[PATCH v6 0/3] omap3 nand: cleanup exiting platform related code

Sukumar Ghorai s-ghorai at ti.com
Fri Jul 9 03:25:05 EDT 2010


   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(-)



More information about the linux-mtd mailing list