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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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8
spi.h
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@ -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