diff options
Diffstat (limited to 'arch/x86/cpu/efi')
| -rw-r--r-- | arch/x86/cpu/efi/Makefile | 8 | ||||
| -rw-r--r-- | arch/x86/cpu/efi/efi.c | 42 | ||||
| -rw-r--r-- | arch/x86/cpu/efi/elf_ia32_efi.lds | 94 | ||||
| -rw-r--r-- | arch/x86/cpu/efi/elf_x86_64_efi.lds | 83 | ||||
| -rw-r--r-- | arch/x86/cpu/efi/sdram.c | 29 |
5 files changed, 256 insertions, 0 deletions
diff --git a/arch/x86/cpu/efi/Makefile b/arch/x86/cpu/efi/Makefile new file mode 100644 index 0000000000..e09163715d --- /dev/null +++ b/arch/x86/cpu/efi/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (c) 2015 Google, Inc +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += efi.o +obj-y += sdram.o diff --git a/arch/x86/cpu/efi/efi.c b/arch/x86/cpu/efi/efi.c new file mode 100644 index 0000000000..75ba0d4844 --- /dev/null +++ b/arch/x86/cpu/efi/efi.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <fdtdec.h> +#include <netdev.h> + +int arch_cpu_init(void) +{ +#ifdef CONFIG_SYS_X86_TSC_TIMER + timer_set_base(rdtsc()); +#endif + + return 0; +} + +int board_early_init_f(void) +{ + return 0; +} + +int print_cpuinfo(void) +{ + return default_print_cpuinfo(); +} + +void board_final_cleanup(void) +{ +} + +int misc_init_r(void) +{ + return 0; +} + +int arch_misc_init(void) +{ + return 0; +} diff --git a/arch/x86/cpu/efi/elf_ia32_efi.lds b/arch/x86/cpu/efi/elf_ia32_efi.lds new file mode 100644 index 0000000000..cd3b0a982d --- /dev/null +++ b/arch/x86/cpu/efi/elf_ia32_efi.lds @@ -0,0 +1,94 @@ +/* + * U-Boot EFI linker script + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Modified from usr/lib32/elf_ia32_efi.lds in gnu-efi + */ + +#include <config.h> + +OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") +OUTPUT_ARCH(i386) +ENTRY(_start) +SECTIONS +{ + image_base = .; + .hash : { *(.hash) } /* this MUST come first, EFI expects it */ + . = ALIGN(4096); + .text : + { + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + } + . = ALIGN(4096); + .sdata : + { + *(.got.plt) + *(.got) + *(.srodata) + *(.sdata) + *(.sbss) + *(.scommon) + } + . = ALIGN(4096); + .data : + { + *(.rodata*) + *(.data) + *(.data1) + *(.data.*) + *(.sdata) + *(.got.plt) + *(.got) + /* + * the EFI loader doesn't seem to like a .bss section, so we + * stick it all into .data: + */ + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + + /* U-Boot lists and device tree */ + . = ALIGN(8); + *(SORT(.u_boot_list*)); + . = ALIGN(8); + *(.dtb*); + } + + . = ALIGN(4096); + .dynamic : { *(.dynamic) } + . = ALIGN(4096); + .rel : + { + *(.rel.data) + *(.rel.data.*) + *(.rel.got) + *(.rel.stab) + *(.data.rel.ro.local) + *(.data.rel.local) + *(.data.rel.ro) + *(.data.rel*) + *(.rel.u_boot_list*) + } + . = ALIGN(4096); + .reloc : /* This is the PECOFF .reloc section! */ + { + *(.reloc) + } + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + /DISCARD/ : + { + *(.rel.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + .comment 0 : { *(.comment) } +} diff --git a/arch/x86/cpu/efi/elf_x86_64_efi.lds b/arch/x86/cpu/efi/elf_x86_64_efi.lds new file mode 100644 index 0000000000..9d9f05774a --- /dev/null +++ b/arch/x86/cpu/efi/elf_x86_64_efi.lds @@ -0,0 +1,83 @@ +/* + * U-Boot EFI linker script + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Modified from usr/lib32/elf_x86_64_efi.lds in gnu-efi + */ + +#include <config.h> + +OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64") +OUTPUT_ARCH(i386:x86-64) +ENTRY(_start) +SECTIONS +{ + image_base = .; + .hash : { *(.hash) } /* this MUST come first, EFI expects it */ + . = ALIGN(4096); + .eh_frame : { + *(.eh_frame) + } + + . = ALIGN(4096); + + .text : { + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + } + + . = ALIGN(4096); + + .reloc : { + *(.reloc) + } + + . = ALIGN(4096); + + .data : { + *(.rodata*) + *(.got.plt) + *(.got) + *(.data*) + *(.sdata) + /* the EFI loader doesn't seem to like a .bss section, so we stick + * it all into .data: */ + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + *(.rel.local) + + /* U-Boot lists and device tree */ + . = ALIGN(8); + *(SORT(.u_boot_list*)); + . = ALIGN(8); + *(.dtb*); + } + + . = ALIGN(4096); + .dynamic : { *(.dynamic) } + . = ALIGN(4096); + + .rela : { + *(.rela.data*) + *(.rela.got) + *(.rela.stab) + } + + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + .ignored.reloc : { + *(.rela.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + + .comment 0 : { *(.comment) } +} diff --git a/arch/x86/cpu/efi/sdram.c b/arch/x86/cpu/efi/sdram.c new file mode 100644 index 0000000000..51599445ab --- /dev/null +++ b/arch/x86/cpu/efi/sdram.c @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <efi.h> +#include <asm/u-boot-x86.h> + +DECLARE_GLOBAL_DATA_PTR; + +ulong board_get_usable_ram_top(ulong total_size) +{ + return (ulong)efi_get_ram_base() + gd->ram_size; +} + +int dram_init(void) +{ + /* gd->ram_size is set as part of EFI init */ + + return 0; +} + +void dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = efi_get_ram_base(); + gd->bd->bi_dram[0].size = CONFIG_EFI_RAM_SIZE; +} |