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bb7cd0ddf9
u-boot-brain/drivers/spi
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Sourav Poddar bb7cd0ddf9 spi: ti_qspi: Add delay before xfer for am43xx 
Without this delay, write/read is failing.
Looks like, the WIP always remain set and hence a timeout
occurs leading to the error.

Without this patch, device does not get probed also.
Here is the log.

U-Boot#
U-Boot#
U-Boot#
U-Boot# sf probe 0
SF: Unsupported flash IDs: manuf ff, jedec ffff, ext_jedec ffff
Failed to initialize SPI flash at 0:0
U-Boot# sf probe 0

While with this patch, log is
U-Boot# sf probe 0
SF: Detected MX25L51235F with page size 256 Bytes, erase size 64 KiB, total 64 MiB, mapped at 30000000
U-Boot# sf erase 0 0x80000
SF: 524288 bytes @ 0x0 Erased: OK
U-Boot# mw 81000000 0xdededede 0x40000
U-Boot# sf write 81000000 0 0x40000
SF: 262144 bytes @ 0x0 Written: OK
U-Boot# sf read 82000000 0 0x40000
SF: 262144 bytes @ 0x0 Read: OK
U-Boot# md 0x82000000

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-02-18 22:41:09 +05:30
..
altera_spi.c spi: Add GPL-2.0+ SPDX-License-Identifier for missing files 2013-10-16 00:14:01 +05:30
andes_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
andes_spi.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
armada100_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
atmel_dataflash_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
atmel_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
atmel_spi.h spi: atmel_spi: using ip version to check whether has wdrbt 2013-05-12 16:36:11 +02:00
bfin_spi.c spi: bfin_spi: Remove unnecessary test for bus and pins[bus] 2013-12-06 16:06:51 +08:00
bfin_spi6xx.c spi: bfin_spi6xx: Remove unnecessary test for bus and pins[bus] 2013-12-06 16:06:51 +08:00
cf_qspi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
cf_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
davinci_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
davinci_spi.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
exynos_spi.c spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node 2013-12-09 12:22:12 -07:00
fdt_spi.c tegra114: add SPI driver 2013-03-25 09:56:07 -07:00
fsl_espi.c powerpc: Fix CamelCase checkpatch warnings 2013-08-20 09:57:51 -07:00
ftssp010_spi.c spi: Add Faraday SPI controller support 2014-01-11 12:21:30 +05:30
ich.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
ich.h Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
kirkwood_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
Makefile spi: Add Faraday SPI controller support 2014-01-11 12:21:30 +05:30
mpc8xxx_spi.c Coding Style cleanup: replace leading SPACEs by TABs 2013-10-14 16:06:54 -04:00
mpc52xx_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
mxc_spi.c spi: spi-mxc: implement clk control for ECSPI to fix SPI_MODE_3 2014-02-18 22:29:26 +05:30
mxs_spi.c spi: mxs_spi: Configure chipselect after block reset 2013-08-27 19:39:39 +05:30
oc_tiny_spi.c spi: Add GPL-2.0+ SPDX-License-Identifier for missing files 2013-10-16 00:14:01 +05:30
omap3_spi.c spi: omap3: add support for more word lengths 2013-11-12 10:02:44 +01:00
omap3_spi.h spi: omap3: add support for more word lengths 2013-11-12 10:02:44 +01:00
sandbox_spi.c sandbox: spi: Add SPI emulation bus 2013-12-09 12:22:18 -07:00
sh_qspi.c spi: sh_qspi: Add header file that defines the address of registers 2014-01-16 08:07:20 +09:00
sh_spi.c spi: sh_spi: Use sh_spi_clear_bit() instead of open-coded 2014-01-11 12:21:31 +05:30
sh_spi.h sh_spi: Add 4 chip select signals supporting 2012-03-26 10:09:31 +09:00
soft_spi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
spi.c spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node 2013-12-09 12:22:12 -07:00
tegra20_sflash.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
tegra20_slink.c Merge branch 'u-boot/master' into 'u-boot-arm/master' 2013-03-28 18:50:01 +01:00
tegra114_spi.c spi: tegra: clear RDY bit prior to every transfer 2013-12-19 00:00:51 +05:30
ti_qspi.c spi: ti_qspi: Add delay before xfer for am43xx 2014-02-18 22:41:09 +05:30
xilinx_spi.c spi: xilinx: Move timeout calculation out of the loop 2014-02-18 22:24:28 +05:30
xilinx_spi.h spi: Add GPL-2.0+ SPDX-License-Identifier for missing files 2013-10-16 00:14:01 +05:30
zynq_spi.c spi: Add zynq spi controller driver 2013-08-07 01:09:47 +05:30