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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
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6
spi.c
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@ -262,12 +262,6 @@ int spi_chip_write_256(struct flashchip *flash, uint8_t *buf)
{
int ret;
msg_pinfo("Erasing flash before programming... ");
if (erase_flash(flash)) {
msg_perr("ERASE FAILED!\n");
return -1;
}
msg_pinfo("done.\n");
msg_pinfo("Programming flash... ");
ret = spi_chip_write_256_new(flash, buf, 0, flash->total_size * 1024);
if (!ret)