u-boot/arch/x86/lib/e820.c
Bin Meng 59ec719df6 x86: Move install_e820_map() out of zimage.c
install_e820_map() has nothing to do with zimage related codes.
Move it to a dedicated place.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-10-21 07:46:25 -06:00

37 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;
}