diff options
| -rw-r--r-- | src/arch/arm64/include/arch/asm.h | 4 | ||||
| -rw-r--r-- | src/arch/arm64/stage_entry.S | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/src/arch/arm64/include/arch/asm.h b/src/arch/arm64/include/arch/asm.h index 0dc297447f..851f3f94c7 100644 --- a/src/arch/arm64/include/arch/asm.h +++ b/src/arch/arm64/include/arch/asm.h @@ -41,4 +41,8 @@ */ #define CPU_RESET_ENTRY(name) ENTRY_WITH_ALIGN(name, 6) +#define ENTRY_WEAK(name) \ + ENTRY(name) \ + .weak name \ + #endif /* __ARM_ARM64_ASM_H */ diff --git a/src/arch/arm64/stage_entry.S b/src/arch/arm64/stage_entry.S index 5ff2c4e12e..4e15dbbddb 100644 --- a/src/arch/arm64/stage_entry.S +++ b/src/arch/arm64/stage_entry.S @@ -228,6 +228,12 @@ CPU_RESET_ENTRY(arm64_cpu_startup_resume) b arm64_c_environment ENDPROC(arm64_cpu_startup_resume) -ENTRY(stage_entry) +/* + * stage_entry is defined as a weak symbol to allow SoCs/CPUs to define a custom + * entry point to perform any fixups that need to be done immediately after + * power on reset. In case SoC/CPU does not need any custom-defined entrypoint, + * this weak symbol can be used to jump directly to arm64_cpu_startup. + */ +ENTRY_WEAK(stage_entry) b arm64_cpu_startup ENDPROC(stage_entry) |