#define ATM_CMD_SOFTLOCK_START 0x80
#define ATM_CMD_LOCK_SECT 0x40
+#define FLASH_CONTINUATION_CODE 0x7F
+
#define FLASH_OFFSET_MANUFACTURER_ID 0x00
#define FLASH_OFFSET_DEVICE_ID 0x01
#define FLASH_OFFSET_DEVICE_ID2 0x0E
/*-----------------------------------------------------------------------
*/
#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE)
-static flash_info_t *flash_get_info(ulong base)
+flash_info_t *flash_get_info(ulong base)
{
int i;
flash_info_t * info = 0;
int i;
char *cp;
- cp = (unsigned char *) &data;
+ cp = (char *) &data;
for (i = 0; i < 8; i++)
sprintf (&str[i * 2], "%2.2x", *cp++);
}
break;
case CFI_CMDSET_AMD_EXTENDED:
case CFI_CMDSET_AMD_STANDARD:
-#ifdef CONFIG_FLASH_CFI_LEGACY
- case CFI_CMDSET_AMD_LEGACY:
-#endif
sect = find_sector(info, dest);
flash_unlock_seq (info, sect);
flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE);
sect_found = 1;
break;
+#ifdef CONFIG_FLASH_CFI_LEGACY
+ case CFI_CMDSET_AMD_LEGACY:
+ sect = find_sector(info, dest);
+ flash_unlock_seq (info, 0);
+ flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
+ sect_found = 1;
+ break;
+#endif
}
switch (info->portwidth) {
#endif
flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER);
cnt = len >> shift;
- flash_write_cmd(info, sector, offset, (uchar)cnt - 1);
+ flash_write_cmd(info, sector, offset, cnt - 1);
switch (info->portwidth) {
case FLASH_CFI_8BIT:
static void cmdset_amd_read_jedec_ids(flash_info_t *info)
{
+ ushort bankId = 0;
+ uchar manuId;
+
flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
flash_unlock_seq(info, 0);
flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info,
- FLASH_OFFSET_MANUFACTURER_ID);
+ manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID);
+ /* JEDEC JEP106Z specifies ID codes up to bank 7 */
+ while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) {
+ bankId += 0x100;
+ manuId = flash_read_uchar (info,
+ bankId | FLASH_OFFSET_MANUFACTURER_ID);
+ }
+ info->manufacturer_id = manuId;
switch (info->chipwidth){
case FLASH_CFI_8BIT:
/* AT49BV6416(T) list the erase regions in the wrong order.
* However, the device ID is identical with the non-broken
- * AT49BV642D since u-boot only reads the low byte (they
- * differ in the high byte.) So leave out this fixup for now.
+ * AT49BV642D they differ in the high byte.
*/
-#if 0
if (info->device_id == 0xd6 || info->device_id == 0xd2)
reverse_geometry = !reverse_geometry;
-#endif
if (reverse_geometry)
cfi_reverse_geometry(qry);
if (qry->num_erase_regions > 1) {
/* reverse geometry if top boot part */
if (info->cfi_version < 0x3131) {
- /* CFI < 1.1, guess by device id (only M29W320ET now) */
- if (info->device_id == 0x2256) {
+ /* CFI < 1.1, guess by device id (M29W320{DT,ET} only) */
+ if (info->device_id == 0x22CA ||
+ info->device_id == 0x2256) {
cfi_reverse_geometry(qry);
}
}
#endif
#ifdef CONFIG_SYS_FLASH_PROTECTION
- char *s = getenv("unlock");
+ /* read environment from EEPROM */
+ char s[64];
+ getenv_r ("unlock", s, sizeof(s));
#endif
#define BANK_BASE(i) (((phys_addr_t [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i])
#ifdef CONFIG_ENV_ADDR_REDUND
flash_protect (FLAG_PROTECT_SET,
CONFIG_ENV_ADDR_REDUND,
- CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SIZE_REDUND - 1,
+ CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
flash_get_info(CONFIG_ENV_ADDR_REDUND));
#endif