Hi, This version - v7 as compared to previous version, takes care of rounding issues due to the usage of nanoseconds in generic timing routine. All calculations are now in picoseconds. Once all timings are calculated it is converted to nanoseconds so that calculated timing values are compatible with existing custom timing routines (this will help in reverting back to custom routines easily in case of any issues). And documentation has been added on gpmc timings. Also redundant rounding of nand timings has been removed as part of this series. ********************************************************************** Abstract: This series provides a generic gpmc timing calculation routine. There were three peripherals (OneNAND, tusb6010, smc91x) using custom timing calculations, they are migrated to use the generic timing calculation. Such a generic routine would help create a driver out of gpmc platform code, which would be peripheral agnostic and thus lead to DT finally. Input to generic timing calculation routine would be gpmc peripheral timings, output - translated timings that gpmc can understand. Later, to DT'ify, gpmc peripheral timings could be passed through DT. Input timings that has been used here are selected such that it represents those that are present in peripheral timing datasheets. Also this series contains minor cleanups that were low hanging fruits came across upon implementing generic timing routine. One such is credited to Jon Hunter, relevant patch is 1/2 of his series @ http://marc.info/?l=linux-omap&m=134090910321284&w=2 ********************************************************************** Proposed generic routine has been tested on OneNAND (async) on OMAP3EVM rev C (as mainline does not have the OneNAND support for this, local patch were used to test). For other cases of custom timing calculation (tusb6010, smc91x non-muxed, OneNAND sync), generic timing calculation routine was verified by simulating on OMAP3EVM. This series is available @ git://gitorious.org/x0148406-public/linux-kernel.git gpmc-prep-v7 and is based on linux-next (next-20120918) Regards Afzal v7: 1. Use picoseconds throughout generic timing routine to prevent rounding error. 2. Documentation on gpmc timings 3. Remove redundant rounding of nand timings (a new patch) v6: 1. Generic timing calculation, move existing users of custom calculation to use the new generic one 2. Set OneNAND part to async mode before gpmc configuration 3. Move extra delay time user handling to proper patch (3/10 -> 2/10) 4. Modify nand init for OMAP3EVM too as support got added v5: Use flags for sync_read/write, hv, vhf v4: Reorganize OneNAND set_sync/async functions in a better way v3: 1. Refactor OneNAND set_sync/async functions to separate out timing and configurations 2. Handle bool type timings too 3. Swap patches 2 & 3 due to dependency of OneNAND change on newly added bool type timings v2: 1. Make use of timing api for setting clock activation time, and remove direct writing to register for clock activation. 2. Move ensuring that async mode in OneNAND has been setup from set_sync to setup function, improve commit message Afzal Mohammed (10): ARM: OMAP2+: nand: unify init functions ARM: OMAP2+: nand: remove redundant rounding ARM: OMAP2+: gpmc: handle additional timings ARM: OMAP2+: onenand: refactor for clarity ARM: OMAP2+: gpmc: find features by ip rev check ARM: OMAP2+: gpmc: remove cs# in sync clk div calc ARM: OMAP2+: gpmc: generic timing calculation ARM: OMAP2+: onenand: generic timing calculation ARM: OMAP2+: smc91x: generic timing calculation ARM: OMAP2+: tusb6010: generic timing calculation Jon Hunter (1): ARM: OMAP2+: GPMC: Remove unused OneNAND get_freq() platform function Documentation/bus-devices/ti-gpmc.txt | 77 ++++++ arch/arm/mach-omap2/board-devkit8000.c | 8 +- arch/arm/mach-omap2/board-flash.c | 45 ++-- arch/arm/mach-omap2/board-flash.h | 6 +- arch/arm/mach-omap2/board-igep0020.c | 2 +- arch/arm/mach-omap2/board-ldp.c | 4 +- arch/arm/mach-omap2/board-omap3beagle.c | 8 +- arch/arm/mach-omap2/board-omap3evm.c | 8 +- arch/arm/mach-omap2/board-omap3touchbook.c | 8 +- arch/arm/mach-omap2/board-overo.c | 7 +- arch/arm/mach-omap2/board-zoom.c | 5 +- arch/arm/mach-omap2/common-board-devices.c | 45 ---- arch/arm/mach-omap2/common-board-devices.h | 1 - arch/arm/mach-omap2/gpmc-nand.c | 30 +-- arch/arm/mach-omap2/gpmc-onenand.c | 334 +++++++++++-------------- arch/arm/mach-omap2/gpmc-smc91x.c | 43 ++-- arch/arm/mach-omap2/gpmc.c | 383 ++++++++++++++++++++++++++++- arch/arm/mach-omap2/usb-tusb6010.c | 181 ++++---------- arch/arm/plat-omap/include/plat/gpmc.h | 114 +++++++-- arch/arm/plat-omap/include/plat/onenand.h | 8 - 20 files changed, 836 insertions(+), 481 deletions(-) create mode 100644 Documentation/bus-devices/ti-gpmc.txt -- 1.7.12 -- 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
