From 571562e76458682231453a561d5df0c8e91c461d Mon Sep 17 00:00:00 2001 From: Stefano Radaelli Date: Tue, 9 Sep 2025 23:37:40 +0200 Subject: [PATCH] arm64: dts: ti: Add support for Variscite VAR-SOM-AM62P Add device tree support for the Variscite VAR-SOM-AM62P system on module. This SOM is designed to be used with various carrier boards. The module includes: - AM62P Sitara MPU processor - Up to 8GB of DDR4-3733 memory - eMMC storage memory - PS6522430 chip as a Power Management Integrated circuit (PMIC) - Integrated 10/100/1000 Mbps Ethernet Transceiver Analog Devices ADIN1300 - Resistive touch panel interface controller TI TSC2046 - I2C interfaces Only SOM-specific peripherals are enabled by default. Carrier board specific interfaces are left disabled to be enabled in the respective carrier board device trees. Link: https://www.variscite.it/product/system-on-module-som/cortex-a53-krait/var-som-am62p-ti-sitara-am62px/ Signed-off-by: Stefano Radaelli Reviewed-by: Judith Mendez Link: https://patch.msgid.link/20250909213749.28098-3-stefano.radaelli21@gmail.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62p5-var-som.dtsi | 387 ++++++++++++++++++ 1 file changed, 387 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-var-som.dtsi diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-var-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62p5-var-som.dtsi new file mode 100644 index 0000000000000..edaa4f99295dc --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62p5-var-som.dtsi @@ -0,0 +1,387 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Common dtsi for Variscite VAR-SOM-AM62P + * + * Link: https://www.variscite.com/product/system-on-module-som/cortex-a53-krait/var-som-am62p-ti-sitara-am62px/ + * + * Copyright (C) 2025 Variscite Ltd. - https://www.variscite.com/ + * + */ + +/dts-v1/; + +#include +#include +#include +#include +#include +#include "k3-am62p5.dtsi" + +/ { + compatible = "variscite,var-som-am62p", "ti,am62p5"; + + wifi_pwrseq: wifi-pwrseq { + compatible = "mmc-pwrseq-simple"; + post-power-on-delay-ms = <100>; + power-off-delay-us = <10000>; + reset-gpios = <&main_gpio0 54 GPIO_ACTIVE_LOW>, /* WIFI_PWR_EN */ + <&main_gpio0 59 GPIO_ACTIVE_LOW>; /* WIFI_EN */ + }; + + mmc_pwrseq: mmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_mmc_pwrseq>; + reset-gpios = <&main_gpio0 49 GPIO_ACTIVE_LOW>; + }; + + memory@80000000 { + /* 8G RAM */ + reg = <0x00000000 0x80000000 0x00000000 0x80000000>, + <0x00000008 0x80000000 0x00000001 0x80000000>; + device_type = "memory"; + bootph-pre-ram; + }; + + opp-table { + /* Add 1.4GHz OPP for am62p5-sk board. Requires VDD_CORE at 0v85 */ + opp-1400000000 { + opp-hz = /bits/ 64 <1400000000>; + opp-supported-hw = <0x01 0x0004>; + clock-latency-ns = <6000000>; + }; + }; + + reserved_memory: reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + rtos_ipc_memory_region: rtos-ipc-memory@9b500000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b500000 0x00 0x00300000>; + no-map; + }; + + mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b800000 0x00 0x00100000>; + no-map; + }; + + mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b900000 0x00 0x00f00000>; + no-map; + }; + + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9c800000 0x00 0x00100000>; + no-map; + }; + + wkup_r5fss0_core0_memory_region: r5f-memory@9c900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9c900000 0x00 0x01e00000>; + no-map; + }; + + secure_tfa_ddr: tfa@9e780000 { + reg = <0x00 0x9e780000 0x00 0x80000>; + no-map; + }; + + secure_ddr: optee@9e800000 { + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */ + no-map; + }; + }; + + reg_3v3: regulator-3v3 { + compatible = "regulator-fixed"; + regulator-name = "On-module +V3.3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + + reg_1v8: regulator-1v8 { + compatible = "regulator-fixed"; + regulator-name = "On-module +V1.8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <®_3v3>; + regulator-always-on; + regulator-boot-on; + }; + + reg_3v3_phy: regulator-3v3-phy { + compatible = "regulator-fixed"; + regulator-name = "On-module +V3.3_PHY"; + gpios = <&main_gpio0 45 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; +}; + +&cpsw3g { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_rgmii1>; +}; + +&cpsw3g_mdio { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_mdio1>; + status = "okay"; + + cpsw3g_phy0: ethernet-phy@4 { + compatible = "ethernet-phy-id0283.bc30"; + reg = <4>; + reset-gpios = <&main_gpio0 46 GPIO_ACTIVE_LOW>; + reset-assert-us = <10000>; + reset-deassert-us = <100000>; + }; +}; + +&cpsw_port1 { + /* + * The required RGMII TX and RX 2ns delays are implemented directly + * in hardware via passive delay elements on the SOM PCB. + * No delay configuration is needed in software via PHY driver. + */ + phy-mode = "rgmii"; + phy-handle = <&cpsw3g_phy0>; + status = "okay"; +}; + +&main_i2c2 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c2>; + clock-frequency = <400000>; + status = "okay"; +}; + +&main_i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3>; + clock-frequency = <400000>; + status = "okay"; +}; + +&main_pmx0 { + pinctrl_mmc_pwrseq: main-emmc-pwrseq-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00c8, PIN_OUTPUT, 7) /* (AB23) VOUT0_DATA4.GPIO0_49 */ + >; + }; + + pinctrl_i2c2: main-i2c2-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00b0, PIN_INPUT_PULLUP, 1) /* (T22) GPMC0_CSn2.I2C2_SCL */ + AM62PX_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (U25) GPMC0_CSn3.I2C2_SDA */ + >; + }; + + pinctrl_i2c3: main-i2c3-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x01d0, PIN_INPUT_PULLUP, 2) /* (A23) UART0_CTSn.I2C3_SCL */ + AM62PX_IOPAD(0x01d4, PIN_INPUT_PULLUP, 2) /* (C22) UART0_RTSn.I2C3_SDA */ + >; + }; + + pinctrl_mdio1: main-mdio1-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x0160, PIN_OUTPUT, 0) /* (F17) MDIO0_MDC */ + AM62PX_IOPAD(0x015c, PIN_INPUT, 0) /* (F16) MDIO0_MDIO */ + >; + }; + + pinctrl_mmc2: main-mmc2-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x0120, PIN_INPUT_PULLUP, 0) /* (K24) MMC2_CMD */ + AM62PX_IOPAD(0x0118, PIN_INPUT_PULLDOWN, 0) /* (K21) MMC2_CLK */ + AM62PX_IOPAD(0x011c, PIN_INPUT_PULLUP, 0) /* () MMC2_CLKLB */ + AM62PX_IOPAD(0x0114, PIN_INPUT_PULLUP, 0) /* (K23) MMC2_DAT0 */ + AM62PX_IOPAD(0x0110, PIN_INPUT_PULLUP, 0) /* (K22) MMC2_DAT1 */ + AM62PX_IOPAD(0x010c, PIN_INPUT_PULLUP, 0) /* (L20) MMC2_DAT2 */ + AM62PX_IOPAD(0x0108, PIN_INPUT_PULLUP, 0) /* (L21) MMC2_DAT3 */ + >; + }; + + pinctrl_rgmii1: main-rgmii1-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x014c, PIN_INPUT, 0) /* (B15) RGMII1_RD0 */ + AM62PX_IOPAD(0x0150, PIN_INPUT, 0) /* (B16) RGMII1_RD1 */ + AM62PX_IOPAD(0x0154, PIN_INPUT, 0) /* (A14) RGMII1_RD2 */ + AM62PX_IOPAD(0x0158, PIN_INPUT, 0) /* (B14) RGMII1_RD3 */ + AM62PX_IOPAD(0x0148, PIN_INPUT, 0) /* (A16) RGMII1_RXC */ + AM62PX_IOPAD(0x0144, PIN_INPUT, 0) /* (A15) RGMII1_RX_CTL */ + AM62PX_IOPAD(0x0134, PIN_INPUT, 0) /* (A18) RGMII1_TD0 */ + AM62PX_IOPAD(0x0138, PIN_INPUT, 0) /* (C17) RGMII1_TD1 */ + AM62PX_IOPAD(0x013c, PIN_INPUT, 0) /* (A17) RGMII1_TD2 */ + AM62PX_IOPAD(0x0140, PIN_INPUT, 0) /* (C16) RGMII1_TD3 */ + AM62PX_IOPAD(0x0130, PIN_INPUT, 0) /* (B17) RGMII1_TXC */ + AM62PX_IOPAD(0x012c, PIN_INPUT, 0) /* (B18) RGMII1_TX_CTL */ + >; + bootph-all; + }; + + pinctrl_spi0: main-spi0-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x01bc, PIN_OUTPUT, 0) /* (B21) SPI0_CLK */ + AM62PX_IOPAD(0x01b4, PIN_OUTPUT, 0) /* (D20) SPI0_CS0 */ + AM62PX_IOPAD(0x01c0, PIN_OUTPUT, 0) /* (B20) SPI0_D0 */ + AM62PX_IOPAD(0x01c4, PIN_INPUT, 0) /* (C21) SPI0_D1 */ + >; + }; + + pinctrl_uart5: main-uart5-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00ec, PIN_INPUT, 4) /* (AC21) VOUT0_DATA13.UART5_CTSn */ + AM62PX_IOPAD(0x00e8, PIN_OUTPUT, 4) /* (AD21) VOUT0_DATA12.UART5_RTSn */ + AM62PX_IOPAD(0x00d0, PIN_INPUT, 4) /* (AC23) VOUT0_DATA6.UART5_RXD */ + AM62PX_IOPAD(0x00d4, PIN_OUTPUT, 4) /* (AE23) VOUT0_DATA7.UART5_TXD */ + >; + }; + + pinctrl_bt: main-btgrp-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00f4, PIN_OUTPUT, 7) /* (Y20) VOUT0_DATA15.GPIO0_60 (BT_EN) */ + >; + }; + + pinctrl_restouch: main-restouch-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00c4, PIN_INPUT_PULLUP, 7) /* (Y23) VOUT0_DATA3.GPIO0_48 */ + >; + }; + + pinctrl_wifi: main-wifi-default-pins { + pinctrl-single,pins = < + AM62PX_IOPAD(0x00dc, PIN_OUTPUT, 7) /* (AC22) VOUT0_DATA9.GPIO0_54 - WIFI_PWR_EN - */ + AM62PX_IOPAD(0x00f0, PIN_OUTPUT, 7) /* (AA20) VOUT0_DATA14.GPIO0_59 - WIFI_EN - */ + >; + }; +}; + +&mcu_pmx0 { + pinctrl_wkup_clkout0: wkup-clkout0-default-pins { + pinctrl-single,pins = < + AM62PX_MCU_IOPAD(0x0084, PIN_OUTPUT, 0) /* (F13) WKUP_CLKOUT0 */ + >; + }; +}; + +&main_spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + ti,pindir-d0-out-d1-in; + status = "okay"; +}; + +&main_uart5 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart5>, <&pinctrl_bt>; + uart-has-rtscts; + status = "okay"; + + bluetooth { + compatible = "nxp,88w8987-bt"; + }; +}; + +&sdhci0 { + /* On-module eMMC */ + ti,driver-strength-ohm = <50>; + mmc-pwrseq = <&mmc_pwrseq>; + bootph-all; + status = "okay"; +}; + +&sdhci2 { + /* On-module WiFi */ + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_mmc2>, <&pinctrl_wifi>; + bus-width = <4>; + non-removable; + keep-power-in-suspend; + mmc-pwrseq = <&wifi_pwrseq>; + ti,fails-without-test-cd; + status = "okay"; +}; + +&usbss0 { + ti,vbus-divider; +}; + +&usbss1 { + ti,vbus-divider; +}; + +&mailbox0_cluster0 { + status = "okay"; + + mbox_r5_0: mbox-r5-0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; +}; + +&mailbox0_cluster1 { + status = "okay"; + + mbox_mcu_r5_0: mbox-mcu-r5-0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; +}; + +&mcu_r5fss0 { + status = "okay"; +}; + +&mcu_r5fss0_core0 { + mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>; + memory-region = <&mcu_r5fss0_core0_dma_memory_region>, + <&mcu_r5fss0_core0_memory_region>; +}; + +&wkup_r5fss0 { + status = "okay"; +}; + +&wkup_r5fss0_core0 { + mboxes = <&mailbox0_cluster0 &mbox_r5_0>; + memory-region = <&wkup_r5fss0_core0_dma_memory_region>, + <&wkup_r5fss0_core0_memory_region>; +}; + +/* mcu_gpio0 and mcu_gpio_intr are reserved for mcu firmware usage */ +&mcu_gpio0 { + status = "reserved"; +}; + +&mcu_gpio_intr { + status = "reserved"; +}; + +&wkup_rtc0 { + status = "disabled"; +}; + +&wkup_rti0 { + /* WKUP RTI0 is used by DM firmware */ + status = "reserved"; +}; + +&wkup_uart0 { + /* WKUP UART0 is used by DM firmware */ + status = "reserved"; +}; + +&main_uart1 { + /* Main UART1 is used by TIFS firmware */ + status = "reserved"; +}; -- 2.47.3