arm: K3: Add support for AM654 SoC definition

The AM654 device is designed for industrial automation and PLC
controller class platforms among other applications. Introduce
base support for AM654 SoC.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig
index 552b84923e304972aa646d1e62e082c7670d2d33..9892f574c2a72c975ea051af74870aaee0fbd640 100644 (file)
--- a/arch/arm/mach-k3/Kconfig
+++ b/arch/arm/mach-k3/Kconfig
@@ -4,9 +4,40 @@ choice
        prompt "Texas Instruments' K3 based SoC select"
        optional
 
+config SOC_K3_AM6
+       bool "TI's K3 based AM6 SoC Family Support"
+
 endchoice
 
 config SYS_SOC
        default "k3"
 
+config SYS_K3_NON_SECURE_MSRAM_SIZE
+       hex
+       default 0x80000
+       help
+         Describes the total size of the MCU MSRAM. This doesn't
+         specify the total size of SPL as ROM can use some part
+         of this RAM. Once ROM gives control to SPL then this
+         complete size can be usable.
+
+config SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
+       hex
+       default 0x58000
+       help
+         Describes the maximum size of the image that ROM can download
+         from any boot media.
+
+config SYS_K3_MCU_SCRATCHPAD_BASE
+       hex
+       default 0x40280000 if SOC_K3_AM6
+       help
+         Describes the base address of MCU Scratchpad RAM.
+
+config SYS_K3_MCU_SCRATCHPAD_SIZE
+       hex
+       default 0x200 if SOC_K3_AM6
+       help
+         Describes the size of MCU Scratchpad RAM.
+
 endif

diff --git a/arch/arm/mach-k3/Makefile b/arch/arm/mach-k3/Makefile
new file mode 100644 (file)
index 0000000..356fc27
--- /dev/null
+++ b/arch/arm/mach-k3/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier:     GPL-2.0+
+#
+# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
+#      Lokesh Vutla <lokeshvutla@ti.com>
+
+obj-$(CONFIG_SOC_K3_AM6) += am6_init.o

diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c
new file mode 100644 (file)
index 0000000..7a78e85
--- /dev/null
+++ b/arch/arm/mach-k3/am6_init.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * K3: Architecture initialization
+ *
+ * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
+ *     Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#include <common.h>
+#include <spl.h>
+
+#ifdef CONFIG_SPL_BUILD
+void board_init_f(ulong dummy)
+{
+       /* Init DM early in-order to invoke system controller */
+       spl_early_init();
+
+       /* Prepare console output */
+       preloader_console_init();
+}
+
+u32 spl_boot_device(void)
+{
+       return BOOT_DEVICE_RAM;
+}
+#endif
+
+#ifndef CONFIG_SYSRESET
+void reset_cpu(ulong ignored)
+{
+}
+#endif

diff --git a/arch/arm/mach-k3/include/mach/clock.h b/arch/arm/mach-k3/include/mach/clock.h
new file mode 100644 (file)
index 0000000..e3adbcd
--- /dev/null
+++ b/arch/arm/mach-k3/include/mach/clock.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * K3: Common SoC clock definitions.
+ *
+ * (C) Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#ifndef __ASM_ARCH_CLOCK_H
+#define __ASM_ARCH_CLOCK_H
+
+#include <config.h>
+
+/* Clock Defines */
+#define V_OSCK                         24000000
+#define V_SCLK                         V_OSCK
+
+#endif /* __ASM_ARCH_CLOCK_H */