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+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
+# David Huang <d-huang@ti.com>
+
+choice
+ prompt "K3 J721S2 board"
+ optional
+
+config TARGET_J721S2_A72_EVM
+ bool "TI K3 based J721S2 EVM running on A72"
+ select ARM64
+ select SOC_K3_J721S2
+ select BOARD_LATE_INIT
+ imply TI_I2C_BOARD_DETECT
+ select SYS_DISABLE_DCACHE_OPS
+
+config TARGET_J721S2_R5_EVM
+ bool "TI K3 based J721S2 EVM running on R5"
+ select CPU_V7R
+ select SYS_THUMB_BUILD
+ select SOC_K3_J721S2
+ select K3_LOAD_SYSFW
+ select RAM
+ select SPL_RAM
+ select K3_DDRSS
+ imply SYS_K3_SPL_ATF
+ imply TI_I2C_BOARD_DETECT
+
+endchoice
+
+if TARGET_J721S2_A72_EVM
+
+config SYS_BOARD
+ default "j721s2"
+
+config SYS_VENDOR
+ default "ti"
+
+config SYS_CONFIG_NAME
+ default "j721s2_evm"
+
+source "board/ti/common/Kconfig"
+
+endif
+
+if TARGET_J721S2_R5_EVM
+
+config SYS_BOARD
+ default "j721s2"
+
+config SYS_VENDOR
+ default "ti"
+
+config SYS_CONFIG_NAME
+ default "j721s2_evm"
+
+config SPL_LDSCRIPT
+ default "arch/arm/mach-omap2/u-boot-spl.lds"
+
+source "board/ti/common/Kconfig"
+
+endif
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+J721S2 BOARD
+M: Aswath Govindraju <a-govindraju@ti.com>
+S: Maintained
+F: board/ti/j721s2
+F: include/configs/j721s2_evm.h
+F: configs/j721s2_evm_r5_defconfig
+F: configs/j721s2_evm_a72_defconfig
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+#
+# Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
+# David Huang <d-huang@ti.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += evm.o
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board specific initialization for J721S2 EVM
+ *
+ * Copyright (C) 2021 Texas Instruments Incorporated - http://www.ti.com/
+ * David Huang <d-huang@ti.com>
+ *
+ */
+
+#include <common.h>
+#include <env.h>
+#include <fdt_support.h>
+#include <generic-phy.h>
+#include <image.h>
+#include <init.h>
+#include <log.h>
+#include <net.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/hardware.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <spl.h>
+#include <asm/arch/sys_proto.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+
+#include "../common/board_detect.h"
+
+#define board_is_j721s2_som() board_ti_k3_is("J721S2X-PM1-SOM")
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+ return 0;
+}
+
+int dram_init(void)
+{
+#ifdef CONFIG_PHYS_64BIT
+ gd->ram_size = 0x100000000;
+#else
+ gd->ram_size = 0x80000000;
+#endif
+
+ return 0;
+}
+
+ulong board_get_usable_ram_top(ulong total_size)
+{
+#ifdef CONFIG_PHYS_64BIT
+ /* Limit RAM used by U-Boot to the DDR low region */
+ if (gd->ram_top > 0x100000000)
+ return 0x100000000;
+#endif
+
+ return gd->ram_top;
+}
+
+int dram_init_banksize(void)
+{
+ /* Bank 0 declares the memory available in the DDR low region */
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+ gd->bd->bi_dram[0].size = 0x7fffffff;
+ gd->ram_size = 0x80000000;
+
+#ifdef CONFIG_PHYS_64BIT
+ /* Bank 1 declares the memory available in the DDR high region */
+ gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
+ gd->bd->bi_dram[1].size = 0x37fffffff;
+ gd->ram_size = 0x400000000;
+#endif
+
+ return 0;
+}
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+ if (!strcmp(name, "k3-j721s2-common-proc-board"))
+ return 0;
+
+ return -1;
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+ int ret;
+
+ ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000");
+ if (ret < 0)
+ ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000",
+ "sram@70000000");
+ if (ret)
+ printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
+
+ return ret;
+}
+#endif
+
+#ifdef CONFIG_TI_I2C_BOARD_DETECT
+int do_board_detect(void)
+{
+ int ret;
+
+ ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
+ CONFIG_EEPROM_CHIP_ADDRESS);
+ if (ret)
+ pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
+ CONFIG_EEPROM_CHIP_ADDRESS, ret);
+
+ return ret;
+}
+
+int checkboard(void)
+{
+ struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+
+ if (do_board_detect())
+ /* EEPROM not populated */
+ printf("Board: %s rev %s\n", "J721S2X-PM1-SOM", "E1");
+ else
+ printf("Board: %s rev %s\n", ep->name, ep->version);
+
+ return 0;
+}
+
+static void setup_board_eeprom_env(void)
+{
+ char *name = "j721s2";
+
+ if (do_board_detect())
+ goto invalid_eeprom;
+
+ if (board_is_j721s2_som())
+ name = "j721s2";
+ else
+ printf("Unidentified board claims %s in eeprom header\n",
+ board_ti_get_name());
+
+invalid_eeprom:
+ set_board_info_env_am6(name);
+}
+
+static void setup_serial(void)
+{
+ struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+ unsigned long board_serial;
+ char *endp;
+ char serial_string[17] = { 0 };
+
+ if (env_get("serial#"))
+ return;
+
+ board_serial = simple_strtoul(ep->serial, &endp, 16);
+ if (*endp != '\0') {
+ pr_err("Error: Can't set serial# to %s\n", ep->serial);
+ return;
+ }
+
+ snprintf(serial_string, sizeof(serial_string), "%016lx", board_serial);
+ env_set("serial#", serial_string);
+}
+#endif
+
+int board_late_init(void)
+{
+ if (IS_ENABLED(CONFIG_TI_I2C_BOARD_DETECT)) {
+ setup_board_eeprom_env();
+ setup_serial();
+ }
+
+ return 0;
+}
+
+void spl_board_init(void)
+{
+}