diff options
Diffstat (limited to 'arch/x86/cpu/start64.S')
-rw-r--r-- | arch/x86/cpu/start64.S | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/cpu/start64.S b/arch/x86/cpu/start64.S index 7be834788b9..78e894d2a21 100644 --- a/arch/x86/cpu/start64.S +++ b/arch/x86/cpu/start64.S @@ -26,3 +26,22 @@ _start: /* Should not return here */ jmp . + +.globl board_init_f_r_trampoline64 +.type board_init_f_r_trampoline64, @function +board_init_f_r_trampoline64: + /* + * SDRAM has been initialised, U-Boot code has been copied into + * RAM, BSS has been cleared and relocation adjustments have been + * made. It is now time to jump into the in-RAM copy of U-Boot + * + * %eax = Address of top of new stack + */ + + /* Stack grows down from top of SDRAM */ + movq %rsi, %rsp + + /* New gd is in rdi */ + + /* Re-enter U-Boot by calling board_init_f_r() */ + call board_init_f_r |