2f8690ef64
The 72116B0 has improved SDIO controllers that allow the max clock rate to be increased from a max of 100MHz to a max of 150MHz. Optional "sdio_freq" clock is used to drive the bus clock if present optional property "clock-frequency" specifies a base clock frequency in Hz that overrides the base clock frequency in the CAPS registers. Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220520183108.47358-2-kdasu.kdev@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
119 lines
2.6 KiB
YAML
119 lines
2.6 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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$id: http://devicetree.org/schemas/mmc/brcm,sdhci-brcmstb.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom BRCMSTB/BMIPS SDHCI Controller binding
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maintainers:
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- Al Cooper <alcooperx@gmail.com>
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- Florian Fainelli <f.fainelli@gmail.com>
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- brcm,bcm7216-sdhci
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- const: brcm,bcm7445-sdhci
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- const: brcm,sdhci-brcmstb
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- items:
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- enum:
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- brcm,bcm7445-sdhci
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- const: brcm,sdhci-brcmstb
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- items:
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- enum:
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- brcm,bcm7425-sdhci
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- const: brcm,sdhci-brcmstb
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reg:
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maxItems: 2
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reg-names:
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items:
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- const: host
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- const: cfg
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interrupts:
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maxItems: 1
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clocks:
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minItems: 1
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items:
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- description: handle to core clock for the sdhci controller
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- description: handle to improved 150Mhz clock for sdhci controller (Optional clock)
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clock-names:
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minItems: 1
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items:
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- const: sw_sdio
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- const: sdio_freq # Optional clock
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clock-frequency:
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description:
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Maximum operating frequency of sdio_freq sdhci controller clock
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 100000000
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maximum: 150000000
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sdhci,auto-cmd12:
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type: boolean
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description: Specifies that controller should use auto CMD12
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allOf:
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- $ref: mmc-controller.yaml#
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- if:
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properties:
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clock-names:
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contains:
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const: sdio_freq
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then:
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required:
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- clock-frequency
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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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- clock-names
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unevaluatedProperties: false
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examples:
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- |
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mmc@84b0000 {
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compatible = "brcm,bcm7216-sdhci",
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"brcm,bcm7445-sdhci",
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"brcm,sdhci-brcmstb";
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reg = <0x84b0000 0x260>, <0x84b0300 0x200>;
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reg-names = "host", "cfg";
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sd-uhs-sdr50;
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sd-uhs-ddr50;
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sd-uhs-sdr104;
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sdhci,auto-cmd12;
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interrupts = <0x0 0x26 0x4>;
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clocks = <&scmi_clk 245>;
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clock-names = "sw_sdio";
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};
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mmc@84b1000 {
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compatible = "brcm,bcm7216-sdhci",
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"brcm,bcm7445-sdhci",
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"brcm,sdhci-brcmstb";
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reg = <0x84b1000 0x260>, <0x84b1300 0x200>;
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reg-names = "host", "cfg";
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mmc-ddr-1_8v;
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mmc-hs200-1_8v;
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mmc-hs400-1_8v;
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mmc-hs400-enhanced-strobe;
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supports-cqe;
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non-removable;
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bus-width = <0x8>;
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interrupts = <0x0 0x27 0x4>;
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clocks = <&scmi_clk 245>;
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clock-names = "sw_sdio";
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};
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