ARM: meson: add A1 support
Add support for Amlogic A1 SoC family.
Signed-off-by: Igor Prusov <ivprusov@sberdevices.ru>
Signed-off-by: Evgeny Bachinin <eabachinin@sberdevices.ru>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230505125639.3605-4-ivprusov@sberdevices.ru
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
diff --git a/arch/arm/include/asm/arch-meson/a1.h b/arch/arm/include/asm/arch-meson/a1.h
new file mode 100644
index 0000000..86d1a68
--- /dev/null
+++ b/arch/arm/include/asm/arch-meson/a1.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2023 SberDevices, Inc.
+ * Author: Igor Prusov <ivprusov@sberdevices.ru>
+ */
+
+#ifndef __MESON_A1_H__
+#define __MESON_A1_H__
+
+#define A1_SYSCTRL_BASE 0xfe005800
+
+/* SYSCTRL registers */
+#define A1_SYSCTRL_ADDR(off) (A1_SYSCTRL_BASE + ((off) << 2))
+
+#define A1_SYSCTRL_SEC_STATUS_REG4 A1_SYSCTRL_ADDR(0xc4)
+
+#define A1_SYSCTRL_MEM_SIZE_MASK 0xFFFF0000
+#define A1_SYSCTRL_MEM_SIZE_SHIFT 16
+
+#endif /* __MESON_A1_H__ */
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig
index 6cba2c4..519ed56 100644
--- a/arch/arm/mach-meson/Kconfig
+++ b/arch/arm/mach-meson/Kconfig
@@ -51,6 +51,12 @@
help
Select this if your SoC is an S905X/D2
+config MESON_A1
+ bool "A1"
+ select MESON64_COMMON
+ help
+ Select this if your SoC is an A113L
+
endchoice
config SYS_SOC
diff --git a/arch/arm/mach-meson/Makefile b/arch/arm/mach-meson/Makefile
index a9e4046..535b087 100644
--- a/arch/arm/mach-meson/Makefile
+++ b/arch/arm/mach-meson/Makefile
@@ -6,3 +6,4 @@
obj-$(CONFIG_MESON_GX) += board-gx.o
obj-$(CONFIG_MESON_AXG) += board-axg.o
obj-$(CONFIG_MESON_G12A) += board-g12a.o
+obj-$(CONFIG_MESON_A1) += board-a1.o
diff --git a/arch/arm/mach-meson/board-a1.c b/arch/arm/mach-meson/board-a1.c
new file mode 100644
index 0000000..967bb67
--- /dev/null
+++ b/arch/arm/mach-meson/board-a1.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2023 SberDevices, Inc.
+ */
+
+#include <common.h>
+#include <asm/arch/a1.h>
+#include <asm/arch/boot.h>
+#include <asm/armv8/mmu.h>
+#include <asm/io.h>
+#include <linux/compiler.h>
+#include <linux/sizes.h>
+
+phys_size_t get_effective_memsize(void)
+{
+ return ((readl(A1_SYSCTRL_SEC_STATUS_REG4) & A1_SYSCTRL_MEM_SIZE_MASK)
+ >> A1_SYSCTRL_MEM_SIZE_SHIFT) * SZ_1M;
+}
+
+void meson_init_reserved_memory(__maybe_unused void *fdt)
+{
+}
+
+int meson_get_boot_device(void)
+{
+ return -ENOSYS;
+}
+
+static struct mm_region a1_mem_map[] = {
+ {
+ .virt = 0x00000000UL,
+ .phys = 0x00000000UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .virt = 0x80000000UL,
+ .phys = 0x80000000UL,
+ .size = 0x7FE00000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /*
+ * This mem region contains in/out shared memory with bl31,
+ * hence it's marked as NORMAL memory type
+ */
+ .virt = 0xFFE00000UL,
+ .phys = 0xFFE00000UL,
+ .size = 0x00200000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = a1_mem_map;