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Unify chip write functions

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The currently used write functions (wrappers) all use helpers which
perform the actual write (inner functions).

The signature of the write wrappers is: int write_chip(struct flashchip
*flash, uint8_t * buf);

The signature of the inner write functions varied a lot. This patch
changes them to: int write_part(struct flashchip *flash, uint8_t *src,
int start, int len);

Did you know that flashrom has only 8 inner write functions for all
flash chips? write_page_write_jedec_common write_sector_jedec_common
write_sector_28sf040 spi_chip_write_256_new spi_chip_write_1_new
spi_aai_write_new write_page_82802ab write_page_m29f400bt

Export all inner write functions.

Change the function signature of wait_82802ab to eliminate single-use
variables.

Remove an error message in write_page_m29f400bt which was printed for
every byte written regardless of success.

Add sharplhf00l04.c to the list of flash chip drivers in the Makefile.
While the functions in there are unused, I suspect we will need them
later, and by hooking the file up we ensure that compilation won't
break.

Corresponding to flashrom svn r1208.

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
2010-10-10 14:02:27 +00:00
parent b28349f8bc
commit b30a5ed4af
9 changed files with 62 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
sharplhf00l04.c
View File

@ -23,6 +23,7 @@
/* FIXME: The datasheet is unclear whether we should use toggle_ready_jedec
* or wait_82802ab.
* FIXME: This file is unused.
*/
int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsigned int blocklen)
@ -33,7 +34,7 @@ int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsign
// clear status register
chip_writeb(0x50, bios);
status = wait_82802ab(flash->virtual_memory);
status = wait_82802ab(flash);
print_status_82802ab(status);
// clear write protect
msg_cspew("write protect is at 0x%lx\n", (wrprotect));
@ -46,7 +47,7 @@ int erase_lhf00l04_block(struct flashchip *flash, unsigned int blockaddr, unsign
chip_writeb(0xd0, bios);
programmer_delay(10);
// now let's see what the register is
status = wait_82802ab(flash->virtual_memory);
status = wait_82802ab(flash);
print_status_82802ab(status);
if (check_erased_range(flash, blockaddr, blocklen)) {
@ -61,11 +62,9 @@ int write_lhf00l04(struct flashchip *flash, uint8_t *buf)
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
chipaddr bios = flash->virtual_memory;
for (i = 0; i < total_size / page_size; i++) {
write_page_82802ab(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_page_82802ab(flash, buf + i * page_size, i * page_size, page_size);
}
return 0;