microblaze: Fix gd_t address which is placed at the end of BRAM

Setup gd from ASM to be availalbe for board_init_r.
Setting it up in spl_board_init is too late when
MALLOC is used.
Space for gd is located behind MALLOC area at the end of BRAM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/microblaze/cpu/spl.c b/arch/microblaze/cpu/spl.c
index 0912261..2cc0a2d 100644 (file)
--- a/arch/microblaze/cpu/spl.c
+++ b/arch/microblaze/cpu/spl.c
@@ -25,8 +25,6 @@ u32 spl_boot_device(void)
 /* Board initialization after bss clearance */
 void spl_board_init(void)
 {
-       gd = (gd_t *)CONFIG_SPL_STACK_ADDR;
-
        /* enable console uart printing */
        preloader_console_init();
 }

diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S
index e0e3470..14c2f12 100644 (file)
--- a/arch/microblaze/cpu/start.S
+++ b/arch/microblaze/cpu/start.S
@@ -152,6 +152,7 @@ clear_bss:
 #ifndef CONFIG_SPL_BUILD
        brai    board_init_f
 #else
+       addi    r31, r0, CONFIG_SYS_SPL_MALLOC_END
        brai    board_init_r
 #endif
 1:     bri     1b