186e8f528SBintian Wang/* 286e8f528SBintian Wang * dts file for Hisilicon HiKey Development Board 386e8f528SBintian Wang * 486e8f528SBintian Wang * Copyright (C) 2015, Hisilicon Ltd. 586e8f528SBintian Wang * 686e8f528SBintian Wang */ 786e8f528SBintian Wang 886e8f528SBintian Wang/dts-v1/; 986e8f528SBintian Wang#include "hi6220.dtsi" 10379e9bf5SZhong Kaihua#include "hikey-pinctrl.dtsi" 11a817137aSChen Feng#include <dt-bindings/gpio/gpio.h> 1286e8f528SBintian Wang 1386e8f528SBintian Wang/ { 1486e8f528SBintian Wang model = "HiKey Development Board"; 1586e8f528SBintian Wang compatible = "hisilicon,hi6220-hikey", "hisilicon,hi6220"; 1686e8f528SBintian Wang 1786e8f528SBintian Wang aliases { 18a362ec8fSTyler Baker serial0 = &uart0; /* On board UART0 */ 19a362ec8fSTyler Baker serial1 = &uart1; /* BT UART */ 20a362ec8fSTyler Baker serial2 = &uart2; /* LS Expansion UART0 */ 21a362ec8fSTyler Baker serial3 = &uart3; /* LS Expansion UART1 */ 2286e8f528SBintian Wang }; 2386e8f528SBintian Wang 2486e8f528SBintian Wang chosen { 25a362ec8fSTyler Baker stdout-path = "serial3:115200n8"; 2686e8f528SBintian Wang }; 2786e8f528SBintian Wang 286da3aba6SLeo Yan /* 296da3aba6SLeo Yan * Reserve below regions from memory node: 306da3aba6SLeo Yan * 316da3aba6SLeo Yan * 0x05e0,0000 - 0x05ef,ffff: MCU firmware runtime using 326da3aba6SLeo Yan * 0x06df,f000 - 0x06df,ffff: Mailbox message data 336da3aba6SLeo Yan * 0x0740,f000 - 0x0740,ffff: MCU firmware section 346da3aba6SLeo Yan * 0x3e00,0000 - 0x3fff,ffff: OP-TEE 356da3aba6SLeo Yan */ 3686e8f528SBintian Wang memory@0 { 3786e8f528SBintian Wang device_type = "memory"; 386da3aba6SLeo Yan reg = <0x00000000 0x00000000 0x00000000 0x05e00000>, 396da3aba6SLeo Yan <0x00000000 0x05f00000 0x00000000 0x00eff000>, 406da3aba6SLeo Yan <0x00000000 0x06e00000 0x00000000 0x0060f000>, 416da3aba6SLeo Yan <0x00000000 0x07410000 0x00000000 0x36bf0000>; 4286e8f528SBintian Wang }; 4360dac1b1SZhong Kaihua 4460dac1b1SZhong Kaihua soc { 4560dac1b1SZhong Kaihua spi0: spi@f7106000 { 4660dac1b1SZhong Kaihua status = "ok"; 4760dac1b1SZhong Kaihua }; 480c231751SGuodong Xu 490c231751SGuodong Xu i2c0: i2c@f7100000 { 500c231751SGuodong Xu status = "ok"; 510c231751SGuodong Xu }; 520c231751SGuodong Xu 530c231751SGuodong Xu i2c1: i2c@f7101000 { 540c231751SGuodong Xu status = "ok"; 550c231751SGuodong Xu }; 56c2aad932SGuodong Xu 57c2aad932SGuodong Xu uart1: uart@f7111000 { 58c2aad932SGuodong Xu status = "ok"; 59c2aad932SGuodong Xu }; 60c2aad932SGuodong Xu 61c2aad932SGuodong Xu uart2: uart@f7112000 { 62c2aad932SGuodong Xu status = "ok"; 63c2aad932SGuodong Xu }; 64c2aad932SGuodong Xu 65c2aad932SGuodong Xu uart3: uart@f7113000 { 66c2aad932SGuodong Xu status = "ok"; 67c2aad932SGuodong Xu }; 68841478d4SGuodong Xu 69bbaf867eSLinus Walleij /* 70bbaf867eSLinus Walleij * Legend: proper name = the GPIO line is used as GPIO 71bbaf867eSLinus Walleij * NC = not connected (not routed from the SoC) 72bbaf867eSLinus Walleij * "[PER]" = pin is muxed for peripheral (not GPIO) 73bbaf867eSLinus Walleij * "" = no idea, schematic doesn't say, could be 74bbaf867eSLinus Walleij * unrouted (not connected to any external pin) 75bbaf867eSLinus Walleij * LSEC = Low Speed External Connector 76bbaf867eSLinus Walleij * HSEC = High Speed External Connector 77bbaf867eSLinus Walleij * 78bbaf867eSLinus Walleij * Pin assignments taken from LeMaker and CircuitCo Schematics 79bbaf867eSLinus Walleij * Rev A1. 80bbaf867eSLinus Walleij * 81bbaf867eSLinus Walleij * For the lines routed to the external connectors the 82bbaf867eSLinus Walleij * lines are named after the 96Boards CE Specification 1.0, 83bbaf867eSLinus Walleij * Appendix "Expansion Connector Signal Description". 84bbaf867eSLinus Walleij * 85bbaf867eSLinus Walleij * When the 96Board naming of a line and the schematic name of 86bbaf867eSLinus Walleij * the same line are in conflict, the 96Board specification 87bbaf867eSLinus Walleij * takes precedence, which means that the external UART on the 88bbaf867eSLinus Walleij * LSEC is named UART0 while the schematic and SoC names this 89bbaf867eSLinus Walleij * UART2. This is only for the informational lines i.e. "[FOO]", 90bbaf867eSLinus Walleij * the GPIO named lines "GPIO-A" thru "GPIO-L" are the only 91bbaf867eSLinus Walleij * ones actually used for GPIO. 92bbaf867eSLinus Walleij */ 93bbaf867eSLinus Walleij gpio0: gpio@f8011000 { 94bbaf867eSLinus Walleij gpio-line-names = "PWR_HOLD", "DSI_SEL", 95bbaf867eSLinus Walleij "USB_HUB_RESET_N", "USB_SEL", "HDMI_PD", "WL_REG_ON", 96bbaf867eSLinus Walleij "PWRON_DET", "5V_HUB_EN"; 97bbaf867eSLinus Walleij }; 98bbaf867eSLinus Walleij 99bbaf867eSLinus Walleij gpio1: gpio@f8012000 { 100bbaf867eSLinus Walleij gpio-line-names = "SD_DET", "HDMI_INT", "PMU_IRQ_N", 101bbaf867eSLinus Walleij "WL_HOST_WAKE", "NC", "NC", "NC", "BT_REG_ON"; 102bbaf867eSLinus Walleij }; 103bbaf867eSLinus Walleij 104bbaf867eSLinus Walleij gpio2: gpio@f8013000 { 105bbaf867eSLinus Walleij gpio-line-names = 106bbaf867eSLinus Walleij "GPIO-A", /* LSEC Pin 23: GPIO2_0 */ 107bbaf867eSLinus Walleij "GPIO-B", /* LSEC Pin 24: GPIO2_1 */ 108bbaf867eSLinus Walleij "GPIO-C", /* LSEC Pin 25: GPIO2_2 */ 109bbaf867eSLinus Walleij "GPIO-D", /* LSEC Pin 26: GPIO2_3 */ 110bbaf867eSLinus Walleij "GPIO-E", /* LSEC Pin 27: GPIO2_4 */ 111bbaf867eSLinus Walleij "USB_ID_DET", "USB_VBUS_DET", 112bbaf867eSLinus Walleij "GPIO-H"; /* LSEC Pin 30: GPIO2_7 */ 113bbaf867eSLinus Walleij }; 114bbaf867eSLinus Walleij 115bbaf867eSLinus Walleij gpio3: gpio@f8014000 { 116bbaf867eSLinus Walleij gpio-line-names = "GPIO3_0", "NC", "NC", "", "NC", "", 117bbaf867eSLinus Walleij "WLAN_ACTIVE", "NC", "NC"; 118bbaf867eSLinus Walleij }; 119bbaf867eSLinus Walleij 120bbaf867eSLinus Walleij gpio4: gpio@f7020000 { 121bbaf867eSLinus Walleij gpio-line-names = "USER_LED1", "USER_LED2", "USER_LED3", 122bbaf867eSLinus Walleij "USER_LED4", "SD_SEL", "NC", "NC", "BT_ACTIVE"; 123bbaf867eSLinus Walleij }; 124bbaf867eSLinus Walleij 125bbaf867eSLinus Walleij gpio5: gpio@f7021000 { 126bbaf867eSLinus Walleij gpio-line-names = "NC", "NC", 127bbaf867eSLinus Walleij "[UART1_RxD]", /* LSEC Pin 11: UART3_RX */ 128bbaf867eSLinus Walleij "[UART1_TxD]", /* LSEC Pin 13: UART3_TX */ 129bbaf867eSLinus Walleij "[AUX_SSI1]", "NC", 130bbaf867eSLinus Walleij "[PCM_CLK]", /* LSEC Pin 18: MODEM_PCM_XCLK */ 131bbaf867eSLinus Walleij "[PCM_FS]"; /* LSEC Pin 16: MODEM_PCM_XFS */ 132bbaf867eSLinus Walleij }; 133bbaf867eSLinus Walleij 134bbaf867eSLinus Walleij gpio6: gpio@f7022000 { 135bbaf867eSLinus Walleij gpio-line-names = 136bbaf867eSLinus Walleij "[SPI0_DIN]", /* Pin 10: SPI0_DI */ 137bbaf867eSLinus Walleij "[SPI0_DOUT]", /* Pin 14: SPI0_DO */ 138bbaf867eSLinus Walleij "[SPI0_CS]", /* Pin 12: SPI0_CS_N */ 139bbaf867eSLinus Walleij "[SPI0_SCLK]", /* Pin 8: SPI0_SCLK */ 140bbaf867eSLinus Walleij "NC", "NC", "NC", 141bbaf867eSLinus Walleij "GPIO-G"; /* Pin 29: GPIO6_7_DSI_TE0 */ 142bbaf867eSLinus Walleij }; 143bbaf867eSLinus Walleij 144bbaf867eSLinus Walleij gpio7: gpio@f7023000 { 145bbaf867eSLinus Walleij gpio-line-names = "NC", "NC", "NC", "NC", 146bbaf867eSLinus Walleij "[PCM_DI]", /* Pin 22: MODEM_PCM_DI */ 147bbaf867eSLinus Walleij "[PCM_DO]", /* Pin 20: MODEM_PCM_DO */ 148bbaf867eSLinus Walleij "NC", "NC"; 149bbaf867eSLinus Walleij }; 150bbaf867eSLinus Walleij 151bbaf867eSLinus Walleij gpio8: gpio@f7024000 { 152bbaf867eSLinus Walleij gpio-line-names = "NC", "[CEC_CLK_19_2MHZ]", "NC", 153bbaf867eSLinus Walleij "", "", "", "", "", ""; 154bbaf867eSLinus Walleij }; 155bbaf867eSLinus Walleij 156bbaf867eSLinus Walleij gpio9: gpio@f7025000 { 157bbaf867eSLinus Walleij gpio-line-names = "", 158bbaf867eSLinus Walleij "GPIO-J", /* LSEC Pin 32: ISP_PWDN0_GPIO9_1 */ 159bbaf867eSLinus Walleij "GPIO-L", /* LSEC Pin 34: ISP_PWDN1_GPIO9_2 */ 160bbaf867eSLinus Walleij "NC", "NC", "NC", "NC", "[ISP_CCLK0]"; 161bbaf867eSLinus Walleij }; 162bbaf867eSLinus Walleij 163bbaf867eSLinus Walleij gpio10: gpio@f7026000 { 164bbaf867eSLinus Walleij gpio-line-names = "BOOT_SEL", 165bbaf867eSLinus Walleij "[ISP_CCLK1]", 166bbaf867eSLinus Walleij "GPIO-I", /* LSEC Pin 31: ISP_RSTB0_GPIO10_2 */ 167bbaf867eSLinus Walleij "GPIO-K", /* LSEC Pin 33: ISP_RSTB1_GPIO10_3 */ 168bbaf867eSLinus Walleij "NC", "NC", 169bbaf867eSLinus Walleij "[I2C2_SDA]", /* HSEC Pin 34: ISP0_SDA */ 170bbaf867eSLinus Walleij "[I2C2_SCL]"; /* HSEC Pin 32: ISP0_SCL */ 171bbaf867eSLinus Walleij }; 172bbaf867eSLinus Walleij 173bbaf867eSLinus Walleij gpio11: gpio@f7027000 { 174bbaf867eSLinus Walleij gpio-line-names = 175bbaf867eSLinus Walleij "[I2C3_SDA]", /* HSEC Pin 38: ISP1_SDA */ 176bbaf867eSLinus Walleij "[I2C3_SCL]", /* HSEC Pin 36: ISP1_SCL */ 177bbaf867eSLinus Walleij "", "NC", "NC", "NC", "", ""; 178bbaf867eSLinus Walleij }; 179bbaf867eSLinus Walleij 180bbaf867eSLinus Walleij gpio12: gpio@f7028000 { 181bbaf867eSLinus Walleij gpio-line-names = "[BT_PCM_XFS]", "[BT_PCM_DI]", 182bbaf867eSLinus Walleij "[BT_PCM_DO]", 183bbaf867eSLinus Walleij "NC", "NC", "NC", "NC", 184bbaf867eSLinus Walleij "GPIO-F"; /* LSEC Pin 28: BL_PWM_GPIO12_7 */ 185bbaf867eSLinus Walleij }; 186bbaf867eSLinus Walleij 187bbaf867eSLinus Walleij gpio13: gpio@f7029000 { 188bbaf867eSLinus Walleij gpio-line-names = "[UART0_RX]", "[UART0_TX]", 189bbaf867eSLinus Walleij "[BT_UART1_CTS]", "[BT_UART1_RTS]", 190bbaf867eSLinus Walleij "[BT_UART1_RX]", "[BT_UART1_TX]", 191bbaf867eSLinus Walleij "[UART0_CTS]", /* LSEC Pin 3: UART2_CTS_N */ 192bbaf867eSLinus Walleij "[UART0_RTS]"; /* LSEC Pin 9: UART2_RTS_N */ 193bbaf867eSLinus Walleij }; 194bbaf867eSLinus Walleij 195bbaf867eSLinus Walleij gpio14: gpio@f702a000 { 196bbaf867eSLinus Walleij gpio-line-names = 197bbaf867eSLinus Walleij "[UART0_RxD]", /* LSEC Pin 7: UART2_RX */ 198bbaf867eSLinus Walleij "[UART0_TxD]", /* LSEC Pin 5: UART2_TX */ 199bbaf867eSLinus Walleij "[I2C0_SCL]", /* LSEC Pin 15: I2C0_SCL */ 200bbaf867eSLinus Walleij "[I2C0_SDA]", /* LSEC Pin 17: I2C0_SDA */ 201bbaf867eSLinus Walleij "[I2C1_SCL]", /* LSEC Pin 19: I2C1_SCL */ 202bbaf867eSLinus Walleij "[I2C1_SDA]", /* LSEC Pin 21: I2C1_SDA */ 203bbaf867eSLinus Walleij "[I2C2_SCL]", "[I2C2_SDA]"; 204bbaf867eSLinus Walleij }; 205bbaf867eSLinus Walleij 206bbaf867eSLinus Walleij gpio15: gpio@f702b000 { 207bbaf867eSLinus Walleij gpio-line-names = "", "", "", "", "", "", "NC", ""; 208bbaf867eSLinus Walleij }; 209bbaf867eSLinus Walleij 210bbaf867eSLinus Walleij /* GPIO blocks 16 thru 19 do not appear to be routed to pins */ 211bbaf867eSLinus Walleij 212841478d4SGuodong Xu dwmmc_2: dwmmc2@f723f000 { 213841478d4SGuodong Xu ti,non-removable; 214841478d4SGuodong Xu non-removable; 215841478d4SGuodong Xu /* WL_EN */ 216841478d4SGuodong Xu vmmc-supply = <&wlan_en_reg>; 217841478d4SGuodong Xu 218841478d4SGuodong Xu #address-cells = <0x1>; 219841478d4SGuodong Xu #size-cells = <0x0>; 220841478d4SGuodong Xu wlcore: wlcore@2 { 221841478d4SGuodong Xu compatible = "ti,wl1835"; 222841478d4SGuodong Xu reg = <2>; /* sdio func num */ 223841478d4SGuodong Xu /* WL_IRQ, WL_HOST_WAKE_GPIO1_3 */ 224841478d4SGuodong Xu interrupt-parent = <&gpio1>; 225841478d4SGuodong Xu interrupts = <3 IRQ_TYPE_EDGE_RISING>; 226841478d4SGuodong Xu }; 227841478d4SGuodong Xu }; 228841478d4SGuodong Xu 229841478d4SGuodong Xu wlan_en_reg: regulator@1 { 230841478d4SGuodong Xu compatible = "regulator-fixed"; 231841478d4SGuodong Xu regulator-name = "wlan-en-regulator"; 232841478d4SGuodong Xu regulator-min-microvolt = <1800000>; 233841478d4SGuodong Xu regulator-max-microvolt = <1800000>; 234841478d4SGuodong Xu /* WLAN_EN GPIO */ 235841478d4SGuodong Xu gpio = <&gpio0 5 0>; 236841478d4SGuodong Xu /* WLAN card specific delay */ 237841478d4SGuodong Xu startup-delay-us = <70000>; 238841478d4SGuodong Xu enable-active-high; 239841478d4SGuodong Xu }; 24060dac1b1SZhong Kaihua }; 241ad05f38bSGuodong Xu 242ad05f38bSGuodong Xu leds { 243ad05f38bSGuodong Xu compatible = "gpio-leds"; 244ad05f38bSGuodong Xu user_led4 { 245ad05f38bSGuodong Xu label = "user_led4"; 246ad05f38bSGuodong Xu gpios = <&gpio4 0 0>; /* <&gpio_user_led_1>; */ 247ad05f38bSGuodong Xu linux,default-trigger = "heartbeat"; 248ad05f38bSGuodong Xu }; 249ad05f38bSGuodong Xu 250ad05f38bSGuodong Xu user_led3 { 251ad05f38bSGuodong Xu label = "user_led3"; 252ad05f38bSGuodong Xu gpios = <&gpio4 1 0>; /* <&gpio_user_led_2>; */ 253ad05f38bSGuodong Xu linux,default-trigger = "mmc0"; 254ad05f38bSGuodong Xu }; 255ad05f38bSGuodong Xu 256ad05f38bSGuodong Xu user_led2 { 257ad05f38bSGuodong Xu label = "user_led2"; 258ad05f38bSGuodong Xu gpios = <&gpio4 2 0>; /* <&gpio_user_led_3>; */ 259ad05f38bSGuodong Xu linux,default-trigger = "mmc1"; 260ad05f38bSGuodong Xu }; 261ad05f38bSGuodong Xu 262ad05f38bSGuodong Xu user_led1 { 263ad05f38bSGuodong Xu label = "user_led1"; 264ad05f38bSGuodong Xu gpios = <&gpio4 3 0>; /* <&gpio_user_led_4>; */ 265ad05f38bSGuodong Xu linux,default-trigger = "cpu0"; 266ad05f38bSGuodong Xu }; 267ad05f38bSGuodong Xu 268ad05f38bSGuodong Xu wlan_active_led { 269ad05f38bSGuodong Xu label = "wifi_active"; 270ad05f38bSGuodong Xu gpios = <&gpio3 5 0>; /* <&gpio_wlan_active_led>; */ 271ad05f38bSGuodong Xu linux,default-trigger = "phy0tx"; 272ad05f38bSGuodong Xu default-state = "off"; 273ad05f38bSGuodong Xu }; 274ad05f38bSGuodong Xu 275ad05f38bSGuodong Xu bt_active_led { 276ad05f38bSGuodong Xu label = "bt_active"; 277ad05f38bSGuodong Xu gpios = <&gpio4 7 0>; /* <&gpio_bt_active_led>; */ 278ad05f38bSGuodong Xu linux,default-trigger = "hci0rx"; 279ad05f38bSGuodong Xu default-state = "off"; 280ad05f38bSGuodong Xu }; 281ad05f38bSGuodong Xu }; 282a817137aSChen Feng 283a817137aSChen Feng pmic: pmic@f8000000 { 284a817137aSChen Feng compatible = "hisilicon,hi655x-pmic"; 285a817137aSChen Feng reg = <0x0 0xf8000000 0x0 0x1000>; 286a817137aSChen Feng interrupt-controller; 287a817137aSChen Feng #interrupt-cells = <2>; 288a817137aSChen Feng pmic-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>; 289a817137aSChen Feng 290a817137aSChen Feng regulators { 291a817137aSChen Feng ldo2: LDO2 { 292a817137aSChen Feng regulator-name = "LDO2_2V8"; 293a817137aSChen Feng regulator-min-microvolt = <2500000>; 294a817137aSChen Feng regulator-max-microvolt = <3200000>; 295a817137aSChen Feng regulator-enable-ramp-delay = <120>; 296a817137aSChen Feng }; 297a817137aSChen Feng 298a817137aSChen Feng ldo7: LDO7 { 299a817137aSChen Feng regulator-name = "LDO7_SDIO"; 300a817137aSChen Feng regulator-min-microvolt = <1800000>; 301a817137aSChen Feng regulator-max-microvolt = <3300000>; 302a817137aSChen Feng regulator-enable-ramp-delay = <120>; 303a817137aSChen Feng }; 304a817137aSChen Feng 305a817137aSChen Feng ldo10: LDO10 { 306a817137aSChen Feng regulator-name = "LDO10_2V85"; 307a817137aSChen Feng regulator-min-microvolt = <1800000>; 308a817137aSChen Feng regulator-max-microvolt = <3000000>; 309a817137aSChen Feng regulator-enable-ramp-delay = <360>; 310a817137aSChen Feng }; 311a817137aSChen Feng 312a817137aSChen Feng ldo13: LDO13 { 313a817137aSChen Feng regulator-name = "LDO13_1V8"; 314a817137aSChen Feng regulator-min-microvolt = <1600000>; 315a817137aSChen Feng regulator-max-microvolt = <1950000>; 316a817137aSChen Feng regulator-enable-ramp-delay = <120>; 317a817137aSChen Feng }; 318a817137aSChen Feng 319a817137aSChen Feng ldo14: LDO14 { 320a817137aSChen Feng regulator-name = "LDO14_2V8"; 321a817137aSChen Feng regulator-min-microvolt = <2500000>; 322a817137aSChen Feng regulator-max-microvolt = <3200000>; 323a817137aSChen Feng regulator-enable-ramp-delay = <120>; 324a817137aSChen Feng }; 325a817137aSChen Feng 326a817137aSChen Feng ldo15: LDO15 { 327a817137aSChen Feng regulator-name = "LDO15_1V8"; 328a817137aSChen Feng regulator-min-microvolt = <1600000>; 329a817137aSChen Feng regulator-max-microvolt = <1950000>; 330a817137aSChen Feng regulator-boot-on; 331a817137aSChen Feng regulator-always-on; 332a817137aSChen Feng regulator-enable-ramp-delay = <120>; 333a817137aSChen Feng }; 334a817137aSChen Feng 335a817137aSChen Feng ldo17: LDO17 { 336a817137aSChen Feng regulator-name = "LDO17_2V5"; 337a817137aSChen Feng regulator-min-microvolt = <2500000>; 338a817137aSChen Feng regulator-max-microvolt = <3200000>; 339a817137aSChen Feng regulator-enable-ramp-delay = <120>; 340a817137aSChen Feng }; 341a817137aSChen Feng 342a817137aSChen Feng ldo19: LDO19 { 343a817137aSChen Feng regulator-name = "LDO19_3V0"; 344a817137aSChen Feng regulator-min-microvolt = <1800000>; 345a817137aSChen Feng regulator-max-microvolt = <3000000>; 346a817137aSChen Feng regulator-enable-ramp-delay = <360>; 347a817137aSChen Feng }; 348a817137aSChen Feng 349a817137aSChen Feng ldo21: LDO21 { 350a817137aSChen Feng regulator-name = "LDO21_1V8"; 351a817137aSChen Feng regulator-min-microvolt = <1650000>; 352a817137aSChen Feng regulator-max-microvolt = <2000000>; 353a817137aSChen Feng regulator-always-on; 354a817137aSChen Feng regulator-enable-ramp-delay = <120>; 355a817137aSChen Feng }; 356a817137aSChen Feng 357a817137aSChen Feng ldo22: LDO22 { 358a817137aSChen Feng regulator-name = "LDO22_1V2"; 359a817137aSChen Feng regulator-min-microvolt = <900000>; 360a817137aSChen Feng regulator-max-microvolt = <1200000>; 361a817137aSChen Feng regulator-boot-on; 362a817137aSChen Feng regulator-always-on; 363a817137aSChen Feng regulator-enable-ramp-delay = <120>; 364a817137aSChen Feng }; 365a817137aSChen Feng }; 366a817137aSChen Feng }; 36786e8f528SBintian Wang}; 368dd90caacSRob Herring 369dd90caacSRob Herring&uart2 { 370dd90caacSRob Herring label = "LS-UART0"; 371dd90caacSRob Herring}; 372dd90caacSRob Herring&uart3 { 373dd90caacSRob Herring label = "LS-UART1"; 374dd90caacSRob Herring}; 375