On 3/7/22 09:34, Andre Przywara wrote:
The Allwinner F1C100 SoC didn't see much love since its initial merge in 2018: the originally submitted .dts files were very basic, and didn't cover such simple peripherals as MMC and SPI. On top of that the watchdog compatible string was wrong, leading to a non-functional watchdog and reset functionality. This series aims to fix that, after the series MMC and SPI work, and make dtbs_check comes back clean. This was tested with mounting a filesystem on /dev/mmcblk0 on a LicheePi Nano, also with accessing the SPI flash through /dev/mtdblock and mtd_debug. Reboot and watchdog now also work. Mainline U-Boot recently gained F1C100 support, and those DT updates are needed there as well to get full MMC and SPI access. The series is structured as follows: - Patches 01/14 and 02/14 fix the watchdog, which allows to properly reboot the system. - Patches 03-06 fix some shortcomings of the existing DT files, to make them DT binding compliant. - Patches 07-09 are Jesse's recent MMC patches, with the comments from the last version addressed [1]. - Patches 10-12 add SPI support, to enable access to the SPI flash on the LicheePi Nano board. - The final two patches (13/14 and 14/14) add the F1C100 platform to the multi_v5_defconfig, since it was not covered by any other defconfig before, and an ARMv5 compliant kernel is not commonly offered by distributions. I saw George's series from two years ago to add USB support[2], that looks good on the first glance, I will comment on that once I did some testing on that. Cheers, Andre Changelog for the MMC patches [1]: - bindings doc: extend commit message - .dtsi: extend commit message, re-order mmc0_pins node, add drive-strength - .dts: extend commit message, add alias, regulator and disable-wp [1] https://lore.kernel.org/linux-arm-kernel/20220130220325.1983918-1-Mr.Bossman075@xxxxxxxxx/ [2] https://lore.kernel.org/linux-usb/20200331170219.267732-1-thirtythreeforty@xxxxxxxxx/ Andre Przywara (10): dt-bindings: watchdog: sunxi: fix F1C100s compatible ARM: dts: suniv: F1C100: fix watchdog compatible dt-bindings: arm: sunxi: document LicheePi Nano name ARM: dts: suniv: F1C100: fix CPU node ARM: dts: suniv: F1C100: fix timer node dt-bindings: spi: sunxi: document F1C100 controllers ARM: dts: suniv: F1C100: add SPI support ARM: dts: suniv: licheepi-nano: add SPI flash ARM: configs: sync multi_v5_defconfig from savedefconfig ARM: configs: multi_v5: Enable Allwinner F1C100 Jesse Taube (4): ARM: dts: suniv: F1C100: add clock and reset macros dt-bindings: mmc: sunxi: add Allwinner F1c100s compatible ARM: dts: suniv: F1C100: add MMC controllers ARM: dts: suniv: licheepi-nano: add microSD card .../devicetree/bindings/arm/sunxi.yaml | 5 + .../bindings/mmc/allwinner,sun4i-a10-mmc.yaml | 3 + .../bindings/spi/allwinner,sun6i-a31-spi.yaml | 1 + .../watchdog/allwinner,sun4i-a10-wdt.yaml | 2 +- .../boot/dts/suniv-f1c100s-licheepi-nano.dts | 31 ++++++ arch/arm/boot/dts/suniv-f1c100s.dtsi | 102 ++++++++++++++++-- arch/arm/configs/multi_v5_defconfig | 25 ++--- 7 files changed, 140 insertions(+), 29 deletions(-) It boots fine and SPI flash and MMC are found. Time keeping also works.
I didn't use the multi_v5_defconfig though.
