diff options
| -rw-r--r-- | drivers/mtd/cfi_flash.c | 25 | ||||
| -rw-r--r-- | include/flash.h | 5 | ||||
| -rw-r--r-- | include/mtd/cfi_flash.h | 1 |
3 files changed, 25 insertions, 6 deletions
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index f3bb727..8a5babe 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -111,11 +111,9 @@ static void cfi_flash_init_dm(void) } } -static phys_addr_t cfi_flash_base[CFI_MAX_FLASH_BANKS]; - phys_addr_t cfi_flash_bank_addr(int i) { - return cfi_flash_base[i]; + return flash_info[i].base; } #else __weak phys_addr_t cfi_flash_bank_addr(int i) @@ -546,7 +544,16 @@ static int flash_is_busy (flash_info_t * info, flash_sect_t sect) #ifdef CONFIG_FLASH_CFI_LEGACY case CFI_CMDSET_AMD_LEGACY: #endif - retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE); + if (info->sr_supported) { + flash_write_cmd (info, sect, info->addr_unlock1, + FLASH_CMD_READ_STATUS); + retval = !flash_isset (info, sect, 0, + FLASH_STATUS_DONE); + } else { + retval = flash_toggle (info, sect, 0, + AMD_STATUS_TOGGLE); + } + break; default: retval = 0; @@ -1687,6 +1694,7 @@ static void cmdset_amd_read_jedec_ids(flash_info_t *info) { ushort bankId = 0; uchar manuId; + uchar lsbits; flash_write_cmd(info, 0, 0, AMD_CMD_RESET); flash_unlock_seq(info, 0); @@ -1702,6 +1710,9 @@ static void cmdset_amd_read_jedec_ids(flash_info_t *info) } info->manufacturer_id = manuId; + lsbits = flash_read_uchar(info, FLASH_OFFSET_LOWER_SW_BITS); + info->sr_supported = lsbits & BIT(0); + switch (info->chipwidth){ case FLASH_CFI_8BIT: info->device_id = flash_read_uchar (info, @@ -2458,10 +2469,12 @@ static int cfi_flash_probe(struct udevice *dev) while (idx < len) { addr = fdt_translate_address((void *)blob, node, cell + idx); - cfi_flash_base[cfi_flash_num_flash_banks++] = addr; + flash_info[cfi_flash_num_flash_banks].dev = dev; + flash_info[cfi_flash_num_flash_banks].base = addr; + cfi_flash_num_flash_banks++; idx += addrc + sizec; } - gd->bd->bi_flashstart = cfi_flash_base[0]; + gd->bd->bi_flashstart = flash_info[0].base; return 0; } diff --git a/include/flash.h b/include/flash.h index f53fe91..dc67cb2 100644 --- a/include/flash.h +++ b/include/flash.h @@ -42,11 +42,16 @@ typedef struct { ushort cfi_offset; /* offset for cfi query */ ulong addr_unlock1; /* unlock address 1 for AMD flash roms */ ulong addr_unlock2; /* unlock address 2 for AMD flash roms */ + uchar sr_supported; /* status register supported */ const char *name; /* human-readable name */ #endif #ifdef CONFIG_MTD struct mtd_info *mtd; #endif +#ifdef CONFIG_CFI_FLASH /* DM-specific parts */ + struct udevice *dev; + phys_addr_t base; +#endif } flash_info_t; extern flash_info_t flash_info[]; /* info for FLASH chips */ diff --git a/include/mtd/cfi_flash.h b/include/mtd/cfi_flash.h index eade2b3..095725a 100644 --- a/include/mtd/cfi_flash.h +++ b/include/mtd/cfi_flash.h @@ -62,6 +62,7 @@ #define FLASH_OFFSET_MANUFACTURER_ID 0x00 #define FLASH_OFFSET_DEVICE_ID 0x01 +#define FLASH_OFFSET_LOWER_SW_BITS 0x0C #define FLASH_OFFSET_DEVICE_ID2 0x0E #define FLASH_OFFSET_DEVICE_ID3 0x0F #define FLASH_OFFSET_CFI 0x55 |