AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/mtd/spi-nor
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Vignesh R aa7eee8a14 mtd: spi-nor: cadence-quadspi: Fix direct mode write timeouts 
Sometimes when writing large size files to flash in direct/memory mapped
mode, it is seen that flash write enable command times out with error:
[  503.146293] cadence-qspi 47040000.ospi: Flash command execution timed out.

This is because, we need to make sure previous direct write operation
is complete by polling for IDLE bit in CONFIG_REG before starting the
next operation.

Fix this by polling for IDLE bit after memory mapped write.

Fixes: a27f2eaf2b ("mtd: spi-nor: cadence-quadspi: Add support for direct access mode")
Cc: stable@vger.kernel.org
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-03 10:01:44 +02:00
..
aspeed-smc.c treewide: Use struct_size() for devm_kmalloc() and friends 2018-06-06 11:15:43 -07:00
atmel-quadspi.c mtd: atmel-quadspi: Remove unneeded pinctrl header 2017-08-01 21:23:21 +02:00
cadence-quadspi.c mtd: spi-nor: cadence-quadspi: Fix direct mode write timeouts 2018-07-03 10:01:44 +02:00
fsl-quadspi.c mtd: spi-nor: fsl-quadspi: add support for ls2080a/ls1080a 2018-05-18 13:12:53 +02:00
hisi-sfc.c mtd: spi-nor: hisi: Avoid generic function names 2018-04-20 22:54:36 +02:00
intel-spi-pci.c mtd: intel-spi: Add Intel Lewisburg PCH SPI super SKU PCI ID 2017-10-30 11:51:18 +01:00
intel-spi-platform.c spi-nor: Add support for Intel SPI serial flash controller 2017-01-03 17:33:36 +00:00
intel-spi.c mtd: spi-nor: intel: provide a range for poll_timout 2018-05-18 12:53:33 +02:00
intel-spi.h spi-nor: Add support for Intel SPI serial flash controller 2017-01-03 17:33:36 +00:00
Kconfig Core changes: 2018-06-07 22:53:15 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mtk-quadspi.c mtd: mtk-nor: modify functions' name more generally 2018-01-14 16:14:06 +01:00
nxp-spifi.c mtd: spi-nor: introduce SPI 1-2-2 and SPI 1-4-4 protocols 2017-05-15 21:56:17 +02:00
spi-nor.c mtd: spi-nor: Add support for EN25QH32 2018-05-18 13:38:53 +02:00
stm32-quadspi.c mtd: spi-nor: stm32-quadspi: explicitly request exclusive reset control 2018-05-18 13:03:36 +02:00