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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:16:31 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:16:31 -0700
commit902233ee494f9d9da6dbb818316fcbf892bebbed (patch)
treeb3fcfbd1c757851a562ef0921cab4e1b3e2d9f19 /arch/blackfin/mach-bf537/head.S
parente871e3c268a26c35ad805196a01d84a55bb755c6 (diff)
parentc5760abde715dcd9ead66769e45d1896332e9d9c (diff)
downloadop-kernel-dev-902233ee494f9d9da6dbb818316fcbf892bebbed.zip
op-kernel-dev-902233ee494f9d9da6dbb818316fcbf892bebbed.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (30 commits) Blackfin SMC91X ethernet supporting driver: SMC91C111 LEDs are note drived in the kernel like in uboot Blackfin SPI driver: fix bug SPI DMA incomplete transmission Blackfin SPI driver: tweak spi cleanup function to match newer kernel changes Blackfin RTC drivers: update MAINTAINERS information Blackfin serial driver: decouple PARODD and CMSPAR checking from PARENB Blackfin serial driver: actually implement the break_ctl() function Blackfin serial driver: ignore framing and parity errors Blackfin serial driver: hook up our UARTs STP bit with userspaces CMSPAR Blackfin arch: move HI/LO macros into blackfin.h and punt the rest of macros.h as it includes VDSP macros we never use Blackfin arch: redo our linker script a bit Blackfin arch: make sure we initialize our L1 Data B section properly based on the linked kernel Blackfin arch: fix bug can not wakeup from sleep via push buttons Blackfin arch: add support for Alon Bar-Lev's dynamic kernel command-line Blackfin arch: add missing gpio.h header to fix compiling in some pm configurations Blackfin arch: As Mike pointed out range goes form m..MAX_BLACKFIN_GPIO -1 Blackfin arch: fix spelling typo in output Blackfin arch: try to split up functions like this into smaller units according to LKML review Blackfin arch: add proper ENDPROC() Blackfin arch: move more of our startup code to .init so it can be freed once we are up and running Blackfin arch: unify differences between our diff head.S files -- no functional changes ...
Diffstat (limited to 'arch/blackfin/mach-bf537/head.S')
-rw-r--r--arch/blackfin/mach-bf537/head.S35
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S
index 2c2652b..7d902bb 100644
--- a/arch/blackfin/mach-bf537/head.S
+++ b/arch/blackfin/mach-bf537/head.S
@@ -28,6 +28,7 @@
*/
#include <linux/linkage.h>
+#include <linux/init.h>
#include <asm/blackfin.h>
#if CONFIG_BFIN_KERNEL_CLOCK
#include <asm/mach/mem_init.h>
@@ -40,20 +41,21 @@
.extern ___bss_start
.extern _bf53x_relocate_l1_mem
-#define INITIAL_STACK 0xFFB01000
+#define INITIAL_STACK 0xFFB01000
-.text
+__INIT
ENTRY(__start)
-ENTRY(__stext)
/* R0: argument of command line string, passed from uboot, save it */
R7 = R0;
- /* Set the SYSCFG register */
+ /* Set the SYSCFG register:
+ * Enable Cycle Counter and Nesting Of Interrupts (3rd Bit)
+ */
R0 = 0x36;
- SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/
+ SYSCFG = R0;
R0 = 0;
- /* Clear Out All the data and pointer Registers*/
+ /* Clear Out All the data and pointer Registers */
R1 = R0;
R2 = R0;
R3 = R0;
@@ -75,7 +77,7 @@ ENTRY(__stext)
L2 = r0;
L3 = r0;
- /* Clear Out All the DAG Registers*/
+ /* Clear Out All the DAG Registers */
B0 = r0;
B1 = r0;
B2 = r0;
@@ -191,7 +193,7 @@ ENTRY(__stext)
p0.h = hi(UART_DLL);
p0.l = lo(UART_DLL);
- r0 = 0x00(Z);
+ r0 = 0x0(Z);
w[p0] = r0.L;
ssync;
@@ -218,6 +220,7 @@ ENTRY(__stext)
#if CONFIG_BFIN_KERNEL_CLOCK
call _start_dma_code;
#endif
+
/* Code for initializing Async memory banks */
p2.h = hi(EBIU_AMBCTL1);
@@ -272,6 +275,7 @@ ENTRY(__stext)
.LWAIT_HERE:
jump .LWAIT_HERE;
+ENDPROC(__start)
ENTRY(_real_start)
[ -- sp ] = reti;
@@ -291,7 +295,7 @@ ENTRY(_real_start)
p2.h = ___bss_stop;
r0 = 0;
p2 -= p1;
- lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2;
+ lsetup (.L_clear_bss, .L_clear_bss) lc0 = p2;
.L_clear_bss:
B[p1++] = r0;
@@ -306,7 +310,7 @@ ENTRY(_real_start)
r0 = r0 >> 1;
p2 = r0;
r0 = 0;
- lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2;
+ lsetup (.L_clear_zero, .L_clear_zero) lc0 = p2;
.L_clear_zero:
W[p1++] = r0;
@@ -328,9 +332,8 @@ ENTRY(_real_start)
r1 = p3;
[p1] = r1;
-
/*
- * load the current thread pointer and stack
+ * load the current thread pointer and stack
*/
r1.l = _init_thread_union;
r1.h = _init_thread_union;
@@ -341,9 +344,10 @@ ENTRY(_real_start)
sp = r1;
usp = sp;
fp = sp;
- call _start_kernel;
-.L_exit:
- jump.s .L_exit;
+ jump.l _start_kernel;
+ENDPROC(_real_start)
+
+__FINIT
.section .l1.text
#if CONFIG_BFIN_KERNEL_CLOCK
@@ -462,6 +466,7 @@ ENTRY(_start_dma_code)
SSYNC;
RTS;
+ENDPROC(_start_dma_code)
#endif /* CONFIG_BFIN_KERNEL_CLOCK */
ENTRY(_bfin_reset)
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