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

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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
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64
spi25_statusreg.c
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@ -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);