summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/Kconfig3
-rw-r--r--arch/sh/kernel/setup.c20
2 files changed, 22 insertions, 1 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c5b08eb3770e..bbdcd6418ef5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -25,6 +25,7 @@ config SUPERH32
config SUPERH64
def_bool y if CPU_SH5
+ select GENERIC_CALIBRATE_DELAY
config ARCH_DEFCONFIG
string
@@ -57,7 +58,7 @@ config GENERIC_IRQ_PROBE
def_bool y
config GENERIC_CALIBRATE_DELAY
- def_bool y
+ bool
config GENERIC_IOMAP
bool
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index fc098c8af052..267b344099c0 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -27,6 +27,8 @@
#include <linux/debugfs.h>
#include <linux/crash_dump.h>
#include <linux/mmzone.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/page.h>
@@ -180,6 +182,24 @@ static inline void __init reserve_crashkernel(void)
{}
#endif
+#ifndef CONFIG_GENERIC_CALIBRATE_DELAY
+void __cpuinit calibrate_delay(void)
+{
+ struct clk *clk = clk_get(NULL, "cpu_clk");
+
+ if (IS_ERR(clk))
+ panic("Need a sane CPU clock definition!");
+
+ loops_per_jiffy = (clk_get_rate(clk) >> 1) / HZ;
+
+ printk(KERN_INFO "Calibrating delay loop (skipped)... "
+ "%lu.%02lu BogoMIPS PRESET (lpj=%lu)\n",
+ loops_per_jiffy/(500000/HZ),
+ (loops_per_jiffy/(5000/HZ)) % 100,
+ loops_per_jiffy);
+}
+#endif
+
void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn)
{