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Diffstat (limited to 'Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml')
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diff --git a/Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml b/Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml new file mode 100644 index 000000000000..c142421bc723 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/loongson,ls2k0500-mmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: The SD/SDIO/eMMC host controller for Loongson-2K family SoCs + +description: + The MMC host controller on the Loongson-2K0500/2K1000 (using an externally + shared apbdma controller) provides the SD and SDIO device interfaces. + The two MMC host controllers on the Loongson-2K2000 are similar, + except that they use internal exclusive DMA. one controller provides + the eMMC interface and the other provides the SD/SDIO interface. + +maintainers: + - Binbin Zhou <zhoubinbin@loongson.cn> + +allOf: + - $ref: mmc-controller.yaml# + +properties: + compatible: + enum: + - loongson,ls2k0500-mmc + - loongson,ls2k1000-mmc + - loongson,ls2k2000-mmc + + reg: + minItems: 1 + items: + - description: Loongson-2K MMC controller registers. + - description: APB DMA config register for Loongson-2K MMC controller. + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + dmas: + maxItems: 1 + + dma-names: + const: rx-tx + +required: + - compatible + - reg + - interrupts + - clocks + +unevaluatedProperties: false + +if: + properties: + compatible: + contains: + enum: + - loongson,ls2k0500-mmc + - loongson,ls2k1000-mmc + +then: + properties: + reg: + minItems: 2 + + required: + - dmas + - dma-names + +else: + properties: + reg: + maxItems: 1 + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/clock/loongson,ls2k-clk.h> + + mmc@1fe2c000 { + compatible = "loongson,ls2k1000-mmc"; + reg = <0x1fe2c000 0x68>, + <0x1fe00438 0x8>; + interrupt-parent = <&liointc0>; + interrupts = <31 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk LOONGSON2_APB_CLK>; + dmas = <&apbdma1 0>; + dma-names = "rx-tx"; + bus-width = <4>; + cd-gpios = <&gpio0 22 GPIO_ACTIVE_LOW>; + }; + + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/clock/loongson,ls2k-clk.h> + + mmc@79990000 { + compatible = "loongson,ls2k2000-mmc"; + reg = <0x79990000 0x1000>; + interrupt-parent = <&pic>; + interrupts = <51 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk LOONGSON2_EMMC_CLK>; + bus-width = <8>; + non-removable; + cap-mmc-highspeed; + mmc-hs200-1_8v; + no-sd; + no-sdio; + }; |