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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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21
m29f400bt.c
View File

@ -143,7 +143,6 @@ int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
int page_size = flash->page_size;
chipaddr bios = flash->virtual_memory;
//erase_m29f400bt (flash);
msg_cinfo("Programming page:\n ");
/*********************************
*Pages for M29F400BT:
@ -163,41 +162,21 @@ int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
msg_cinfo("total_size/page_size = %d\n", total_size / page_size);
for (i = 0; i < (total_size / page_size) - 1; i++) {
msg_cinfo("%04d at address: 0x%08x\n", i, i * page_size);
if (block_erase_m29f400bt(flash, i * page_size, page_size)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + i * page_size,
bios + i * page_size, page_size);
msg_cinfo("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
msg_cinfo("%04d at address: 0x%08x\n", 7, 0x70000);
if (block_erase_m29f400bt(flash, 0x70000, 32 * 1024)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024);
msg_cinfo("%04d at address: 0x%08x\n", 8, 0x78000);
if (block_erase_m29f400bt(flash, 0x78000, 8 * 1024)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024);
msg_cinfo("%04d at address: 0x%08x\n", 9, 0x7a000);
if (block_erase_m29f400bt(flash, 0x7a000, 8 * 1024)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024);
msg_cinfo("%04d at address: 0x%08x\n", 10, 0x7c000);
if (block_erase_m29f400bt(flash, 0x7c000, 16 * 1024)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024);
msg_cinfo("\n");