[flashrom] [PATCH 4/4] Add support for Atmel's AT25F series of SPI flash chips.
Stefan Tauner
stefan.tauner at student.tuwien.ac.at
Sun Sep 23 16:54:57 CEST 2012
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*)
Signed-off-by: Stefan Tauner <stefan.tauner at student.tuwien.ac.at>
---
chipdrivers.h | 7 +++
flashchips.c | 148 +++++++++++++++++++++++++++++++++++++++++++++++++++++
flashchips.h | 11 ++--
spi.h | 8 +--
spi25.c | 22 ++++++++
spi25_statusreg.c | 64 +++++++++++++++++++++++
6 files changed, 250 insertions(+), 10 deletions(-)
diff --git a/chipdrivers.h b/chipdrivers.h
index db153cd..2a12973 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -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);
@@ -66,13 +67,19 @@ int spi_prettyprint_status_register_amic_a25l40p(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);
diff --git a/flashchips.c b/flashchips.c
index 30377f9..33522fb 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -1667,6 +1667,65 @@ const struct flashchip flashchips[] = {
{
.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",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
@@ -1709,6 +1768,95 @@ const struct flashchip flashchips[] = {
{
.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",
.bustype = BUS_SPI,
.manufacture_id = ATMEL_ID,
diff --git a/flashchips.h b/flashchips.h
index 9fb7df0..0d5b8e1 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -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
diff --git a/spi.h b/spi.h
index ce2ede8..2f06619 100644
--- a/spi.h
+++ b/spi.h
@@ -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
diff --git a/spi25.c b/spi25.c
index 38f9b2b..294ece7 100644
--- a/spi25.c
+++ b/spi25.c
@@ -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;
diff --git a/spi25_statusreg.c b/spi25_statusreg.c
index 21f5de0..9e7325f 100644
--- a/spi25_statusreg.c
+++ b/spi25_statusreg.c
@@ -371,6 +371,40 @@ 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);
@@ -385,6 +419,21 @@ 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);
@@ -443,6 +492,16 @@ 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
@@ -451,6 +510,11 @@ 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);
--
Kind regards, Stefan Tauner
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