arm: mach-k3: Add basic support for J784S4 SoC definition

Add J784S4 initialization files for initial SPL boot.

config SYS_K3_MCU_SCRATCHPAD_BASE default value is same
for J721E, J721S2, J784S4. So combined them into a single
default.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
[ add firewall configurations and change the R5 MCU scratchpad ]
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # AM69-SK
diff --git a/arch/arm/mach-k3/include/mach/j784s4_hardware.h b/arch/arm/mach-k3/include/mach/j784s4_hardware.h
new file mode 100644
index 0000000..0ffe238
--- /dev/null
+++ b/arch/arm/mach-k3/include/mach/j784s4_hardware.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * K3: J784S4 SoC definitions, structures etc.
+ *
+ * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
+ */
+#ifndef __ASM_ARCH_J784S4_HARDWARE_H
+#define __ASM_ARCH_J784S4_HARDWARE_H
+
+#ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+#endif
+
+#define WKUP_CTRL_MMR0_BASE				0x43000000
+#define MCU_CTRL_MMR0_BASE				0x40f00000
+#define CTRL_MMR0_BASE					0x00100000
+
+#define CTRLMMR_MAIN_DEVSTAT				(CTRL_MMR0_BASE + 0x30)
+#define MAIN_DEVSTAT_BOOT_MODE_B_MASK			BIT(0)
+#define MAIN_DEVSTAT_BOOT_MODE_B_SHIFT			0
+#define MAIN_DEVSTAT_BKUP_BOOTMODE_MASK			GENMASK(3, 1)
+#define MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT		1
+#define MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK	BIT(6)
+#define MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT		6
+#define MAIN_DEVSTAT_BKUP_MMC_PORT_MASK			BIT(7)
+#define MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT		7
+
+#define CTRLMMR_WKUP_DEVSTAT				(WKUP_CTRL_MMR0_BASE + 0x30)
+#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK		GENMASK(5, 3)
+#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT		3
+#define WKUP_DEVSTAT_MCU_ONLY_MASK			BIT(6)
+#define WKUP_DEVSTAT_MCU_ONLY_SHIFT			6
+
+/* ROM HANDOFF Structure location */
+#define ROM_EXTENDED_BOOT_DATA_INFO			0x41cfdb00
+
+/* MCU SCRATCHPAD usage */
+#define TI_SRAM_SCRATCH_BOARD_EEPROM_START	CONFIG_SYS_K3_MCU_SCRATCHPAD_BASE
+
+#if defined(CONFIG_SYS_K3_SPL_ATF) && !defined(__ASSEMBLY__)
+
+#define J784S4_DEV_MCU_RTI0			367
+#define J784S4_DEV_MCU_RTI1			368
+#define J784S4_DEV_MCU_ARMSS0_CPU0		346
+#define J784S4_DEV_MCU_ARMSS0_CPU1		347
+
+static const u32 put_device_ids[] = {
+	J784S4_DEV_MCU_RTI0,
+	J784S4_DEV_MCU_RTI1,
+};
+
+static const u32 put_core_ids[] = {
+	J784S4_DEV_MCU_ARMSS0_CPU1,
+	J784S4_DEV_MCU_ARMSS0_CPU0,     /* Handle CPU0 after CPU1 */
+};
+
+#endif
+
+#endif /* __ASM_ARCH_J784S4_HARDWARE_H */