arm: initialize gd for AArch64

Commit adc421e4cee8 "arm: move gd handling outside of C code" removed
the call to arch_setup_gd() on ARM and replaced it with assembly code
in crt0.S. However, AArch64 uses a different startup file, and the same
change was not made to it. This leaves gd uninitialized on AArch64, which
typically leads to hangs or crashes. This change fixes that.

Fixes: adc421e4cee8 ("arm: move gd handling outside of C code")
Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index b4fc760..cad22c7 100644 (file)
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -78,6 +78,8 @@ ENTRY(_main)
        mov     x0, sp
        bl      board_init_f_alloc_reserve
        mov     sp, x0
+       /* set up gd here, outside any C code */
+       mov     x18, x0
        bl      board_init_f_init_reserve
 
        mov     x0, #0