aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ide
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/Kconfig9
-rw-r--r--drivers/ide/pci/Makefile1
-rw-r--r--drivers/ide/pci/it8172.c307
3 files changed, 0 insertions, 317 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index abcabb295592..0c68d0f0d8e5 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -614,15 +614,6 @@ config BLK_DEV_PIIX
614 the kernel to change PIO, DMA and UDMA speeds and to configure 614 the kernel to change PIO, DMA and UDMA speeds and to configure
615 the chip to optimum performance. 615 the chip to optimum performance.
616 616
617config BLK_DEV_IT8172
618 bool "IT8172 IDE support"
619 depends on (MIPS_ITE8172 || MIPS_IVR)
620 help
621 Say Y here to support the on-board IDE controller on the Integrated
622 Technology Express, Inc. ITE8172 SBC. Vendor page at
623 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
624 board at <http://www.mvista.com/partners/semiconductor/ite.html>.
625
626config BLK_DEV_IT821X 617config BLK_DEV_IT821X
627 tristate "IT821X IDE support" 618 tristate "IT821X IDE support"
628 help 619 help
diff --git a/drivers/ide/pci/Makefile b/drivers/ide/pci/Makefile
index 640a54b09b5a..fef08960aa4c 100644
--- a/drivers/ide/pci/Makefile
+++ b/drivers/ide/pci/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o
12obj-$(CONFIG_BLK_DEV_HPT34X) += hpt34x.o 12obj-$(CONFIG_BLK_DEV_HPT34X) += hpt34x.o
13obj-$(CONFIG_BLK_DEV_HPT366) += hpt366.o 13obj-$(CONFIG_BLK_DEV_HPT366) += hpt366.o
14#obj-$(CONFIG_BLK_DEV_HPT37X) += hpt37x.o 14#obj-$(CONFIG_BLK_DEV_HPT37X) += hpt37x.o
15obj-$(CONFIG_BLK_DEV_IT8172) += it8172.o
16obj-$(CONFIG_BLK_DEV_IT821X) += it821x.o 15obj-$(CONFIG_BLK_DEV_IT821X) += it821x.o
17obj-$(CONFIG_BLK_DEV_JMICRON) += jmicron.o 16obj-$(CONFIG_BLK_DEV_JMICRON) += jmicron.o
18obj-$(CONFIG_BLK_DEV_NS87415) += ns87415.o 17obj-$(CONFIG_BLK_DEV_NS87415) += ns87415.o
diff --git a/drivers/ide/pci/it8172.c b/drivers/ide/pci/it8172.c
deleted file mode 100644
index 0fc89fafad65..000000000000
--- a/drivers/ide/pci/it8172.c
+++ /dev/null
@@ -1,307 +0,0 @@
1/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * IT8172 IDE controller support
5 *
6 * Copyright 2000 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * stevel@mvista.com or source@mvista.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30
31#include <linux/module.h>
32#include <linux/types.h>
33#include <linux/kernel.h>
34#include <linux/ioport.h>
35#include <linux/pci.h>
36#include <linux/hdreg.h>
37#include <linux/ide.h>
38#include <linux/delay.h>
39#include <linux/init.h>
40
41#include <asm/io.h>
42#include <asm/it8172/it8172_int.h>
43
44/*
45 * Prototypes
46 */
47static u8 it8172_ratemask (ide_drive_t *drive)
48{
49 return 1;
50}
51
52static void it8172_tune_drive (ide_drive_t *drive, u8 pio)
53{
54 ide_hwif_t *hwif = HWIF(drive);
55 struct pci_dev *dev = hwif->pci_dev;
56 int is_slave = (&hwif->drives[1] == drive);
57 unsigned long flags;
58 u16 drive_enables;
59 u32 drive_timing;
60
61 pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
62 spin_lock_irqsave(&ide_lock, flags);
63 pci_read_config_word(dev, 0x40, &drive_enables);
64 pci_read_config_dword(dev, 0x44, &drive_timing);
65
66 /*
67 * FIX! The DIOR/DIOW pulse width and recovery times in port 0x44
68 * are being left at the default values of 8 PCI clocks (242 nsec
69 * for a 33 MHz clock). These can be safely shortened at higher
70 * PIO modes. The DIOR/DIOW pulse width and recovery times only
71 * apply to PIO modes, not to the DMA modes.
72 */
73
74 /*
75 * Enable port 0x44. The IT8172G spec is confused; it calls
76 * this register the "Slave IDE Timing Register", but in fact,
77 * it controls timing for both master and slave drives.
78 */
79 drive_enables |= 0x4000;
80
81 if (is_slave) {
82 drive_enables &= 0xc006;
83 if (pio > 1)
84 /* enable prefetch and IORDY sample-point */
85 drive_enables |= 0x0060;
86 } else {
87 drive_enables &= 0xc060;
88 if (pio > 1)
89 /* enable prefetch and IORDY sample-point */
90 drive_enables |= 0x0006;
91 }
92
93 pci_write_config_word(dev, 0x40, drive_enables);
94 spin_unlock_irqrestore(&ide_lock, flags);
95}
96
97static u8 it8172_dma_2_pio (u8 xfer_rate)
98{
99 switch(xfer_rate) {
100 case XFER_UDMA_5:
101 case XFER_UDMA_4:
102 case XFER_UDMA_3:
103 case XFER_UDMA_2:
104 case XFER_UDMA_1:
105 case XFER_UDMA_0:
106 case XFER_MW_DMA_2:
107 case XFER_PIO_4:
108 return 4;
109 case XFER_MW_DMA_1:
110 case XFER_PIO_3:
111 return 3;
112 case XFER_SW_DMA_2:
113 case XFER_PIO_2:
114 return 2;
115 case XFER_MW_DMA_0:
116 case XFER_SW_DMA_1:
117 case XFER_SW_DMA_0:
118 case XFER_PIO_1:
119 case XFER_PIO_0:
120 case XFER_PIO_SLOW:
121 default:
122 return 0;
123 }
124}
125
126static int it8172_tune_chipset (ide_drive_t *drive, u8 xferspeed)
127{
128 ide_hwif_t *hwif = HWIF(drive);
129 struct pci_dev *dev = hwif->pci_dev;
130 u8 speed = ide_rate_filter(it8172_ratemask(drive), xferspeed);
131 int a_speed = 3 << (drive->dn * 4);
132 int u_flag = 1 << drive->dn;
133 int u_speed = 0;
134 u8 reg48, reg4a;
135
136 pci_read_config_byte(dev, 0x48, &reg48);
137 pci_read_config_byte(dev, 0x4a, &reg4a);
138
139 /*
140 * Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec
141 * at 33 MHz PCI clock) seems to cause BadCRC errors during DMA
142 * transfers on some drives, even though both numbers meet the minimum
143 * ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively.
144 * So the faster times are just commented out here. The good news is
145 * that the slower cycle time has very little affect on transfer
146 * performance.
147 */
148
149 switch(speed) {
150 case XFER_UDMA_4:
151 case XFER_UDMA_2: //u_speed = 2 << (drive->dn * 4); break;
152 case XFER_UDMA_5:
153 case XFER_UDMA_3:
154 case XFER_UDMA_1: //u_speed = 1 << (drive->dn * 4); break;
155 case XFER_UDMA_0: u_speed = 0 << (drive->dn * 4); break;
156 case XFER_MW_DMA_2:
157 case XFER_MW_DMA_1:
158 case XFER_MW_DMA_0:
159 case XFER_SW_DMA_2: break;
160 case XFER_PIO_4:
161 case XFER_PIO_3:
162 case XFER_PIO_2:
163 case XFER_PIO_0: break;
164 default: return -1;
165 }
166
167 if (speed >= XFER_UDMA_0) {
168 pci_write_config_byte(dev, 0x48, reg48 | u_flag);
169 reg4a &= ~a_speed;
170 pci_write_config_byte(dev, 0x4a, reg4a | u_speed);
171 } else {
172 pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
173 pci_write_config_byte(dev, 0x4a, reg4a & ~a_speed);
174 }
175
176 it8172_tune_drive(drive, it8172_dma_2_pio(speed));
177 return (ide_config_drive_speed(drive, speed));
178}
179
180static int it8172_config_chipset_for_dma (ide_drive_t *drive)
181{
182 u8 speed = ide_dma_speed(drive, it8172_ratemask(drive));
183
184 if (!(speed)) {
185 u8 tspeed = ide_get_best_pio_mode(drive, 255, 4, NULL);
186 speed = it8172_dma_2_pio(XFER_PIO_0 + tspeed);
187 }
188
189 (void) it8172_tune_chipset(drive, speed);
190 return ide_dma_enable(drive);
191}
192
193static int it8172_config_drive_xfer_rate (ide_drive_t *drive)
194{
195 ide_hwif_t *hwif = HWIF(drive);
196 struct hd_driveid *id = drive->id;
197
198 drive->init_speed = 0;
199
200 if (id && (id->capability & 1) && drive->autodma) {
201
202 if (ide_use_dma(drive)) {
203 if (it8172_config_chipset_for_dma(drive))
204 return hwif->ide_dma_on(drive);
205 }
206
207 goto fast_ata_pio;
208
209 } else if ((id->capability & 8) || (id->field_valid & 2)) {
210fast_ata_pio:
211 it8172_tune_drive(drive, 5);
212 return hwif->ide_dma_off_quietly(drive);
213 }
214 /* IORDY not supported */
215 return 0;
216}
217
218static unsigned int __devinit init_chipset_it8172 (struct pci_dev *dev, const char *name)
219{
220 unsigned char progif;
221
222 /*
223 * Place both IDE interfaces into PCI "native" mode
224 */
225 pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
226 pci_write_config_byte(dev, PCI_CLASS_PROG, progif | 0x05);
227
228 return IT8172_IDE_IRQ;
229}
230
231
232static void __devinit init_hwif_it8172 (ide_hwif_t *hwif)
233{
234 struct pci_dev* dev = hwif->pci_dev;
235 unsigned long cmdBase, ctrlBase;
236
237 hwif->autodma = 0;
238 hwif->tuneproc = &it8172_tune_drive;
239 hwif->speedproc = &it8172_tune_chipset;
240
241 cmdBase = dev->resource[0].start;
242 ctrlBase = dev->resource[1].start;
243
244 ide_init_hwif_ports(&hwif->hw, cmdBase, ctrlBase | 2, NULL);
245 memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
246 hwif->noprobe = 0;
247
248 if (!hwif->dma_base) {
249 hwif->drives[0].autotune = 1;
250 hwif->drives[1].autotune = 1;
251 return;
252 }
253
254 hwif->atapi_dma = 1;
255 hwif->ultra_mask = 0x07;
256 hwif->mwdma_mask = 0x06;
257 hwif->swdma_mask = 0x04;
258
259 hwif->ide_dma_check = &it8172_config_drive_xfer_rate;
260 if (!noautodma)
261 hwif->autodma = 1;
262 hwif->drives[0].autodma = hwif->autodma;
263 hwif->drives[1].autodma = hwif->autodma;
264}
265
266static ide_pci_device_t it8172_chipsets[] __devinitdata = {
267 { /* 0 */
268 .name = "IT8172G",
269 .init_chipset = init_chipset_it8172,
270 .init_hwif = init_hwif_it8172,
271 .channels = 2,
272 .autodma = AUTODMA,
273 .enablebits = {{0x00,0x00,0x00}, {0x40,0x00,0x01}},
274 .bootable = ON_BOARD,
275 }
276};
277
278static int __devinit it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id)
279{
280 if ((!(PCI_FUNC(dev->devfn) & 1) ||
281 (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
282 return -ENODEV; /* IT8172 is more than an IDE controller */
283 return ide_setup_pci_device(dev, &it8172_chipsets[id->driver_data]);
284}
285
286static struct pci_device_id it8172_pci_tbl[] = {
287 { PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
288 { 0, },
289};
290MODULE_DEVICE_TABLE(pci, it8172_pci_tbl);
291
292static struct pci_driver driver = {
293 .name = "IT8172_IDE",
294 .id_table = it8172_pci_tbl,
295 .probe = it8172_init_one,
296};
297
298static int it8172_ide_init(void)
299{
300 return ide_pci_register_driver(&driver);
301}
302
303module_init(it8172_ide_init);
304
305MODULE_AUTHOR("SteveL@mvista.com");
306MODULE_DESCRIPTION("PCI driver module for ITE 8172 IDE");
307MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-12 21:42:35 -0500