On 20/11/2018 10:32, chr...@rtems.org wrote:
From: Chris Johns <chr...@rtems.org>
---
bsps/arm/shared/start/start.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/bsps/arm/shared/start/start.S b/bsps/arm/shared/start/start.S
index e4df46f656..f9f2baec32 100644
--- a/bsps/arm/shared/start/start.S
+++ b/bsps/arm/shared/start/start.S
@@ -302,7 +302,7 @@ bsp_start_skip_hyp_svc_switch:
mov r1, r5 /* machine type number or ~0 for DT boot */
mov r2, r6 /* physical address of ATAGs or DTB */
- b bsp_start_hook_0
+ bl bsp_start_hook_0
bsp_start_hook_0_done:
@@ -406,7 +406,7 @@ _start:
ldr sp, =_ISR_Stack_area_end
ldr lr, =bsp_start_hook_0_done + 1
- b bsp_start_hook_0
+ bl bsp_start_hook_0
bsp_start_hook_0_done:
No, this breaks the start of some BSPs which start executing in a flash,
initialize the SDRAM in bsp_start_hook_0() and then execute from SDRAM
after the return from bsp_start_hook_0(). The link register is loaded
with an absolute address:
ldr lr, =bsp_start_hook_0_done + 1
The bl uses the current program counter.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
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