1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2023 SberDevices, Inc.
4 */
5
6#include <common.h>
7#include <asm/arch/a1.h>
8#include <asm/arch/boot.h>
9#include <asm/armv8/mmu.h>
10#include <asm/io.h>
11#include <linux/compiler.h>
12#include <linux/sizes.h>
13
14phys_size_t get_effective_memsize(void)
15{
16	return ((readl(A1_SYSCTRL_SEC_STATUS_REG4) & A1_SYSCTRL_MEM_SIZE_MASK)
17		>> A1_SYSCTRL_MEM_SIZE_SHIFT) * SZ_1M;
18}
19
20void meson_init_reserved_memory(__maybe_unused void *fdt)
21{
22}
23
24int meson_get_boot_device(void)
25{
26	return -ENOSYS;
27}
28
29static struct mm_region a1_mem_map[] = {
30	{
31		.virt = 0x00000000UL,
32		.phys = 0x00000000UL,
33		.size = 0x80000000UL,
34		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
35			PTE_BLOCK_INNER_SHARE
36	}, {
37		.virt = 0x80000000UL,
38		.phys = 0x80000000UL,
39		.size = 0x7FE00000UL,
40		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
41			PTE_BLOCK_NON_SHARE |
42			PTE_BLOCK_PXN | PTE_BLOCK_UXN
43	}, {
44		/*
45		 * This mem region contains in/out shared memory with bl31,
46		 * hence it's marked as NORMAL memory type
47		 */
48		.virt = 0xFFE00000UL,
49		.phys = 0xFFE00000UL,
50		.size = 0x00200000UL,
51		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
52			PTE_BLOCK_INNER_SHARE
53	}, {
54		/* List terminator */
55		0,
56	}
57};
58
59struct mm_region *mem_map = a1_mem_map;
60