
@@ -97,10 +97,10 @@ sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd)
97 writeb(readb(FLASHCTL) & ~FLALE, FLASHCTL); 97 writeb(readb(FLASHCTL) & ~FLALE, FLASHCTL);
98 break; 98 break;
99 99
100 case NAND_CTL_SETNCE: 100 case NAND_CTL_SETNCE:
101 writeb(readb(FLASHCTL) & ~(FLCE0|FLCE1), FLASHCTL); 101 writeb(readb(FLASHCTL) & ~(FLCE0|FLCE1), FLASHCTL);
102 break; 102 break;
103 case NAND_CTL_CLRNCE: 103 case NAND_CTL_CLRNCE:
104 writeb(readb(FLASHCTL) | (FLCE0|FLCE1), FLASHCTL); 104 writeb(readb(FLASHCTL) | (FLCE0|FLCE1), FLASHCTL);
105 break; 105 break;
106 } 106 }
@@ -126,8 +126,8 @@ static struct nand_oobinfo akita_oobinfo = {
126 .useecc = MTD_NANDECC_AUTOPLACE, 126 .useecc = MTD_NANDECC_AUTOPLACE,
127 .eccbytes = 24, 127 .eccbytes = 24,
128 .eccpos = { 128 .eccpos = {
129 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11, 129 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
130 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23, 130 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
131 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37}, 131 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
132 .oobfree = { {0x08, 0x09} } 132 .oobfree = { {0x08, 0x09} }
133}; 133};
@@ -177,7 +177,7 @@ sharpsl_nand_init(void)
177 printk ("Unable to allocate SharpSL NAND MTD device structure.\n"); 177 printk ("Unable to allocate SharpSL NAND MTD device structure.\n");
178 return -ENOMEM; 178 return -ENOMEM;
179 } 179 }
180 180
181 /* map physical adress */ 181 /* map physical adress */
182 sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000); 182 sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000);
183 if(!sharpsl_io_base){ 183 if(!sharpsl_io_base){
@@ -185,7 +185,7 @@ sharpsl_nand_init(void)
185 kfree(sharpsl_mtd); 185 kfree(sharpsl_mtd);
186 return -EIO; 186 return -EIO;
187 } 187 }
188 188
189 /* Get pointer to private data */ 189 /* Get pointer to private data */
190 this = (struct nand_chip *) (&sharpsl_mtd[1]); 190 this = (struct nand_chip *) (&sharpsl_mtd[1]);
191 191
@@ -211,7 +211,7 @@ sharpsl_nand_init(void)
211 this->chip_delay = 15; 211 this->chip_delay = 15;
212 /* set eccmode using hardware ECC */ 212 /* set eccmode using hardware ECC */
213 this->eccmode = NAND_ECC_HW3_256; 213 this->eccmode = NAND_ECC_HW3_256;
214 this->badblock_pattern = &sharpsl_bbt; 214 this->badblock_pattern = &sharpsl_bbt;
215 if (machine_is_akita() || machine_is_borzoi()) { 215 if (machine_is_akita() || machine_is_borzoi()) {
216 this->badblock_pattern = &sharpsl_akita_bbt; 216 this->badblock_pattern = &sharpsl_akita_bbt;
217 this->autooob = &akita_oobinfo; 217 this->autooob = &akita_oobinfo;
@@ -232,7 +232,7 @@ sharpsl_nand_init(void)
232 sharpsl_mtd->name = "sharpsl-nand"; 232 sharpsl_mtd->name = "sharpsl-nand";
233 nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, 233 nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes,
234 &sharpsl_partition_info, 0); 234 &sharpsl_partition_info, 0);
235 235
236 if (nr_partitions <= 0) { 236 if (nr_partitions <= 0) {
237 nr_partitions = DEFAULT_NUM_PARTITIONS; 237 nr_partitions = DEFAULT_NUM_PARTITIONS;
238 sharpsl_partition_info = sharpsl_nand_default_partition_info; 238 sharpsl_partition_info = sharpsl_nand_default_partition_info;
diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c
index b777c412b758..32541cbb0103 100644
--- a/drivers/mtd/nand/spia.c
+++ b/drivers/mtd/nand/spia.c
@@ -8,7 +8,7 @@
8 * to controllines (due to change in nand.c) 8 * to controllines (due to change in nand.c)
9 * page_cache added 9 * page_cache added
10 * 10 *
11 * $Id: spia.c,v 1.24 2004/11/04 12:53:10 gleixner Exp $ 11 * $Id: spia.c,v 1.25 2005/11/07 11:14:31 gleixner Exp $
12 * 12 *
13 * This program is free software; you can redistribute it and/or modify 13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as 14 * it under the terms of the GNU General Public License version 2 as
@@ -82,7 +82,7 @@ const static struct mtd_partition partition_info[] = {
82#define NUM_PARTITIONS 2 82#define NUM_PARTITIONS 2
83 83
84 84
85/* 85/*
86 * hardware specific access to control-lines 86 * hardware specific access to control-lines
87*/ 87*/
88static void spia_hwcontrol(struct mtd_info *mtd, int cmd){ 88static void spia_hwcontrol(struct mtd_info *mtd, int cmd){
@@ -137,7 +137,7 @@ int __init spia_init (void)
137 /* Set address of hardware control function */ 137 /* Set address of hardware control function */
138 this->hwcontrol = spia_hwcontrol; 138 this->hwcontrol = spia_hwcontrol;
139 /* 15 us command delay time */ 139 /* 15 us command delay time */
140 this->chip_delay = 15; 140 this->chip_delay = 15;
141 141
142 /* Scan to find existence of the device */ 142 /* Scan to find existence of the device */
143 if (nand_scan (spia_mtd, 1)) { 143 if (nand_scan (spia_mtd, 1)) {
diff --git a/drivers/mtd/nand/toto.c b/drivers/mtd/nand/toto.c
index 52c808fb5fa9..7609c43cb3ec 100644
--- a/drivers/mtd/nand/toto.c
+++ b/drivers/mtd/nand/toto.c
@@ -15,7 +15,7 @@
15 * This is a device driver for the NAND flash device found on the 15 * This is a device driver for the NAND flash device found on the
16 * TI fido board. It supports 32MiB and 64MiB cards 16 * TI fido board. It supports 32MiB and 64MiB cards
17 * 17 *
18 * $Id: toto.c,v 1.4 2004/10/05 13:50:20 gleixner Exp $ 18 * $Id: toto.c,v 1.5 2005/11/07 11:14:31 gleixner Exp $
19 */ 19 */
20 20
21#include <linux/slab.h> 21#include <linux/slab.h>
@@ -57,7 +57,7 @@ static unsigned long toto_io_base = OMAP_FLASH_1_BASE;
57#endif 57#endif
58#define T_NAND_CTL_SETNCE(iob) gpiosetout(NAND_NCE, 0) 58#define T_NAND_CTL_SETNCE(iob) gpiosetout(NAND_NCE, 0)
59#define T_NAND_CTL_CLRNCE(iob) gpiosetout(NAND_NCE, NAND_NCE) 59#define T_NAND_CTL_CLRNCE(iob) gpiosetout(NAND_NCE, NAND_NCE)
60 60
61/* 61/*
62 * Define partitions for flash devices 62 * Define partitions for flash devices
63 */ 63 */
@@ -91,7 +91,7 @@ static struct mtd_partition partition_info32M[] = {
91 91
92#define NUM_PARTITIONS32M 3 92#define NUM_PARTITIONS32M 3
93#define NUM_PARTITIONS64M 4 93#define NUM_PARTITIONS64M 4
94/* 94/*
95 * hardware specific access to control-lines 95 * hardware specific access to control-lines
96*/ 96*/
97 97
@@ -146,7 +146,7 @@ int __init toto_init (void)
146 this->hwcontrol = toto_hwcontrol; 146 this->hwcontrol = toto_hwcontrol;
147 this->dev_ready = NULL; 147 this->dev_ready = NULL;
148 /* 25 us command delay time */ 148 /* 25 us command delay time */
149 this->chip_delay = 30; 149 this->chip_delay = 30;
150 this->eccmode = NAND_ECC_SOFT; 150 this->eccmode = NAND_ECC_SOFT;
151 151
152 /* Scan to find existance of the device */ 152 /* Scan to find existance of the device */
@@ -157,10 +157,10 @@ int __init toto_init (void)
157 157
158 /* Register the partitions */ 158 /* Register the partitions */
159 switch(toto_mtd->size){ 159 switch(toto_mtd->size){
160 case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break; 160 case SZ_64M: add_mtd_partitions(toto_mtd, partition_info64M, NUM_PARTITIONS64M); break;
161 case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break; 161 case SZ_32M: add_mtd_partitions(toto_mtd, partition_info32M, NUM_PARTITIONS32M); break;
162 default: { 162 default: {
163 printk (KERN_WARNING "Unsupported Nand device\n"); 163 printk (KERN_WARNING "Unsupported Nand device\n");
164 err = -ENXIO; 164 err = -ENXIO;
165 goto out_buf; 165 goto out_buf;
166 } 166 }
@@ -170,9 +170,9 @@ int __init toto_init (void)
170 archflashwp(0,0); /* open up flash for writing */ 170 archflashwp(0,0); /* open up flash for writing */
171 171
172 goto out; 172 goto out;
173 173
174out_buf: 174out_buf:
175 kfree (this->data_buf); 175 kfree (this->data_buf);
176out_mtd: 176out_mtd:
177 kfree (toto_mtd); 177 kfree (toto_mtd);
178out: 178out:
@@ -194,7 +194,7 @@ static void __exit toto_cleanup (void)
194 194
195 /* stop flash writes */ 195 /* stop flash writes */
196 archflashwp(0,1); 196 archflashwp(0,1);
197 197
198 /* release gpios to system */ 198 /* release gpios to system */
199 gpiorelease(NAND_MASK); 199 gpiorelease(NAND_MASK);
200} 200}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 02:48:43 -0500