arm64: dts: rockchip: add rk3358m automotive board support

Change-Id: I48e6d2748f5d7ab2681a8c13c54a92252d56eb59
Signed-off-by: Jianlong Wang <jianlong.wang@rock-chips.com>

arch/arm64/boot/dts/rockchip/Makefile

@@ -47,6 +47,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-rock-pi-e.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-roc-cc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3358-evb-ddr3-v10-linux.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3358m-automotive-ddr3-v11-linux.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3358m-vehicle-v10.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-geekbox.dtb

arch/arm64/boot/dts/rockchip/rk3358m-automotive-ddr3-v11-linux.dts

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
+ *
+ */
+
+/dts-v1/;
+
+#include "rk3358m-automotive-ddr3-v11.dtsi"
+#include "rk3358-linux.dtsi"
+
+/ {
+	model = "Rockchip RK3358M AUTOMOTIVE DDR3 V11 board";
+	compatible = "rockchip,rk3358m-automotive-ddr3-v11-linux", "rockchip,px30", "rockchip,rk3358";
+
+	chosen {
+		bootargs = "earlycon=uart8250,mmio32,0xff160000 console=ttyFIQ0 skip_initramfs root=/dev/rd0 rootfstype=squashfs init=/sbin/init";
+	};
+
+	/*
+	 * This memory mapping range represents a 512MB memory space
+	 * starting from the physical address 0x00000000
+	 * where:
+	 * 0x00000000 - base address
+	 * 0x0 - address cells
+	 * 0x0 - size cells
+	 * 0x20000000 - memory size (512MB)
+	 * Note: The actual available memory size depends on the hardware design
+	 * and may differ from the 512MB defined here.
+	 * Adjustment is needed based on the specific hardware memory configuration.
+	 */
+	memory: memory {
+		device_type = "memory";
+		reg = <0x00000000 0x0 0x0 0x20000000>;
+	};
+
+	ramdisk: ramdisk {
+		compatible = "rockchip,ramdisk";
+		memory-region = <&ramdisk_r>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		atf: atf@0 {
+			reg = <0x0 0x00000 0x0 0x200000>;
+			no-map;
+		};
+
+		mmc_dma_buf@200000 {
+			reg = <0x0 0x200000 0x0 0x200000>;
+		};
+
+		ramdisk_r: ramdisk_r@4000000 {
+			/* Do not exceed 132MB which used by TEE */
+			reg = <0x0 0x4000000 0x0 0x2000000>;
+		};
+	};
+};

arch/arm64/boot/dts/rockchip/rk3358m-automotive-ddr3-v11.dtsi

@@ -0,0 +1,730 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd
+ *
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/display/drm_mipi_dsi.h>
+#include "rk3358.dtsi"
+
+/ {
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 2>;
+		io-channel-names = "buttons";
+		poll-interval = <100>;
+		keyup-threshold-microvolt = <1800000>;
+
+		vol-down-key {
+			linux,code = <KEY_VOLUMEDOWN>;
+			label = "volume down";
+			press-threshold-microvolt = <300000>;
+		};
+
+		vol-up-key {
+			linux,code = <KEY_VOLUMEUP>;
+			label = "volume up";
+			press-threshold-microvolt = <17000>;
+		};
+	};
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm3 0 10000000 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&lcd0_pwren &lcd0_rst>;
+		enable-gpios = <&gpio1 RK_PD6 GPIO_ACTIVE_HIGH>;
+		brightness-levels = <
+			  0   1   2   3   4   5   6   7
+			  8   9  10  11  12  13  14  15
+			 16  17  18  19  20  21  22  23
+			 24  25  26  27  28  29  30  31
+			 32  33  34  35  36  37  38  39
+			 40  41  42  43  44  45  46  47
+			 48  49  50  51  52  53  54  55
+			 56  57  58  59  60  61  62  63
+			 64  65  66  67  68  69  70  71
+			 72  73  74  75  76  77  78  79
+			 80  81  82  83  84  85  86  87
+			 88  89  90  91  92  93  94  95
+			 96  97  98  99 100 101 102 103
+			104 105 106 107 108 109 110 111
+			112 113 114 115 116 117 118 119
+			120 121 122 123 124 125 126 127
+			128 129 130 131 132 133 134 135
+			136 137 138 139 140 141 142 143
+			144 145 146 147 148 149 150 151
+			152 153 154 155 156 157 158 159
+			160 161 162 163 164 165 166 167
+			168 169 170 171 172 173 174 175
+			176 177 178 179 180 181 182 183
+			184 185 186 187 188 189 190 191
+			192 193 194 195 196 197 198 199
+			200 201 202 203 204 205 206 207
+			208 209 210 211 212 213 214 215
+			216 217 218 219 220 221 222 223
+			224 225 226 227 228 229 230 231
+			232 233 234 235 236 237 238 239
+			240 241 242 243 244 245 246 247
+			248 249 250 251 252 253 254 255>;
+		default-brightness-level = <60>;
+	};
+
+	/* The THine 827-Q (rgb to dual lvds) don't need driver */
+	panel_rgb: panel-rgb {
+		compatible = "simple-panel";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwdn_rgb>; /* This the pwdn of THine-827-Q */
+		power-supply = <&vcc3v3_lcd>;
+		backlight = <&backlight>;
+		enable-gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio1 RK_PD7 GPIO_ACTIVE_LOW>;
+		prepare-delay-ms = <0>;
+		reset-delay-ms = <0>;
+		init-delay-ms = <0>;
+		enable-delay-ms = <5>;
+		disable-delay-ms = <10>;
+		unprepare-delay-ms = <0>;
+
+		width-mm = <292>;
+		height-mm = <109>;
+
+		bus-format = <MEDIA_BUS_FMT_RGB888_1X24>;
+
+		display-timings {
+			native-mode = <&timing1>;
+
+			timing1: timing1 {
+				clock-frequency = <88200000>;
+				hactive = <1920>;
+				vactive = <720>;
+				hfront-porch = <40>;
+				hsync-len = <20>;
+				hback-porch = <24>;
+				vfront-porch = <5>;
+				vsync-len = <4>;
+				vback-porch = <4>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <0>;
+				pixelclk-active = <1>;
+			};
+		};
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				panel_in_rgb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&rgb_out_panel>;
+				};
+			};
+		};
+	};
+
+	rk809_sound: rk809-sound {
+		status = "okay";
+		compatible = "rockchip,multicodecs-card";
+		rockchip,card-name = "rockchip-rk809";
+		poll-interval = <100>;
+		rockchip,format = "i2s";
+		rockchip,mclk-fs = <256>;
+		rockchip,cpu = <&i2s1_2ch>;
+		rockchip,codec = <&rk809_codec>;
+	};
+
+	vcc5v0_sys: vcc5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vcc_phy: vcc-phy {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_phy";
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	/* It's just for compatibility with SDK script checks. */
+	wireless-bluetooth {
+		status = "disabled";
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&dfi {
+	status = "okay";
+};
+
+&display_subsystem {
+	status = "okay";
+};
+
+&dmc {
+	center-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&emmc {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	supports-emmc;
+	disable-wp;
+	non-removable;
+	num-slots = <1>;
+	status = "okay";
+};
+
+&gmac {
+	phy-supply = <&vcc_phy>;
+	clock_in_out = "output";
+	snps,reset-gpio = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 50000 50000>;
+	status = "okay";
+};
+
+&gpu {
+	mali-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&hevc {
+	status = "okay";
+};
+
+&hevc_mmu {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	rk809: pmic@20 {
+		compatible = "rockchip,rk809";
+		reg = <0x20>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default", "pmic-sleep",
+				"pmic-power-off", "pmic-reset";
+		pinctrl-0 = <&pmic_int>;
+		pinctrl-1 = <&soc_slppin_slp>, <&rk817_slppin_slp>;
+		pinctrl-2 = <&soc_slppin_gpio>, <&rk817_slppin_pwrdn>;
+		pinctrl-3 = <&soc_slppin_rst>, <&rk817_slppin_rst>;
+		rockchip,system-power-controller;
+		wakeup-source;
+		#clock-cells = <1>;
+		clock-output-names = "rk808-clkout1", "rk808-clkout2";
+		//fb-inner-reg-idxs = <2>;
+		/* 1: rst regs (default in codes), 0: rst the pmic */
+		pmic-reset-func = <1>;
+
+		vcc1-supply = <&vcc5v0_sys>;
+		vcc2-supply = <&vcc5v0_sys>;
+		vcc3-supply = <&vcc5v0_sys>;
+		vcc4-supply = <&vcc5v0_sys>;
+		vcc5-supply = <&vcc3v3_sys>;
+		vcc6-supply = <&vcc3v3_sys>;
+		vcc7-supply = <&vcc3v3_sys>;
+		vcc8-supply = <&vcc3v3_sys>;
+		vcc9-supply = <&vcc5v0_sys>;
+
+		pwrkey {
+			status = "okay";
+		};
+
+		pinctrl_rk8xx: pinctrl_rk8xx {
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			rk817_slppin_null: rk817_slppin_null {
+				pins = "gpio_slp";
+				function = "pin_fun0";
+			};
+
+			rk817_slppin_slp: rk817_slppin_slp {
+				pins = "gpio_slp";
+				function = "pin_fun1";
+			};
+
+			rk817_slppin_pwrdn: rk817_slppin_pwrdn {
+				pins = "gpio_slp";
+				function = "pin_fun2";
+			};
+
+			rk817_slppin_rst: rk817_slppin_rst {
+				pins = "gpio_slp";
+				function = "pin_fun3";
+			};
+		};
+
+		regulators {
+			vdd_logic: DCDC_REG1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-ramp-delay = <6001>;
+				regulator-initial-mode = <0x2>;
+				regulator-name = "vdd_logic";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <950000>;
+				};
+			};
+
+			vdd_arm: DCDC_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <950000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-ramp-delay = <6001>;
+				regulator-initial-mode = <0x2>;
+				regulator-name = "vdd_arm";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <950000>;
+				};
+			};
+
+			vcc_ddr: DCDC_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vcc_ddr";
+				regulator-initial-mode = <0x2>;
+				regulator-state-mem {
+					regulator-on-in-suspend;
+				};
+			};
+
+			vcc_3v3: DCDC_REG4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-initial-mode = <0x2>;
+				regulator-name = "vcc_3v3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc_1v0: LDO_REG1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-name = "vcc_1v0";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1000000>;
+				};
+			};
+
+			vcc_1v8: LDO_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+
+				regulator-name = "vcc_1v8";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd_1v0: LDO_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+
+				regulator-name = "vdd_1v0";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1000000>;
+				};
+			};
+
+			vcc3v3_pmu: LDO_REG4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+
+				regulator-name = "vcc3v3_pmu";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3000000>;
+
+				};
+			};
+
+			vcc3v3_ser: LDO_REG5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+
+				regulator-name = "vcc3v3_ser";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc3v3_deser: LDO_REG6 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-off;
+
+				regulator-name = "vcc3v3_deser";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+
+				};
+			};
+
+			vcc1v8_thc: LDO_REG7 {
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+
+				regulator-name = "vcc1v8_thc";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vcc1v8_ser: LDO_REG8 {
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+
+				regulator-name = "vcc1v8_ser";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd1v2_ser: LDO_REG9 {
+				regulator-boot-on;
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+
+				regulator-name = "vdd1v2_ser";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <1200000>;
+				};
+			};
+
+			vcc3v3_sys: DCDC_REG5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc3v3_sys";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc5v0_host: SWITCH_REG1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vcc5v0_host";
+			};
+
+			vcc3v3_lcd: SWITCH_REG2 {
+				regulator-boot-on;
+				regulator-name = "vcc3v3_lcd";
+			};
+		};
+
+		rk809_codec: codec {
+			#sound-dai-cells = <0>;
+			compatible = "rockchip,rk809-codec", "rockchip,rk817-codec";
+			clocks = <&cru SCLK_I2S1_OUT>;
+			clock-names = "mclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2s1_2ch_mclk>;
+			hp-volume = <20>;
+			spk-volume = <3>;
+			status = "okay";
+		};
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	/* These are relatively safe rise/fall times; TODO: measure */
+	i2c-scl-falling-time-ns = <50>;
+	i2c-scl-rising-time-ns = <300>;
+};
+
+&i2c2 {
+	status = "okay";
+	clock-frequency = <400000>;
+};
+
+&i2s1_2ch {
+	status = "okay";
+	#sound-dai-cells = <0>;
+};
+
+&io_domains {
+	status = "okay";
+
+	vccio1-supply = <&vcc_3v3>;
+	vccio2-supply = <&vcc_3v3>;
+	vccio3-supply = <&vcc_3v3>;
+	vccio4-supply = <&vcc3v3_pmu>;
+	vccio5-supply = <&vcc3v3_pmu>;
+};
+
+&isp_mmu {
+	status = "okay";
+};
+
+&mipi_dphy_rx0 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mipi_in_ucam: endpoint@1 {
+				reg = <1>;
+			//	remote-endpoint = <&ucam_out>;
+				data-lanes = <1 2>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			dphy_rx0_out: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&isp0_mipi_in>;
+			};
+		};
+	};
+};
+
+&mpp_srv {
+	status = "okay";
+};
+
+&pinctrl {
+	lcd {
+		lcd0_pwren: lcd0-pwren {
+			rockchip,pins = <1 RK_PD6 RK_FUNC_GPIO &pcfg_output_high>;
+		};
+		lcd0_rst: lcd0-rst {
+			rockchip,pins = <1 RK_PD7 RK_FUNC_GPIO &pcfg_output_high>;
+		};
+		pwdn_rgb: pwdn-rgb {
+			rockchip,pins = <1 RK_PD4 RK_FUNC_GPIO &pcfg_output_high>;
+		};
+	};
+
+	pmic {
+		pmic_int: pmic_int {
+			rockchip,pins =
+				<0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		soc_slppin_gpio: soc_slppin_gpio {
+			rockchip,pins =
+				<0 RK_PA4 RK_FUNC_GPIO &pcfg_output_low>;
+		};
+
+		soc_slppin_slp: soc_slppin_slp {
+			rockchip,pins =
+				<0 RK_PA4 1 &pcfg_pull_none>;
+		};
+
+		soc_slppin_rst: soc_slppin_rst {
+			rockchip,pins =
+				<0 RK_PA4 2 &pcfg_pull_none>;
+		};
+	};
+};
+
+&pmu_io_domains {
+	status = "okay";
+
+	pmuio1-supply = <&vcc3v3_pmu>;
+	pmuio2-supply = <&vcc3v3_pmu>;
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&rgb {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/delete-property/ phys;
+	/delete-property/ phy-names;
+
+	pinctrl-0 = <&lcdc_m0_rgb_pins>;
+	pinctrl-1 = <&lcdc_m0_sleep_pins>;
+
+	ports {
+		port@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rgb_out_panel: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&panel_in_rgb>;
+			};
+		};
+	};
+};
+
+&rgb_in_vopb {
+	status = "okay";
+};
+
+&rgb_in_vopl {
+	status = "disabled";
+};
+
+&rk_rga {
+	status = "okay";
+};
+
+&rkisp1 {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		isp0_mipi_in: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&dphy_rx0_out>;
+		};
+	};
+};
+
+&route_rgb {
+	connect = <&vopb_out_rgb>;
+	status = "okay";
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vcc_1v8>;
+};
+
+&spi0 {
+	status = "okay";
+};
+
+&tsadc {
+	pinctrl-names = "gpio", "otpout";
+	pinctrl-0 = <&tsadc_otp_gpio>;
+	pinctrl-1 = <&tsadc_otp_out>;
+	status = "okay";
+};
+
+&u2phy {
+	status = "okay";
+
+	u2phy_host: host-port {
+		status = "okay";
+		phy-supply = <&vcc5v0_host>;
+	};
+
+	u2phy_otg: otg-port {
+		status = "okay";
+	};
+};
+
+&usb20_otg {
+	status = "okay";
+};
+
+&usb_host0_ehci {
+	status = "okay";
+};
+
+&usb_host0_ohci {
+	status = "okay";
+};
+
+&vdpu {
+	status = "okay";
+};
+
+&vepu {
+	status = "okay";
+};
+
+&vopb {
+	status = "okay";
+};
+
+&vopb_mmu {
+	status = "okay";
+};
+
+&vopl {
+	status = "okay";
+};
+
+&vopl_mmu {
+	status = "okay";
+};
+
+&vpu_mmu {
+	status = "okay";
+};