On 30 October 2016 at 11:46, Jagan Teki jagan@openedev.com wrote:
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@nxp.com Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: York Sun york.sun@nxp.com Cc: Vignesh R vigneshr@ti.com Cc: Mugunthan V N mugunthanvnm@ti.com Cc: Michal Simek michal.simek@xilinx.com Cc: Michael Trimarchi michael@amarulasolutions.com Cc: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Jagan Teki jagan@openedev.com
drivers/mtd/spi/sf_params.c | 1 + 1 file changed, 1 insertion(+)
Reviewed-by: Simon Glass sjg@chromium.org