DISCLAIMER: Use at your own risk. Status: For testing only! Version: V2 Title: Enable RK3066 NANDC for MK808. The majority of Rockchip devices use a closed source FTL driver to reduce wear leveling. This patch serie proposes an experimental raw NAND controller driver for basic tasks in order to get the bindings and the nodes accepted for in the dts files. What does it do: On module load this driver will reserve its resources. After initialization the MTD framework will then try to detect the type and number of NAND chips. When all conditions are met, it registers it self as MTD device. This driver is then ready to receive user commands such as to read and write NAND pages. Test examples: # dd if=/dev/mtd0 of=dd.bin bs=8192 count=4 # nanddump -a -l 32768 -f nanddump.bin /dev/mtd0 Not tested: NANDC version 9. NAND raw write. RK3066 still has no support for Uboot. Any write command would interfere with data structures made by the boot loader. Etc. Problems: No bad block support. Most devices use a FTL bad block map with tags that must be located on specific page locations which is outside the scope of the raw MTD framework. hynix_nand_init() add extra option NAND_BBM_LASTPAGE for H27UCG8T2ATR-BC. No partition support. A FTL driver will store at random locations and a linear user specific layout does not fit within the generic character of this basic driver. Driver assumes that IO pins are correctly set by the boot loader. Fixed timing setting. RK3228A/RK3228B compatibility version 701 unknown RV1108 nand version unknown Etc. Todo: MLC ? ARM vs arm64 testing move BCH strengths and array size to struct rk_nandc_data Changes V2: Include suggestions by Miquel Raynal Include suggestions by Rob Herring Kconfig: add supported Socs rk3*.dtsi change compatible remove #address-cells and #size-cells; swap clock swap clock-names rockchip,nand-controller.yaml add "rockchip,idb-res-blk-num" property add hash change compatible change doc name swap clock-names rockchip-nand-controller.c add fls(8 * 1024) original intention add more struct rk_nandc_data types add rk_nandc_hw_ecc_setup_helper() add "rockchip,idb-res-blk-num" property add struct rk_nandc_cap add struct rk_nandc_reg_offset change copyright text change dev_err to dev_dbg in rk_nandc_probe() change driver name change of_rk_nandc_match compatible and data change rk_nandc_hw_syndrome_ecc_read_page() error message check return status rk_nandc_hw_syndrome_ecc_read_page() check return status rk_nandc_hw_syndrome_ecc_write_page() fix ./scripts/checkpatch.pl --strict issues fix arm64 compile (untested) fix rk_nandc_chip_init nand_scan move empty line above MODULE_LICENSE() move NAND_ECC_HW below NAND_ECC_HW_SYNDROME move vars from controller to chip structure relocate init_completion() remove nand_to_mtd in rk_nandc_attach_chip() remove page pointer write tag for bootrom rename all defines to RK_NANDC_* rename rk_nand_ctrl replace bank_base calculations by defines replace g_nandc_info[id] replace kmalloc by devm_kzalloc replace uint8_t by u8 replace uint32_t bu u32 replace writel by writel_relaxed replace RK_NANDC_NUM_BANKS by ctrl->cap->max_cs Chris Zhong (1): ARM: dts: rockchip: add nandc node for rk3066a/rk3188 Dingqiang Lin (2): arm64: dts: rockchip: add nandc node for px30 arm64: dts: rockchip: add nandc node for rk3308 Jianqun Xu (1): ARM: dts: rockchip: add nandc nodes for rk3288 Johan Jonker (2): dt-bindings: mtd: add rockchip nand controller bindings ARM: dts: rockchip: rk3066a-mk808: enable nandc node Jon Lin (1): ARM: dts: rockchip: add nandc node for rv1108 Wenping Zhang (1): ARM: dts: rockchip: add nandc node for rk322x Yifeng Zhao (1): mtd: rawnand: rockchip: Add NAND controller driver Zhaoyifeng (1): arm64: dts: rockchip: add nandc node for rk3368 .../bindings/mtd/rockchip,nand-controller.yaml | 92 ++ arch/arm/boot/dts/rk3066a-mk808.dts | 11 + arch/arm/boot/dts/rk322x.dtsi | 9 + arch/arm/boot/dts/rk3288.dtsi | 20 + arch/arm/boot/dts/rk3xxx.dtsi | 9 + arch/arm/boot/dts/rv1108.dtsi | 9 + arch/arm64/boot/dts/rockchip/px30.dtsi | 12 + arch/arm64/boot/dts/rockchip/rk3308.dtsi | 9 + arch/arm64/boot/dts/rockchip/rk3368.dtsi | 9 + drivers/mtd/nand/raw/Kconfig | 9 + drivers/mtd/nand/raw/Makefile | 1 + drivers/mtd/nand/raw/rockchip-nand-controller.c | 1307 ++++++++++++++++++++ 12 files changed, 1497 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml create mode 100644 drivers/mtd/nand/raw/rockchip-nand-controller.c -- 2.11.0
