diff options
Diffstat (limited to 'src/arch/arm64/armv8/bootblock.S')
| -rw-r--r-- | src/arch/arm64/armv8/bootblock.S | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/src/arch/arm64/armv8/bootblock.S b/src/arch/arm64/armv8/bootblock.S index 4a9fea9af6..e5758bca0d 100644 --- a/src/arch/arm64/armv8/bootblock.S +++ b/src/arch/arm64/armv8/bootblock.S @@ -16,21 +16,14 @@ #include <arch/asm.h> +/* NOTE: When making changes to general ARM64 initialization, keep in mind that + * there are other CPU entry points, using BOOTBLOCK_CUSTOM or entering the CPU + * in a later stage (like Tegra). Changes should generally be put into + * arm64_cpu_init so they can be shared between those instances. */ + ENTRY(_start) - /* Initialize PSTATE, SCTLR and caches to clean state. */ + /* Initialize PSTATE, SCTLR and caches to clean state, set up stack. */ bl arm64_init_cpu - /* 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) |