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Maxime Ripard a9395cba08 mtd: nand: pxa3xx: Fix PIO FIFO draining 
commit 8dad0386b9 upstream.

The NDDB register holds the data that are needed by the read and write
commands.

However, during a read PIO access, the datasheet specifies that after each 32
bytes read in that register, when BCH is enabled, we have to make sure that the
RDDREQ bit is set in the NDSR register.

This fixes an issue that was seen on the Armada 385, and presumably other mvebu
SoCs, when a read on a newly erased page would end up in the driver reporting a
timeout from the NAND.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2015-03-26 15:06:56 +01:00
..
bcm47xxnflash mtd: bcm47xxnflash: Use devm_kzalloc 2013-11-06 23:32:56 -08:00
gpmi-nand mtd: gpmi: add sanity check when mapping DMA for read_buf/write_buf 2014-01-27 21:55:03 -08:00
Kconfig mtd: nand: davinci: reuse driver for Keystone arch 2014-01-03 11:22:26 -08:00
Makefile mtd: remove alauda driver 2013-08-30 21:51:57 +01:00
ams-delta.c mtd: nand: ams-delta: remove unnecessary platform_set_drvdata() 2013-08-05 20:58:30 +01:00
atmel_nand.c mtd: atmel_nand: Disable subpage NAND write when using Atmel PMECC 2014-05-13 13:32:54 +02:00
atmel_nand_ecc.h mtd: at91: atmel_nand: add Programmable Multibit ECC controller support 2012-07-06 18:23:25 +01:00
atmel_nand_nfc.h mtd: atmel_nand: add Nand Flash Controller (NFC) support 2013-08-05 21:07:41 +01:00
au1550nd.c mtd: au1550nd: Remove unnecessary OOM messages 2014-01-03 11:22:29 -08:00
bf5xx_nand.c mtd: bf5xx_nand: Remove unnecessary OOM messages 2014-01-03 11:22:29 -08:00
cafe_nand.c mtd: cafe_nand: Remove unnecessary OOM messages 2014-01-03 11:22:29 -08:00
cmx270_nand.c mtd: cmx270_nand: Remove unnecessary OOM messages 2014-01-03 11:22:29 -08:00
cs553x_nand.c mtd: cs553x_nand: Remove unnecessary OOM messages 2014-01-03 11:22:29 -08:00
davinci_nand.c mtd: davinci_nand: Remove unnecessary OOM messages 2014-01-03 11:22:30 -08:00
denali.c mtd: denali: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE 2014-01-11 12:20:15 -08:00
denali.h mtd: denali: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE 2014-01-11 12:20:15 -08:00
denali_dt.c mtd: denali_dt: Use devm_clk_get() 2014-01-03 11:22:27 -08:00
denali_pci.c mtd: denali: Drop print of build date/time 2014-01-09 08:52:48 -08:00
diskonchip.c mtd: diskonchip: mem resource name is not optional 2014-05-13 13:32:54 +02:00
docg4.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
fsl_elbc_nand.c mtd: eLBC NAND: fix subpage write support 2014-07-09 11:18:24 -07:00
fsl_ifc_nand.c mtd: nand: Update mtd.name assignment type to u64 for IFC, eLBC 2014-01-11 12:07:35 -08:00
fsl_upm.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
fsmc_nand.c mtd: fsmc_nand: use dev_warn() instead of printk() 2014-01-07 10:07:03 -08:00
gpio.c mtd: nand-gpio: don't waste memory for OF failure 2014-01-07 10:07:34 -08:00
jz4740_nand.c mtd: jz4740_nand: Remove unnecessary OOM messages 2014-01-03 11:22:30 -08:00
lpc32xx_mlc.c mtd: lpc32xx_mlc: Remove unnecessary OOM messages 2014-01-07 10:06:58 -08:00
lpc32xx_slc.c mtd: lpc32xx_slc: Remove unnecessary OOM messages 2014-01-07 10:07:00 -08:00
mpc5121_nfc.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-30 17:07:18 -08:00
mxc_nand.c mtd: mxc-nand: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE 2014-01-11 12:20:06 -08:00
nand_base.c mtd: nand: fix off-by-one read retry mode counting 2014-02-14 12:08:20 -08:00
nand_bbt.c mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES 2013-11-06 23:33:14 -08:00
nand_bch.c mtd: cleanup style on pr_debug messages 2011-09-11 15:02:16 +03:00
nand_ecc.c mtd: nane: print source of error message 2013-02-04 09:27:19 +02:00
nand_ids.c mtd: nand: add Intel manufacturer ID 2014-01-20 11:30:52 -08:00
nandsim.c MTD merge for 3.13 2013-11-14 12:31:43 +09:00
ndfc.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
nuc900_nand.c mtd: nuc900_nand: NULL dereference in nuc900_nand_enable() 2014-05-13 13:32:54 +02:00
omap2.c mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc() 2014-09-17 09:19:28 -07:00
orion_nand.c mtd: orion_nand: use dev_err() instead of printk() 2014-01-07 10:07:31 -08:00
pasemi_nand.c mtd: pasemi_nand.c: remove superfluous name cast 2014-01-03 11:22:09 -08:00
plat_nand.c mtd: plat_nand: remove redundant return value check of platform_get_resource() 2014-01-20 11:37:29 -08:00
pxa3xx_nand.c mtd: nand: pxa3xx: Fix PIO FIFO draining 2015-03-26 15:06:56 +01:00
r852.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
r852.h mtd: r852: remove useless pci powerup/down from suspend/resume routines 2010-10-25 01:32:21 +01:00
s3c2410.c mtd: s3c2410: Merge plat/regs-nand.h into s3c2410.c 2014-01-22 17:31:57 -08:00
sh_flctl.c mtd: sh_flctl: Remove unnecessary OOM messages 2014-01-07 10:07:02 -08:00
sharpsl.c mtd: sharpsl: use dev_err() instead of printk() 2014-01-07 10:07:31 -08:00
sm_common.c mtd: nand: refactor chip->block_markbad interface 2013-08-30 16:47:52 +01:00
sm_common.h mtd: sm_common: split smartmedia and xD table 2010-05-14 01:03:46 +01:00
socrates_nand.c MTD merge for 3.13 2013-11-14 12:31:43 +09:00
tmio_nand.c mtd: tmio_nand: Use devm_*() functions 2014-01-03 11:22:28 -08:00
txx9ndfmc.c mtd: txx9ndfmc: Remove unnecessary OOM messages 2014-01-03 11:22:30 -08:00
xway_nand.c mtd: lantiq: Add NAND support on Lantiq XWAY SoC. 2012-09-29 15:05:18 +01:00