Add initial support for AM62D2-EVM

Add initial support for AM62D2-EVM, Kconfig entries for binman, SPL,
base DTS files for u-boot and SPL, HS-SE and HS-FS support and initial
configs with SD-MMC, UART, eMMC and OSPI boot providing a baseline for
further enablement.

Also add labels and targets to AM62A-SK binman to enable AM62D2-EVM
builds to reuse existing binman infrastructure.

Technical Reference Manual - https://www.ti.com/lit/pdf/sprujd4
Schematics Link - https://www.ti.com/lit/zip/sprcal5

Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>

arch/arm/dts/Makefile

@@ -1109,6 +1109,8 @@ dtb-$(CONFIG_SOC_K3_AM62A7) += \
 	k3-am62a7-r5-sk.dtb \
 	k3-am62a7-r5-phycore-som-2gb.dtb
 
+dtb-$(CONFIG_SOC_K3_AM62D2) += k3-am62d2-r5-evm.dtb
+
 dtb-$(CONFIG_SOC_K3_AM62P5) += k3-am62p5-r5-sk.dtb \
 			       k3-am62p5-verdin-r5.dtb \
 			       k3-am62p5-verdin-wifi-dev.dtb

arch/arm/dts/k3-am62a-sk-binman.dtsi

@@ -5,7 +5,7 @@
 
 #include "k3-binman.dtsi"
 
-#ifdef CONFIG_TARGET_AM62A7_R5_EVM
+#if defined(CONFIG_TARGET_AM62A7_R5_EVM) || defined(CONFIG_TARGET_AM62D2_R5_EVM)
 
 &rcfg_yaml_tifs {
 	config = "tifs-rm-cfg.yaml";
@@ -100,7 +100,7 @@
 
 #endif
 
-#ifdef CONFIG_TARGET_AM62A7_A53_EVM
+#if defined(CONFIG_TARGET_AM62A7_A53_EVM) || defined(CONFIG_TARGET_AM62D2_A53_EVM)
 
 #define SPL_AM62A7_SK_DTB "spl/dts/ti/k3-am62a7-sk.dtb"
 #define AM62A7_SK_DTB "u-boot.dtb"
@@ -185,7 +185,7 @@
 					};
 				};
 
-				fdt-0 {
+				ti_spl_fdt_0: fdt-0 {
 					description = "k3-am62a7-sk";
 					type = "flat_dt";
 					arch = "arm";
@@ -205,7 +205,7 @@
 			configurations {
 				default = "conf-0";
 
-				conf-0 {
+				ti_spl_conf_0: conf-0 {
 					description = "k3-am62a7-sk";
 					firmware = "atf";
 					loadables = "tee", "dm", "spl",
@@ -227,7 +227,7 @@
 					description = "U-Boot for AM62Ax Board";
 				};
 
-				fdt-0 {
+				u_boot_fdt_0: fdt-0 {
 					description = "k3-am62a7-sk";
 					type = "flat_dt";
 					arch = "arm";
@@ -248,7 +248,7 @@
 			configurations {
 				default = "conf-0";
 
-				conf-0 {
+				u_boot_conf_0: conf-0 {
 					description = "k3-am62a7-sk";
 					firmware = "uboot";
 					loadables = "uboot";

arch/arm/dts/k3-am62d-evm-binman.dtsi

@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024-2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include "k3-binman.dtsi"
+#include "k3-am62a-sk-binman.dtsi"
+
+#ifdef CONFIG_TARGET_AM62D2_R5_EVM
+
+&bcfg_yaml {
+	config = "board/ti/am62ax/board-cfg.yaml";
+};
+
+&rcfg_yaml {
+	config = "board/ti/am62ax/rm-cfg.yaml";
+};
+
+&scfg_yaml {
+	config = "board/ti/am62ax/sec-cfg.yaml";
+};
+
+&pcfg_yaml {
+	config = "board/ti/am62ax/pm-cfg.yaml";
+};
+
+&bcfg_yaml_tifs {
+	config = "board/ti/am62ax/board-cfg.yaml";
+};
+
+&scfg_yaml_tifs {
+	config = "board/ti/am62ax/sec-cfg.yaml";
+};
+
+&pcfg_yaml_tifs {
+	config = "board/ti/am62ax/pm-cfg.yaml";
+};
+
+&rcfg_yaml_tifs {
+	config = "board/ti/am62ax/tifs-rm-cfg.yaml";
+};
+
+&pcfg_yaml_dm {
+	config = "board/ti/am62ax/pm-cfg.yaml";
+};
+
+&rcfg_yaml_dm {
+	config = "board/ti/am62ax/rm-cfg.yaml";
+};
+
+&bcfg_yaml_sysfw {
+	config = "board/ti/am62ax/board-cfg.yaml";
+};
+
+&scfg_yaml_sysfw {
+	config = "board/ti/am62ax/sec-cfg.yaml";
+};
+
+&pcfg_yaml_sysfw {
+	config = "board/ti/am62ax/pm-cfg.yaml";
+};
+
+&rcfg_yaml_sysfw {
+	config = "board/ti/am62ax/rm-cfg.yaml";
+};
+
+#endif
+
+#ifdef CONFIG_TARGET_AM62D2_A53_EVM
+
+&ti_spl_fdt_0 {
+	description = "k3-am62d2-evm";
+
+	ti-secure {
+		content = <&spl_am62a7_sk_dtb>;
+		keyfile = "custMpk.pem";
+	};
+
+	spl_am62d2_evm_dtb: blob-ext {
+		filename = "spl/dts/ti/k3-am62d2-evm.dtb";
+	};
+};
+
+&ti_spl_conf_0 {
+	description = "k3-am62d2-evm";
+};
+
+&u_boot_fdt_0 {
+	description = "k3-am62d2-evm";
+
+	ti-secure {
+		content = <&am62d2_evm_dtb>;
+		keyfile = "custMpk.pem";
+	};
+	am62d2_evm_dtb: blob-ext {
+		filename = AM62A7_SK_DTB;
+	};
+};
+
+&u_boot_conf_0 {
+	description = "k3-am62d2-evm";
+};
+
+#endif

arch/arm/dts/k3-am62d2-evm-u-boot.dtsi

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common AM62D EVM dts file for SPLs
+ * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include "k3-am62d-evm-binman.dtsi"
+
+/ {
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+};

arch/arm/dts/k3-am62d2-r5-evm.dts

@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AM62D2 EVM dts file for R5 SPL
+ * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include "k3-am62d2-evm.dts"
+#include "k3-am62d-ddr-1866mhz-32bit.dtsi"
+#include "k3-am62a-ddr.dtsi"
+
+#include "k3-am62d2-evm-u-boot.dtsi"
+
+/ {
+	aliases {
+		tick-timer = &main_timer0;
+		remoteproc0 = &sysctrler;
+		remoteproc1 = &a53_0;
+	};
+
+	a53_0: a53@0 {
+		compatible = "ti,am654-rproc";
+		reg = <0x00 0x00a90000 0x00 0x10>;
+		power-domains = <&k3_pds 61 TI_SCI_PD_EXCLUSIVE>,
+				<&k3_pds 135 TI_SCI_PD_EXCLUSIVE>,
+				<&k3_pds 166 TI_SCI_PD_EXCLUSIVE>;
+		resets = <&k3_reset 135 0>;
+		clocks = <&k3_clks 61 0>, <&k3_clks 135 0>;
+		clock-names = "gtc", "core";
+		assigned-clocks = <&k3_clks 61 0>, <&k3_clks 135 0>;
+		assigned-clock-parents = <&k3_clks 61 2>;
+		assigned-clock-rates = <200000000>, <1200000000>;
+		ti,sci = <&dmsc>;
+		ti,sci-proc-id = <32>;
+		ti,sci-host-id = <10>;
+		bootph-pre-ram;
+	};
+
+	dm_tifs: dm-tifs {
+		compatible = "ti,j721e-dm-sci";
+		ti,host-id = <36>;
+		ti,secure-host;
+		mbox-names = "rx", "tx";
+		mboxes= <&secure_proxy_main 22>,
+			<&secure_proxy_main 23>;
+		bootph-pre-ram;
+	};
+};
+
+&dmsc {
+	mboxes= <&secure_proxy_main 0>,
+		<&secure_proxy_main 1>,
+		<&secure_proxy_main 0>;
+	mbox-names = "rx", "tx", "notify";
+	ti,host-id = <35>;
+	ti,secure-host;
+};
+
+&secure_proxy_sa3 {
+	/* Needed for initial handshake with ROM */
+	status = "okay";
+	bootph-pre-ram;
+};
+
+&cbass_main {
+	sysctrler: sysctrler {
+		compatible = "ti,am654-tisci-rproc-r5";
+		mboxes= <&secure_proxy_main 1>,
+			<&secure_proxy_main 0>,
+			<&secure_proxy_sa3 0>;
+		mbox-names = "tx", "rx", "boot_notify";
+		bootph-pre-ram;
+	};
+};
+
+&main_timer0 {
+	/delete-property/ clocks;
+	/delete-property/ clocks-names;
+	/delete-property/ assigned-clocks;
+	/delete-property/ assigned-clock-parents;
+	clock-frequency = <25000000>;
+	bootph-pre-ram;
+};

arch/arm/mach-k3/am62ax/Kconfig

@@ -50,9 +50,30 @@ config TARGET_PHYCORE_AM62AX_R5
 	select BINMAN
 	imply SYS_K3_SPL_ATF
 
+config TARGET_AM62D2_A53_EVM
+	bool "TI K3 based AM62D2 EVM running on A53"
+	select ARM64
+	select BINMAN
+	imply BOARD
+	imply SPL_BOARD
+	imply TI_I2C_BOARD_DETECT
+
+config TARGET_AM62D2_R5_EVM
+	bool "TI K3 based AM62D2 EVM running on R5"
+	select CPU_V7R
+	select SYS_THUMB_BUILD
+	select K3_LOAD_SYSFW
+	select RAM
+	select SPL_RAM
+	select K3_DDRSS
+	select BINMAN
+	imply SYS_K3_SPL_ATF
+	imply TI_I2C_BOARD_DETECT
+
 endchoice
 
 source "board/ti/am62ax/Kconfig"
 source "board/phytec/phycore_am62ax/Kconfig"
+source "board/ti/am62dx/Kconfig"
 
 endif

board/ti/am62dx/Kconfig

@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+#
+
+if TARGET_AM62D2_R5_EVM || TARGET_AM62D2_A53_EVM
+
+config SYS_BOARD
+	default "am62dx"
+
+config SYS_VENDOR
+	default "ti"
+
+config SYS_CONFIG_NAME
+	default "am62ax_evm"
+
+source "board/ti/common/Kconfig"
+
+endif
+
+if TARGET_AM62D2_R5_EVM
+
+config SPL_LDSCRIPT
+	default "arch/arm/mach-omap2/u-boot-spl.lds"
+
+endif

board/ti/am62dx/MAINTAINERS

@@ -0,0 +1,8 @@
+AM62Dx BOARD
+M:	Vignesh Raghavendra <vigneshr@ti.com>
+M:	Bryan Brattlof <bb@ti.com>
+S:	Maintained
+F:	board/ti/am62dx/
+F:	include/configs/am62a7_evm.h
+F:	configs/am62dx_evm_r5_defconfig
+F:	configs/am62dx_evm_a53_defconfig

board/ti/am62dx/Makefile

@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= evm.o

board/ti/am62dx/am62dx.env

@@ -0,0 +1,21 @@
+#include <env/ti/ti_common.env>
+#include <env/ti/mmc.env>
+#include <env/ti/k3_dfu.env>
+#if CONFIG_CMD_REMOTEPROC
+#include <env/ti/k3_rproc.env>
+#endif
+
+name_kern=Image
+console=ttyS2,115200n8
+args_all=setenv optargs ${optargs} earlycon=ns16550a,mmio32,0x02800000
+	${mtdparts}
+run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}
+
+boot_targets=mmc1 mmc0 usb pxe dhcp
+boot=mmc
+mmcdev=1
+bootpart=1:2
+bootdir=/boot
+rd_spec=-
+
+rproc_fw_binaries= 0 /lib/firmware/am62d-mcu-r5f0_0-fw 1 /lib/firmware/am62d-c71_0-fw

board/ti/am62dx/evm.c

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board specific initialization for AM62Dx platforms
+ *
+ * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ */
+
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+#include <dm/uclass.h>
+#include <env.h>
+#include <fdt_support.h>
+#include <spl.h>
+#include <asm/arch/k3-ddr.h>
+
+#include "../common/fdt_ops.h"
+
+#if defined(CONFIG_XPL_BUILD)
+void spl_perform_fixups(struct spl_image_info *spl_image)
+{
+	if (IS_ENABLED(CONFIG_K3_DDRSS)) {
+		if (IS_ENABLED(CONFIG_K3_INLINE_ECC))
+			fixup_ddr_driver_for_ecc(spl_image);
+	} else {
+		fixup_memory_node(spl_image);
+	}
+}
+#endif
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	ti_set_fdt_env(NULL, NULL);
+	return 0;
+}
+#endif

configs/am62dx_evm_a53_defconfig

@@ -0,0 +1,22 @@
+#include <configs/am62ax_evm_a53_defconfig>
+
+CONFIG_ARM=y
+CONFIG_ARCH_K3=y
+CONFIG_SOC_K3_AM62A7=y
+CONFIG_TARGET_AM62D2_A53_EVM=y
+CONFIG_DEFAULT_DEVICE_TREE="ti/k3-am62d2-evm"
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_DMA=y
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI_FLASH_SFDP_SUPPORT=y
+# CONFIG_SPL_SPI_FLASH_TINY is not set
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x280000
+CONFIG_DFU_SF=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_SOFT_RESET=y
+CONFIG_SPI_FLASH_SOFT_RESET_ON_BOOT=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_S28HX_T=y

configs/am62dx_evm_r5_defconfig

@@ -0,0 +1,20 @@
+#include <configs/am62ax_evm_r5_defconfig>
+
+CONFIG_ARM=y
+CONFIG_ARCH_K3=y
+CONFIG_SOC_K3_AM62A7=y
+CONFIG_TARGET_AM62D2_R5_EVM=y
+CONFIG_DEFAULT_DEVICE_TREE="k3-am62d2-r5-evm"
+# CONFIG_SPL_DMA is not set
+CONFIG_SF_DEFAULT_SPEED=25000000
+CONFIG_SF_DEFAULT_MODE=0
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI_FLASH_SFDP_SUPPORT=y
+# CONFIG_SPL_SPI_FLASH_TINY is not set
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x80000
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_SOFT_RESET=y
+CONFIG_SPI_FLASH_SOFT_RESET_ON_BOOT=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_S28HX_T=y