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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <asm/e820.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Install a default e820 table with 4 entries as follows:
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*
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* 0x000000-0x0a0000 Useable RAM
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* 0x0a0000-0x100000 Reserved for ISA
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* 0x100000-gd->ram_size Useable RAM
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* CONFIG_PCIE_ECAM_BASE PCIe ECAM
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*/
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__weak unsigned int install_e820_map(unsigned int max_entries,
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struct e820_entry *entries)
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{
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entries[0].addr = 0;
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entries[0].size = ISA_START_ADDRESS;
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entries[0].type = E820_RAM;
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entries[1].addr = ISA_START_ADDRESS;
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entries[1].size = ISA_END_ADDRESS - ISA_START_ADDRESS;
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entries[1].type = E820_RESERVED;
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entries[2].addr = ISA_END_ADDRESS;
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entries[2].size = gd->ram_size - ISA_END_ADDRESS;
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entries[2].type = E820_RAM;
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entries[3].addr = CONFIG_PCIE_ECAM_BASE;
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entries[3].size = CONFIG_PCIE_ECAM_SIZE;
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entries[3].type = E820_RESERVED;
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return 4;
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}
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#if CONFIG_IS_ENABLED(EFI_LOADER)
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void efi_add_known_memory(void)
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{
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struct e820_entry e820[E820MAX];
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unsigned int i, num;
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u64 start, ram_top;
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int type;
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num = install_e820_map(ARRAY_SIZE(e820), e820);
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ram_top = (u64)gd->ram_top & ~EFI_PAGE_MASK;
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if (!ram_top)
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ram_top = 0x100000000ULL;
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for (i = 0; i < num; ++i) {
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start = e820[i].addr;
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switch (e820[i].type) {
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case E820_RAM:
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type = EFI_CONVENTIONAL_MEMORY;
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break;
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case E820_RESERVED:
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type = EFI_RESERVED_MEMORY_TYPE;
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break;
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case E820_ACPI:
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type = EFI_ACPI_RECLAIM_MEMORY;
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break;
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case E820_NVS:
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type = EFI_ACPI_MEMORY_NVS;
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break;
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case E820_UNUSABLE:
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default:
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type = EFI_UNUSABLE_MEMORY;
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break;
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}
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if (type == EFI_CONVENTIONAL_MEMORY) {
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efi_add_conventional_memory_map(start,
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start + e820[i].size,
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ram_top);
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} else {
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efi_add_memory_map(start, e820[i].size, type);
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}
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}
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}
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#endif /* CONFIG_IS_ENABLED(EFI_LOADER) */
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