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