openwrt/flashrom
1
0
Fork 0
mirror of https://review.coreboot.org/flashrom.git synced 2025-04-27 23:22:37 +02:00
Code Issues Releases Wiki Activity

Fix Winbond W29EE011, W29EE012, W29C010M, W29C011A probing

Browse Source 
According to the datasheets probe_w29ee011 is the only valid probe
function for those chips, but we have reports where those chips
were only detected with probe_jedec, and thus we assume that our
datasheets only cover an earlier stepping.

Corresponding to flashrom svn r1391.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Carl-Daniel Hailfinger 2011-07-26 14:18:52 +00:00
parent a34d719037
commit 2e88a9f4f0
2 changed files with 31 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
flashchips.c
View File

@ -8251,6 +8251,29 @@ const struct flashchip flashchips[] = {
},
{
.vendor = "Winbond",
.name = "W29C010(M)/W29C011A/W29EE011/W29EE012-old",
.bustype = CHIP_BUSTYPE_PARALLEL,
.manufacture_id = WINBOND_ID,
.model_id = WINBOND_W29C010,
.total_size = 128,
.page_size = 128,
.feature_bits = FEATURE_LONG_RESET,
.tested = TEST_OK_PRE,
.probe = probe_w29ee011,
.probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (w29ee011.c) */
.block_erasers =
{
{
.eraseblocks = { {128 * 1024, 1} },
.block_erase = erase_chip_block_jedec,
}
},
.write = write_jedec,
.read = read_memmapped,
},
{/* W29EE011, W29EE012, W29C010M, W29C011A do not support probe_jedec according to the datasheet, but it works for newer(?) steppings. */
.vendor = "Winbond",
.name = "W29C010(M)/W29C011A/W29EE011/W29EE012",
.bustype = CHIP_BUSTYPE_PARALLEL,
@ -8321,29 +8344,6 @@ const struct flashchip flashchips[] = {
.voltage = {4500, 5500},
},
{
.vendor = "Winbond",
.name = "W29C010(M)/W29C011A/W29EE011/W29EE012",
.bustype = CHIP_BUSTYPE_PARALLEL,
.manufacture_id = WINBOND_ID,
.model_id = WINBOND_W29C010,
.total_size = 128,
.page_size = 128,
.feature_bits = FEATURE_LONG_RESET,
.tested = TEST_OK_PRE,
.probe = probe_w29ee011,
.probe_timing = TIMING_IGNORED, /* routine doesn't use probe_timing (w29ee011.c) */
.block_erasers =
{
{
.eraseblocks = { {128 * 1024, 1} },
.block_erase = erase_chip_block_jedec,
}
},
.write = write_jedec,
.read = read_memmapped,
},
{
.vendor = "Winbond",
.name = "W39L040",

13
w29ee011.c
View File

@ -22,16 +22,19 @@
#include "flash.h"
#include "chipdrivers.h"
/* According to the Winbond W29EE011, W29EE012, W29C010M, W29C011A
* datasheets this is the only valid probe function for those chips.
*/
int probe_w29ee011(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
uint8_t id1, id2;
if (!chip_to_probe || strcmp(chip_to_probe, "W29EE011")) {
msg_cdbg("Probing disabled for Winbond W29EE011 because "
"the probing sequence puts the AMIC A49LF040A in "
"a funky state. Use 'flashrom -c W29EE011' if you "
"have a board with this chip.\n");
if (!chip_to_probe || strcmp(chip_to_probe, flash->name)) {
msg_cdbg("Old Winbond W29* probe method disabled because "
"the probing sequence puts the AMIC A49LF040A in "
"a funky state. Use 'flashrom -c %s' if you "
"have a board with such a chip.\n", flash->name);
return 0;
}