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path: root/drivers/mtd/chips/cfi_cmdset_0002.c
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Diffstat (limited to 'drivers/mtd/chips/cfi_cmdset_0002.c')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c100
1 files changed, 53 insertions, 47 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index d81079ef91a5..3b8e32d87977 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -33,7 +33,6 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/reboot.h>
-#include <linux/mtd/compatmac.h>
#include <linux/mtd/map.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/cfi.h>
@@ -292,6 +291,23 @@ static void fixup_sst39vf_rev_b(struct mtd_info *mtd, void *param)
cfi->addr_unlock1 = 0x555;
cfi->addr_unlock2 = 0x2AA;
+
+ cfi->sector_erase_cmd = CMD(0x50);
+}
+
+static void fixup_sst38vf640x_sectorsize(struct mtd_info *mtd, void *param)
+{
+ struct map_info *map = mtd->priv;
+ struct cfi_private *cfi = map->fldrv_priv;
+
+ fixup_sst39vf_rev_b(mtd, param);
+
+ /*
+ * CFI reports 1024 sectors (0x03ff+1) of 64KBytes (0x0100*256) where
+ * it should report a size of 8KBytes (0x0020*256).
+ */
+ cfi->cfiq->EraseRegionInfo[0] = 0x002003ff;
+ pr_warning("%s: Bad 38VF640x CFI data; adjusting sector size from 64 to 8KiB\n", mtd->name);
}
static void fixup_s29gl064n_sectors(struct mtd_info *mtd, void *param)
@@ -318,14 +334,14 @@ static void fixup_s29gl032n_sectors(struct mtd_info *mtd, void *param)
/* Used to fix CFI-Tables of chips without Extended Query Tables */
static struct cfi_fixup cfi_nopri_fixup_table[] = {
- { CFI_MFR_SST, 0x234A, fixup_sst39vf, NULL, }, // SST39VF1602
- { CFI_MFR_SST, 0x234B, fixup_sst39vf, NULL, }, // SST39VF1601
- { CFI_MFR_SST, 0x235A, fixup_sst39vf, NULL, }, // SST39VF3202
- { CFI_MFR_SST, 0x235B, fixup_sst39vf, NULL, }, // SST39VF3201
- { CFI_MFR_SST, 0x235C, fixup_sst39vf_rev_b, NULL, }, // SST39VF3202B
- { CFI_MFR_SST, 0x235D, fixup_sst39vf_rev_b, NULL, }, // SST39VF3201B
- { CFI_MFR_SST, 0x236C, fixup_sst39vf_rev_b, NULL, }, // SST39VF6402B
- { CFI_MFR_SST, 0x236D, fixup_sst39vf_rev_b, NULL, }, // SST39VF6401B
+ { CFI_MFR_SST, 0x234A, fixup_sst39vf, NULL, }, /* SST39VF1602 */
+ { CFI_MFR_SST, 0x234B, fixup_sst39vf, NULL, }, /* SST39VF1601 */
+ { CFI_MFR_SST, 0x235A, fixup_sst39vf, NULL, }, /* SST39VF3202 */
+ { CFI_MFR_SST, 0x235B, fixup_sst39vf, NULL, }, /* SST39VF3201 */
+ { CFI_MFR_SST, 0x235C, fixup_sst39vf_rev_b, NULL, }, /* SST39VF3202B */
+ { CFI_MFR_SST, 0x235D, fixup_sst39vf_rev_b, NULL, }, /* SST39VF3201B */
+ { CFI_MFR_SST, 0x236C, fixup_sst39vf_rev_b, NULL, }, /* SST39VF6402B */
+ { CFI_MFR_SST, 0x236D, fixup_sst39vf_rev_b, NULL, }, /* SST39VF6401B */
{ 0, 0, NULL, NULL }
};
@@ -345,6 +361,10 @@ static struct cfi_fixup cfi_fixup_table[] = {
{ CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors, NULL, },
{ CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors, NULL, },
{ CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors, NULL, },
+ { CFI_MFR_SST, 0x536A, fixup_sst38vf640x_sectorsize, NULL, }, /* SST38VF6402 */
+ { CFI_MFR_SST, 0x536B, fixup_sst38vf640x_sectorsize, NULL, }, /* SST38VF6401 */
+ { CFI_MFR_SST, 0x536C, fixup_sst38vf640x_sectorsize, NULL, }, /* SST38VF6404 */
+ { CFI_MFR_SST, 0x536D, fixup_sst38vf640x_sectorsize, NULL, }, /* SST38VF6403 */
#if !FORCE_WORD_WRITE
{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
#endif
@@ -375,6 +395,13 @@ static void cfi_fixup_major_minor(struct cfi_private *cfi,
if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e &&
extp->MajorVersion == '0')
extp->MajorVersion = '1';
+ /*
+ * SST 38VF640x chips report major=0xFF / minor=0xFF.
+ */
+ if (cfi->mfr == CFI_MFR_SST && (cfi->id >> 4) == 0x0536) {
+ extp->MajorVersion = '1';
+ extp->MinorVersion = '0';
+ }
}
struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
@@ -417,16 +444,26 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
*/
cfi_fixup_major_minor(cfi, extp);
+ /*
+ * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4
+ * see: http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19
+ * http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf
+ * http://www.spansion.com/Support/Datasheets/s29ws-p_00_a12_e.pdf
+ */
if (extp->MajorVersion != '1' ||
- (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+ (extp->MajorVersion == '1' && (extp->MinorVersion < '0' || extp->MinorVersion > '4'))) {
printk(KERN_ERR " Unknown Amd/Fujitsu Extended Query "
- "version %c.%c.\n", extp->MajorVersion,
- extp->MinorVersion);
+ "version %c.%c (%#02x/%#02x).\n",
+ extp->MajorVersion, extp->MinorVersion,
+ extp->MajorVersion, extp->MinorVersion);
kfree(extp);
kfree(mtd);
return NULL;
}
+ printk(KERN_INFO " Amd/Fujitsu Extended Query version %c.%c.\n",
+ extp->MajorVersion, extp->MinorVersion);
+
/* Install our own private info structure */
cfi->cmdset_priv = extp;
@@ -536,15 +573,6 @@ static struct mtd_info *cfi_amdstd_setup(struct mtd_info *mtd)
printk(KERN_WARNING "Sum of regions (%lx) != total size of set of interleaved chips (%lx)\n", offset, devsize);
goto setup_err;
}
-#if 0
- // debug
- for (i=0; i<mtd->numeraseregions;i++){
- printk("%d: offset=0x%x,size=0x%x,blocks=%d\n",
- i,mtd->eraseregions[i].offset,
- mtd->eraseregions[i].erasesize,
- mtd->eraseregions[i].numblocks);
- }
-#endif
__module_get(THIS_MODULE);
register_reboot_notifier(&mtd->reboot_notifier);
@@ -665,7 +693,7 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
* there was an error (so leave the erase
* routine to recover from it) or we trying to
* use the erase-in-progress sector. */
- map_write(map, CMD(0x30), chip->in_progress_block_addr);
+ map_write(map, cfi->sector_erase_cmd, chip->in_progress_block_addr);
chip->state = FL_ERASING;
chip->oldstate = FL_READY;
printk(KERN_ERR "MTD %s(): chip not ready after erase suspend\n", __func__);
@@ -718,7 +746,7 @@ static void put_chip(struct map_info *map, struct flchip *chip, unsigned long ad
switch(chip->oldstate) {
case FL_ERASING:
chip->state = chip->oldstate;
- map_write(map, CMD(0x30), chip->in_progress_block_addr);
+ map_write(map, cfi->sector_erase_cmd, chip->in_progress_block_addr);
chip->oldstate = FL_READY;
chip->state = FL_ERASING;
break;
@@ -861,7 +889,7 @@ static void __xipram xip_udelay(struct map_info *map, struct flchip *chip,
local_irq_disable();
/* Resume the write or erase operation */
- map_write(map, CMD(0x30), adr);
+ map_write(map, cfi->sector_erase_cmd, adr);
chip->state = oldstate;
start = xip_currtime();
} else if (usec >= 1000000/HZ) {
@@ -1016,9 +1044,6 @@ static inline int do_read_secsi_onechip(struct map_info *map, struct flchip *chi
mutex_lock(&chip->mutex);
if (chip->state != FL_READY){
-#if 0
- printk(KERN_DEBUG "Waiting for chip to read, status = %d\n", chip->state);
-#endif
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&chip->wq, &wait);
@@ -1026,10 +1051,6 @@ static inline int do_read_secsi_onechip(struct map_info *map, struct flchip *chi
schedule();
remove_wait_queue(&chip->wq, &wait);
-#if 0
- if(signal_pending(current))
- return -EINTR;
-#endif
timeo = jiffies + HZ;
goto retry;
@@ -1237,9 +1258,6 @@ static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len,
mutex_lock(&cfi->chips[chipnum].mutex);
if (cfi->chips[chipnum].state != FL_READY) {
-#if 0
- printk(KERN_DEBUG "Waiting for chip to write, status = %d\n", cfi->chips[chipnum].state);
-#endif
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&cfi->chips[chipnum].wq, &wait);
@@ -1247,10 +1265,6 @@ static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len,
schedule();
remove_wait_queue(&cfi->chips[chipnum].wq, &wait);
-#if 0
- if(signal_pending(current))
- return -EINTR;
-#endif
goto retry;
}
@@ -1315,9 +1329,6 @@ static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len,
mutex_lock(&cfi->chips[chipnum].mutex);
if (cfi->chips[chipnum].state != FL_READY) {
-#if 0
- printk(KERN_DEBUG "Waiting for chip to write, status = %d\n", cfi->chips[chipnum].state);
-#endif
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&cfi->chips[chipnum].wq, &wait);
@@ -1325,10 +1336,6 @@ static int cfi_amdstd_write_words(struct mtd_info *mtd, loff_t to, size_t len,
schedule();
remove_wait_queue(&cfi->chips[chipnum].wq, &wait);
-#if 0
- if(signal_pending(current))
- return -EINTR;
-#endif
goto retry1;
}
@@ -1387,7 +1394,6 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL);
- //cfi_send_gen_cmd(0xA0, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
/* Write Buffer Load */
map_write(map, CMD(0x25), cmd_adr);
@@ -1666,7 +1672,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, cfi->device_type, NULL);
- map_write(map, CMD(0x30), adr);
+ map_write(map, cfi->sector_erase_cmd, adr);
chip->state = FL_ERASING;
chip->erase_suspended = 0;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-03 14:02:07 +0200