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Date: Wed, 15 Mar 2023 15:36:04 -0700
From: Bjorn Andersson <andersson@...nel.org>
To: Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
agross@...nel.org, konrad.dybcio@...aro.org,
linux-kernel@...r.kernel.org, bhupesh.linux@...il.com,
robh+dt@...nel.org, krzysztof.kozlowski@...aro.org
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: Add base qrb4210-rb2 board dts
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@...aro.org>
> ---
> 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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