/*
 * Google Veyron (and derivatives) board device tree source
 *
 * Copyright 2015 Google, Inc
 *
 * This file is dual-licensed: you can use it either under the terms
 * of the GPL or the X11 license, at your option. Note that this dual
 * licensing only applies to this file, and not this project as a
 * whole.
 *
 *  a) This file is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of the
 *     License, or (at your option) any later version.
 *
 *     This file is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *  Or, alternatively,
 *
 *  b) Permission is hereby granted, free of charge, to any person
 *     obtaining a copy of this software and associated documentation
 *     files (the "Software"), to deal in the Software without
 *     restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or
 *     sell copies of the Software, and to permit persons to whom the
 *     Software is furnished to do so, subject to the following
 *     conditions:
 *
 *     The above copyright notice and this permission notice shall be
 *     included in all copies or substantial portions of the Software.
 *
 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *     OTHER DEALINGS IN THE SOFTWARE.
 */

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

/ {
	memory {
		device_type = "memory";
		reg = <0x0 0x80000000>;
	};

	gpio_keys: gpio-keys {
		compatible = "gpio-keys";
		#address-cells = <1>;
		#size-cells = <0>;

		pinctrl-names = "default";
		pinctrl-0 = <&pwr_key_l>;
		power {
			label = "Power";
			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_POWER>;
			debounce-interval = <100>;
			gpio-key,wakeup;
		};
	};

	gpio-restart {
		compatible = "gpio-restart";
		gpios = <&gpio0 13 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 9 GPIO_ACTIVE_HIGH>;
	};

	io_domains: io-domains {
		compatible = "rockchip,rk3288-io-voltage-domain";
		rockchip,grf = <&grf>;

		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>;
	};

	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>;

		/*
		 * On the module itself this is one of these (depending
		 * on the actual card populated):
		 * - SDIO_RESET_L_WL_REG_ON
		 * - PDN (power down when low)
		 */
		reset-gpios = <&gpio4 28 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>;
	};
};

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

&emmc {
	status = "okay";

	broken-cd;
	bus-width = <8>;
	cap-mmc-highspeed;
	disable-wp;
	mmc-pwrseq = <&emmc_pwrseq>;
	non-removable;
	num-slots = <1>;
	pinctrl-names = "default";
	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
};

&hdmi {
	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 = <4 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-on-in-suspend;
					regulator-suspend-microvolt = <1000000>;
				};
			};

			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 */
};

&i2c5 {
	status = "okay";

	clock-frequency = <100000>;
	i2c-scl-falling-time-ns = <300>;
	i2c-scl-rising-time-ns = <1000>;
};

&pwm1 {
	status = "okay";
};

&sdio0 {
	status = "okay";

	broken-cd;
	bus-width = <4>;
	cap-sd-highspeed;
	cap-sdio-irq;
	keep-power-in-suspend;
	mmc-pwrseq = <&sdio_pwrseq>;
	non-removable;
	num-slots = <1>;
	pinctrl-names = "default";
	pinctrl-0 = <&sdio0_clk &sdio0_cmd &sdio0_bus4>;
	vmmc-supply = <&vcc33_sys>;
	vqmmc-supply = <&vcc18_wl>;
};

&spi2 {
	status = "okay";

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

&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 */
};

&uart0 {
	status = "okay";

	/* We need to go faster than 24MHz, so adjust clock parents / rates */
	assigned-clocks = <&cru SCLK_UART0>;
	assigned-clock-rates = <48000000>;

	/* 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";
};

&usb_otg {
	status = "okay";

	assigned-clocks = <&cru SCLK_USBPHY480M_SRC>;
	assigned-clock-parents = <&cru SCLK_OTGPHY0>;
	dr_mode = "host";
};

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

	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 5 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	emmc {
		emmc_reset: emmc-reset {
			rockchip,pins = <2 9 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 18 RK_FUNC_2 &pcfg_pull_none_drv_8ma>;
		};

		emmc_cmd: emmc-cmd {
			rockchip,pins = <3 16 RK_FUNC_2 &pcfg_pull_none_drv_8ma>;
		};

		emmc_bus8: emmc-bus8 {
			rockchip,pins = <3 0 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 1 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 2 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 3 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 4 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 5 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 6 RK_FUNC_2 &pcfg_pull_none_drv_8ma>,
					<3 7 RK_FUNC_2 &pcfg_pull_none_drv_8ma>;
		};
	};

	pmic {
		pmic_int_l: pmic-int-l {
			rockchip,pins = <RK_GPIO0 4 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	reboot {
		ap_warm_reset_h: ap-warm-reset-h {
			rockchip,pins = <RK_GPIO0 13 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};

	recovery-switch {
		rec_mode_l: rec-mode-l {
			rockchip,pins = <0 9 RK_FUNC_GPIO &pcfg_pull_up>;
		};
	};

	sdio0 {
		wifi_enable_h: wifienable-h {
			rockchip,pins = <4 28 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		/* NOTE: mislabelled on schematic; should be bt_enable_h */
		bt_enable_l: bt-enable-l {
			rockchip,pins = <4 29 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 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
					<4 21 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
					<4 22 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
					<4 23 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
		};

		sdio0_cmd: sdio0-cmd {
			rockchip,pins = <4 24 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
		};

		sdio0_clk: sdio0-clk {
			rockchip,pins = <4 25 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
		};
	};

	tpm {
		tpm_int_h: tpm-int-h {
			rockchip,pins = <7 4 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};

	/*
	 * On Marvell-based hardware this is a no-connect.  Make sure we enable
	 * the pullup so that the line doesn't float.  The pullup shouldn't
	 * hurt on Broadcom-based hardware since the other side is actively
	 * driving this signal.  As proof: we've already got a pullup on RX.
	 */
	uart0 {
		uart0_cts: uart0-cts {
			rockchip,pins = <4 18 RK_FUNC_1 &pcfg_pull_up>;
		};
	};

	write-protect {
		fw_wp_ap: fw-wp-ap {
			rockchip,pins = <7 6 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};
};