From: Boris Baykov <d...@borisbaykov.com>
Here is the definition of new W25Q256xV chip with new functions pointers
for 4-bytes addressing reads and writes. Erase functions pointers are
changed in their old places. New feature flags for 4-bytes mode added.
Patched files
-------------
flashchips.c
+ added definition for Winbond W25Q256BV/W25Q256FV chips
Signed-off-by: Boris Baykov <d...@borisbaykov.com>, Russia, Jan 2014
[clg: ported from
https://www.flashrom.org/pipermail/flashrom/2015-January/013201.html ]
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
flashchips.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/flashchips.c b/flashchips.c
index 40b6b8e2dbe9..21055e64cd22 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -14588,6 +14588,54 @@ const struct flashchip flashchips[] = {
{
.vendor = "Winbond",
+ .name = "W25Q256.V",
+ .bustype = BUS_SPI,
+ .manufacture_id = WINBOND_NEX_ID,
+ .model_id = WINBOND_NEX_W25Q256_V,
+ .total_size = 32768,
+ .page_size = 256,
+ /* supports SFDP */
+ /* OTP: 1024B total, 256B reserved; read 0x48; write 0x42,
erase 0x44, read ID 0x4B */
+ /* FOUR_BYTE_ADDR: supports 4-bytes addressing mode */
+ .feature_bits = FEATURE_WRSR_WREN | FEATURE_OTP |
FEATURE_4BA_SUPPORT,
+ .four_bytes_addr_funcs =
+ {
+ .enter_4ba = spi_enter_4ba_b7_we, /* enter 4-bytes
addressing mode by CMD B7 + WREN */
+ .read_nbyte = spi_nbyte_read_4ba, /* read from 4-bytes
addressing mode */
+ .program_byte = spi_byte_program_4ba, /* write from
4-bytes addressing mode */
+ .program_nbyte = spi_nbyte_program_4ba /* write from
4-bytes addressing mode */
+ },
+ .tested = TEST_OK_PREW,
+ .probe = probe_spi_rdid,
+ .probe_timing = TIMING_ZERO,
+ .block_erasers =
+ {
+ {
+ .eraseblocks = { {4 * 1024, 8192} },
+ .block_erase = spi_block_erase_20_4ba, /*
erases 4k from 4-bytes addressing mode */
+ }, {
+ .eraseblocks = { {32 * 1024, 1024} },
+ .block_erase = spi_block_erase_52_4ba, /*
erases 32k from 4-bytes addressing mode */
+ }, {
+ .eraseblocks = { {64 * 1024, 512} },
+ .block_erase = spi_block_erase_d8_4ba, /*
erases 64k from 4-bytes addressing mode */
+ }, {
+ .eraseblocks = { {32 * 1024 * 1024, 1} },
+ .block_erase = spi_block_erase_60,
+ }, {
+ .eraseblocks = { {32 * 1024 * 1024, 1} },
+ .block_erase = spi_block_erase_c7,
+ }
+ },
+ .printlock = spi_prettyprint_status_register_plain, /*
TODO: improve */
+ .unlock = spi_disable_blockprotect,
+ .write = spi_chip_write_256,
+ .read = spi_chip_read,
+ .voltage = {2700, 3600},
+ },
+
+ {
+ .vendor = "Winbond",
.name = "W25Q20.W",
.bustype = BUS_SPI,
.manufacture_id = WINBOND_NEX_ID,
--
2.1.4
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