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Add support for AT45DB321C

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It seems like this model is one-of-a-kind... it shares some properties
with the older versions of the AT45DB series as well as with new ones.

Corresponding to flashrom svn r1724.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Stefan Tauner
2013-08-27 18:02:12 +00:00
parent db4e87dccf
commit fdc4f7ebb9
3 changed files with 81 additions and 6 deletions
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32
flashchips.c
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@ -2550,11 +2550,37 @@ const struct flashchip flashchips[] = {
.total_size = 4224 /* No power of two sizes */,
.page_size = 528 /* No power of two sizes */,
/* does not support EWSR nor WREN and has no writable status register bits whatsoever */
.tested = TEST_BAD_REW,
/* OTP: 128B total, 64B pre-programmed; read 0x77 (4 dummy bytes); write 0x9A (via buffer) */
.feature_bits = FEATURE_OTP,
.tested = TEST_UNTESTED,
.probe = probe_spi_rdid,
.probe_timing = TIMING_ZERO,
.write = NULL,
.read = NULL /* Incompatible read */,
.block_erasers =
{
{
.eraseblocks = { {528, 8192} },
.block_erase = spi_erase_at45db_page,
}, {
.eraseblocks = { {8 * 528, 8192/8} },
.block_erase = spi_erase_at45db_block,
}, /* Although the datasheets describes sectors (which can be write protected)
* there seems to be no erase functions for them.
{
.eraseblocks = {
{8 * 528, 1},
{120 * 528, 1},
{128 * 528, 63},
},
.block_erase = spi_erase_at45db_sector
}, */ {
.eraseblocks = { {4224 * 1024, 1} },
.block_erase = spi_erase_at45db_chip,
}
},
.printlock = spi_prettyprint_status_register_at45db, /* Bit 0 is undefined, no lockdown */
.gran = write_gran_528bytes,
.write = spi_write_at45db,
.read = spi_read_at45db_e8, /* 3 address and 4 dummy bytes */
.voltage = {2700, 3600},
},