[U-Boot] [PATCH v2 0/3] mtd: nand: omap: fix ecc-layout
Pekon Gupta
pekon at ti.com
Fri Feb 14 18:01:45 CET 2014
*changes v1 -> v2*
[PATCH 1/3] fix oobfree->offset calculation + adjust for reserved-marker of last sector
[PATCH 2/3] <new patch>
[PATCH 3/3] refactor code as suggested by Brian Norris <computersforpeace at gmail.com>
*original v1*
[PATCH 1/2] http://lists.infradead.org/pipermail/linux-mtd/2013-December/050946.html
[PATCH 2/2] http://lists.infradead.org/pipermail/linux-mtd/2013-December/050945.html
This patch-set is tested on AM335x-EVM using following end-to-end boot sequence
with appropriate u-boot configs [1]
(BCH8_HW) (BCH8_SW) (BCH8_SW) (BCH8_SW) (UBIFS)
ROM ---------> SPL ---------> U-Boot ---------> Kernel ---------> File-System
(BCH8_HW) (BCH8_HW) (BCH8_HW) (BCH8_HW) (UBIFS)
ROM ---------> SPL ---------> U-Boot ---------> Kernel ---------> File-System
Test1: flash ubi image from u-boot and boot the kernel
u-boot> mw 0x82000000 0xff <u-boot.img size aligned to NAND block boundary>
u-boot> fatload mmc 0 0x82000000 u-boot.img
u-boot> nand erase <u-boot_offset> <u-boot.img size>
u-boot> nand write 0x82000000 <u-boot_offset> <u-boot.img size>
u-boot> setenv bootargs 'console=ttyO0,115200n8 noinitrd mem=256M \
root=ubi0 rw rootfstype=ubifs ubi.mtd=<mtdpart-of-rootfs>,\
<page-size> ip=off init=/init'
u-boot> bootm <kernel_offset>
Test2: update u-boot.img from kernel and re-boot
kernel> flash_erase /dev/<mtdpart-of-u-boot> 0 0
kernel> nandwrite -s 0 /dev/<mtdpart-of-u-boot> u-boot.img
kernel> reboot
[1] u-boot configurations to match above ecc-layout are documented at
https://processors.wiki.ti.com/index.php/Linux_Core_NAND_User%27s_Guide
Pekon Gupta (3):
mtd: nand: omap: fix ecclayout->oobfree->offset
mtd: nand: omap: fix ecclayout->oobfree->length
mtd: nand: omap: fix ecclayout to be in sync with u-boot NAND driver
drivers/mtd/nand/omap2.c | 61 +++++++++++++++++++++++++++++++-----------------
1 file changed, 40 insertions(+), 21 deletions(-)
--
1.8.5.1.163.gd7aced9
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