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AT45DB041D spi flash.

>commit f4f51a8ff894d34eb332f0d11f6c73c7bf509848
>Author: Jagannadha Sutradharudu Teki <jaganna at xilinx.com>
>Date:   Wed Oct 2 19:36:58 2013 +0530
>
>    sf: probe: Add support for erase sector selection flag
>    
>    SECT_4K, SECT_32K and SECT_64K opeartions are performed to
>    to specific flash by adding a SECT* flag on respective
>    spi_flash_params.flag param.
>    
>Signed-off-by: Jagannadha Sutradharudu Teki <jaganna at xilinx.com>

Prior to this patch erase size was same as sector size; which is 64 * 1024 (64k).
This 64K was replaced with 4k and timeout for erase started.

If following patch is applied write/erase works well (See bottom) on top of
above commit. But similar change on latest git head still has some problem
with spi erase.

Thanks
Yogi

diff --git a/drivers/mtd/spi/spi_flash_probe.c b/drivers/mtd/spi/spi_flash_probe.c
index 9c2e115..9e1c4c5 100644
--- a/drivers/mtd/spi/spi_flash_probe.c
+++ b/drivers/mtd/spi/spi_flash_probe.c
@@ -41,7 +41,7 @@ static const struct spi_flash_params spi_flash_params_table[] = {
 #ifdef CONFIG_SPI_FLASH_ATMEL          /* ATMEL */
        {"AT45DB011D",     0x1f2200, 0x0,       64 * 1024,     4,              SECT_4K},
        {"AT45DB021D",     0x1f2300, 0x0,       64 * 1024,     8,              SECT_4K},
-       {"AT45DB041D",     0x1f2400, 0x0,       64 * 1024,     8,              SECT_4K},
+       {"AT45DB041D",     0x1f2400, 0x0,       64 * 1024,     8,              0},
        {"AT45DB081D",     0x1f2500, 0x0,       64 * 1024,    16,              SECT_4K},
        {"AT45DB161D",     0x1f2600, 0x0,       64 * 1024,    32,              SECT_4K},
        {"AT45DB321D",     0x1f2700, 0x0,       64 * 1024,    64,              SECT_4K},