The following set of patches applies on top of for-next branch.
http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git
Patches verified on: omap3430-SDP, omap3630-sdp, zoom3 and beagle board
And these are the patches required to address the following input -
1. The NAND driver needs to stop tinkering with the GPMC registers
The omap General Purpose Memory Controller (GPMC) registers are omap
specific, and not driver specific. Tinkering with these registers can
cause issues with the other devices on the GPMC.
2. Passing hardcoded GPMC_CS0_BASE needs to go from the board files
Passing hardcoded GPMC virtual addressess is sure way to mess up things.
This should all become unnecessary once the NAND drivers stops messing
with the GPMC registers directly.
Discussion:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg27630.html
Changes in this series -
gpmc_hwcontrol() function in gpmc.c, break into various small function.
Unused function removed.
v5: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg30305.html
Functions related to ecc and prefetch engine are optimized.
v4: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg29458.html
Few functionality was missing like - There should be some locking as only
one chipselect can use the ECC or prefetch engine at a time. If you have
NAND in two chipselects, bad things would happen.
v3: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg28715.html
Additionally, it was needed to implement more functions for the platform
init code to use.
v2: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg28467.html
v1: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg28164.html
Sukumar Ghorai (3):
omap3 gpmc: functionality enhancement
omap3 nand: cleanup virtual address usages
omap3 nand: fix issue in board file to detect nand
arch/arm/mach-omap2/board-cm-t35.c | 20 +--
arch/arm/mach-omap2/board-devkit8000.c | 25 +---
arch/arm/mach-omap2/board-omap3beagle.c | 24 +---
arch/arm/mach-omap2/board-omap3touchbook.c | 25 +---
arch/arm/mach-omap2/board-overo.c | 24 +---
arch/arm/mach-omap2/board-sdp-flash.c | 5 -
arch/arm/mach-omap2/gpmc-nand.c | 38 +---
arch/arm/mach-omap2/gpmc.c | 285 ++++++++++++++++++++++++++--
arch/arm/plat-omap/include/plat/gpmc.h | 42 ++++-
arch/arm/plat-omap/include/plat/nand.h | 6 +-
drivers/mtd/nand/omap2.c | 218 ++++++----------------
11 files changed, 371 insertions(+), 341 deletions(-)
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