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-rw-r--r--drivers/mtd/chips/cfi_probe.c6
-rw-r--r--include/linux/mtd/cfi.h18
2 files changed, 20 insertions, 4 deletions
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
index 90eb30e06b7c..d65ccdebbda4 100644
--- a/drivers/mtd/chips/cfi_probe.c
+++ b/drivers/mtd/chips/cfi_probe.c
@@ -1,7 +1,7 @@
1/* 1/*
2 Common Flash Interface probe code. 2 Common Flash Interface probe code.
3 (C) 2000 Red Hat. GPL'd. 3 (C) 2000 Red Hat. GPL'd.
4 $Id: cfi_probe.c,v 1.84 2005/11/07 11:14:23 gleixner Exp $ 4 $Id: cfi_probe.c,v 1.85 2005/11/15 23:28:17 tpoynor Exp $
5*/ 5*/
6 6
7#include <linux/config.h> 7#include <linux/config.h>
@@ -230,8 +230,8 @@ static int __xipram cfi_chip_setup(struct map_info *map,
230 cfi_send_gen_cmd(0xaa, 0x555, base, map, cfi, cfi->device_type, NULL); 230 cfi_send_gen_cmd(0xaa, 0x555, base, map, cfi, cfi->device_type, NULL);
231 cfi_send_gen_cmd(0x55, 0x2aa, base, map, cfi, cfi->device_type, NULL); 231 cfi_send_gen_cmd(0x55, 0x2aa, base, map, cfi, cfi->device_type, NULL);
232 cfi_send_gen_cmd(0x90, 0x555, base, map, cfi, cfi->device_type, NULL); 232 cfi_send_gen_cmd(0x90, 0x555, base, map, cfi, cfi->device_type, NULL);
233 cfi->mfr = cfi_read_query(map, base); 233 cfi->mfr = cfi_read_query16(map, base);
234 cfi->id = cfi_read_query(map, base + ofs_factor); 234 cfi->id = cfi_read_query16(map, base + ofs_factor);
235 235
236 /* Put it back into Read Mode */ 236 /* Put it back into Read Mode */
237 cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); 237 cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 3c9ea4b7adda..23a568910341 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -1,7 +1,7 @@
1 1
2/* Common Flash Interface structures 2/* Common Flash Interface structures
3 * See http://support.intel.com/design/flash/technote/index.htm 3 * See http://support.intel.com/design/flash/technote/index.htm
4 * $Id: cfi.h,v 1.56 2005/11/07 11:14:54 gleixner Exp $ 4 * $Id: cfi.h,v 1.57 2005/11/15 23:28:17 tpoynor Exp $
5 */ 5 */
6 6
7#ifndef __MTD_CFI_H__ 7#ifndef __MTD_CFI_H__
@@ -426,6 +426,22 @@ static inline uint8_t cfi_read_query(struct map_info *map, uint32_t addr)
426 } 426 }
427} 427}
428 428
429static inline uint16_t cfi_read_query16(struct map_info *map, uint32_t addr)
430{
431 map_word val = map_read(map, addr);
432
433 if (map_bankwidth_is_1(map)) {
434 return val.x[0] & 0xff;
435 } else if (map_bankwidth_is_2(map)) {
436 return cfi16_to_cpu(val.x[0]);
437 } else {
438 /* No point in a 64-bit byteswap since that would just be
439 swapping the responses from different chips, and we are
440 only interested in one chip (a representative sample) */
441 return cfi32_to_cpu(val.x[0]);
442 }
443}
444
429static inline void cfi_udelay(int us) 445static inline void cfi_udelay(int us)
430{ 446{
431 if (us >= 1000) { 447 if (us >= 1000) {