diff options
Diffstat (limited to 'src/arch/arm64/armv8/bootblock.S')
| -rw-r--r-- | src/arch/arm64/armv8/bootblock.S | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/src/arch/arm64/armv8/bootblock.S b/src/arch/arm64/armv8/bootblock.S index a23a5f2788..4a9fea9af6 100644 --- a/src/arch/arm64/armv8/bootblock.S +++ b/src/arch/arm64/armv8/bootblock.S @@ -1,7 +1,7 @@ /* * Early initialization code for aarch64 (a.k.a. armv8) * - * Copyright 2013 Google Inc. + * Copyright 2015 Google Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -14,21 +14,23 @@ * GNU General Public License for more details. */ - .section ".id", "a", %progbits +#include <arch/asm.h> - .globl __id_start -__id_start: -ver: - .asciz COREBOOT_VERSION -vendor: - .asciz CONFIG_MAINBOARD_VENDOR -part: - .asciz CONFIG_MAINBOARD_PART_NUMBER -.long __id_end - ver /* Reverse offset to the vendor id */ -.long __id_end - vendor /* Reverse offset to the vendor id */ -.long __id_end - part /* Reverse offset to the part number */ -.long CONFIG_ROM_SIZE /* Size of this romimage */ - .globl __id_end +ENTRY(_start) + /* Initialize PSTATE, SCTLR and caches to clean state. */ + bl arm64_init_cpu -__id_end: -.previous + /* Initialize stack with sentinel value to later check overflow. */ + ldr x0, =_stack + ldr x1, =_estack + ldr x2, =0xdeadbeefdeadbeef +stack_init_loop: + stp x2, x2, [x0], #16 + cmp x0, x1 + bne stack_init_loop + + /* Leave a line of beef dead for easier visibility in stack dumps. */ + sub sp, x0, #16 + + bl main +ENDPROC(_start) |