diff options
Diffstat (limited to 'arch/blackfin/mach-bf533/head.S')
| -rw-r--r-- | arch/blackfin/mach-bf533/head.S | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S index 4db9e624090..7dd0e9c3a93 100644 --- a/arch/blackfin/mach-bf533/head.S +++ b/arch/blackfin/mach-bf533/head.S @@ -28,7 +28,9 @@ */ #include <linux/linkage.h> +#include <linux/init.h> #include <asm/blackfin.h> +#include <asm/trace.h> #if CONFIG_BFIN_KERNEL_CLOCK #include <asm/mach/mem_init.h> #endif @@ -45,19 +47,19 @@ #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; - /*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; @@ -79,7 +81,7 @@ ENTRY(__stext) L2 = r0; L3 = r0; - /* Clear Out All the DAG Registers*/ + /* Clear Out All the DAG Registers */ B0 = r0; B1 = r0; B2 = r0; @@ -95,6 +97,10 @@ ENTRY(__stext) M2 = r0; M3 = r0; + trace_buffer_start(p0,r0); + P0 = R1; + R0 = R1; + #if CONFIG_DEBUG_KERNEL_START /* @@ -265,6 +271,7 @@ ENTRY(__stext) .LWAIT_HERE: jump .LWAIT_HERE; +ENDPROC(__start) ENTRY(_real_start) [ -- sp ] = reti; @@ -303,7 +310,7 @@ ENTRY(_real_start) .L_clear_zero: W[p1++] = r0; -/* pass the uboot arguments to the global value command line */ + /* pass the uboot arguments to the global value command line */ R0 = R7; call _cmdline_init; @@ -322,7 +329,7 @@ ENTRY(_real_start) [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; @@ -333,9 +340,10 @@ 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 @@ -439,12 +447,13 @@ ENTRY(_start_dma_code) p0.h = hi(SIC_IWR); p0.l = lo(SIC_IWR); - r0.l = lo(IWR_ENABLE_ALL) - r0.h = hi(IWR_ENABLE_ALL) + r0.l = lo(IWR_ENABLE_ALL); + r0.h = hi(IWR_ENABLE_ALL); [p0] = r0; SSYNC; RTS; +ENDPROC(_start_dma_code) #endif /* CONFIG_BFIN_KERNEL_CLOCK */ ENTRY(_bfin_reset) |