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| author | Bin Meng <bmeng.cn@gmail.com> | 2015-10-08 03:19:10 (GMT) |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-10-21 13:46:25 (GMT) |
| commit | 59ec719df62bcb397066aeee66fdbd8f042ca3c7 (patch) | |
| tree | a1b03e864915b5325fa579ac4733bd1630778084 /arch/x86/lib/e820.c | |
| parent | 19038e1bb629a365aaf971a65744e2f0e8866d62 (diff) | |
| download | u-boot-59ec719df62bcb397066aeee66fdbd8f042ca3c7.tar.xz | |
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>
Diffstat (limited to 'arch/x86/lib/e820.c')
| -rw-r--r-- | arch/x86/lib/e820.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/x86/lib/e820.c b/arch/x86/lib/e820.c new file mode 100644 index 0000000..5babfde --- /dev/null +++ b/arch/x86/lib/e820.c @@ -0,0 +1,37 @@ +/* + * 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; +} |