blob: 0a690fde685800aef771ecbccddc66db16d238ff (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Miao Yan <yanmiaobest@gmail.com>
*/
#include <common.h>
#include <asm/e820.h>
DECLARE_GLOBAL_DATA_PTR;
unsigned int install_e820_map(unsigned int max_entries,
struct e820_entry *entries)
{
entries[0].addr = 0;
entries[0].size = ISA_START_ADDRESS;
entries[0].type = E820_RAM;
entries[1].addr = ISA_START_ADDRESS;
entries[1].size = ISA_END_ADDRESS - ISA_START_ADDRESS;
entries[1].type = E820_RESERVED;
/*
* since we use memalign(malloc) to allocate high memory for
* storing ACPI tables, we need to reserve them in e820 tables,
* otherwise kernel will reclaim them and data will be corrupted
*/
entries[2].addr = ISA_END_ADDRESS;
entries[2].size = gd->relocaddr - TOTAL_MALLOC_LEN - ISA_END_ADDRESS;
entries[2].type = E820_RAM;
/* for simplicity, reserve entire malloc space */
entries[3].addr = gd->relocaddr - TOTAL_MALLOC_LEN;
entries[3].size = TOTAL_MALLOC_LEN;
entries[3].type = E820_RESERVED;
entries[4].addr = gd->relocaddr;
entries[4].size = gd->ram_size - gd->relocaddr;
entries[4].type = E820_RESERVED;
entries[5].addr = CONFIG_PCIE_ECAM_BASE;
entries[5].size = CONFIG_PCIE_ECAM_SIZE;
entries[5].type = E820_RESERVED;
return 6;
}
|