~sircmpwn/linux

linux/arch/arm/boot/dts/rk3288-veyron.dtsi -rw-r--r-- 13.4 KiB
a99d8080 — Linus Torvalds Linux 5.4-rc6 11 months ago
                                                                                
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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Google Veyron (and derivatives) board device tree source
 *
 * Copyright 2015 Google, Inc
 */

#include <dt-bindings/clock/rockchip,rk808.h>
#include <dt-bindings/input/input.h>
#include "rk3288.dtsi"

/ {
	chosen {
		stdout-path = "serial2:115200n8";
	};

	/*
	 * The default coreboot on veyron devices ignores memory@0 nodes
	 * and would instead create another memory node.
	 */
	memory {
		device_type = "memory";
		reg = <0x0 0x0 0x0 0x80000000>;
	};

	bt_activity: bt-activity {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&bt_host_wake>;

		/*
		 * HACK: until we have an LPM driver, we'll use an
		 * ugly GPIO key to allow Bluetooth to wake from S3.
		 * This is expected to only be used by BT modules that
		 * use UART for comms.  For BT modules that talk over
		 * SDIO we should use a wakeup mechanism related to SDIO.
		 *
		 * Use KEY_RESERVED here since that will work as a wakeup but
		 * doesn't get reported to higher levels (so doesn't confuse
		 * Chrome).
		 */
		bt-wake {
			label = "BT Wakeup";
			gpios = <&gpio4 RK_PD7 GPIO_ACTIVE_HIGH>;
			linux,code = <KEY_RESERVED>;
			wakeup-source;
		};

	};

	power_button: power-button {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&pwr_key_l>;

		power {
			label = "Power";
			gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_POWER>;
			debounce-interval = <100>;
			wakeup-source;
		};
	};

	gpio-restart {
		compatible = "gpio-restart";
		gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&ap_warm_reset_h>;
		priority = <200>;
	};

	emmc_pwrseq: emmc-pwrseq {
		compatible = "mmc-pwrseq-emmc";
		pinctrl-0 = <&emmc_reset>;
		pinctrl-names = "default";
		reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
	};

	sdio_pwrseq: sdio-pwrseq {
		compatible = "mmc-pwrseq-simple";
		clocks = <&rk808 RK808_CLKOUT1>;
		clock-names = "ext_clock";
		pinctrl-names = "default";
		pinctrl-0 = <&bt_enable_l>, <&wifi_enable_h>;

		/*
		 * Depending on the actual card populated GPIO4 D4 and D5
		 * correspond to one of these signals on the module:
		 *
		 * D4:
		 * - SDIO_RESET_L_WL_REG_ON
		 * - PDN (power down when low)
		 *
		 * D5:
		 * - BT_I2S_WS_BT_RFDISABLE_L
		 * - No connect
		 */
		reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>,
			      <&gpio4 RK_PD5 GPIO_ACTIVE_LOW>;
	};

	vcc_5v: vcc-5v {
		compatible = "regulator-fixed";
		regulator-name = "vcc_5v";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
	};

	vcc33_sys: vcc33-sys {
		compatible = "regulator-fixed";
		regulator-name = "vcc33_sys";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	vcc50_hdmi: vcc50-hdmi {
		compatible = "regulator-fixed";
		regulator-name = "vcc50_hdmi";
		regulator-always-on;
		regulator-boot-on;
		vin-supply = <&vcc_5v>;
	};

	vdd_logic: vdd-logic {
		compatible = "pwm-regulator";
		regulator-name = "vdd_logic";

		pwms = <&pwm1 0 1994 0>;
		pwm-supply = <&vcc33_sys>;

		pwm-dutycycle-range = <0x7b 0>;
		pwm-dutycycle-unit = <0x94>;

		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <950000>;
		regulator-max-microvolt = <1350000>;
		regulator-ramp-delay = <4000>;
	};
};

&cpu0 {
	cpu0-supply = <&vdd_cpu>;
};

&cpu_crit {
	temperature = <100000>;
};

/* rk3288-c used in Veyron Chrome-devices has slightly changed OPPs */
&cpu_opp_table {
	/delete-node/ opp-312000000;

	opp-1512000000 {
		opp-microvolt = <1250000>;
	};
	opp-1608000000 {
		opp-microvolt = <1300000>;
	};
	opp-1704000000 {
		opp-hz = /bits/ 64 <1704000000>;
		opp-microvolt = <1350000>;
	};
	opp-1800000000 {
		opp-hz = /bits/ 64 <1800000000>;
		opp-microvolt = <1400000>;
	};
};

&emmc {
	status = "okay";

	bus-width = <8>;
	cap-mmc-highspeed;
	rockchip,default-sample-phase = <158>;
	disable-wp;
	mmc-hs200-1_8v;
	mmc-pwrseq = <&emmc_pwrseq>;
	non-removable;
	pinctrl-names = "default";
	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
};

&gpu {
	mali-supply = <&vdd_gpu>;
	status = "okay";
};

&gpu_alert0 {
	temperature = <72500>;
};

&gpu_crit {
	temperature = <100000>;
};

&hdmi {
	pinctrl-names = "default", "unwedge";
	pinctrl-0 = <&hdmi_ddc>;
	pinctrl-1 = <&hdmi_ddc_unwedge>;
	status = "okay";
};

&i2c0 {
	status = "okay";

	clock-frequency = <400000>;
	i2c-scl-falling-time-ns = <50>;		/* 2.5ns measured */
	i2c-scl-rising-time-ns = <100>;		/* 45ns measured */

	rk808: pmic@1b {
		compatible = "rockchip,rk808";
		reg = <0x1b>;
		clock-output-names = "xin32k", "wifibt_32kin";
		interrupt-parent = <&gpio0>;
		interrupts = <RK_PA4 IRQ_TYPE_LEVEL_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&pmic_int_l>;
		rockchip,system-power-controller;
		wakeup-source;
		#clock-cells = <1>;

		vcc1-supply = <&vcc33_sys>;
		vcc2-supply = <&vcc33_sys>;
		vcc3-supply = <&vcc33_sys>;
		vcc4-supply = <&vcc33_sys>;
		vcc6-supply = <&vcc_5v>;
		vcc7-supply = <&vcc33_sys>;
		vcc8-supply = <&vcc33_sys>;
		vcc12-supply = <&vcc_18>;
		vddio-supply = <&vcc33_io>;

		regulators {
			vdd_cpu: DCDC_REG1 {
				regulator-name = "vdd_arm";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <750000>;
				regulator-max-microvolt = <1450000>;
				regulator-ramp-delay = <6001>;
				regulator-state-mem {
					regulator-off-in-suspend;
				};
			};

			vdd_gpu: DCDC_REG2 {
				regulator-name = "vdd_gpu";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1250000>;
				regulator-ramp-delay = <6001>;
				regulator-state-mem {
					regulator-off-in-suspend;
				};
			};

			vcc135_ddr: DCDC_REG3 {
				regulator-name = "vcc135_ddr";
				regulator-always-on;
				regulator-boot-on;
				regulator-state-mem {
					regulator-on-in-suspend;
				};
			};

			/*
			 * vcc_18 has several aliases.  (vcc18_flashio and
			 * vcc18_wl).  We'll add those aliases here just to
			 * make it easier to follow the schematic.  The signals
			 * are actually hooked together and only separated for
			 * power measurement purposes).
			 */
			vcc18_wl: vcc18_flashio: vcc_18: DCDC_REG4 {
				regulator-name = "vcc_18";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <1800000>;
				};
			};

			/*
			 * Note that both vcc33_io and vcc33_pmuio are always
			 * powered together. To simplify the logic in the dts
			 * we just refer to vcc33_io every time something is
			 * powered from vcc33_pmuio. In fact, on later boards
			 * (such as danger) they're the same net.
			 */
			vcc33_io: LDO_REG1 {
				regulator-name = "vcc33_io";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <3300000>;
				};
			};

			vdd_10: LDO_REG3 {
				regulator-name = "vdd_10";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1000000>;
				regulator-max-microvolt = <1000000>;
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <1000000>;
				};
			};

			vdd10_lcd_pwren_h: LDO_REG7 {
				regulator-name = "vdd10_lcd_pwren_h";
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <2500000>;
				regulator-max-microvolt = <2500000>;
				regulator-state-mem {
					regulator-off-in-suspend;
				};
			};

			vcc33_lcd: SWITCH_REG1 {
				regulator-name = "vcc33_lcd";
				regulator-always-on;
				regulator-boot-on;
				regulator-state-mem {
					regulator-off-in-suspend;
				};
			};
		};
	};
};

&i2c1 {
	status = "okay";

	clock-frequency = <400000>;
	i2c-scl-falling-time-ns = <50>;		/* 2.5ns measured */
	i2c-scl-rising-time-ns = <100>;		/* 40ns measured */

	tpm: tpm@20 {
		compatible = "infineon,slb9645tt";
		reg = <0x20>;
		powered-while-suspended;
	};
};

&i2c2 {
	status = "okay";

	/* 100kHz since 4.7k resistors don't rise fast enough */
	clock-frequency = <100000>;
	i2c-scl-falling-time-ns = <50>;		/* 10ns measured */
	i2c-scl-rising-time-ns = <800>;		/* 600ns measured */
};

&i2c4 {
	status = "okay";

	clock-frequency = <400000>;
	i2c-scl-falling-time-ns = <50>;		/* 11ns measured */
	i2c-scl-rising-time-ns = <300>;		/* 225ns measured */
};

&io_domains {
	status = "okay";

	bb-supply = <&vcc33_io>;
	dvp-supply = <&vcc_18>;
	flash0-supply = <&vcc18_flashio>;
	gpio1830-supply = <&vcc33_io>;
	gpio30-supply = <&vcc33_io>;
	lcdc-supply = <&vcc33_lcd>;
	wifi-supply = <&vcc18_wl>;
};

&pwm1 {
	status = "okay";
};

&sdio0 {
	status = "okay";

	bus-width = <4>;
	cap-sd-highspeed;
	cap-sdio-irq;
	keep-power-in-suspend;
	mmc-pwrseq = <&sdio_pwrseq>;
	non-removable;
	pinctrl-names = "default";
	pinctrl-0 = <&sdio0_clk &sdio0_cmd &sdio0_bus4>;
	sd-uhs-sdr12;
	sd-uhs-sdr25;
	sd-uhs-sdr50;
	sd-uhs-sdr104;
	vmmc-supply = <&vcc33_sys>;
	vqmmc-supply = <&vcc18_wl>;
};

&spi2 {
	status = "okay";

	rx-sample-delay-ns = <12>;

	flash@0 {
		compatible = "jedec,spi-nor";
		spi-max-frequency = <50000000>;
		reg = <0>;
	};
};

&tsadc {
	status = "okay";

	rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */
	rockchip,hw-tshut-polarity = <1>; /* tshut polarity 0:LOW 1:HIGH */
	rockchip,hw-tshut-temp = <125000>;
};

&uart0 {
	status = "okay";

	/* Pins don't include flow control by default; add that in */
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
};

&uart1 {
	status = "okay";
};

&uart2 {
	status = "okay";
};

&usbphy {
	status = "okay";
};

&usb_host0_ehci {
	status = "okay";

	needs-reset-on-resume;
};

&usb_host1 {
	status = "okay";
	snps,need-phy-for-wake;
};

&usb_otg {
	status = "okay";

	assigned-clocks = <&cru SCLK_USBPHY480M_SRC>;
	assigned-clock-parents = <&usbphy0>;
	dr_mode = "host";
	snps,need-phy-for-wake;
};

&vopb {
	status = "okay";
};

&vopb_mmu {
	status = "okay";
};

&wdt {
	status = "okay";
};

&pinctrl {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <
		/* Common for sleep and wake, but no owners */
		&ddr0_retention
		&ddrio_pwroff
		&global_pwroff

		/* Wake only */
		&bt_dev_wake_awake
	>;
	pinctrl-1 = <
		/* Common for sleep and wake, but no owners */
		&ddr0_retention
		&ddrio_pwroff
		&global_pwroff

		/* Sleep only */
		&bt_dev_wake_sleep
	>;

	pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
		bias-disable;
		drive-strength = <8>;
	};

	pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
		bias-pull-up;
		drive-strength = <8>;
	};

	pcfg_output_high: pcfg-output-high {
		output-high;
	};

	pcfg_output_low: pcfg-output-low {
		output-low;
	};

	buttons {
		pwr_key_l: pwr-key-l {
			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	emmc {
		emmc_reset: emmc-reset {
			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		/*
		 * We run eMMC at max speed; bump up drive strength.
		 * We also have external pulls, so disable the internal ones.
		 */
		emmc_clk: emmc-clk {
			rockchip,pins = <3 RK_PC2 2 &pcfg_pull_none_drv_8ma>;
		};

		emmc_cmd: emmc-cmd {
			rockchip,pins = <3 RK_PC0 2 &pcfg_pull_none_drv_8ma>;
		};

		emmc_bus8: emmc-bus8 {
			rockchip,pins = <3 RK_PA0 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA1 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA2 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA3 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA4 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA5 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA6 2 &pcfg_pull_none_drv_8ma>,
					<3 RK_PA7 2 &pcfg_pull_none_drv_8ma>;
		};
	};

	pmic {
		pmic_int_l: pmic-int-l {
			rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	reboot {
		ap_warm_reset_h: ap-warm-reset-h {
			rockchip,pins = <0 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};

	recovery-switch {
		rec_mode_l: rec-mode-l {
			rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	sdio0 {
		wifi_enable_h: wifienable-h {
			rockchip,pins = <4 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		/* NOTE: mislabelled on schematic; should be bt_enable_h */
		bt_enable_l: bt-enable-l {
			rockchip,pins = <4 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		bt_host_wake: bt-host-wake {
			rockchip,pins = <4 RK_PD7 RK_FUNC_GPIO &pcfg_pull_down>;
		};

		bt_host_wake_l: bt-host-wake-l {
			rockchip,pins = <4 RK_PD7 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		/*
		 * We run sdio0 at max speed; bump up drive strength.
		 * We also have external pulls, so disable the internal ones.
		 */
		sdio0_bus4: sdio0-bus4 {
			rockchip,pins = <4 RK_PC4 1 &pcfg_pull_none_drv_8ma>,
					<4 RK_PC5 1 &pcfg_pull_none_drv_8ma>,
					<4 RK_PC6 1 &pcfg_pull_none_drv_8ma>,
					<4 RK_PC7 1 &pcfg_pull_none_drv_8ma>;
		};

		sdio0_cmd: sdio0-cmd {
			rockchip,pins = <4 RK_PD0 1 &pcfg_pull_none_drv_8ma>;
		};

		sdio0_clk: sdio0-clk {
			rockchip,pins = <4 RK_PD1 1 &pcfg_pull_none_drv_8ma>;
		};

		/*
		 * These pins are only present on very new veyron boards; on
		 * older boards bt_dev_wake is simply always high.  Note that
		 * gpio4_D2 is a NC on old veyron boards, so it doesn't hurt
		 * to map this pin everywhere
		 */
		bt_dev_wake_sleep: bt-dev-wake-sleep {
			rockchip,pins = <4 RK_PD2 RK_FUNC_GPIO &pcfg_output_low>;
		};

		bt_dev_wake_awake: bt-dev-wake-awake {
			rockchip,pins = <4 RK_PD2 RK_FUNC_GPIO &pcfg_output_high>;
		};
	};

	tpm {
		tpm_int_h: tpm-int-h {
			rockchip,pins = <7 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};

	write-protect {
		fw_wp_ap: fw-wp-ap {
			rockchip,pins = <7 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};
};