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Add additional SPI sector erase and chip erase command functions to

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flashrom. Not all chips support all commands, so allow the implementer
to select the matching function.
Fix a layering violation in ICH SPI code to be less bad. Still not
perfect, but the new code is shorter, more generic and
architecturally
more sound.

TODO (in a separate patch):
- move the generic sector erase code to spi.c
- decide which erase command to use based on info about the chip
- create a generic spi_erase_all_sectors function which calls the
generic sector erase function
  
Thanks to Stefan for reviewing and commenting.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3722 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Carl-Daniel Hailfinger
2008-11-03 00:02:11 +00:00
parent d22ef49783
commit 6287e2e7aa
3 changed files with 42 additions and 16 deletions
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3
util/flashrom/flash.h
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@ -424,8 +424,11 @@ int spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr);
void spi_write_enable();
void spi_write_disable();
int spi_chip_erase_60(struct flashchip *flash);
int spi_chip_erase_c7(struct flashchip *flash);
int spi_chip_erase_d8(struct flashchip *flash);
int spi_block_erase_52(const struct flashchip *flash, unsigned long addr);
int spi_block_erase_d8(const struct flashchip *flash, unsigned long addr);
int spi_chip_write(struct flashchip *flash, uint8_t *buf);
int spi_chip_read(struct flashchip *flash, uint8_t *buf);
uint8_t spi_read_status_register();