From mboxrd@z Thu Jan 1 00:00:00 1970 From: jon-hunter@ti.com (Jon Hunter) Date: Tue, 26 Feb 2013 11:30:27 -0600 Subject: [PATCH 00/14] ARM: OMAP2+: GPMC clean-up and DT update Message-ID: <1361899842-30303-1-git-send-email-jon-hunter@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org While adding device-tree support for NOR memories, it became apparent that there is no common way for configuring various GPMC settings for devices that interface to the GPMC. These settings include bus-width, synchronous/asynchronous mode, burst settings, wait monitoring etc. Therefore, to simplify the GPMC code and add device-tree support for NOR, it was first necessary to consolidate how these settings are programmed. Summary of changes: - Clean-up/simplification of ONENAND initialisation code. - Add a new GPMC structure to unify storage of various GPMC settings (that are non-timing related) for client devices and add a new function to program these settings in a common way. - Migrate initialisation code for existing flash, usb and networking devices to use the new structure and function for GPMC settings. - Add device-tree support for NOR flash memories. - Add additional GPMC timing parameters to GPMC device-tree binding. - Update GPMC NAND and ONENAND device-tree support to retrieve GPMC settings from device-tree. Testing includes: - Boot testing on OMAP2420 H4, OMAP3430 SDP and OMAP4430 SDP with and without device-tree present. - OMAP2420 H4 board has NOR flash and OMAP3430 SDP has NOR, NAND and ONENAND flash. So verified that flash is detected on boot as expected. Note additional patches [1] are required for OMAP2420 H4 and OMAP3430 SDP dts files in order to enable flash memory support. - All of the above boards use GPMC for interfacing to a networking chip and so verified that networking is working wit this series. However, please note that networking is not currently supported on these boards when booting with DT and so networking is only tested without DT. [1] https://github.com/jonhunter/linux/tree/dev-gpmc Jon Hunter (14): ARM: OMAP2+: Simplify code configuring ONENAND devices ARM: OMAP2+: Add variable to store number of GPMC waitpins ARM: OMAP2+: Add structure for storing GPMC settings ARM: OMAP2+: Add function for configuring GPMC settings ARM: OMAP2+: Convert ONENAND to use gpmc_cs_program_settings() ARM: OMAP2+: Convert NAND to use gpmc_cs_program_settings() ARM: OMAP2+: Convert SMC91x to use gpmc_cs_program_settings() ARM: OMAP2+: Convert TUSB to use gpmc_cs_program_settings() ARM: OMAP2+: Don't configure of chip-select options in gpmc_cs_configure() ARM: OMAP2+: Add function to read GPMC settings from device-tree ARM: OMAP2+: Add device-tree support for NOR flash ARM: OMAP2+: Add additional GPMC timing parameters ARM: OMAP2+: Convert NAND to retrieve GPMC settings from DT ARM: OMAP2+: Convert ONENAND to retrieve GPMC settings from DT Documentation/devicetree/bindings/bus/ti-gpmc.txt | 44 ++- Documentation/devicetree/bindings/mtd/gpmc-nor.txt | 98 ++++++ .../devicetree/bindings/mtd/gpmc-onenand.txt | 3 + arch/arm/mach-omap2/gpmc-nand.c | 38 +- arch/arm/mach-omap2/gpmc-onenand.c | 110 +++--- arch/arm/mach-omap2/gpmc-smc91x.c | 30 +- arch/arm/mach-omap2/gpmc.c | 367 +++++++++++++++++--- arch/arm/mach-omap2/gpmc.h | 32 +- arch/arm/mach-omap2/usb-tusb6010.c | 62 ++-- 9 files changed, 605 insertions(+), 179 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nor.txt -- 1.7.10.4