The A64 SPI controller is compatible to the H3/H5 controller, i.e. same registers and same queue depth.
The Pine64 exposes both controllers on the PI-2 and Euler connectors. Tested/verified with logic analyser and spidev_test using MOSI/MISO loopback. Note: spi0 on the A64 may conflict with the eMMC controller, as the MISO pin is also used for the HS400 eMMC data strobe. This is only a concern if the board uses eMMC (does not apply to the Pine64) *and* is using HS400 mode. The same pin conflict exists for the H5. Stefan Brüns (2): arm64: allwinner: a64: add SPI nodes arm64: allwinner: pine64: Enable spi0/spi1 .../arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 8 +++++ arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 40 ++++++++++++++++++++++ 2 files changed, 48 insertions(+) -- 2.14.1
