board: ti: j784s4: Add board support for J784S4 EVM

Add board files for J784S4 EVM.

SYS_DISABLE_DCACHE_OPS is selected in the Kconfig because
J784S4/AM69 are a coherent architecture at A72 level by
MSMC support.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # AM69-SK

arch/arm/mach-k3/Kconfig

@@ -157,5 +157,6 @@ source "arch/arm/mach-k3/am62x/Kconfig"
 source "arch/arm/mach-k3/am62ax/Kconfig"
 source "arch/arm/mach-k3/j721e/Kconfig"
 source "arch/arm/mach-k3/j721s2/Kconfig"
+source "arch/arm/mach-k3/j784s4/Kconfig"
 
 endif

arch/arm/mach-k3/j784s4/Kconfig

@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+#	Hari Nagalla <hnagalla@ti.com>
+
+if SOC_K3_J784S4
+
+choice
+	prompt "K3 J784S4 board"
+	optional
+
+config TARGET_J784S4_A72_EVM
+	bool "TI K3 based J784S4 EVM running on A72"
+	select ARM64
+	select BOARD_LATE_INIT
+	select SYS_DISABLE_DCACHE_OPS
+	select BINMAN
+
+config TARGET_J784S4_R5_EVM
+	bool "TI K3 based J784S4 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
+
+endchoice
+
+source "board/ti/j784s4/Kconfig"
+
+endif

board/ti/j784s4/Kconfig

@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+#	Hari Nagalla <hnagalla@ti.com>
+
+if TARGET_J784S4_A72_EVM
+
+config SYS_BOARD
+       default "j784s4"
+
+config SYS_VENDOR
+       default "ti"
+
+config SYS_CONFIG_NAME
+       default "j784s4_evm"
+
+source "board/ti/common/Kconfig"
+
+endif
+
+if TARGET_J784S4_R5_EVM
+
+config SYS_BOARD
+       default "j784s4"
+
+config SYS_VENDOR
+       default "ti"
+
+config SYS_CONFIG_NAME
+       default "j784s4_evm"
+
+config SPL_LDSCRIPT
+	default "arch/arm/mach-omap2/u-boot-spl.lds"
+
+source "board/ti/common/Kconfig"
+
+endif

board/ti/j784s4/MAINTAINERS

@@ -0,0 +1,6 @@
+J784S4 EVM BOARD
+M:	Apurva Nandan <a-nandan@ti.com>
+S:	Maintained
+F:	board/ti/j784s4
+F:	arch/arm/mach-k3/j784s4
+F:	include/configs/j784s4_evm.h

board/ti/j784s4/Makefile

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+#	Hari Nagalla <hnagalla@ti.com>
+#
+
+obj-y += evm.o

board/ti/j784s4/evm.c

@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Board specific initialization for J784S4 EVM
+ *
+ * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+ *	Hari Nagalla <hnagalla@ti.com>
+ *
+ */
+
+#include <init.h>
+#include <spl.h>
+#include "../common/fdt_ops.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}
+
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	ti_set_fdt_env(NULL, NULL);
+	return 0;
+}
+#endif
+
+void spl_board_init(void)
+{
+}

include/configs/j784s4_evm.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Configuration header file for K3 J784S4 EVM
+ *
+ * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+ *	Hari Nagalla <hnagalla@ti.com>
+ */
+
+#ifndef __CONFIG_J784S4_EVM_H
+#define __CONFIG_J784S4_EVM_H
+
+/* Now for the remaining common defines */
+#include <configs/ti_armv7_common.h>
+
+#endif /* __CONFIG_J784S4_EVM_H */