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Merge git://www.denx.de/git/u-boot-cfi-flash

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This commit is contained in:
Tom Rini 2017-09-26 19:38:04 -04:00
commit 9241265f29
3 changed files with 25 additions and 6 deletions
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25
drivers/mtd/cfi_flash.c
View file

@ -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;
}

5
include/flash.h
View file

@ -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 */

1
include/mtd/cfi_flash.h
View file

@ -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