1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-meson/board-a1.c b/arch/arm/mach-meson/board-a1.c
new file mode 100644
index 0000000000..967bb67182
--- /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;