This patch adds support for SPI on the Kendryte K210. This includes the MMC slot
and SPI flash on the Sipeed Maix Bit.
This patch series was previously part of
https://patchwork.ozlabs.org/project/uboot/list/?series=161576
This patch series depends on
https://patchwork.ozlabs.org/project/uboot/list/?series=162646
Known bugs:
- The MMC cannot be accessed with the dw_spi driver
Sean Anderson (8):
doc: Fix typo in FIT documentation
spi: dw: Add device tree properties for fields in CTRL0
spi: dw: Rename "cs-gpio" to "cs-gpios"
spi: dw: Use generic function to read reg address
spi: dw: Speed up transfer loops
spi: dw: Add mem_ops
riscv: Add device tree bindings for SPI
riscv: Add support for SPI on Kendryte K210
arch/arc/dts/axs10x_mb.dtsi | 3 +-
arch/arc/dts/hsdk.dts | 3 +-
arch/riscv/dts/k210-maix-bit.dts | 90 ++++++++
arch/riscv/dts/k210.dtsi | 12 +
board/sipeed/maix/Kconfig | 10 +
configs/sipeed_maix_bitm_defconfig | 8 +
doc/board/sipeed/maix.rst | 94 +++++---
.../spi/snps,dw-apb-ssi.txt | 43 ++++
doc/uImage.FIT/source_file_format.txt | 2 +-
drivers/spi/designware_spi.c | 211 ++++++++++++++----
10 files changed, 395 insertions(+), 81 deletions(-)
create mode 100644 doc/device-tree-bindings/spi/snps,dw-apb-ssi.txt