From: Magnus Damm <damm@igel.co.jp>
Date: Wed, 15 Apr 2009 10:50:12 +0000 (+0000)
Subject: sh: arch earlytimer support
X-Git-Tag: v2.6.31-rc1~392^2~41^2~129^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=eaab89197b733d0f81f07d6c44294b674479fda8;p=karo-tx-linux.git

sh: arch earlytimer support

Extend the 32-bit SuperH timer code to register and probe
the earlytimer class of Early Platform Drivers.

This registers the sh_cmt driver if compiled-in.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/kernel/time_32.c b/arch/sh/kernel/time_32.c
index c34e1e0f9b02..04b8c6ab1667 100644
--- a/arch/sh/kernel/time_32.c
+++ b/arch/sh/kernel/time_32.c
@@ -17,6 +17,7 @@
 #include <linux/sched.h>
 #include <linux/clockchips.h>
 #include <linux/mc146818rtc.h>	/* for rtc_lock */
+#include <linux/platform_device.h>
 #include <linux/smp.h>
 #include <asm/clock.h>
 #include <asm/rtc.h>
@@ -228,6 +229,14 @@ void __init time_init(void)
 	local_timer_setup(smp_processor_id());
 #endif
 
+	/*
+	 * Make sure all compiled-in early timers register themselves.
+	 * Run probe() for one "earlytimer" device.
+	 */
+	early_platform_driver_register_all("earlytimer");
+	if (early_platform_driver_probe("earlytimer", 1, 0))
+		return;
+
 	/*
 	 * Find the timer to use as the system timer, it will be
 	 * initialized for us.