diff options
author | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2010-10-10 14:02:27 +0000 |
---|---|---|
committer | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2010-10-10 14:02:27 +0000 |
commit | b30a5ed4afead1592224009230ea23500f91b230 (patch) | |
tree | 0185573277197cab68874cedd1e00246ea2cf573 /82802ab.c | |
parent | b28349f8bc40dd55524113e258b3185711e80366 (diff) | |
download | flashrom-b30a5ed4afead1592224009230ea23500f91b230.tar.gz flashrom-b30a5ed4afead1592224009230ea23500f91b230.tar.bz2 flashrom-b30a5ed4afead1592224009230ea23500f91b230.zip |
Unify chip write functions
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>
Diffstat (limited to '82802ab.c')
-rw-r--r-- | 82802ab.c | 19 |
1 files changed, 11 insertions, 8 deletions
@@ -88,9 +88,10 @@ int probe_82802ab(struct flashchip *flash) return 1; } -uint8_t wait_82802ab(chipaddr bios) +uint8_t wait_82802ab(struct flashchip *flash) { uint8_t status; + chipaddr bios = flash->virtual_memory; chip_writeb(0x70, bios); if ((chip_readb(bios) & 0x80) == 0) { // it's busy @@ -132,7 +133,7 @@ int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int programmer_delay(10); // now let's see what the register is - status = wait_82802ab(bios); + status = wait_82802ab(flash); print_status_82802ab(status); if (check_erased_range(flash, page, pagesize)) { @@ -143,26 +144,28 @@ int erase_block_82802ab(struct flashchip *flash, unsigned int page, unsigned int return 0; } -void write_page_82802ab(chipaddr bios, uint8_t *src, - chipaddr dst, int page_size) +int write_page_82802ab(struct flashchip *flash, uint8_t *src, int start, int len) { int i; + chipaddr dst = flash->virtual_memory + start; - for (i = 0; i < page_size; i++) { + for (i = 0; i < len; i++) { /* transfer data from source to destination */ chip_writeb(0x40, dst); chip_writeb(*src++, dst++); - wait_82802ab(bios); + wait_82802ab(flash); } + + /* FIXME: Ignore errors for now. */ + return 0; } int write_82802ab(struct flashchip *flash, uint8_t *buf) { int i; - chipaddr bios = flash->virtual_memory; for (i = 0; i < flash->total_size; i++) { - write_page_82802ab(bios, buf + i * 1024, bios + i * 1024, 1024); + write_page_82802ab(flash, buf + i * 1024, i * 1024, 1024); } return 0; |