Re: [PATCH v2 2/2] arm64: dts: qcom: Add base qrb4210-rb2 board dts

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On Thu, Mar 16, 2023 at 02:31:45AM +0530, Bhupesh Sharma wrote:
> Add DTS for Qualcomm qrb4210-rb2 board which uses SM4250 SoC.
> 
> This adds debug uart, emmc, uSD and tlmm support along with
> regulators found on this board.
> 
> Also defines the 'xo_board' and 'sleep_clk' frequencies for
> this board.
> 
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/Makefile        |   1 +
>  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 224 +++++++++++++++++++++++
>  2 files changed, 225 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 89e23a74bc7f..101ac733422c 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -69,6 +69,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= msm8998-xiaomi-sagit.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-1000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qdu1000-idp.dtb
> +dtb-$(CONFIG_ARCH_QCOM)	+= qrb4210-rb2.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qrb5165-rb5.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qrb5165-rb5-vision-mezzanine.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qru1000-idp.dtb
> diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> new file mode 100644
> index 000000000000..c70c532ba721
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> @@ -0,0 +1,224 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023, Linaro Limited
> + */
> +
> +/dts-v1/;
> +
> +#include "sm4250.dtsi"
> +
> +/ {
> +	model = "Qualcomm Technologies, Inc. QRB4210 RB2";
> +	compatible = "qcom,qrb4210-rb2", "qcom,qrb4210", "qcom,sm4250";
> +
> +	aliases {
> +		serial0 = &uart4;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	vph_pwr: vph-pwr-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vph_pwr";
> +		regulator-min-microvolt = <3700000>;
> +		regulator-max-microvolt = <3700000>;
> +
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +};
> +
> +&qupv3_id_0 {
> +	status = "okay";
> +};
> +
> +&rpm_requests {
> +	regulators {
> +		compatible = "qcom,rpm-pm6125-regulators";
> +
> +		vdd-s1-supply = <&vph_pwr>;
> +		vdd-s2-supply = <&vph_pwr>;
> +		vdd-s3-supply = <&vph_pwr>;
> +		vdd-s4-supply = <&vph_pwr>;
> +		vdd-s5-supply = <&vph_pwr>;
> +		vdd-s6-supply = <&vph_pwr>;
> +		vdd-s7-supply = <&vph_pwr>;
> +		vdd-s8-supply = <&vph_pwr>;
> +		vdd-s9-supply = <&vph_pwr>;
> +		vdd-s10-supply = <&vph_pwr>;
> +
> +		vdd-l1-l7-l17-l18-supply = <&vreg_s6a_1p352>;
> +		vdd-l2-l3-l4-supply = <&vreg_s6a_1p352>;
> +		vdd-l5-l15-l19-l20-l21-l22-supply = <&vph_pwr>;
> +		vdd-l6-l8-supply = <&vreg_s5a_0p848>;
> +		vdd-l9-l11-supply = <&vreg_s7a_2p04>;
> +		vdd-l10-l13-l14-supply = <&vreg_s7a_2p04>;
> +		vdd-l12-l16-supply = <&vreg_s7a_2p04>;
> +		vdd-l23-l24-supply = <&vph_pwr>;
> +
> +		vreg_s5a_0p848: s5 {
> +			regulator-min-microvolt = <920000>;
> +			regulator-max-microvolt = <1128000>;
> +		};
> +
> +		vreg_s6a_1p352: s6 {
> +			regulator-min-microvolt = <304000>;
> +			regulator-max-microvolt = <1456000>;
> +		};
> +
> +		vreg_s7a_2p04: s7 {
> +			regulator-min-microvolt = <1280000>;
> +			regulator-max-microvolt = <2080000>;
> +		};
> +
> +		vreg_l1a_1p0: l1 {
> +			regulator-min-microvolt = <952000>;
> +			regulator-max-microvolt = <1152000>;
> +		};
> +
> +		vreg_l4a_0p9: l4 {
> +			regulator-min-microvolt = <488000>;
> +			regulator-max-microvolt = <1000000>;
> +		};
> +
> +		vreg_l5a_2p96: l5 {
> +			regulator-min-microvolt = <1648000>;
> +			regulator-max-microvolt = <3056000>;
> +		};
> +
> +		vreg_l6a_0p6: l6 {
> +			regulator-min-microvolt = <576000>;
> +			regulator-max-microvolt = <656000>;
> +		};
> +
> +		vreg_l7a_1p256: l7 {
> +			regulator-min-microvolt = <1200000>;
> +			regulator-max-microvolt = <1304000>;
> +		};
> +
> +		vreg_l8a_0p664: l8 {
> +			regulator-min-microvolt = <400000>;
> +			regulator-max-microvolt = <728000>;
> +		};
> +
> +		vreg_l9a_1p8: l9 {
> +			regulator-min-microvolt = <1800000>;
> +			regulator-max-microvolt = <2000000>;
> +		};
> +
> +		vreg_l10a_1p8: l10 {
> +			regulator-min-microvolt = <1704000>;
> +			regulator-max-microvolt = <1904000>;
> +		};
> +
> +		vreg_l11a_1p8: l11 {
> +			regulator-min-microvolt = <1704000>;
> +			regulator-max-microvolt = <1952000>;
> +		};
> +
> +		vreg_l12a_1p8: l12 {
> +			regulator-min-microvolt = <1624000>;
> +			regulator-max-microvolt = <1984000>;
> +		};
> +
> +		vreg_l13a_1p8: l13 {
> +			regulator-min-microvolt = <1504000>;
> +			regulator-max-microvolt = <1952000>;
> +		};
> +
> +		vreg_l14a_1p8: l14 {
> +			regulator-min-microvolt = <1704000>;
> +			regulator-max-microvolt = <1904000>;
> +		};
> +
> +		vreg_l15a_3p128: l15 {
> +			regulator-min-microvolt = <2920000>;
> +			regulator-max-microvolt = <3232000>;
> +		};
> +
> +		vreg_l16a_1p3: l16 {
> +			regulator-min-microvolt = <1704000>;
> +			regulator-max-microvolt = <1904000>;
> +		};
> +
> +		vreg_l17a_1p3: l17 {
> +			regulator-min-microvolt = <1152000>;
> +			regulator-max-microvolt = <1384000>;
> +		};
> +
> +		vreg_l18a_1p232: l18 {
> +			regulator-min-microvolt = <1104000>;
> +			regulator-max-microvolt = <1312000>;
> +		};
> +
> +		vreg_l19a_1p8: l19 {
> +			regulator-min-microvolt = <1624000>;
> +			regulator-max-microvolt = <3304000>;
> +		};
> +
> +		vreg_l20a_1p8: l20 {
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2960000>;
> +		};
> +
> +		vreg_l21a_2p704: l21 {
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2960000>;
> +		};
> +
> +		vreg_l22a_2p96: l22 {
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2960000>;
> +		};
> +
> +		vreg_l23a_3p3: l23 {
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2960000>;
> +		};
> +
> +		vreg_l24a_2p96: l24 {
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2960000>;
> +		};
> +	};
> +};
> +
> +&sdhc_1 {
> +	status = "okay";

Please keep status as the last property.

> +
> +	vmmc-supply = <&vreg_l24a_2p96>;

Is there any reason why this platform doesn't require the vmmc supply to
be driven to HPM? This has traditionally been coming back biting us
through some stability issues later.

Regards,
Bjorn

> +	vqmmc-supply = <&vreg_l11a_1p8>;
> +	no-sdio;
> +	non-removable;
> +};
> +
> +&sdhc_2 {
> +	status = "okay";
> +
> +	cd-gpios = <&tlmm 88 GPIO_ACTIVE_HIGH>; /* card detect gpio */
> +	vmmc-supply = <&vreg_l22a_2p96>;
> +	vqmmc-supply = <&vreg_l5a_2p96>;
> +	no-sdio;
> +};
> +
> +&sleep_clk {
> +	clock-frequency = <32000>;
> +};
> +
> +&tlmm {
> +	gpio-reserved-ranges = <37 5>, <43 2>, <47 1>,
> +			       <49 1>, <52 1>, <54 1>,
> +			       <56 3>, <61 2>, <64 1>,
> +			       <68 1>, <72 8>, <96 1>;
> +};
> +
> +&uart4 {
> +	status = "okay";
> +};
> +
> +&xo_board {
> +	clock-frequency = <19200000>;
> +};
> -- 
> 2.38.1
> 



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