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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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2
stm50flw0x0x.c
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@ -93,6 +93,7 @@ int unlock_stm50flw0x0x(struct flashchip *flash)
return 0;
}
/* This function is unused. */
int erase_sector_stm50flw0x0x(struct flashchip *flash, unsigned int sector, unsigned int sectorsize)
{
chipaddr bios = flash->virtual_memory + sector;
@ -116,6 +117,7 @@ int erase_sector_stm50flw0x0x(struct flashchip *flash, unsigned int sector, unsi
return 0;
}
/* FIXME: This function is not a real chip erase function. */
int erase_chip_stm50flw0x0x(struct flashchip *flash, unsigned int addr, unsigned int blocklen)
{
int i;