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Add support for the Eon EN29LV640B chip

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This chip needs special command sequences in 8 bit mode. Also, 8 bit
programming needs actually 16bit double byte program.

The chip is found on the Bifferos Bifferboard, for example.

Corresponding to flashrom svn r1521.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Rudolf Marek
2012-04-14 22:51:40 +00:00
committed by Uwe Hermann
parent 1525b2ad16
commit 47eff6b5b4
5 changed files with 178 additions and 3 deletions
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34
flashchips.c
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@ -3530,7 +3530,7 @@ const struct flashchip flashchips[] = {
.block_erasers =
{
{
.eraseblocks = {
.eraseblocks = {
{16 * 1024, 1},
{8 * 1024, 2},
{32 * 1024, 1},
@ -3562,7 +3562,7 @@ const struct flashchip flashchips[] = {
.block_erasers =
{
{
.eraseblocks = {
.eraseblocks = {
{64 * 1024, 3},
{32 * 1024, 1},
{8 * 1024, 2},
@ -3579,6 +3579,36 @@ const struct flashchip flashchips[] = {
.voltage = {4500, 5500},
},
{
.vendor = "Eon",
.name = "EN29LV640B",
.bustype = BUS_PARALLEL,
.manufacture_id = EON_ID,
.model_id = EON_EN29LV640B,
.total_size = 8192,
.page_size = 8192,
.feature_bits = 0,
.tested = TEST_OK_PREW,
.probe = probe_en29lv640b,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info specified */
.block_erasers =
{
{
.eraseblocks = {
{8 * 1024, 8},
{64 * 1024, 127},
},
.block_erase = block_erase_en29lv640b,
}, {
.eraseblocks = { {8 * 1024 * 1024, 1} },
.block_erase = block_erase_chip_en29lv640b,
},
},
.write = write_en29lv640b,
.read = read_memmapped,
.voltage = {2700, 3600},
},
{
.vendor = "Fujitsu",
.name = "MBM29F004BC",