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-rw-r--r--drivers/mtd/cfi_flash.c53
-rw-r--r--drivers/mtd/jedec_flash.c16
-rw-r--r--drivers/mtd/nand/nand.c4
-rw-r--r--drivers/mtd/nand/nand_base.c21
4 files changed, 53 insertions, 41 deletions
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index bfb1f9f..04a9a92 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -305,17 +305,12 @@ flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
{
unsigned int byte_offset = offset * info->portwidth;
- return map_physmem(info->start[sect] + byte_offset,
- flash_sector_size(info, sect) - byte_offset,
- MAP_NOCACHE);
+ return (void *)(info->start[sect] + byte_offset);
}
static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
unsigned int offset, void *addr)
{
- unsigned int byte_offset = offset * info->portwidth;
-
- unmap_physmem(addr, flash_sector_size(info, sect) - byte_offset);
}
/*-----------------------------------------------------------------------
@@ -802,13 +797,11 @@ static flash_sect_t find_sector (flash_info_t * info, ulong addr)
static int flash_write_cfiword (flash_info_t * info, ulong dest,
cfiword_t cword)
{
- void *dstaddr;
+ void *dstaddr = (void *)dest;
int flag;
flash_sect_t sect = 0;
char sect_found = 0;
- dstaddr = map_physmem(dest, info->portwidth, MAP_NOCACHE);
-
/* Check if Flash is (sufficiently) erased */
switch (info->portwidth) {
case FLASH_CFI_8BIT:
@@ -827,10 +820,8 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest,
flag = 0;
break;
}
- if (!flag) {
- unmap_physmem(dstaddr, info->portwidth);
+ if (!flag)
return ERR_NOT_ERASED;
- }
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts ();
@@ -873,8 +864,6 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest,
if (flag)
enable_interrupts ();
- unmap_physmem(dstaddr, info->portwidth);
-
if (!sect_found)
sect = find_sector (info, dest);
@@ -890,7 +879,7 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
int cnt;
int retcode;
void *src = cp;
- void *dst = map_physmem(dest, len, MAP_NOCACHE);
+ void *dst = (void *)dest;
void *dst2 = dst;
int flag = 0;
uint offset = 0;
@@ -1052,7 +1041,6 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
}
out_unmap:
- unmap_physmem(dst, len);
return retcode;
}
#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
@@ -1301,7 +1289,7 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
/* handle unaligned start */
if ((aln = addr - wp) != 0) {
cword.l = 0;
- p = map_physmem(wp, info->portwidth, MAP_NOCACHE);
+ p = (uchar *)wp;
for (i = 0; i < aln; ++i)
flash_add_byte (info, &cword, flash_read8(p + i));
@@ -1313,7 +1301,6 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
flash_add_byte (info, &cword, flash_read8(p + i));
rc = flash_write_cfiword (info, wp, cword);
- unmap_physmem(p, info->portwidth);
if (rc != 0)
return rc;
@@ -1372,14 +1359,13 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
* handle unaligned tail bytes
*/
cword.l = 0;
- p = map_physmem(wp, info->portwidth, MAP_NOCACHE);
+ p = (uchar *)wp;
for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) {
flash_add_byte (info, &cword, *src++);
--cnt;
}
for (; i < info->portwidth; ++i)
flash_add_byte (info, &cword, flash_read8(p + i));
- unmap_physmem(p, info->portwidth);
return flash_write_cfiword (info, wp, cword);
}
@@ -1618,7 +1604,7 @@ static void flash_read_jedec_ids (flash_info_t * info)
* board_flash_get_legacy needs to fill in at least:
* info->portwidth, info->chipwidth and info->interface for Jedec probing.
*/
-static int flash_detect_legacy(ulong base, int banknum)
+static int flash_detect_legacy(phys_addr_t base, int banknum)
{
flash_info_t *info = &flash_info[banknum];
@@ -1634,7 +1620,10 @@ static int flash_detect_legacy(ulong base, int banknum)
for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) {
info->vendor = modes[i];
- info->start[0] = base;
+ info->start[0] =
+ (ulong)map_physmem(base,
+ info->portwidth,
+ MAP_NOCACHE);
if (info->portwidth == FLASH_CFI_8BIT
&& info->interface == FLASH_CFI_X8X16) {
info->addr_unlock1 = 0x2AAA;
@@ -1648,8 +1637,11 @@ static int flash_detect_legacy(ulong base, int banknum)
info->manufacturer_id,
info->device_id,
info->device_id2);
- if (jedec_flash_match(info, base))
+ if (jedec_flash_match(info, info->start[0]))
break;
+ else
+ unmap_physmem((void *)info->start[0],
+ MAP_NOCACHE);
}
}
@@ -1671,7 +1663,7 @@ static int flash_detect_legacy(ulong base, int banknum)
return 0; /* use CFI */
}
#else
-static inline int flash_detect_legacy(ulong base, int banknum)
+static inline int flash_detect_legacy(phys_addr_t base, int banknum)
{
return 0; /* use CFI */
}
@@ -1826,12 +1818,12 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
* The following code cannot be run from FLASH!
*
*/
-ulong flash_get_size (ulong base, int banknum)
+ulong flash_get_size (phys_addr_t base, int banknum)
{
flash_info_t *info = &flash_info[banknum];
int i, j;
flash_sect_t sect_cnt;
- unsigned long sector;
+ phys_addr_t sector;
unsigned long tmp;
int size_ratio;
uchar num_erase_regions;
@@ -1847,7 +1839,7 @@ ulong flash_get_size (ulong base, int banknum)
info->legacy_unlock = 0;
#endif
- info->start[0] = base;
+ info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE);
if (flash_detect_cfi (info, &qry)) {
info->vendor = le16_to_cpu(qry.p_id);
@@ -1939,7 +1931,10 @@ ulong flash_get_size (ulong base, int banknum)
printf("ERROR: too many flash sectors\n");
break;
}
- info->start[sect_cnt] = sector;
+ info->start[sect_cnt] =
+ (ulong)map_physmem(sector,
+ info->portwidth,
+ MAP_NOCACHE);
sector += (erase_region_size * size_ratio);
/*
@@ -2016,7 +2011,7 @@ unsigned long flash_init (void)
char *s = getenv("unlock");
#endif
-#define BANK_BASE(i) (((unsigned long [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i])
+#define BANK_BASE(i) (((phys_addr_t [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i])
/* Init: no FLASHes known */
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
diff --git a/drivers/mtd/jedec_flash.c b/drivers/mtd/jedec_flash.c
index 2d99d4d..e48acec 100644
--- a/drivers/mtd/jedec_flash.c
+++ b/drivers/mtd/jedec_flash.c
@@ -37,10 +37,6 @@
#define P_ID_AMD_STD CFI_CMDSET_AMD_LEGACY
-/* Manufacturers */
-#define MANUFACTURER_AMD 0x0001
-#define MANUFACTURER_SST 0x00BF
-
/* AMD */
#define AM29DL800BB 0x22CB
#define AM29DL800BT 0x224A
@@ -172,7 +168,7 @@ struct amd_flash_info {
static const struct amd_flash_info jedec_table[] = {
#ifdef CONFIG_SYS_FLASH_LEGACY_256Kx8
{
- .mfr_id = MANUFACTURER_SST,
+ .mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39LF020,
.name = "SST 39LF020",
.uaddr = {
@@ -188,7 +184,7 @@ static const struct amd_flash_info jedec_table[] = {
#endif
#ifdef CONFIG_SYS_FLASH_LEGACY_512Kx8
{
- .mfr_id = MANUFACTURER_AMD,
+ .mfr_id = (u16)AMD_MANUFACT,
.dev_id = AM29LV040B,
.name = "AMD AM29LV040B",
.uaddr = {
@@ -202,7 +198,7 @@ static const struct amd_flash_info jedec_table[] = {
}
},
{
- .mfr_id = MANUFACTURER_SST,
+ .mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39LF040,
.name = "SST 39LF040",
.uaddr = {
@@ -216,7 +212,7 @@ static const struct amd_flash_info jedec_table[] = {
}
},
{
- .mfr_id = STM_MANUFACT,
+ .mfr_id = (u16)STM_MANUFACT,
.dev_id = STM_ID_M29W040B,
.name = "ST Micro M29W040B",
.uaddr = {
@@ -232,7 +228,7 @@ static const struct amd_flash_info jedec_table[] = {
#endif
#ifdef CONFIG_SYS_FLASH_LEGACY_512Kx16
{
- .mfr_id = MANUFACTURER_AMD,
+ .mfr_id = (u16)AMD_MANUFACT,
.dev_id = AM29LV400BB,
.name = "AMD AM29LV400BB",
.uaddr = {
@@ -249,7 +245,7 @@ static const struct amd_flash_info jedec_table[] = {
}
},
{
- .mfr_id = MANUFACTURER_AMD,
+ .mfr_id = (u16)AMD_MANUFACT,
.dev_id = AM29LV800BB,
.name = "AMD AM29LV800BB",
.uaddr = {
diff --git a/drivers/mtd/nand/nand.c b/drivers/mtd/nand/nand.c
index cf92617..70b605f 100644
--- a/drivers/mtd/nand/nand.c
+++ b/drivers/mtd/nand/nand.c
@@ -28,6 +28,8 @@
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
#endif
+DECLARE_GLOBAL_DATA_PTR;
+
int nand_curr_device = -1;
nand_info_t nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
@@ -46,6 +48,8 @@ static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
if (nand_scan(mtd, 1) == 0) {
if (!mtd->name)
mtd->name = (char *)default_nand_name;
+ else
+ mtd->name += gd->reloc_off;
} else
mtd->name = NULL;
} else {
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ef37f97..d33fee2 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -75,6 +75,17 @@
#include <jffs2/jffs2.h>
#endif
+/*
+ * CONFIG_SYS_NAND_RESET_CNT is used as a timeout mechanism when resetting
+ * a flash. NAND flash is initialized prior to interrupts so standard timers
+ * can't be used. CONFIG_SYS_NAND_RESET_CNT should be set to a value
+ * which is greater than (max NAND reset time / NAND status read time).
+ * A conservative default of 200000 (500 us / 25 ns) is used as a default.
+ */
+#ifndef CONFIG_SYS_NAND_RESET_CNT
+#define CONFIG_SYS_NAND_RESET_CNT 200000
+#endif
+
/* Define default oob placement schemes for large and small page devices */
static struct nand_ecclayout nand_oob_8 = {
.eccbytes = 3,
@@ -524,6 +535,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
{
register struct nand_chip *chip = mtd->priv;
int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
+ uint32_t rst_sts_cnt = CONFIG_SYS_NAND_RESET_CNT;
/*
* Write out the command to the device.
@@ -590,7 +602,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
NAND_CTRL_CLE | NAND_CTRL_CHANGE);
chip->cmd_ctrl(mtd,
NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
- while (!(chip->read_byte(mtd) & NAND_STATUS_READY)) ;
+ while (!(chip->read_byte(mtd) & NAND_STATUS_READY) &&
+ (rst_sts_cnt--));
return;
/* This applies to read commands */
@@ -626,6 +639,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
int column, int page_addr)
{
register struct nand_chip *chip = mtd->priv;
+ uint32_t rst_sts_cnt = CONFIG_SYS_NAND_RESET_CNT;
/* Emulate NAND_CMD_READOOB */
if (command == NAND_CMD_READOOB) {
@@ -696,7 +710,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
chip->cmd_ctrl(mtd, NAND_CMD_NONE,
NAND_NCE | NAND_CTRL_CHANGE);
- while (!(chip->read_byte(mtd) & NAND_STATUS_READY)) ;
+ while (!(chip->read_byte(mtd) & NAND_STATUS_READY) &&
+ (rst_sts_cnt--));
return;
case NAND_CMD_RNDOUT:
@@ -2618,7 +2633,9 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips)
type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id);
if (IS_ERR(type)) {
+#ifndef CONFIG_SYS_NAND_QUIET_TEST
printk(KERN_WARNING "No NAND device found!!!\n");
+#endif
chip->select_chip(mtd, -1);
return PTR_ERR(type);
}
generated by cgit v1.1 at 2024-11-16 06:33:22 +0000