On Fri, 12 Jan 2018 14:11:05 +0100 Ladislav Michl <ladis@xxxxxxxxxxxxxx> wrote: > this patch serie updates OMAP2+ OneNAND driver to the present times, making > it fully DT configurable, using libgpio and dmaengine apis. > > Please note that unlike previous driver version, which basically ignored > DT specified timings, this one relies on it, so it is important to get > it right in your DT (dumping it from previous kernel version). > > In case synchronous timings is requested, it is okay to specify timings > for the slowest chip ever used for you board as it is evetually optimized > after chip probe. > > Original driver used DMA only if user specified INT gpio in platform > data, now DMA is used unconditionally and PIO mode is used as fallback. > > In case anyone wants to give it a try, few DT related changes are needed: > - onenand node needs 'ti,omap2-onenand' compatible (for mailine boards this is > done in patch 2) > - to use INT pin, int-gpios needs to be specified. Roger, Tony, are you happy with this version? If this is the case, I'll queue all patches to my nand/next branch (after merging Roger's immutable branch in). > > Most notable changes from v3: > - added dmaengine patches by Peter Ujfalusi > - added dt bindings documentation > - added cleanup patches > - DMA enabled by default > > Most notable changes from v4: > - collected tags > - used INT pin name properly > - hopefully all comments taken into account > > Most notable changes from v5: > - as this serie is expected to be merged via single tree patches 13 and 14 > were squashed together not to break bisecting. > - patch 16 was dropped. > > This patchset depends on an immutable commit: > > The following changes since commit 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323: > > Linux 4.15-rc1 (2017-11-26 16:01:47 -0800) > > are available in the git repository at: > > https://github.com/rogerq/linux.git for-v4.16/gpmc-omap-immutable > > for you to fetch changes up to c18a7ac3398d0cef29749f9568666db8321aa4c9: > > memory: omap-gpmc: Make 'bank-width' property optional (2017-12-01 15:37:49 +0200) > > > Ladislav Michl (12): > dt-bindings: mtd: gpmc-onenand: Update properties description > ARM: dts: OMAP2+: Add compatible property to onenand node > ARM: dts: omap3-igep: Update onenand node timings > mtd: onenand: omap2: Remove regulator support > mtd: onenand: omap2: Remove skip initial unlocking support > mtd: onenand: omap2: Remove partitioning support from platform data > mtd: onenand: omap2: Account waiting time as waiting on IO > mtd: onenand: omap2: Unify OMAP2 and OMAP3 DMA implementation > mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific > mtd: onenand: omap2: Decouple DMA enabling from INT pin availability > mtd: onenand: omap2: Configure driver from DT > ARM: OMAP2+: Remove gpmc-onenand > > Peter Ujfalusi (2): > mtd: onenand: omap2: Simplify the DMA setup for various paths > mtd: onenand: omap2: Convert to use dmaengine for memcpy > > .../devicetree/bindings/mtd/gpmc-onenand.txt | 6 +- > arch/arm/boot/dts/omap2420-n8x0-common.dtsi | 1 + > arch/arm/boot/dts/omap3-igep.dtsi | 30 +- > arch/arm/boot/dts/omap3-n900.dts | 1 + > arch/arm/boot/dts/omap3-n950-n9.dtsi | 1 + > arch/arm/boot/dts/omap3430-sdp.dts | 1 + > arch/arm/mach-omap2/Makefile | 3 - > arch/arm/mach-omap2/gpmc-onenand.c | 409 --------------- > drivers/memory/omap-gpmc.c | 158 ++++-- > drivers/mtd/onenand/Kconfig | 4 +- > drivers/mtd/onenand/omap2.c | 576 ++++++++------------- > include/linux/omap-gpmc.h | 28 + > include/linux/platform_data/mtd-onenand-omap2.h | 34 -- > 13 files changed, 386 insertions(+), 866 deletions(-) > delete mode 100644 arch/arm/mach-omap2/gpmc-onenand.c > delete mode 100644 include/linux/platform_data/mtd-onenand-omap2.h > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
