arch: arm64: dts: Add support for AM69 Starter Kit

AM69 Starter Kit is a single board designed for TI AM69 SOC that
provides advanced system integration in automotive ADAS applications,
autonomous mobile robot and edge AI applications. The SOC comprises
of Cortex-A72s in dual clusters, lockstep capable dual Cortex-R5F MCUs,
Vision Processing Accelerators (VPAC) with Image Signal Processor (ISP)
and multiple vision assist accelerators, Depth and Motion Processing
Accelerators (DMPAC), Deep-learning Matrix Multiply Accelerator(MMA)
and C7x floating point vector DSP

AM69 SK supports the following interfaces:
       * 32 GB LPDDR4 RAM
       * x1 Gigabit Ethernet interface
       * x3 USB 3.0 Type-A ports
       * x1 USB 3.0 Type-C port
       * x1 UHS-1 capable micro-SD card slot
       * x4 MCAN instances
       * 32 GB eMMC Flash
       * 512 Mbit OSPI flash
       * x2 Display connectors
       * x1 PCIe M.2 M Key
       * x1 PCIe M.2 E Key
       * x1 4L PCIe Card Slot
       * x3 CSI2 Camera interface
       * 40-pin Raspberry Pi header

Add initial support for the AM69 SK board.

Design Files: https://www.ti.com/lit/zip/SPRR466
TRM: https://www.ti.com/lit/zip/spruj52

Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20230119132958.124435-3-sabiya.d@ti.com

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 0ac8978..74c71d2 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -25,6 +25,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb
 
 dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
 
+dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
 
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
new file mode 100644 (file)
index 0000000..bc49ba5
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Design Files: https://www.ti.com/lit/zip/SPRR466
+ * TRM: https://www.ti.com/lit/zip/spruj52
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-j784s4.dtsi"
+
+/ {
+       compatible = "ti,am69-sk", "ti,j784s4";
+       model = "Texas Instruments AM69 SK";
+
+       chosen {
+               stdout-path = "serial2:115200n8";
+       };
+
+       aliases {
+               serial2 = &main_uart8;
+               mmc1 = &main_sdhci1;
+               i2c0 = &main_i2c0;
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               /* 32G RAM */
+               reg = <0x00 0x80000000 0x00 0x80000000>,
+                     <0x08 0x80000000 0x07 0x80000000>;
+       };
+
+       reserved_memory: reserved-memory {
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges;
+
+               secure_ddr: optee@9e800000 {
+                       reg = <0x00 0x9e800000 0x00 0x01800000>;
+                       no-map;
+               };
+       };
+
+       vusb_main: regulator-vusb-main5v0 {
+               /* USB MAIN INPUT 5V DC */
+               compatible = "regulator-fixed";
+               regulator-name = "vusb-main5v0";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+
+       vsys_5v0: regulator-vsys5v0 {
+               /* Output of LM61460 */
+               compatible = "regulator-fixed";
+               regulator-name = "vsys_5v0";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&vusb_main>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+
+       vsys_3v3: regulator-vsys3v3 {
+               /* Output of LM5143 */
+               compatible = "regulator-fixed";
+               regulator-name = "vsys_3v3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vusb_main>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+
+       vdd_mmc1: regulator-sd {
+               /* Output of TPS22918 */
+               compatible = "regulator-fixed";
+               regulator-name = "vdd_mmc1";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+               enable-active-high;
+               vin-supply = <&vsys_3v3>;
+               gpio = <&exp1 2 GPIO_ACTIVE_HIGH>;
+       };
+
+       vdd_sd_dv: regulator-tlv71033 {
+               /* Output of TLV71033 */
+               compatible = "regulator-gpio";
+               regulator-name = "tlv71033";
+               pinctrl-names = "default";
+               pinctrl-0 = <&vdd_sd_dv_pins_default>;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+               vin-supply = <&vsys_5v0>;
+               gpios = <&main_gpio0 49 GPIO_ACTIVE_HIGH>;
+               states = <1800000 0x0>,
+                        <3300000 0x1>;
+       };
+};
+
+&main_pmx0 {
+       main_uart8_pins_default: main-uart8-pins-default {
+               pinctrl-single,pins = <
+                       J784S4_IOPAD(0x0d0, PIN_INPUT, 11) /* (AP38) SPI0_CS1.UART8_RXD */
+                       J784S4_IOPAD(0x0d4, PIN_OUTPUT, 11) /* (AN38) SPI0_CLK.UART8_TXD */
+               >;
+       };
+
+       main_i2c0_pins_default: main-i2c0-pins-default {
+               pinctrl-single,pins = <
+                       J784S4_IOPAD(0x0e0, PIN_INPUT_PULLUP, 0) /* (AN36) I2C0_SCL */
+                       J784S4_IOPAD(0x0e4, PIN_INPUT_PULLUP, 0) /* (AP37) I2C0_SDA */
+               >;
+       };
+
+       main_mmc1_pins_default: main-mmc1-pins-default {
+               pinctrl-single,pins = <
+                       J784S4_IOPAD(0x104, PIN_INPUT, 0) /* (AB38) MMC1_CLK */
+                       J784S4_IOPAD(0x108, PIN_INPUT, 0) /* (AB36) MMC1_CMD */
+                       J784S4_IOPAD(0x100, PIN_INPUT, 0) /* (No Pin) MMC1_CLKLB */
+                       J784S4_IOPAD(0x0fc, PIN_INPUT, 0) /* (AA33) MMC1_DAT0 */
+                       J784S4_IOPAD(0x0f8, PIN_INPUT, 0) /* (AB34) MMC1_DAT1 */
+                       J784S4_IOPAD(0x0f4, PIN_INPUT, 0) /* (AA32) MMC1_DAT2 */
+                       J784S4_IOPAD(0x0f0, PIN_INPUT, 0) /* (AC38) MMC1_DAT3 */
+                       J784S4_IOPAD(0x0e8, PIN_INPUT, 8) /* (AR38) TIMER_IO0.MMC1_SDCD */
+               >;
+       };
+
+       vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
+               pinctrl-single,pins = <
+                       J784S4_IOPAD(0x0C4, PIN_INPUT, 7) /* (AD36) ECAP0_IN_APWM_OUT.GPIO0_49 */
+               >;
+       };
+};
+
+&main_uart8 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_uart8_pins_default>;
+};
+
+&main_i2c0 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_i2c0_pins_default>;
+       clock-frequency = <400000>;
+
+       exp1: gpio@21 {
+               compatible = "ti,tca6416";
+               reg = <0x21>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               gpio-line-names = "BOARDID_EEPROM_WP", "CAN_STB", "GPIO_uSD_PWR_EN",
+                               "IO_EXP_MCU_RGMII_RST#", "IO_EXP_PCIe0_4L_PERST#",
+                               "IO_EXP_PCIe1_M.2_RTSz", "IO_EXP_PCIe3_M.2_RTSz",
+                               "PM_INA_BUS_EN", "ENET1_EXP_PWRDN", "EXP1_ENET_RSTz",
+                               "ENET1_I2CMUX_SEL", "PCIe0_CLKREQ#", "PCIe1_M.2_CLKREQ#",
+                               "PCIe3_M2_CLKREQ#", "PCIe0_PRSNT2#_1", "PCIe0_PRSNT2#_2";
+       };
+};
+
+&main_sdhci1 {
+       /* SD card */
+       status = "okay";
+       pinctrl-0 = <&main_mmc1_pins_default>;
+       pinctrl-names = "default";
+       disable-wp;
+       vmmc-supply = <&vdd_mmc1>;
+       vqmmc-supply = <&vdd_sd_dv>;
+};
+
+&main_gpio0 {
+       status = "okay";
+};