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authorWolfgang Denk <wd@denx.de>2010-10-26 14:34:52 +0200
committerWolfgang Denk <wd@denx.de>2010-10-26 21:05:30 +0200
commit25ddd1fb0a2281b182529afbc8fda5de2dc16d96 (patch)
treeb1d57d9d1324fb6b8fddf7ebc976dbe822468649 /arch/arm/cpu/arm1136/start.S
parent16a354f920f3959ed847bd917bdfbc7eba48cf1e (diff)
downloadu-boot-linaro-stable-25ddd1fb0a2281b182529afbc8fda5de2dc16d96.tar.gz
Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not being able to use "sizeof(struct global_data)" in assembler files. Recent experience has shown that manual synchronization is not reliable enough. This patch renames CONFIG_SYS_GBL_DATA_SIZE into GENERATED_GBL_DATA_SIZE which gets automatically generated by the asm-offsets tool. In the result, all definitions of this value can be deleted from the board config files. We have to make sure that all files that reference such data include the new <asm-offsets.h> file. No other changes have been done yet, but it is obvious that similar changes / simplifications can be done for other, related macro definitions as well. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/arm/cpu/arm1136/start.S')
-rw-r--r--arch/arm/cpu/arm1136/start.S9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm/cpu/arm1136/start.S b/arch/arm/cpu/arm1136/start.S
index 1d4637d50..07d0c859c 100644
--- a/arch/arm/cpu/arm1136/start.S
+++ b/arch/arm/cpu/arm1136/start.S
@@ -28,6 +28,7 @@
* MA 02111-1307 USA
*/
+#include <asm-offsets.h>
#include <config.h>
#include <version.h>
.globl _start
@@ -380,7 +381,7 @@ stack_setup:
sub sp, r0, #128 /* leave 32 words for abort-stack */
#else
sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */
- sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */
+ sub r0, r0, #GENERATED_GBL_DATA_SIZE /* bdinfo */
#ifdef CONFIG_USE_IRQ
sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
#endif
@@ -510,7 +511,7 @@ cpu_init_crit:
#else
adr r2, _start
sub r2, r2, #(CONFIG_SYS_MALLOC_LEN)
- sub r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
+ sub r2, r2, #(GENERATED_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
#endif
ldmia r2, {r2 - r3} @ get values for "aborted" pc and cpsr (into parm regs)
add r0, sp, #S_FRAME_SIZE @ grab pointer to old stack
@@ -547,7 +548,7 @@ cpu_init_crit:
#else
adr r13, _start @ setup our mode stack (enter in banked mode)
sub r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN) @ move past malloc pool
- sub r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ move to reserved a couple spots for abort stack
+ sub r13, r13, #(GENERATED_GBL_DATA_SIZE+8) @ move to reserved a couple spots for abort stack
#endif
str lr, [r13] @ save caller lr in position 0 of saved stack
@@ -569,7 +570,7 @@ cpu_init_crit:
#else
ldr r0, _armboot_start @ get data regions start
sub r0, r0, #(CONFIG_SYS_MALLOC_LEN) @ move past malloc pool
- sub r0, r0, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ move past gbl and a couple spots for abort stack
+ sub r0, r0, #(GENERATED_GBL_DATA_SIZE+8) @ move past gbl and a couple spots for abort stack
#endif
str lr, [r0] @ save caller lr in position 0 of saved stack
mrs r0, spsr @ get the spsr