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From:   Amit Pundir <amit.pundir@linaro.org>
To:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        John Stultz <john.stultz@linaro.org>,
        Sumit Semwal <sumit.semwal@linaro.org>
Cc:     linux-arm-msm <linux-arm-msm@vger.kernel.org>,
        dt <devicetree@vger.kernel.org>,
        lkml <linux-kernel@vger.kernel.org>
Subject: [PATCH v5] arm64: dts: qcom: Add support for Xiaomi Poco F1 (Beryllium)
Date:   Fri, 21 Aug 2020 22:42:41 +0530
Message-Id: <1598029961-2474-1-git-send-email-amit.pundir@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Add initial dts support for Xiaomi Poco F1 (Beryllium).

This initial support is based on upstream Dragonboard 845c
(sdm845) device. With this dts, Beryllium boots AOSP up to
ADB shell over USB-C.

Supported functionality includes UFS, USB-C (peripheral),
microSD card and Vol+/Vol-/power keys. Bluetooth should work
too but couldn't be verified from adb command line, it is
verified when enabled from UI with few WIP display patches.

Just like initial db845c support, initializing the SMMU is
clearing the mapping used for the splash screen framebuffer,
which causes the device to hang during boot and recovery
needs a hard power reset. This can be worked around using:

    fastboot oem select-display-panel none

To switch ON the display back run:

    fastboot oem select-display-panel

But this only works on Beryllium devices running bootloader
version BOOT.XF.2.0-00369-SDM845LZB-1 that shipped with
Android-9 based release. Newer bootloader version do not
support switching OFF the display panel at all. So we need
a few additional smmu patches (under review) from here:
https://github.com/pundiramit/linux/commits/beryllium-mainline

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
---
v5: Bumped &tz_mem size from 0x2d00000 to 0x4900000 (to include
    downstream &removed_region), all the way up to &qseecom_mem.
v4: Added more downstream reserved memory regions. It probably
    need more work, but for now I see adsp/cdsp/wlan remoteprocs
    powering up properly. Removed the regulator nodes not
    required for the device, as suggested by Bjorn. Also added
    couple of clocks to protected clocks, which is needed for
    display to work.
v3: Added a reserved-memory region from downstream kernel to fix
    a boot regression with recent dma-pool changes in v5.8-rc6.
v2: Updated machine compatible string for seemingly inevitable
    future quirks.

 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 arch/arm64/boot/dts/qcom/sdm845-beryllium.dts | 382 ++++++++++++++++++++++++++
 2 files changed, 383 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/sdm845-beryllium.dts

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index d8f1466e6758..477b72dca0fc 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -29,6 +29,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-cheza-r1.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-cheza-r2.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-cheza-r3.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-db845c.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-beryllium.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sdm845-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sdm850-lenovo-yoga-c630.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8150-mtp.dtb
diff --git a/arch/arm64/boot/dts/qcom/sdm845-beryllium.dts b/arch/arm64/boot/dts/qcom/sdm845-beryllium.dts
new file mode 100644
index 000000000000..5c03994bcbdd
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sdm845-beryllium.dts
@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include "sdm845.dtsi"
+#include "pm8998.dtsi"
+#include "pmi8998.dtsi"
+
+/ {
+	model = "Xiaomi Technologies Inc. Beryllium";
+	compatible = "xiaomi,beryllium", "qcom,sdm845";
+
+	/* required for bootloader to select correct board */
+	qcom,board-id = <69 0>;
+	qcom,msm-id = <321 0x20001>;
+
+	aliases {
+		hsuart0 = &uart6;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&vol_up_pin_a>;
+
+		vol-up {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&pm8998_gpio 6 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	vreg_s4a_1p8: vreg-s4a-1p8 {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_s4a_1p8";
+
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+	};
+};
+
+&adsp_pas {
+	status = "okay";
+	firmware-name = "qcom/sdm845/adsp.mdt";
+};
+
+&apps_rsc {
+	pm8998-rpmh-regulators {
+		compatible = "qcom,pm8998-rpmh-regulators";
+		qcom,pmic-id = "a";
+
+		vreg_l1a_0p875: ldo1 {
+			regulator-min-microvolt = <880000>;
+			regulator-max-microvolt = <880000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l5a_0p8: ldo5 {
+			regulator-min-microvolt = <800000>;
+			regulator-max-microvolt = <800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l7a_1p8: ldo7 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l12a_1p8: ldo12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l13a_2p95: ldo13 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2960000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l17a_1p3: ldo17 {
+			regulator-min-microvolt = <1304000>;
+			regulator-max-microvolt = <1304000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l20a_2p95: ldo20 {
+			regulator-min-microvolt = <2960000>;
+			regulator-max-microvolt = <2968000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l21a_2p95: ldo21 {
+			regulator-min-microvolt = <2960000>;
+			regulator-max-microvolt = <2968000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l24a_3p075: ldo24 {
+			regulator-min-microvolt = <3088000>;
+			regulator-max-microvolt = <3088000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l25a_3p3: ldo25 {
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3312000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l26a_1p2: ldo26 {
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+	};
+};
+
+&cdsp_pas {
+	status = "okay";
+	firmware-name = "qcom/sdm845/cdsp.mdt";
+};
+
+&gcc {
+	protected-clocks = <GCC_QSPI_CORE_CLK>,
+			   <GCC_QSPI_CORE_CLK_SRC>,
+			   <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
+			   <GCC_LPASS_Q6_AXI_CLK>,
+			   <GCC_LPASS_SWAY_CLK>;
+};
+
+&gpu {
+	zap-shader {
+		memory-region = <&gpu_mem>;
+		firmware-name = "qcom/sdm845/a630_zap.mbn";
+	};
+};
+
+/* Reserved memory changes from downstream */
+/delete-node/ &tz_mem;
+/delete-node/ &adsp_mem;
+/delete-node/ &wlan_msa_mem;
+/delete-node/ &mpss_region;
+/delete-node/ &venus_mem;
+/delete-node/ &cdsp_mem;
+/delete-node/ &mba_region;
+/delete-node/ &slpi_mem;
+/delete-node/ &spss_mem;
+/delete-node/ &rmtfs_mem;
+/ {
+	reserved-memory {
+		tz_mem: memory@86200000 {
+			reg = <0 0x86200000 0 0x4900000>;
+			no-map;
+		};
+
+		adsp_mem: memory@8c500000 {
+			reg = <0 0x8c500000 0 0x1e00000>;
+			no-map;
+		};
+
+		wlan_msa_mem: memory@8e300000 {
+			reg = <0 0x8e300000 0 0x100000>;
+			no-map;
+		};
+
+		mpss_region: memory@8e400000 {
+			reg = <0 0x8e400000 0 0x7800000>;
+			no-map;
+		};
+
+		venus_mem: memory@95c00000 {
+			reg = <0 0x95c00000 0 0x500000>;
+			no-map;
+		};
+
+		cdsp_mem: memory@96100000 {
+			reg = <0 0x96100000 0 0x800000>;
+			no-map;
+		};
+
+		mba_region: memory@96900000 {
+			reg = <0 0x96900000 0 0x200000>;
+			no-map;
+		};
+
+		slpi_mem: memory@96b00000 {
+			reg = <0 0x96b00000 0 0x1400000>;
+			no-map;
+		};
+
+		spss_mem: memory@97f00000 {
+			reg = <0 0x97f00000 0 0x100000>;
+			no-map;
+		};
+
+		rmtfs_mem: memory@f6301000 {
+			compatible = "qcom,rmtfs-mem";
+			reg = <0 0xf6301000 0 0x200000>;
+			no-map;
+
+			qcom,client-id = <1>;
+			qcom,vmid = <15>;
+		};
+	};
+};
+
+&mss_pil {
+	status = "okay";
+	firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mdt";
+};
+
+&pm8998_gpio {
+	vol_up_pin_a: vol-up-active {
+		pins = "gpio6";
+		function = "normal";
+		input-enable;
+		bias-pull-up;
+		qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+	};
+};
+
+&pm8998_pon {
+	resin {
+		compatible = "qcom,pm8941-resin";
+		interrupts = <0x0 0x8 1 IRQ_TYPE_EDGE_BOTH>;
+		debounce = <15625>;
+		bias-pull-up;
+		linux,code = <KEY_VOLUMEDOWN>;
+	};
+};
+
+&qupv3_id_0 {
+	status = "okay";
+};
+
+&sdhc_2 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdc2_default_state &sdc2_card_det_n>;
+
+	vmmc-supply = <&vreg_l21a_2p95>;
+	vqmmc-supply = <&vreg_l13a_2p95>;
+
+	bus-width = <4>;
+	cd-gpios = <&tlmm 126 GPIO_ACTIVE_HIGH>;
+};
+
+&tlmm {
+	gpio-reserved-ranges = <0 4>, <81 4>;
+
+	sdc2_default_state: sdc2-default {
+		clk {
+			pins = "sdc2_clk";
+			bias-disable;
+
+			/*
+			 * It seems that mmc_test reports errors if drive
+			 * strength is not 16 on clk, cmd, and data pins.
+			 */
+			drive-strength = <16>;
+		};
+
+		cmd {
+			pins = "sdc2_cmd";
+			bias-pull-up;
+			drive-strength = <10>;
+		};
+
+		data {
+			pins = "sdc2_data";
+			bias-pull-up;
+			drive-strength = <10>;
+		};
+	};
+
+	sdc2_card_det_n: sd-card-det-n {
+		pins = "gpio126";
+		function = "gpio";
+		bias-pull-up;
+	};
+};
+
+&uart6 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn3990-bt";
+
+		vddio-supply = <&vreg_s4a_1p8>;
+		vddxo-supply = <&vreg_l7a_1p8>;
+		vddrf-supply = <&vreg_l17a_1p3>;
+		vddch0-supply = <&vreg_l25a_3p3>;
+		max-speed = <3200000>;
+	};
+};
+
+&usb_1 {
+	status = "okay";
+};
+
+&usb_1_dwc3 {
+	dr_mode = "peripheral";
+};
+
+&usb_1_hsphy {
+	status = "okay";
+
+	vdd-supply = <&vreg_l1a_0p875>;
+	vdda-pll-supply = <&vreg_l12a_1p8>;
+	vdda-phy-dpdm-supply = <&vreg_l24a_3p075>;
+
+	qcom,imp-res-offset-value = <8>;
+	qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_21_6_MA>;
+	qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_5_PERCENT>;
+	qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>;
+};
+
+&usb_1_qmpphy {
+	status = "okay";
+
+	vdda-phy-supply = <&vreg_l26a_1p2>;
+	vdda-pll-supply = <&vreg_l1a_0p875>;
+};
+
+&ufs_mem_hc {
+	status = "okay";
+
+	reset-gpios = <&tlmm 150 GPIO_ACTIVE_LOW>;
+
+	vcc-supply = <&vreg_l20a_2p95>;
+	vcc-max-microamp = <800000>;
+};
+
+&ufs_mem_phy {
+	status = "okay";
+
+	vdda-phy-supply = <&vreg_l1a_0p875>;
+	vdda-pll-supply = <&vreg_l26a_1p2>;
+};
+
+&wifi {
+	status = "okay";
+
+	vdd-0.8-cx-mx-supply = <&vreg_l5a_0p8>;
+	vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
+	vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
+	vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
+};
+
+/* PINCTRL - additions to nodes defined in sdm845.dtsi */
+
+&qup_uart6_default {
+	pinmux {
+		pins = "gpio45", "gpio46", "gpio47", "gpio48";
+		function = "qup6";
+	};
+
+	cts {
+		pins = "gpio45";
+		bias-disable;
+	};
+
+	rts-tx {
+		pins = "gpio46", "gpio47";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rx {
+		pins = "gpio48";
+		bias-pull-up;
+	};
+};
-- 
2.7.4