[U-Boot] [PATCH v6 09/21] sf: params: Add S25FS256S_64K spi flash support

Jagan Teki jagan at openedev.com
Wed Nov 16 05:03:00 CET 2016


Add Spansion S25FS256S_64K spi flash to the list of spi_flash_ids.

In spansion S25FS-S family the physical sectors are grouped as
normal and parameter sectors. Parameter sectors are 4kB in size
with 8 set located at the bottom or top address of a device.
Normal sectors are similar to other flash family with sizes of
64kB or 32 kB.

To erase whole flash using sector erase(D8h or DCh) won't effect
the parameter sectors, so in order to erase these we must use 4K
sector erase commands (20h or 21h) separately.

So better to erase the whole flash using 4K sector erase instead
of detecting these family parts again and do two different erase
operations.

Cc: Yunhui Cui <yunhui.cui at nxp.com>
Cc: Bin Meng <bmeng.cn at gmail.com>
Cc: York Sun <york.sun at nxp.com>
Cc: Vignesh R <vigneshr at ti.com>
Cc: Mugunthan V N <mugunthanvnm at ti.com>
Cc: Michal Simek <michal.simek at xilinx.com>
Cc: Michael Trimarchi <michael at amarulasolutions.com>
Cc: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
Signed-off-by: Jagan Teki <jagan at openedev.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Jagan Teki <jagan at openedev.com>
---
 drivers/mtd/spi/sf_params.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi/sf_params.c b/drivers/mtd/spi/sf_params.c
index d0c978e..6157e29 100644
--- a/drivers/mtd/spi/sf_params.c
+++ b/drivers/mtd/spi/sf_params.c
@@ -98,6 +98,7 @@ const struct spi_flash_info spi_flash_ids[] = {
 	{"S25FL128S_64K",  INFO(0x012018, 0x4d01,  64 * 1024,   256, RD_FULL | WR_QPP) },
 	{"S25FL256S_256K", INFO(0x010219, 0x4d00, 256 * 1024,   128, RD_FULL | WR_QPP) },
 	{"S25FL256S_64K",  INFO(0x010219, 0x4d01,  64 * 1024,   512, RD_FULL | WR_QPP) },
+	{"S25FS256S_64K",  INFO6(0x010219, 0x4d0181, 64 * 1024, 512, RD_FULL | WR_QPP | SECT_4K) },
 	{"S25FS512S",      INFO(0x010220, 0x4D00, 128 * 1024,   512, RD_FULL | WR_QPP) },
 	{"S25FL512S_256K", INFO(0x010220, 0x4d00, 256 * 1024,   256, RD_FULL | WR_QPP) },
 	{"S25FL512S_64K",  INFO(0x010220, 0x4d01,  64 * 1024,  1024, RD_FULL | WR_QPP) },
-- 
1.9.1



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