Blackfin arch: allow people to select the feature that is unavailable to the kernel

[safe/jmp/linux-2.6] / arch / blackfin / mach-bf533 / head.S

diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S
index 69da0e8..3be6fee 100644 (file)
--- a/arch/blackfin/mach-bf533/head.S
+++ b/arch/blackfin/mach-bf533/head.S
@@ -32,6 +32,7 @@
 #include <asm/blackfin.h>
 #include <asm/trace.h>
 #if CONFIG_BFIN_KERNEL_CLOCK
+#include <asm/mach-common/clocks.h>
 #include <asm/mach/mem_init.h>
 #endif
 #if CONFIG_DEBUG_KERNEL_START
@@ -52,10 +53,12 @@ __INIT
 ENTRY(__start)
        /* R0: argument of command line string, passed from uboot, save it */
        R7 = R0;
-       /* Set the SYSCFG register:
-        * Enable Cycle Counter and Nesting Of Interrupts (3rd Bit)
-        */
-       R0 = 0x36;
+       /* Enable Cycle Counter and Nesting Of Interrupts */
+#ifdef CONFIG_BFIN_SCRATCH_REG_CYCLES
+       R0 = SYSCFG_SNEN;
+#else
+       R0 = SYSCFG_SNEN | SYSCFG_CCEN;
+#endif
        SYSCFG = R0;
        R0 = 0;
 
@@ -97,7 +100,7 @@ ENTRY(__start)
        M2 = r0;
        M3 = r0;
 
-       trace_buffer_start(p0,r0);
+       trace_buffer_init(p0,r0);
        P0 = R1;
        R0 = R1;