1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2022 MediaTek Inc.
4 * Author: Sam Shih <sam.shih@mediatek.com>
5 */
6
7 #include <cpu_func.h>
8 #include <init.h>
9 #include <asm/armv8/mmu.h>
10 #include <asm/system.h>
11 #include <asm/global_data.h>
12 #include <linux/sizes.h>
13
14 DECLARE_GLOBAL_DATA_PTR;
15
dram_init(void)16 int dram_init(void)
17 {
18 gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE, SZ_2G);
19
20 return 0;
21 }
22
reset_cpu(void)23 void reset_cpu(void)
24 {
25 psci_system_reset();
26 }
27
28 static struct mm_region mt7986_mem_map[] = {
29 {
30 /* DDR */
31 .virt = 0x40000000UL,
32 .phys = 0x40000000UL,
33 .size = 0x80000000UL,
34 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
35 }, {
36 .virt = 0x00000000UL,
37 .phys = 0x00000000UL,
38 .size = 0x40000000UL,
39 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
40 PTE_BLOCK_NON_SHARE |
41 PTE_BLOCK_PXN | PTE_BLOCK_UXN
42 }, {
43 0,
44 }
45 };
46
47 struct mm_region *mem_map = mt7986_mem_map;
48