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| author | Cristian Ciocaltea <cristian.ciocaltea@gmail.com> | 2020-12-29 22:17:26 +0100 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2020-12-31 08:35:33 +0100 |
| commit | 8e23902d12433bf19be7e261eb02d64c27384901 (patch) | |
| tree | d6517dc50069c3e897706a4add9d07cb38cf93f1 /arch/arm/boot/dts | |
| parent | arm: dts: owl-s500: Add SIRQ controller (diff) | |
| download | linux-8e23902d12433bf19be7e261eb02d64c27384901.tar.xz linux-8e23902d12433bf19be7e261eb02d64c27384901.zip | |
arm: dts: owl-s500-roseapplepi: Add uSD support
Add uSD support for RoseapplePi SBC using a fixed regulator as a
temporary solution until PMIC support becomes available.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/owl-s500-roseapplepi.dts | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts index 800edf5d2d12..fe9ae3619422 100644 --- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts +++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts @@ -14,6 +14,7 @@ model = "Roseapple Pi"; aliases { + mmc0 = &mmc0; serial2 = &uart2; }; @@ -25,6 +26,55 @@ device_type = "memory"; reg = <0x0 0x80000000>; /* 2GB */ }; + + /* Fixed regulator used in the absence of PMIC */ + sd_vcc: sd-vcc { + compatible = "regulator-fixed"; + regulator-name = "fixed-3.1V"; + regulator-min-microvolt = <3100000>; + regulator-max-microvolt = <3100000>; + regulator-always-on; + }; +}; + +&pinctrl { + mmc0_pins: mmc0-pins { + pinmux { + groups = "sd0_d0_mfp", "sd0_d1_mfp", "sd0_d2_d3_mfp", + "sd0_cmd_mfp", "sd0_clk_mfp"; + function = "sd0"; + }; + + drv-pinconf { + groups = "sd0_d0_d3_drv", "sd0_cmd_drv", "sd0_clk_drv"; + drive-strength = <8>; + }; + + bias0-pinconf { + pins = "sd0_d0", "sd0_d1", "sd0_d2", + "sd0_d3", "sd0_cmd"; + bias-pull-up; + }; + + bias1-pinconf { + pins = "sd0_clk"; + bias-pull-down; + }; + }; +}; + +/* uSD */ +&mmc0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&mmc0_pins>; + no-sdio; + no-mmc; + no-1-8-v; + cd-gpios = <&pinctrl 117 GPIO_ACTIVE_LOW>; + bus-width = <4>; + vmmc-supply = <&sd_vcc>; + vqmmc-supply = <&sd_vcc>; }; &twd_timer { |