mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
38 lines
936 B
C
38 lines
936 B
C
|
/*
|
||
|
|
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/e820.h>
|
||
|
|
|
||
|
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Install a default e820 table with 4 entries as follows:
|
||
|
|
*
|
||
|
|
* 0x000000-0x0a0000 Useable RAM
|
||
|
|
* 0x0a0000-0x100000 Reserved for ISA
|
||
|
|
* 0x100000-gd->ram_size Useable RAM
|
||
|
|
* CONFIG_PCIE_ECAM_BASE PCIe ECAM
|
||
|
|
*/
|
||
|
|
__weak unsigned install_e820_map(unsigned max_entries,
|
||
|
|
struct e820entry *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;
|
||
|
|
entries[2].addr = ISA_END_ADDRESS;
|
||
|
|
entries[2].size = gd->ram_size - ISA_END_ADDRESS;
|
||
|
|
entries[2].type = E820_RAM;
|
||
|
|
entries[3].addr = CONFIG_PCIE_ECAM_BASE;
|
||
|
|
entries[3].size = CONFIG_PCIE_ECAM_SIZE;
|
||
|
|
entries[3].type = E820_RESERVED;
|
||
|
|
|
||
|
|
return 4;
|
||
|
|
}
|