From: Anand Gadiyar <gadiyar@xxxxxx> The AM62x LP SK board is similar to the AM62x SK board, but has some not-so-minor changes that requires different device tree. The differences are mainly: - AM62x SoC in the AMC package that meets AECQ100 automotive standard. - LPDDR4 versus DDR4 on the AM62x SK. - TPS65219 PMIC instead of discrete regulators. - IO expander pin names are wired differently. - Second ethernet port is currently disabled as the boards do not have the part physically installed. - OSPI NAND vs OSPI NOR. - No WLAN chip instead a SDIO M.2 connector. Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx> [vigneshr@xxxxxx: Add PMIC node] Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 1 + arch/arm64/boot/dts/ti/k3-am62x-lp-sk.dts | 227 ++++++++++++++++++++++ 2 files changed, 228 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am62x-lp-sk.dts diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 6acd12409d59..6f740a58474f 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -10,6 +10,7 @@ # Boards with AM62x SoC dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am62x-lp-sk.dtb # Boards with AM62Ax SoC dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb diff --git a/arch/arm64/boot/dts/ti/k3-am62x-lp-sk.dts b/arch/arm64/boot/dts/ti/k3-am62x-lp-sk.dts new file mode 100644 index 000000000000..97ea602e53d5 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62x-lp-sk.dts @@ -0,0 +1,227 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AM62x LP SK: https://www.ti.com/tool/SK-AM62-LP + * + * Copyright (C) 2021-2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; + +#include "k3-am62x-sk-common.dtsi" + +/ { + compatible = "ti,am62x-lp-sk", "ti,am625"; + model = "Texas Instruments AM62x LP SK"; + + vmain_pd: regulator-0 { + /* TPS65988 PD CONTROLLER OUTPUT */ + compatible = "regulator-fixed"; + regulator-name = "vmain_pd"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + regulator-boot-on; + }; + + vcc_5v0: regulator-1 { + /* Output of TPS630702RNMR */ + compatible = "regulator-fixed"; + regulator-name = "vcc_5v0"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&vmain_pd>; + regulator-always-on; + regulator-boot-on; + }; + + vcc_3v3_sys: regulator-2 { + /* output of LM61460-Q1 */ + compatible = "regulator-fixed"; + regulator-name = "vcc_3v3_sys"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vmain_pd>; + regulator-always-on; + regulator-boot-on; + }; + + vdd_mmc1: regulator-3 { + /* TPS22918DBVR */ + compatible = "regulator-fixed"; + regulator-name = "vdd_mmc1"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + vin-supply = <&vcc_3v3_sys>; + gpio = <&exp1 3 GPIO_ACTIVE_HIGH>; + }; + + vddshv_sdio: regulator-4 { + compatible = "regulator-gpio"; + regulator-name = "vddshv_sdio"; + pinctrl-names = "default"; + pinctrl-0 = <&vddshv_sdio_pins_default>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + vin-supply = <&ldo1_reg>; + gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; + states = <1800000 0x0>, + <3300000 0x1>; + }; +}; + +&main_pmx0 { + vddshv_sdio_pins_default: vddshv-sdio-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */ + >; + }; + + main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x01d4, PIN_INPUT, 7) /* (C13) UART0_RTSn.GPIO1_23 */ + >; + }; + + pmic_irq_pins_default: pmic-irq-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x01f4, PIN_INPUT, 0) /* (B16) EXTINTn */ + >; + }; +}; + +&main_i2c1 { + exp1: gpio@22 { + compatible = "ti,tca6424"; + reg = <0x22>; + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST", + "PRU_DETECT", "MMC1_SD_EN", + "VPP_LDO_EN", "EXP_PS_3V3_En", + "EXP_PS_5V0_En", "EXP_HAT_DETECT", + "GPIO_AUD_RSTn", "GPIO_eMMC_RSTn", + "UART1_FET_BUF_EN", "BT_UART_WAKE_SOC", + "GPIO_HDMI_RSTn", "CSI_GPIO0", + "CSI_GPIO1", "GPIO_OLDI_INT", + "HDMI_INTn", "TEST_GPIO2", + "MCASP1_FET_EN", "MCASP1_BUF_BT_EN", + "MCASP1_FET_SEL", "UART1_FET_SEL", + "", "IO_EXP_TEST_LED"; + + interrupt-parent = <&main_gpio1>; + interrupts = <23 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <2>; + + pinctrl-names = "default"; + pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>; + }; + + exp2: gpio@23 { + compatible = "ti,tca6424"; + reg = <0x23>; + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "", "", + "", "", + "", "", + "", "", + "WL_LT_EN", "CSI_RSTz", + "", "", + "", "", + "", "", + "SPI0_FET_SEL", "SPI0_FET_OE", + "GPIO_OLDI_RSTn", "PRU_3V3_EN", + "", "", + "CSI_VLDO_SEL", "SOC_WLAN_SDIO_RST"; + }; +}; + +&sdhci1 { + vmmc-supply = <&vdd_mmc1>; + vqmmc-supply = <&vddshv_sdio>; +}; + +&cpsw_port2 { + status = "disabled"; +}; + +&main_i2c0 { + tps65219: pmic@30 { + compatible = "ti,tps65219"; + reg = <0x30>; + buck1-supply = <&vcc_3v3_sys>; + buck2-supply = <&vcc_3v3_sys>; + buck3-supply = <&vcc_3v3_sys>; + ldo1-supply = <&vcc_3v3_sys>; + ldo2-supply = <&buck2_reg>; + ldo3-supply = <&vcc_3v3_sys>; + ldo4-supply = <&vcc_3v3_sys>; + + pinctrl-names = "default"; + pinctrl-0 = <&pmic_irq_pins_default>; + + interrupt-parent = <&gic500>; + interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>; + ti,power-button; + + regulators { + buck1_reg: buck1 { + regulator-name = "VDD_CORE"; + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <750000>; + regulator-boot-on; + regulator-always-on; + }; + + buck2_reg: buck2 { + regulator-name = "VCC1V8_SYS"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + regulator-always-on; + }; + + buck3_reg: buck3 { + regulator-name = "VDD_LPDDR4"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo1_reg: ldo1 { + regulator-name = "VDDSHV_SDIO"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo2_reg: ldo2 { + regulator-name = "VDDAR_CORE"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <850000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo3_reg: ldo3 { + regulator-name = "VDDA_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo4_reg: ldo4 { + regulator-name = "VDD_1V2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + regulator-always-on; + }; + }; + }; +}; -- 2.40.0
