arm: set the relocated gd with gd->new_gd

Simplify the arm relocation behavior and get gd directly form new_gd,
as it is already done in crt0_64.S:

	ldr	x18, [x18, #GD_NEW_GD]		/* x18 <- gd->new_gd */

This patch avoid assumption on new GD location (new GD is below bd -
with #GD_SIZE offset).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S
index fb6c37c..df9dd83 100644 (file)
--- a/arch/arm/lib/crt0.S
+++ b/arch/arm/lib/crt0.S
@@ -127,8 +127,7 @@ ENTRY(_main)
        ldr     r0, [r9, #GD_START_ADDR_SP]     /* sp = gd->start_addr_sp */
        bic     r0, r0, #7      /* 8-byte alignment for ABI compliance */
        mov     sp, r0
-       ldr     r9, [r9, #GD_BD]                /* r9 = gd->bd */
-       sub     r9, r9, #GD_SIZE                /* new GD is below bd */
+       ldr     r9, [r9, #GD_NEW_GD]            /* r9 <- gd->new_gd */
 
        adr     lr, here
        ldr     r0, [r9, #GD_RELOC_OFF]         /* r0 = gd->reloc_off */