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It is considered good practice to disable on-SoC devices providing
external I/O in the SoC-specific .dtsi, and enable them explicitly in
the board-specific DTS files when actually wired-up and used.
Hence:
- Set the status of I/O devices in k210.dtsi to "disabled",
- Override the status of used I/O devices in board-specific DTS files
to "okay",
- Drop unneeded status overrides in board DTS-specific files for the
always-enabled pin controller.
On e.g. MAiXBiT, this gets rid of an error message when probing the
unused slave-only spi2 controller:
dw_spi_mmio 50240000.spi: error -22: problem registering spi host
dw_spi_mmio 50240000.spi: probe with driver dw_spi_mmio failed with error -22
which is seen since commit 98d75b9ef282f6b9 ("spi: dw: Drop default
number of CS setting").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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The SoC-specific k210.dtsi declares aliases for all four serial ports.
However, none of the board-specific DTS files configure pin control for
any but the first serial port, so the last three ports are not usable.
Move the aliases node from the SoC-specific k210.dtsi to the
board-specific DTS files, as these are really board-specific, and retain
the sole port that is usable.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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This series should rid us of dtbs_check errors for the RISC-V Canaan
k210 based boards. To make keeping it that way a little easier, I
changed the Canaan devicetree Makefile so that it would build all of the
devicetrees in the directory if SOC_CANAAN.
Link: https://lore.kernel.org/all/mhng-85044754-c361-40bc-a6a2-7082f35930bb@palmer-ri-x1c9/
* remotes/palmer/riscv-canaan_dt_schema:
riscv: dts: canaan: build all devicetress if SOC_CANAAN
riscv: dts: canaan: add specific compatible for kd233's LCD
riscv: dts: canaan: fix bus {ranges,reg} warnings
riscv: dts: canaan: remove spi-max-frequency from controllers
riscv: dts: canaan: use custom compatible for k210 i2s
riscv: dts: canaan: fix kd233 display spi frequency
riscv: dts: canaan: fix mmc node names
riscv: dts: canaan: fix the k210's timer nodes
riscv: dts: canaan: fix the k210's memory node
dt-bindings: memory-controllers: add canaan k210 sram controller
dt-bindings: display: ili9341: document canaan kd233's lcd
dt-bindings: display: convert ilitek,ili9341.txt to dt-schema
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The newly-converted-to-dt-schema binding expects the mmc node name to be
'^mmc(@.*)?$' so align the devicetree with the schema.
Tested-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220705215213.1802496-8-mail@conchuod.ie
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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The node names should be generic and DT schema expects certain pattern
(e.g. with key/button/switch).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220624170811.66395-1-krzysztof.kozlowski@linaro.org
Link: https://lore.kernel.org/all/20220616005224.18391-1-krzysztof.kozlowski@linaro.org/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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According to the K210 Standalone SDK Programming guide:
https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalone_programming_guide_20190311144158_en.pdf
Section 15.4.3.3:
SPI0 and SPI1 supports: standard, dual, quad and octal transfers.
SPI3 supports: standard, dual and quad transfers (octal is not supported).
In order to support quad transfers (Quad SPI), SPI3 must have four IO wires
connected to the SPI flash.
Update the device tree to specify the correct bus width.
Tested on maix bit, maix dock and maixduino, which all have the same
SPI flash (gd25lq128d) connected to SPI3. maix go is untested, but it
would not make sense for this k210 board to be designed differently.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Fixes: 8f5b0e79f3e5 ("riscv: Add SiPeed MAIXDUINO board device tree")
Fixes: 8194f08bda18 ("riscv: Add SiPeed MAIX GO board device tree")
Fixes: a40f920964c4 ("riscv: Add SiPeed MAIX DOCK board device tree")
Fixes: 97c279bcf813 ("riscv: Add SiPeed MAIX BiT board device tree")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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"make dtbs_check":
arch/riscv/boot/dts/canaan/sipeed_maix_bit.dt.yaml: spi-flash@0: $nodename:0: 'spi-flash@0' does not match '^flash(@.*)?$'
From schema: Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
Fix this by renaming all SPI FLASH nodes to "flash".
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Add the device tree sipeed_maix_go.dts for the SiPeed MAIX GO board.
This device tree enables buttons, LEDs, gpio, i2c and spi/mmc SD card
devices.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
[Palmer: Remove undocumented microphone entry, along with the use.]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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