mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
9b5e6396bf
Use CONFIG_IS_ENABLED(EFI_LOADER) to avoid explicitly checking CONFIG_SPL too. This simplifies the conditional. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Alexander Graf <agraf@suse.de>
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <efi_loader.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 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;
|
|
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;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(EFI_LOADER)
|
|
void efi_add_known_memory(void)
|
|
{
|
|
struct e820_entry e820[E820MAX];
|
|
unsigned int i, num;
|
|
u64 start, pages;
|
|
int type;
|
|
|
|
num = install_e820_map(ARRAY_SIZE(e820), e820);
|
|
|
|
for (i = 0; i < num; ++i) {
|
|
start = e820[i].addr;
|
|
pages = ALIGN(e820[i].size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT;
|
|
|
|
switch (e820[i].type) {
|
|
case E820_RAM:
|
|
type = EFI_CONVENTIONAL_MEMORY;
|
|
break;
|
|
case E820_RESERVED:
|
|
type = EFI_RESERVED_MEMORY_TYPE;
|
|
break;
|
|
case E820_ACPI:
|
|
type = EFI_ACPI_RECLAIM_MEMORY;
|
|
break;
|
|
case E820_NVS:
|
|
type = EFI_ACPI_MEMORY_NVS;
|
|
break;
|
|
case E820_UNUSABLE:
|
|
default:
|
|
type = EFI_UNUSABLE_MEMORY;
|
|
break;
|
|
}
|
|
|
|
efi_add_memory_map(start, pages, type, false);
|
|
}
|
|
}
|
|
#endif /* CONFIG_IS_ENABLED(EFI_LOADER) */
|