source "arch/x86/cpu/broadwell/Kconfig"
source "arch/x86/cpu/coreboot/Kconfig"
source "arch/x86/cpu/ivybridge/Kconfig"
+source "arch/x86/cpu/efi/Kconfig"
source "arch/x86/cpu/qemu/Kconfig"
source "arch/x86/cpu/quark/Kconfig"
source "arch/x86/cpu/queensbay/Kconfig"
Increse it if the default size does not fit the board's needs.
This is most likely due to a large ACPI DSDT table is used.
-source "arch/x86/lib/efi/Kconfig"
-
endmenu
obj-$(CONFIG_INTEL_BRASWELL) += braswell/
obj-$(CONFIG_INTEL_BROADWELL) += broadwell/
obj-$(CONFIG_SYS_COREBOOT) += coreboot/
-obj-$(CONFIG_EFI_APP) += efi/
+obj-$(CONFIG_EFI) += efi/
obj-$(CONFIG_QEMU) += qemu/
obj-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += ivybridge/
obj-$(CONFIG_INTEL_QUARK) += quark/
--- /dev/null
+if EFI
+
+config SYS_CAR_ADDR
+ hex
+ default 0x100000
+
+config SYS_CAR_SIZE
+ hex
+ default 0x20000
+
+endif
#
# Copyright (c) 2015 Google, Inc
+ifdef CONFIG_EFI_APP
obj-y += efi.o
obj-y += sdram.o
+endif
+
+ifdef CONFIG_EFI_STUB
+obj-y += car.o
+obj-y += payload.o
+endif
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+.globl car_init
+car_init:
+ jmp car_init_ret
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <efi.h>
+#include <errno.h>
+#include <linux/err.h>
+#include <linux/types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * This function looks for the highest region of memory lower than 4GB which
+ * has enough space for U-Boot where U-Boot is aligned on a page boundary.
+ * It overrides the default implementation found elsewhere which simply
+ * picks the end of ram, wherever that may be. The location of the stack,
+ * the relocation address, and how far U-Boot is moved by relocation are
+ * set in the global data structure.
+ */
+ulong board_get_usable_ram_top(ulong total_size)
+{
+ struct efi_mem_desc *desc, *end;
+ struct efi_entry_memmap *map;
+ int ret, size;
+ uintptr_t dest_addr = 0;
+ struct efi_mem_desc *largest = NULL;
+
+ /*
+ * Find largest area of memory below 4GB. We could
+ * call efi_build_mem_table() for a more accurate picture since it
+ * merges areas together where possible. But that function uses more
+ * pre-relocation memory, and it's not critical that we find the
+ * absolute largest region.
+ */
+ ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
+ if (ret) {
+ /* We should have stopped in dram_init(), something is wrong */
+ debug("%s: Missing memory map\n", __func__);
+ goto err;
+ }
+
+ end = (struct efi_mem_desc *)((ulong)map + size);
+ desc = map->desc;
+ for (; desc < end; desc = efi_get_next_mem_desc(map, desc)) {
+ if (desc->type != EFI_CONVENTIONAL_MEMORY ||
+ desc->physical_start >= 1ULL << 32)
+ continue;
+ if (!largest || desc->num_pages > largest->num_pages)
+ largest = desc;
+ }
+
+ /* If no suitable area was found, return an error. */
+ assert(largest);
+ if (!largest || (largest->num_pages << EFI_PAGE_SHIFT) < (2 << 20))
+ goto err;
+
+ dest_addr = largest->physical_start + (largest->num_pages <<
+ EFI_PAGE_SHIFT);
+
+ return (ulong)dest_addr;
+err:
+ panic("No available memory found for relocation");
+ return 0;
+}
+
+int dram_init(void)
+{
+ struct efi_mem_desc *desc, *end;
+ struct efi_entry_memmap *map;
+ int size, ret;
+
+ ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
+ if (ret) {
+ printf("Cannot find EFI memory map tables, ret=%d\n", ret);
+
+ return -ENODEV;
+ }
+
+ end = (struct efi_mem_desc *)((ulong)map + size);
+ gd->ram_size = 0;
+ desc = map->desc;
+ for (; desc < end; desc = efi_get_next_mem_desc(map, desc)) {
+ if (desc->type < EFI_MMAP_IO)
+ gd->ram_size += desc->num_pages << EFI_PAGE_SHIFT;
+ }
+
+ return 0;
+}
+
+int dram_init_banksize(void)
+{
+ struct efi_mem_desc *desc, *end;
+ struct efi_entry_memmap *map;
+ int ret, size;
+ int num_banks;
+
+ ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
+ if (ret) {
+ /* We should have stopped in dram_init(), something is wrong */
+ debug("%s: Missing memory map\n", __func__);
+ return -ENXIO;
+ }
+ end = (struct efi_mem_desc *)((ulong)map + size);
+ desc = map->desc;
+ for (num_banks = 0;
+ desc < end && num_banks < CONFIG_NR_DRAM_BANKS;
+ desc = efi_get_next_mem_desc(map, desc)) {
+ /*
+ * We only use conventional memory below 4GB, and ignore
+ * anything less than 1MB.
+ */
+ if (desc->type != EFI_CONVENTIONAL_MEMORY ||
+ desc->physical_start >= 1ULL << 32 ||
+ (desc->num_pages << EFI_PAGE_SHIFT) < 1 << 20)
+ continue;
+ gd->bd->bi_dram[num_banks].start = desc->physical_start;
+ gd->bd->bi_dram[num_banks].size = desc->num_pages <<
+ EFI_PAGE_SHIFT;
+ num_banks++;
+ }
+
+ return 0;
+}
+
+int checkcpu(void)
+{
+ return 0;
+}
+
+int print_cpuinfo(void)
+{
+ return default_print_cpuinfo();
+}
+
+/* Find any available tables and copy them to a safe place */
+int reserve_arch(void)
+{
+ struct efi_info_hdr *hdr;
+
+ debug("table=%lx\n", gd->arch.table);
+ if (!gd->arch.table)
+ return 0;
+
+ hdr = (struct efi_info_hdr *)gd->arch.table;
+
+ gd->start_addr_sp -= hdr->total_size;
+ memcpy((void *)gd->start_addr_sp, hdr, hdr->total_size);
+ debug("Stashing EFI table at %lx to %lx, size %x\n",
+ gd->arch.table, gd->start_addr_sp, hdr->total_size);
+ gd->arch.table = gd->start_addr_sp;
+
+ return 0;
+}
obj-y += cmd_boot.o
obj-$(CONFIG_SEABIOS) += coreboot_table.o
obj-y += early_cmos.o
-obj-$(CONFIG_EFI) += efi/
obj-y += e820.o
obj-y += init_helpers.o
obj-y += interrupts.o
+++ /dev/null
-if EFI
-
-config SYS_CAR_ADDR
- hex
- default 0x100000
-
-config SYS_CAR_SIZE
- hex
- default 0x20000
-
-endif
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0+
-#
-# (C) Copyright 2002-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-
-obj-$(CONFIG_EFI_STUB) += car.o
-obj-$(CONFIG_EFI_STUB) += efi.o
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2015 Google, Inc
- * Written by Simon Glass <sjg@chromium.org>
- */
-
-.globl car_init
-car_init:
- jmp car_init_ret
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (c) 2015 Google, Inc
- * Written by Simon Glass <sjg@chromium.org>
- */
-
-#include <common.h>
-#include <debug_uart.h>
-#include <efi.h>
-#include <errno.h>
-#include <linux/err.h>
-#include <linux/types.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * This function looks for the highest region of memory lower than 4GB which
- * has enough space for U-Boot where U-Boot is aligned on a page boundary.
- * It overrides the default implementation found elsewhere which simply
- * picks the end of ram, wherever that may be. The location of the stack,
- * the relocation address, and how far U-Boot is moved by relocation are
- * set in the global data structure.
- */
-ulong board_get_usable_ram_top(ulong total_size)
-{
- struct efi_mem_desc *desc, *end;
- struct efi_entry_memmap *map;
- int ret, size;
- uintptr_t dest_addr = 0;
- struct efi_mem_desc *largest = NULL;
-
- /*
- * Find largest area of memory below 4GB. We could
- * call efi_build_mem_table() for a more accurate picture since it
- * merges areas together where possible. But that function uses more
- * pre-relocation memory, and it's not critical that we find the
- * absolute largest region.
- */
- ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
- if (ret) {
- /* We should have stopped in dram_init(), something is wrong */
- debug("%s: Missing memory map\n", __func__);
- goto err;
- }
-
- end = (struct efi_mem_desc *)((ulong)map + size);
- desc = map->desc;
- for (; desc < end; desc = efi_get_next_mem_desc(map, desc)) {
- if (desc->type != EFI_CONVENTIONAL_MEMORY ||
- desc->physical_start >= 1ULL << 32)
- continue;
- if (!largest || desc->num_pages > largest->num_pages)
- largest = desc;
- }
-
- /* If no suitable area was found, return an error. */
- assert(largest);
- if (!largest || (largest->num_pages << EFI_PAGE_SHIFT) < (2 << 20))
- goto err;
-
- dest_addr = largest->physical_start + (largest->num_pages <<
- EFI_PAGE_SHIFT);
-
- return (ulong)dest_addr;
-err:
- panic("No available memory found for relocation");
- return 0;
-}
-
-int dram_init(void)
-{
- struct efi_mem_desc *desc, *end;
- struct efi_entry_memmap *map;
- int size, ret;
-
- ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
- if (ret) {
- printf("Cannot find EFI memory map tables, ret=%d\n", ret);
-
- return -ENODEV;
- }
-
- end = (struct efi_mem_desc *)((ulong)map + size);
- gd->ram_size = 0;
- desc = map->desc;
- for (; desc < end; desc = efi_get_next_mem_desc(map, desc)) {
- if (desc->type < EFI_MMAP_IO)
- gd->ram_size += desc->num_pages << EFI_PAGE_SHIFT;
- }
-
- return 0;
-}
-
-int dram_init_banksize(void)
-{
- struct efi_mem_desc *desc, *end;
- struct efi_entry_memmap *map;
- int ret, size;
- int num_banks;
-
- ret = efi_info_get(EFIET_MEMORY_MAP, (void **)&map, &size);
- if (ret) {
- /* We should have stopped in dram_init(), something is wrong */
- debug("%s: Missing memory map\n", __func__);
- return -ENXIO;
- }
- end = (struct efi_mem_desc *)((ulong)map + size);
- desc = map->desc;
- for (num_banks = 0;
- desc < end && num_banks < CONFIG_NR_DRAM_BANKS;
- desc = efi_get_next_mem_desc(map, desc)) {
- /*
- * We only use conventional memory below 4GB, and ignore
- * anything less than 1MB.
- */
- if (desc->type != EFI_CONVENTIONAL_MEMORY ||
- desc->physical_start >= 1ULL << 32 ||
- (desc->num_pages << EFI_PAGE_SHIFT) < 1 << 20)
- continue;
- gd->bd->bi_dram[num_banks].start = desc->physical_start;
- gd->bd->bi_dram[num_banks].size = desc->num_pages <<
- EFI_PAGE_SHIFT;
- num_banks++;
- }
-
- return 0;
-}
-
-int checkcpu(void)
-{
- return 0;
-}
-
-int print_cpuinfo(void)
-{
- return default_print_cpuinfo();
-}
-
-/* Find any available tables and copy them to a safe place */
-int reserve_arch(void)
-{
- struct efi_info_hdr *hdr;
-
- debug("table=%lx\n", gd->arch.table);
- if (!gd->arch.table)
- return 0;
-
- hdr = (struct efi_info_hdr *)gd->arch.table;
-
- gd->start_addr_sp -= hdr->total_size;
- memcpy((void *)gd->start_addr_sp, hdr, hdr->total_size);
- debug("Stashing EFI table at %lx to %lx, size %x\n",
- gd->arch.table, gd->start_addr_sp, hdr->total_size);
- gd->arch.table = gd->start_addr_sp;
-
- return 0;
-}
lib/efi
payload stub, application, support code. Mostly arch-neutral
-arch/x86/lib/efi
- helper functions for the fake DRAM init, etc. These can be used by
- any board that runs as a payload.
-
arch/x86/cpu/efi
- x86 support code for running as an EFI application
+ x86 support code for running as an EFI application and payload
board/efi/efi-x86/efi.c
x86 board code for running as an EFI application
projects / u-boot / commitdiff