41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
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* Hisilicon Hi3798CV200 specific extensions to the Synopsys Designware Mobile
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Storage Host Controller
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Read synopsys-dw-mshc.txt for more details
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The Synopsys designware mobile storage host controller is used to interface
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a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
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differences between the core Synopsys dw mshc controller properties described
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by synopsys-dw-mshc.txt and the properties used by the Hisilicon Hi3798CV200
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specific extensions to the Synopsys Designware Mobile Storage Host Controller.
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Required Properties:
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- compatible: Should contain "hisilicon,hi3798cv200-dw-mshc".
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- clocks: A list of phandle + clock-specifier pairs for the clocks listed
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in clock-names.
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- clock-names: Should contain the following:
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"ciu" - The ciu clock described in synopsys-dw-mshc.txt.
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"biu" - The biu clock described in synopsys-dw-mshc.txt.
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"ciu-sample" - Hi3798CV200 extended phase clock for ciu sampling.
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"ciu-drive" - Hi3798CV200 extended phase clock for ciu driving.
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Example:
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emmc: mmc@9830000 {
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compatible = "hisilicon,hi3798cv200-dw-mshc";
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reg = <0x9830000 0x10000>;
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interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&crg HISTB_MMC_CIU_CLK>,
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<&crg HISTB_MMC_BIU_CLK>,
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<&crg HISTB_MMC_SAMPLE_CLK>,
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<&crg HISTB_MMC_DRV_CLK>;
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clock-names = "ciu", "biu", "ciu-sample", "ciu-drive";
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fifo-depth = <256>;
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clock-frequency = <200000000>;
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cap-mmc-highspeed;
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mmc-ddr-1_8v;
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mmc-hs200-1_8v;
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non-removable;
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bus-width = <8>;
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};
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