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Intel 28F004/28F400 support

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Remove blockwise write for i82802ab chips. It will be reintroduced
in post-0.9.2 in a generic way. This is needed to fix
FWH-like chips with non-uniform sectors.

These are:
  Intel 28F001
  Sharp LHF00L04
  ST M50FW002
  ST M50LPW116

Corresponding to flashrom svn r991.

Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Michael Karcher
2010-04-03 10:27:08 +00:00
parent 253101e69e
commit ad0010a67a
4 changed files with 132 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
82802ab.c
View File

@ -48,6 +48,7 @@ int probe_82802ab(struct flashchip *flash)
chipaddr bios = flash->virtual_memory;
uint8_t id1, id2;
uint8_t flashcontent1, flashcontent2;
int shifted = (flash->feature_bits & FEATURE_ADDR_SHIFTED) != 0;
/* Reset to get a clean state */
chip_writeb(0xFF, bios);
@ -57,8 +58,8 @@ int probe_82802ab(struct flashchip *flash)
chip_writeb(0x90, bios);
programmer_delay(10);
id1 = chip_readb(bios);
id2 = chip_readb(bios + 0x01);
id1 = chip_readb(bios + (0x00 << shifted));
id2 = chip_readb(bios + (0x01 << shifted));
/* Leave ID mode */
chip_writeb(0xFF, bios);
@ -71,8 +72,8 @@ int probe_82802ab(struct flashchip *flash)
msg_cdbg(", id1 parity violation");
/* Read the product ID location again. We should now see normal flash contents. */
flashcontent1 = chip_readb(bios);
flashcontent2 = chip_readb(bios + 0x01);
flashcontent1 = chip_readb(bios + (0x00 << shifted));
flashcontent2 = chip_readb(bios + (0x01 << shifted));
if (id1 == flashcontent1)
msg_cdbg(", id1 is normal flash content");
@ -178,44 +179,25 @@ void write_page_82802ab(chipaddr bios, uint8_t *src,
int write_82802ab(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;
uint8_t *tmpbuf = malloc(page_size);
if (!tmpbuf) {
msg_cerr("Could not allocate memory!\n");
exit(1);
if (erase_flash(flash)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
msg_cinfo("Programming page: \n");
for (i = 0; i < total_size / page_size; i++) {
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", i, i * page_size);
/* Auto Skip Blocks, which already contain the desired data
* Faster, because we only write, what has changed
* More secure, because blocks, which are excluded
* (with the exclude or layout feature)
* or not erased and rewritten; their data is retained also in
* sudden power off situations
*/
chip_readn(tmpbuf, bios + i * page_size, page_size);
if (!memcmp((void *)(buf + i * page_size), tmpbuf, page_size)) {
msg_cdbg("SKIPPED\n");
continue;
}
msg_cinfo("Programming at: ");
for (i = 0; i < flash->total_size; i++) {
if ((i & 0x3) == 0)
msg_cinfo("address: 0x%08lx", (unsigned long)i * 1024);
/* erase block by block and write block by block; this is the most secure way */
if (erase_block_82802ab(flash, i * page_size, page_size)) {
msg_cerr("ERASE FAILED!\n");
return -1;
}
write_page_82802ab(bios, buf + i * page_size,
bios + i * page_size, page_size);
write_page_82802ab(bios, buf + i * 1024, bios + i * 1024, 1024);
if ((i & 0x3) == 0)
msg_cinfo("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
msg_cinfo("DONE!\n");
free(tmpbuf);
return 0;
}