2 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 DECLARE_GLOBAL_DATA_PTR;
13 * Install a default e820 table with 4 entries as follows:
15 * 0x000000-0x0a0000 Useable RAM
16 * 0x0a0000-0x100000 Reserved for ISA
17 * 0x100000-gd->ram_size Useable RAM
18 * CONFIG_PCIE_ECAM_BASE PCIe ECAM
20 __weak unsigned install_e820_map(unsigned max_entries,
21 struct e820entry *entries)
24 entries[0].size = ISA_START_ADDRESS;
25 entries[0].type = E820_RAM;
26 entries[1].addr = ISA_START_ADDRESS;
27 entries[1].size = ISA_END_ADDRESS - ISA_START_ADDRESS;
28 entries[1].type = E820_RESERVED;
29 entries[2].addr = ISA_END_ADDRESS;
30 entries[2].size = gd->ram_size - ISA_END_ADDRESS;
31 entries[2].type = E820_RAM;
32 entries[3].addr = CONFIG_PCIE_ECAM_BASE;
33 entries[3].size = CONFIG_PCIE_ECAM_SIZE;
34 entries[3].type = E820_RESERVED;