[PATCH 02/20] bootwrapper: Set timebase_period_ns from dt_fixup_cpu_clocks.
From: Scott Wood <hidden>
Date: 2007-08-20 17:39:52
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
This lets udelay() work properly on platforms which use dt_fixup_cpu_clocks. Signed-off-by: Scott Wood <redacted> --- arch/powerpc/boot/devtree.c | 2 ++ arch/powerpc/boot/ops.h | 2 ++ 2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/boot/devtree.c b/arch/powerpc/boot/devtree.c
index c995155..ae8b886 100644
--- a/arch/powerpc/boot/devtree.c
+++ b/arch/powerpc/boot/devtree.c@@ -74,6 +74,8 @@ void dt_fixup_cpu_clocks(u32 cpu, u32 tb, u32 bus) if (bus > 0) setprop_val(devp, "bus-frequency", bus); } + + timebase_period_ns = 1000000000 / tb; } void dt_fixup_clock(const char *path, u32 freq)
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h
index 8607706..aebd6ed 100644
--- a/arch/powerpc/boot/ops.h
+++ b/arch/powerpc/boot/ops.h@@ -191,4 +191,6 @@ static inline void exit(void) static char _bss_stack[size]; \ void *_platform_stack_top = _bss_stack + sizeof(_bss_stack); +extern unsigned long timebase_period_ns; + #endif /* _PPC_BOOT_OPS_H_ */
--
1.5.0.3