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Add detailed status register printing and unlocking for all ATMEL AT25* chips

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Add support for Atmel AT25DF081A and AT25DQ161.

Some chips require EWSR before WRSR, others require WREN before WRSR,
and some support both variants. Add feature_bits to select the correct
SPI command, and default to EWSR.

Corresponding to flashrom svn r1115.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Tested-by: Steven Rosario
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Carl-Daniel Hailfinger
2010-07-29 13:09:18 +00:00
parent f792c7d4cb
commit fd7075ae75
7 changed files with 442 additions and 29 deletions
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3
spi.h
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@ -31,7 +31,7 @@
#define JEDEC_RDID_INSIZE 0x03
/* AT25F512A has bit 3 as don't care bit in commands */
#define AT25F512A_RDID 0x15
#define AT25F512A_RDID 0x15 /* 0x15 or 0x1d */
#define AT25F512A_RDID_OUTSIZE 0x01
#define AT25F512A_RDID_INSIZE 0x02
@ -123,5 +123,6 @@
#define SPI_INVALID_OPCODE -2
#define SPI_INVALID_ADDRESS -3
#define SPI_INVALID_LENGTH -4
#define SPI_FLASHROM_BUG -5
#endif /* !__SPI_H__ */