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Further abstract SPI functions to allow chips bigger than 512 kB behind IT8716Fs

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Support SPI flash chips bigger than 512 kByte sitting behind IT8716F
Super I/O performing LPC-to-SPI flash translation.

Corresponding to flashrom svn r181 and coreboot v2 svn r3061.

Signed-off-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl>
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Ronald Hoogenboom
2008-01-19 00:04:46 +00:00
committed by Carl-Daniel Hailfinger
parent 42eb17fc5e
commit 7ff530b40e
3 changed files with 213 additions and 39 deletions
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10
flash.h
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@ -234,7 +234,16 @@ extern struct flashchip flashchips[];
#define TI_ID 0x97 /* Texas Instruments */
/*
* W25X chips are SPI, first byte of device ID is memory type, second
* byte of device ID is related to log(bitsize).
*/
#define WINBOND_ID 0xDA /* Winbond */
#define WINBOND_NEX_ID 0xEF /* Winbond (ex Nexcom) serial flash devices */
#define W_25X10 0x3011
#define W_25X20 0x3012
#define W_25X40 0x3013
#define W_25X80 0x3014
#define W_29C011 0xC1
#define W_29C020C 0x45
#define W_29C040P 0x46
@ -297,6 +306,7 @@ void generic_spi_write_enable();
void generic_spi_write_disable();
int generic_spi_chip_erase_c7(struct flashchip *flash);
int generic_spi_chip_write(struct flashchip *flash, uint8_t *buf);
int generic_spi_chip_read(struct flashchip *flash, uint8_t *buf);
/* 82802ab.c */
int probe_82802ab(struct flashchip *flash);