Changes in v5: - Support dma transfer - Add CONFIG_IS_ENABLED(CLK) limitation - Support spinand devices - Support SFC ver4 ver5 - Using "rockchip, sfc" as compatible id - Get clock from the index to compatible with those case which's clock-names is not parsed - px30 use "rockchip, sfc" as compatible id
Changes in v4: - None
Changes in v3: - Added "rockchip_sfc_adjust_op_work()" function from proposed Linux driver to fix potential issue on hardware. Note I never noticed this issue while testing, so I cannot test if it fixed any specific issue for me. - Updated of-compatible string back to "rockchip,sfc" to match what is currently proposed for upstream driver. The hardware itself has multiple versions but a register is present in the hardware that is read by the driver to set version specific functionality. - Updated px30.dtsi and rk3266-odroid-go2.dts device-trees so that sfc nodes match what is in upstream.
Changes in v2: - Resending due to glitch with patch file truncating final two lines on patch 1/5 and incorrect patch version number on patch 5/5.
Changes in v1: - Reworked code to utilize spi-mem framework, and based it closely off of work in progress code for mainline Linux. - Removed DMA, as it didn't offer much performance benefit for booting (in my test cases), added complexity to the code, and interfered with A-TF. - Updated the names of the bindings to match the work in progress Linux code. - Moved alias to u-boot specific device-tree for Odroid Go Advance. Alias is updated with the spi0 node pointing to the SFC to help the sf command as well as facilitate booting from the SFC. - Note 2 below no longer applies, as rebasing this off of upstream code should allow the device to work for NAND, and by utilizing the spi-mem framework it no longer has to extract the parameters
Chris Morgan (5): spi: rockchip_sfc: add support for Rockchip SFC rockchip: px30: Add support for using SFC rockchip: px30: add the serial flash controller mtd: spi-nor-ids: Add XTX XT25F128B rockchip: px30: add support for SFC for Odroid Go Advance
arch/arm/dts/px30.dtsi | 38 ++ arch/arm/dts/rk3326-odroid-go2-u-boot.dtsi | 17 + arch/arm/dts/rk3326-odroid-go2.dts | 16 + arch/arm/mach-rockchip/px30/px30.c | 64 ++ drivers/mtd/spi/Kconfig | 6 + drivers/mtd/spi/spi-nor-ids.c | 8 + drivers/spi/Kconfig | 8 + drivers/spi/Makefile | 1 + drivers/spi/rockchip_sfc.c | 642 +++++++++++++++++++++ 9 files changed, 800 insertions(+) create mode 100644 drivers/spi/rockchip_sfc.c