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Code Issues Releases Wiki Activity

Move implicit erase out of chip drivers

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Flashrom had an implicit erase-on-write for most flash chip and
programmer drivers, but it was not entirely consistent.

Some drivers had their own hand-rolled partial update functionality
which made handling partial updates from generic code impossible.

Move implicit erase out of chip drivers, and kill some dead erase
functions at the same time. A full chip erase is now performed in the
generic code for all flash chips on write, and after that the whole chip
is written.

Corresponding to flashrom svn r1206.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Carl-Daniel Hailfinger
2010-10-08 18:52:29 +00:00
parent 92c8b0cec2
commit f52f784bb3
12 changed files with 97 additions and 183 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
chipdrivers.h
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@ -33,8 +33,6 @@ int probe_spi_res1(struct flashchip *flash);
int probe_spi_res2(struct flashchip *flash);
int spi_write_enable(void);
int spi_write_disable(void);
int spi_chip_erase_60(struct flashchip *flash);
int spi_chip_erase_c7(struct flashchip *flash);
int spi_block_erase_20(struct flashchip *flash, unsigned int addr, unsigned int blocklen);
int spi_block_erase_52(struct flashchip *flash, unsigned int addr, unsigned int blocklen);
int spi_block_erase_d7(struct flashchip *flash, unsigned int addr, unsigned int blocklen);
@ -69,7 +67,6 @@ int spi_aai_write(struct flashchip *flash, uint8_t *buf);
/* 82802ab.c */
uint8_t wait_82802ab(chipaddr bios);
int probe_82802ab(struct flashchip *flash);
int erase_82802ab(struct flashchip *flash);
int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int pagesize);
int write_82802ab(struct flashchip *flash, uint8_t *buf);
void print_status_82802ab(uint8_t status);
@ -84,7 +81,6 @@ void data_polling_jedec(chipaddr dst, uint8_t data);
int write_byte_program_jedec(chipaddr bios, uint8_t *src,
chipaddr dst);
int probe_jedec(struct flashchip *flash);
int erase_chip_jedec(struct flashchip *flash);
int write_jedec(struct flashchip *flash, uint8_t *buf);
int write_jedec_1(struct flashchip *flash, uint8_t *buf);
int erase_sector_jedec(struct flashchip *flash, unsigned int page, unsigned int pagesize);
@ -94,7 +90,6 @@ int write_sector_jedec_common(struct flashchip *flash, uint8_t *src, chipaddr ds
/* m29f400bt.c */
int probe_m29f400bt(struct flashchip *flash);
int erase_m29f400bt(struct flashchip *flash);
int block_erase_m29f400bt(struct flashchip *flash, unsigned int start, unsigned int len);
int block_erase_chip_m29f400bt(struct flashchip *flash, unsigned int start, unsigned int len);
int write_m29f400bt(struct flashchip *flash, uint8_t *buf);