[PATCH v2 3/3] arm64: dts: ti: Add support for AM62D2-EVM
Bryan Brattlof
bb at ti.com
Mon May 5 05:12:11 PDT 2025
On May 5, 2025 thus sayeth Paresh Bhagat:
> Hi Bryan,
>
>
> On 03/05/25 01:37, Bryan Brattlof wrote:
> > On May 2, 2025 thus sayeth Paresh Bhagat:
> > > AM62D-EVM evaluation module (EVM) is a low-cost expandable platform board
> > > designed for TI’s AM62D2 SoC. It supports the following interfaces:
> > >
> > > * 4 GB LPDDR4 RAM
> > > * x2 Gigabit Ethernet expansion connectors
> > > * x4 3.5mm TRS Audio Jack Line In
> > > * x4 3.5mm TRS Audio Jack Line Out
> > > * x2 Audio expansion connectors
> > > * x1 Type-A USB 2.0, x1 Type-C dual-role device (DRD) USB 2.0
> > > * x1 UHS-1 capable µSD card slot
> > > * 32 GB eMMC Flash
> > > * 512 Mb OSPI NOR flash
> > > * x4 UARTs via USB 2.0-B
> > > * XDS110 for onboard JTAG debug using USB
> > > * Temperature sensors, user push buttons and LEDs
> > >
> > > Add basic support for AM62D2-EVM.
> > >
> > > Schematics Link - https://www.ti.com/lit/zip/sprcal5
> > >
> > > Signed-off-by: Paresh Bhagat <p-bhagat at ti.com>
> > > ---
> > > arch/arm64/boot/dts/ti/Makefile | 3 +
> > > arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 445 +++++++++++++++++++++++
> > > 2 files changed, 448 insertions(+)
> > > create mode 100644 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> > >
> > > diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> > > index a48e7608de8b..1971f30879c9 100644
> > > --- a/arch/arm64/boot/dts/ti/Makefile
> > > +++ b/arch/arm64/boot/dts/ti/Makefile
> > > @@ -33,6 +33,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62-pocketbeagle2.dtb
> > > dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
> > > dtb-$(CONFIG_ARCH_K3) += k3-am62a7-phyboard-lyra-rdk.dtb
> > > +# Boards with AM62Dx SoC
> > > +dtb-$(CONFIG_ARCH_K3) += k3-am62d2-evm.dtb
> > > +
> > > # Boards with AM62Px SoC
> > > dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
> > > diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> > > new file mode 100644
> > > index 000000000000..03c13b065143
> > > --- /dev/null
> > > +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> > > @@ -0,0 +1,445 @@
> > > +// SPDX-License-Identifier: GPL-2.0-only OR MIT
> > > +/*
> > > + * AM62D2 EVM: https://www.ti.com/lit/zip/sprcal5
> > > + *
> > > + * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
> > > + */
> > > +
> > > +/dts-v1/;
> > > +
> > > +#include <dt-bindings/leds/common.h>
> > > +#include <dt-bindings/gpio/gpio.h>
> > > +#include <dt-bindings/net/ti-dp83867.h>
> > > +#include "k3-am62a7.dtsi"
> > > +
> > > +/ {
> > > + compatible = "ti,am62d2-evm", "ti,am62d2";
> > > + model = "Texas Instruments AM62D2 EVM";
> > > +
> > > + aliases {
> > > + serial0 = &wkup_uart0;
> > > + serial1 = &mcu_uart0;
> > > + serial2 = &main_uart0;
> > > + mmc1 = &sdhci1;
> > > + rtc0 = &wkup_rtc0;
> > > + };
> > > +
> > > + chosen {
> > > + stdout-path = "serial2:115200n8";
> > > + };
> > > +
> > > + memory at 80000000 {
> > > + device_type = "memory";
> > > + /* 4G RAM */
> > > + reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
> > > + <0x00000008 0x80000000 0x00000000 0x80000000>;
> > > + };
> > > +
> > > + reserved-memory {
> > > + #address-cells = <2>;
> > > + #size-cells = <2>;
> > > + ranges;
> > > +
> > > + /* global cma region */
> > > + linux,cma {
> > > + compatible = "shared-dma-pool";
> > > + reusable;
> > > + size = <0x00 0x2000000>;
> > > + alloc-ranges = <0x00 0xc0000000 0x00 0x2000000>;
> > > + linux,cma-default;
> > > + };
> > > +
> > > + c7x_0_dma_memory_region: c7x-dma-memory at 99800000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x99800000 0x00 0x100000>;
> > > + no-map;
> > > + };
> > > +
> > > + c7x_0_memory_region: c7x-memory at 99900000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x99900000 0x00 0xf00000>;
> > > + no-map;
> > > + };
> > > +
> > > + mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory at 9b800000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x9b800000 0x00 0x100000>;
> > > + no-map;
> > > + };
> > > +
> > > + mcu_r5fss0_core0_memory_region: r5f-dma-memory at 9b900000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x9b900000 0x00 0xf00000>;
> > > + no-map;
> > > + };
> > > +
> > > + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory at 9c800000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x9c800000 0x00 0x100000>;
> > > + no-map;
> > > + };
> > > +
> > > + wkup_r5fss0_core0_memory_region: r5f-dma-memory at 9c900000 {
> > > + compatible = "shared-dma-pool";
> > > + reg = <0x00 0x9c900000 0x00 0xf00000>;
> > > + no-map;
> > > + };
> > > +
> > > + secure_tfa_ddr: tfa at 9e780000 {
> > > + reg = <0x00 0x9e780000 0x00 0x80000>;
> > I don't think this is where TF-A actually is.
> The addresses are same as what is being pushed upstream for AM62a. https://patchew.org/linux/20250415153147.1844076-1-jm@ti.com/20250415153147.1844076-7-jm@ti.com/
> >
According to your boot log it's at 0x80000000. TF-A is position
independent so the bootloaders can load it wherever. Most of these
boards have this carveout defined in the wrong spot.
> > > + alignment = <0x1000>;
> > > + no-map;
> > > + };
> > > +
> > > + secure_ddr: optee at 9e800000 {
> > > + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
> > > + alignment = <0x1000>;
> > > + no-map;
> > > + };
> > > + };
> > > +
> > > + opp-table {
> > > + /* Requires VDD_CORE at 0v85 */
> > > + opp-1400000000 {
> > > + opp-hz = /bits/ 64 <1400000000>;
> > > + opp-supported-hw = <0x01 0x0004>;
> > > + clock-latency-ns = <6000000>;
> > > + };
> > > + };
> > > +
> > > + vout_pd: regulator-1 {
> > > + /* TPS65988 PD CONTROLLER OUTPUT */
> > > + compatible = "regulator-fixed";
> > > + regulator-name = "vout_pd";
> > > + regulator-min-microvolt = <5000000>;
> > > + regulator-max-microvolt = <5000000>;
> > > + regulator-always-on;
> > > + regulator-boot-on;
> > > + };
> > > +
> > > + vmain_pd: load-switch {
> > > + /* Output of TPS22811 */
> > > + compatible = "regulator-fixed";
> > > + regulator-name = "vmain_pd";
> > > + regulator-min-microvolt = <5000000>;
> > > + regulator-max-microvolt = <5000000>;
> > > + vin-supply = <&vout_pd>;
> > > + regulator-always-on;
> > > + regulator-boot-on;
> > > + };
> > > +
> > > + vcc_5v0: regulator-2 {
> > > + /* 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;
> > > + };
> > > +
> > > + 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;
> > > + 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;
> > > + gpios = <&main_gpio1 31 GPIO_ACTIVE_HIGH>;
> > > + states = <1800000 0x0>,
> > > + <3300000 0x1>;
> > > + };
> > > +};
> > > +
> > > +&mcu_pmx0 {
> > > + wkup_uart0_pins_default: wkup-uart0-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_MCU_IOPAD(0x0024, PIN_INPUT, 0) /* (C9) WKUP_UART0_RXD */
> > > + AM62DX_MCU_IOPAD(0x0028, PIN_OUTPUT, 0) /* (E9) WKUP_UART0_TXD */
> > > + AM62DX_MCU_IOPAD(0x002c, PIN_INPUT, 0) /* (C10) WKUP_UART0_CTSn */
> > > + AM62DX_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (C8) WKUP_UART0_RTSn */
> > > + >;
> > > + };
> > > +};
> > > +
> > > +/* WKUP UART0 is used for DM firmware logs */
> > > +&wkup_uart0 {
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&wkup_uart0_pins_default>;
> > > + status = "reserved";
> > > +};
> > > +
> > > +&main_pmx0 {
> > > + main_uart0_pins_default: main-uart0-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x01c8, PIN_INPUT, 0) /* (E14) UART0_RXD */
> > > + AM62DX_IOPAD(0x01cc, PIN_OUTPUT, 0) /* (D15) UART0_TXD */
> > > + >;
> > > + };
> > > +
> > > + main_i2c0_pins_default: main-i2c0-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (D17) I2C0_SCL */
> > > + AM62DX_IOPAD(0x01e4, PIN_INPUT_PULLUP, 0) /* (E16) I2C0_SDA */
> > > + >;
> > > + };
> > > +
> > > + main_i2c1_pins_default: main-i2c1-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x01e8, PIN_INPUT_PULLUP, 0) /* (C17) I2C1_SCL */
> > > + AM62DX_IOPAD(0x01ec, PIN_INPUT_PULLUP, 0) /* (E17) I2C1_SDA */
> > > + >;
> > > + };
> > > +
> > > + main_i2c2_pins_default: main-i2c2-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x00b0, PIN_INPUT_PULLUP, 1) /* (M22) GPMC0_CSn2.I2C2_SCL */
> > > + AM62DX_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (M20) GPMC0_CSn3.I2C2_SDA */
> > > + >;
> > > + };
> > > +
> > > + main_mmc1_pins_default: main-mmc1-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x023c, PIN_INPUT, 0) /* (C21) MMC1_CMD */
> > > + AM62DX_IOPAD(0x0234, PIN_OUTPUT, 0) /* (E22) MMC1_CLK */
> > > + AM62DX_IOPAD(0x0230, PIN_INPUT, 0) /* (B22) MMC1_DAT0 */
> > > + AM62DX_IOPAD(0x022c, PIN_INPUT_PULLUP, 0) /* (D21) MMC1_DAT1 */
> > > + AM62DX_IOPAD(0x0228, PIN_INPUT_PULLUP, 0) /* (C22) MMC1_DAT2 */
> > > + AM62DX_IOPAD(0x0224, PIN_INPUT_PULLUP, 0) /* (D22) MMC1_DAT3 */
> > > + AM62DX_IOPAD(0x0240, PIN_INPUT, 0) /* (E18) MMC1_SDCD */
> > > + AM62DX_IOPAD(0x0244, PIN_INPUT, 0) /* (D18) MMC1_SDWP */
> > > + >;
> > > + };
> > > +
> > > + main_mdio1_pins_default: main-mdio1-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x160, PIN_OUTPUT, 0) /* (V12) MDIO0_MDC */
> > > + AM62DX_IOPAD(0x15c, PIN_INPUT, 0) /* (V13) MDIO0_MDIO */
> > > + >;
> > > + };
> > > +
> > > + main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x01d4, PIN_INPUT, 7) /* (C15) UART0_RTSn.GPIO1_23 */
> > > + >;
> > > + };
> > > +
> > > + vddshv_sdio_pins_default: vddshv-sdio-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_IOPAD(0x1F4, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO1_31 */
> > > + >;
> > > + };
> > > +};
> > > +
> > > +&mcu_pmx0 {
> > > + status = "okay";
> > > +
> > > + pmic_irq_pins_default: pmic-irq-default-pins {
> > > + pinctrl-single,pins = <
> > > + AM62DX_MCU_IOPAD(0x000, PIN_INPUT, 7) /* (E11) MCU_GPIO0_0 */
> > > + >;
> > > + };
> > > +};
> > > +
> > > +&mcu_gpio0 {
> > > + status = "okay";
> > > +};
> > > +
> > > +&main_i2c0 {
> > > + status = "okay";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&main_i2c0_pins_default>;
> > > + clock-frequency = <400000>;
> > > +
> > > + typec_pd0: usb-power-controller at 3f {
> > > + compatible = "ti,tps6598x";
> > > + reg = <0x3f>;
> > > +
> > > + connector {
> > > + compatible = "usb-c-connector";
> > > + label = "USB-C";
> > > + self-powered;
> > > + data-role = "dual";
> > > + power-role = "sink";
> > > + port {
> > > + usb_con_hs: endpoint {
> > > + remote-endpoint = <&usb0_hs_ep>;
> > > + };
> > > + };
> > > + };
> > > + };
> > > +
> > > + exp1: gpio at 22 {
> > > + compatible = "ti,tca6424";
> > > + reg = <0x22>;
> > > + gpio-controller;
> > > + #gpio-cells = <2>;
> > > + 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>;
> > > +
> > > + gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
> > > + "MMC1_SD_EN", "VPP_EN",
> > > + "GPIO_DIX_RST", "IO_EXP_OPT_EN",
> > > + "DIX_INT", "GPIO_eMMC_RSTn",
> > > + "CPLD2_DONE", "CPLD2_INTN",
> > > + "CPLD1_DONE", "CPLD1_INTN",
> > > + "USB_TYPEA_OC_INDICATION", "PCM1_INT",
> > > + "PCM2_INT", "GPIO_PCM1_RST",
> > > + "TEST_GPIO2", "GPIO_PCM2_RST",
> > > + "IO_MCAN0_STB", "IO_MCAN1_STB",
> > > + "PD_I2C_IRQ", "IO_EXP_TEST_LED";
> > > + };
> > > +
> > > + exp2: gpio at 23 {
> > > + compatible = "ti,tca6424";
> > > + reg = <0x23>;
> > > + gpio-controller;
> > > + #gpio-cells = <2>;
> > > +
> > > + gpio-line-names = "", "DAC_LAT_CTRL",
> > > + "CPLD1_JTAGENB", "CPLD1_PROGRAMN",
> > > + "CPLD2_JTAGENB", "CPLD2_PROGRAMN",
> > > + "", "",
> > > + "", "",
> > > + "", "",
> > > + "", "",
> > > + "", "",
> > > + "", "",
> > > + "SoC_I2C0_SCL", "SoC_I2C0_SDA";
> > > + };
> > > +};
> > > +
> > > +&main_i2c1 {
> > > + status = "okay";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&main_i2c1_pins_default>;
> > > + clock-frequency = <100000>;
> > > + bootph-all;
> > I'm not seeing other any other boot phase flags? What are you using to
> > boot this board?
> >
> > ~Bryan
> It is a mistake and bootph-all is not required for this node. I will remove
> it in the next version.
I would go the other way around with this. bootph-* is the correct
property to use to describe which nodes need to exist to boot the board
pre DDR init. There is no reason to leave them out.
> >
> > > +};
> > > +
> > > +&main_i2c2 {
> > > + status = "okay";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&main_i2c2_pins_default>;
> > > + clock-frequency = <400000>;
> > > +};
> > > +
> > > +&sdhci1 {
> > > + /* SD/MMC */
> > > + status = "okay";
> > > + vmmc-supply = <&vdd_mmc1>;
> > > + vqmmc-supply = <&vddshv_sdio>;
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&main_mmc1_pins_default>;
> > > + disable-wp;
> > > +};
> > > +
> > > +&main_gpio0 {
> > > + status = "okay";
> > > +};
> > > +
> > > +&main_gpio1 {
> > > + status = "okay";
> > > +};
> > > +
> > > +&main_gpio_intr {
> > > + status = "okay";
> > > +};
> > > +
> > > +&main_uart0 {
> > > + status = "okay";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&main_uart0_pins_default>;
> > > +};
> > > +
> > > +&usb0 {
> > > + usb-role-switch;
> > > +
> > > + port {
> > > + usb0_hs_ep: endpoint {
> > > + remote-endpoint = <&usb_con_hs>;
> > > + };
> > > + };
> > > +};
> > > +
> > > +&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_c7x_0: mbox-c7x-0 {
> > > + ti,mbox-rx = <0 0 0>;
> > > + ti,mbox-tx = <1 0 0>;
> > > + };
> > > +};
> > > +
> > > +&mailbox0_cluster2 {
> > > + status = "okay";
> > > +
> > > + mbox_mcu_r5_0: mbox-mcu-r5-0 {
> > > + ti,mbox-rx = <0 0 0>;
> > > + ti,mbox-tx = <1 0 0>;
> > > + };
> > > +};
> > > +
> > > +&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_r5fss0 {
> > > + status = "okay";
> > > +};
> > > +
> > > +&mcu_r5fss0_core0 {
> > > + mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>;
> > > + memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
> > > + <&mcu_r5fss0_core0_memory_region>;
> > > +};
> > > +
> > > +&c7x_0 {
> > > + status = "okay";
> > > +
> > > + mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>;
> > > + memory-region = <&c7x_0_dma_memory_region>,
> > > + <&c7x_0_memory_region>;
> > > +};
> > > +
> > > +/* main_rti4 is used by C7x DSP */
> > > +&main_rti4 {
> > > + status = "reserved";
> > > +};
> > > +
> > > +/* main_timer2 is used by C7x DSP */
> > > +&main_timer2 {
> > > + status = "reserved";
> > > +};
> > > --
> > > 2.34.1
> > >
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