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mirror of https://review.coreboot.org/flashrom.git synced 2025-04-26 14:42:36 +02:00

Add support for Atmel's AT25F series of SPI flash chips

This adds support for the following chips:
 - AT25F512, AT25F512A, AT25F512B
 - AT25F1024, AT25F1024A
 - AT25F2048
 - AT25F4096

Besides the definitions of the the chips in flashchips.c this includes
- a dedicated probing method (probe_spi_at25f)
- pretty printing methods (spi_prettyprint_status_register_at25f*), and
- unlocking methods (spi_disable_blockprotect_at25f*)

Corresponding to flashrom svn r1637.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Stefan Tauner 2012-12-29 15:04:20 +00:00
parent 54aaa4ae2b
commit 57794ac158
6 changed files with 250 additions and 10 deletions

View File

@ -38,6 +38,7 @@ int probe_spi_rdid4(struct flashctx *flash);
int probe_spi_rems(struct flashctx *flash);
int probe_spi_res1(struct flashctx *flash);
int probe_spi_res2(struct flashctx *flash);
int probe_spi_at25f(struct flashctx *flash);
int spi_write_enable(struct flashctx *flash);
int spi_write_disable(struct flashctx *flash);
int spi_block_erase_20(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
@ -68,13 +69,19 @@ int spi_disable_blockprotect(struct flashctx *flash);
int spi_prettyprint_status_register_amic_a25l032(struct flashctx *flash);
int spi_prettyprint_status_register_at25df(struct flashctx *flash);
int spi_prettyprint_status_register_at25df_sec(struct flashctx *flash);
int spi_prettyprint_status_register_at25f(struct flashctx *flash);
int spi_prettyprint_status_register_at25f512a(struct flashctx *flash);
int spi_prettyprint_status_register_at25f512b(struct flashctx *flash);
int spi_prettyprint_status_register_at25f4096(struct flashctx *flash);
int spi_prettyprint_status_register_at25fs010(struct flashctx *flash);
int spi_prettyprint_status_register_at25fs040(struct flashctx *flash);
int spi_prettyprint_status_register_at26df081a(struct flashctx *flash);
int spi_disable_blockprotect_at25df(struct flashctx *flash);
int spi_disable_blockprotect_at25df_sec(struct flashctx *flash);
int spi_disable_blockprotect_at25f(struct flashctx *flash);
int spi_disable_blockprotect_at25f512a(struct flashctx *flash);
int spi_disable_blockprotect_at25f512b(struct flashctx *flash);
int spi_disable_blockprotect_at25f4096(struct flashctx *flash);
int spi_disable_blockprotect_at25fs010(struct flashctx *flash);
int spi_disable_blockprotect_at25fs040(struct flashctx *flash);
int spi_prettyprint_status_register_s33(struct flashctx *flash);

View File

@ -1665,6 +1665,65 @@ const struct flashchip flashchips[] = {
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25F512",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25F512,
.total_size = 64,
.page_size = 256,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_UNTESTED,
.probe = probe_spi_at25f,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {32 * 1024, 2} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 1} },
.block_erase = spi_block_erase_62,
}
},
.printlock = spi_prettyprint_status_register_at25f,
.unlock = spi_disable_blockprotect_at25f,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25F512A",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25F512A,
.total_size = 64,
.page_size = 128,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_UNTESTED,
.probe = probe_spi_at25f,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {32 * 1024, 2} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {64 * 1024, 1} },
.block_erase = spi_block_erase_62,
}
},
.printlock = spi_prettyprint_status_register_at25f512a,
/* FIXME: It is not correct to use this one, because the BP1 bit is N/A. */
.unlock = spi_disable_blockprotect_at25f512a,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25F512B",
@ -1707,6 +1766,95 @@ const struct flashchip flashchips[] = {
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
/* The A suffix indicates 33MHz instead of 20MHz clock rate.
* All other properties seem to be the same.*/
.name = "AT25F1024(A)",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25F1024,
.total_size = 128,
.page_size = 256,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_OK_PREW,
.probe = probe_spi_at25f,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {32 * 1024, 4} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {128 * 1024, 1} },
.block_erase = spi_block_erase_62,
}
},
.printlock = spi_prettyprint_status_register_at25f,
.unlock = spi_disable_blockprotect_at25f,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25F2048",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25F2048,
.total_size = 256,
.page_size = 256,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_UNTESTED,
.probe = probe_spi_at25f,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {64 * 1024, 4} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = spi_block_erase_62,
}
},
.printlock = spi_prettyprint_status_register_at25f,
.unlock = spi_disable_blockprotect_at25f,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25F4096",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
.model_id = ATMEL_AT25F4096,
.total_size = 512,
.page_size = 256,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_UNTESTED,
.probe = probe_spi_at25f,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {64 * 1024, 8} },
.block_erase = spi_block_erase_52,
}, {
.eraseblocks = { {512 * 1024, 1} },
.block_erase = spi_block_erase_62,
}
},
.printlock = spi_prettyprint_status_register_at25f4096,
.unlock = spi_disable_blockprotect_at25f4096,
.write = spi_chip_write_256,
.read = spi_chip_read,
.voltage = {2700, 3600},
},
{
.vendor = "Atmel",
.name = "AT25FS010",

View File

@ -137,13 +137,12 @@
#define ATMEL_AT25DF321A 0x4701
#define ATMEL_AT25DF641 0x4800
#define ATMEL_AT25DQ161 0x8600
#define ATMEL_AT25F512 /* No device ID found in datasheet. Vendor ID
* can be read with AT25F512A_RDID */
#define ATMEL_AT25F512A 0x65 /* Needs AT25F512A_RDID */
#define ATMEL_AT25F512 0x65 /* guessed, no device ID in datasheet. Needs AT25F_RDID */
#define ATMEL_AT25F512A 0x65 /* Needs AT25F_RDID */
#define ATMEL_AT25F512B 0x6500
#define ATMEL_AT25F1024 /* No device ID found in datasheet. Vendor ID
* can be read with AT25F512A_RDID */
#define ATMEL_AT25F1024A 0x60 /* Needs AT25F512A_RDID */
#define ATMEL_AT25F1024 0x60 /* Needs AT25F_RDID */
#define ATMEL_AT25F2048 0x63 /* Needs AT25F_RDID */
#define ATMEL_AT25F4096 0x64 /* Needs AT25F_RDID */
#define ATMEL_AT25FS010 0x6601
#define ATMEL_AT25FS040 0x6604
#define ATMEL_AT26DF041 0x4400

8
spi.h
View File

@ -30,10 +30,10 @@
/* INSIZE may be 0x04 for some chips*/
#define JEDEC_RDID_INSIZE 0x03
/* AT25F512A has bit 3 as don't care bit in commands */
#define AT25F512A_RDID 0x15 /* 0x15 or 0x1d */
#define AT25F512A_RDID_OUTSIZE 0x01
#define AT25F512A_RDID_INSIZE 0x02
/* Some Atmel AT25F* models have bit 3 as don't care bit in commands */
#define AT25F_RDID 0x15 /* 0x15 or 0x1d */
#define AT25F_RDID_OUTSIZE 0x01
#define AT25F_RDID_INSIZE 0x02
/* Read Electronic Manufacturer Signature */
#define JEDEC_REMS 0x90

22
spi25.c
View File

@ -279,6 +279,28 @@ int probe_spi_res2(struct flashctx *flash)
return 1;
}
/* Only used for some Atmel chips. */
int probe_spi_at25f(struct flashctx *flash)
{
static const unsigned char cmd[AT25F_RDID_OUTSIZE] = { AT25F_RDID };
unsigned char readarr[AT25F_RDID_INSIZE];
uint32_t id1;
uint32_t id2;
if (spi_send_command(flash, sizeof(cmd), sizeof(readarr), cmd, readarr))
return 0;
id1 = readarr[0];
id2 = readarr[1];
msg_cdbg("%s: id1 0x%02x, id2 0x%02x\n", __func__, id1, id2);
if (id1 == flash->chip->manufacture_id && id2 == flash->chip->model_id)
return 1;
return 0;
}
int spi_chip_erase_60(struct flashctx *flash)
{
int result;

View File

@ -378,6 +378,40 @@ int spi_prettyprint_status_register_at25df_sec(struct flashctx *flash)
return spi_prettyprint_status_register_at25df(flash);
}
/* used for AT25F512, AT25F1024(A), AT25F2048 */
int spi_prettyprint_status_register_at25f(struct flashctx *flash)
{
uint8_t status;
status = spi_read_status_register(flash);
spi_prettyprint_status_register_hex(status);
spi_prettyprint_status_register_atmel_at25_wpen(status);
spi_prettyprint_status_register_bit(status, 6);
spi_prettyprint_status_register_bit(status, 5);
spi_prettyprint_status_register_bit(status, 4);
spi_prettyprint_status_register_bp(status, 1);
spi_prettyprint_status_register_welwip(status);
return 0;
}
int spi_prettyprint_status_register_at25f512a(struct flashctx *flash)
{
uint8_t status;
status = spi_read_status_register(flash);
spi_prettyprint_status_register_hex(status);
spi_prettyprint_status_register_atmel_at25_wpen(status);
spi_prettyprint_status_register_bit(status, 6);
spi_prettyprint_status_register_bit(status, 5);
spi_prettyprint_status_register_bit(status, 4);
spi_prettyprint_status_register_bit(status, 3);
spi_prettyprint_status_register_bp(status, 0);
spi_prettyprint_status_register_welwip(status);
return 0;
}
int spi_prettyprint_status_register_at25f512b(struct flashctx *flash)
{
uint8_t status = spi_read_status_register(flash);
@ -392,6 +426,21 @@ int spi_prettyprint_status_register_at25f512b(struct flashctx *flash)
return 0;
}
int spi_prettyprint_status_register_at25f4096(struct flashctx *flash)
{
uint8_t status;
status = spi_read_status_register(flash);
spi_prettyprint_status_register_hex(status);
spi_prettyprint_status_register_atmel_at25_wpen(status);
spi_prettyprint_status_register_bit(status, 6);
spi_prettyprint_status_register_bit(status, 5);
spi_prettyprint_status_register_bp(status, 2);
spi_prettyprint_status_register_welwip(status);
return 0;
}
int spi_prettyprint_status_register_at25fs010(struct flashctx *flash)
{
uint8_t status = spi_read_status_register(flash);
@ -450,6 +499,16 @@ int spi_disable_blockprotect_at25df_sec(struct flashctx *flash)
return spi_disable_blockprotect_at25df(flash);
}
int spi_disable_blockprotect_at25f(struct flashctx *flash)
{
return spi_disable_blockprotect_generic(flash, 0x0C, 1 << 7, 0);
}
int spi_disable_blockprotect_at25f512a(struct flashctx *flash)
{
return spi_disable_blockprotect_generic(flash, 0x04, 1 << 7, 0);
}
int spi_disable_blockprotect_at25f512b(struct flashctx *flash)
{
/* spi_disable_blockprotect_at25df is not really the right way to do
@ -458,6 +517,11 @@ int spi_disable_blockprotect_at25f512b(struct flashctx *flash)
return spi_disable_blockprotect_at25df(flash);
}
int spi_disable_blockprotect_at25f4096(struct flashctx *flash)
{
return spi_disable_blockprotect_generic(flash, 0x1C, 1 << 7, 0);
}
int spi_disable_blockprotect_at25fs010(struct flashctx *flash)
{
return spi_disable_blockprotect_generic(flash, 0x6C, 1 << 7, 0);