Merge branch 'renesas-dt' into renesas-soc-core

* renesas-dt:
  ARM: mach-shmobile: sh7372 generic board support via DT V2
  ARM: mach-shmobile: Rework sh7372 INTCS demuxer V2
  ARM: mach-shmobile: Use INTC_IRQ_PINS_16H on sh7372
  ARM: mach-shmobile: Use 0x3400 as INTCS vector offset
  ARM: mach-shmobile: Introduce INTC_IRQ_PINS_16H
  ARM: mach-shmobile: Introduce shmobile_setup_delay()

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 8b79e7917a23..cba39d866687 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -19,9 +19,26 @@
  *
  */
 #include <linux/platform_device.h>
+#include <linux/delay.h>
 #include <asm/mach/time.h>
 #include <asm/smp_twd.h>
 
+void __init shmobile_setup_delay(unsigned int max_cpu_core_mhz,
+                                 unsigned int mult, unsigned int div)
+{
+        /* calculate a worst-case loops-per-jiffy value
+         * based on maximum cpu core mhz setting and the
+         * __delay() implementation in arch/arm/lib/delay.S
+         *
+         * this will result in a longer delay than expected
+         * when the cpu core runs on lower frequencies.
+         */
+
+        unsigned int value = (1000000 * mult) / (HZ * div);
+
+        lpj_fine = max_cpu_core_mhz * value;
+}
+
 static void __init shmobile_late_time_init(void)
 {
         /*