t-kernel-zh team mailing list archive

[DU HUANPENG <opentkernel@xxxxxxx>]

为了移植时减少对基础代码的修改，将 SP 定义移至芯片定义头文件中，
以后可能可以放到 KBuild 或 IDE 的配置选项中去。
- - - - - - - - - - - - - - - -

>From 30420643d983ed90da2abbfe3f84e3da82326b70 Mon Sep 17 00:00:00 2001
From: DU HUANPENG <u74147@xxxxxxxxx>
Date: Tue, 12 Dec 2017 22:06:57 +0800
Subject: [PATCH] arm9: move initial sp to machine dependent header

CONFIG_INIT_SP: include/sys/sysdepend/tef_em1d/machine_depend.h

Signed-off-by: DU HUANPENG <u74147@xxxxxxxxx>
---
 tkernel_source/include/sys/sysdepend/tef_em1d/machine_depend.h | 2 ++
 tkernel_source/monitor/hwdepend/tef_em1d/src/reset.S           | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tkernel_source/include/sys/sysdepend/tef_em1d/machine_depend.h b/tkernel_source/include/sys/sysdepend/tef_em1d/machine_depend.h
index 5e1e8ea..2b38e46 100644
--- a/tkernel_source/include/sys/sysdepend/tef_em1d/machine_depend.h
+++ b/tkernel_source/include/sys/sysdepend/tef_em1d/machine_depend.h
@@ -46,4 +46,6 @@
 #define _Csym			0
 #endif
 
+#define CONFIG_INIT_SP		0xa0020000
+
 #endif /* __SYS_MACHINE_DEPEND_H__ */
diff --git a/tkernel_source/monitor/hwdepend/tef_em1d/src/reset.S b/tkernel_source/monitor/hwdepend/tef_em1d/src/reset.S
index e965130..f533ffc 100644
--- a/tkernel_source/monitor/hwdepend/tef_em1d/src/reset.S
+++ b/tkernel_source/monitor/hwdepend/tef_em1d/src/reset.S
@@ -89,7 +89,7 @@ startup_entry:
 	msr	cpsr_fsxc, r0
 
 // use On-Chip SRAM as stack area
-	ldr	sp, =0xa0020000
+	ldr	sp, =CONFIG_INIT_SP
 
 // not in effect: MMU, cache (D/I), program-flow prediction, High-Vector, VIC
 // in effect: Force AP, TEX remap, Subpage AP
-- 
2.7.4