From: Kevin Hilman <khilman@mvista.com>
To: linux-omap-open-source@linux.omap.com
Subject: [PATCH 1/2] ARM: OMAP: Need to enable 32k-sync clock
Date: Tue, 13 Nov 2007 14:45:42 -0800 [thread overview]
Message-ID: <20071113224626.653078724@mvista.com> (raw)
In-Reply-To: 20071113224541.567151514@mvista.com
[-- Attachment #1: use-sync-32k-clock.patch --]
[-- Type: text/plain, Size: 865 bytes --]
When CONFIG_OMAP_RESET_CLOCKS=y is enabled on OMAP3, the 32k sync
clock is disabled, resulting in a crash when any access to it is done,
including a sched_clock().
Signed-off-by: Kevin Hilman <khilman@mvista.com>
---
arch/arm/plat-omap/common.c | 6 ++++++
1 file changed, 6 insertions(+)
Index: dev/arch/arm/plat-omap/common.c
===================================================================
--- dev.orig/arch/arm/plat-omap/common.c
+++ dev/arch/arm/plat-omap/common.c
@@ -236,6 +236,12 @@ static int __init omap_init_clocksource_
"%s: can't register clocksource!\n";
if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
+ struct clk *sync_32k_ick;
+
+ sync_32k_ick = clk_get(NULL, "omap_32ksync_ick");
+ if (sync_32k_ick)
+ clk_enable(sync_32k_ick);
+
clocksource_32k.mult = clocksource_hz2mult(32768,
clocksource_32k.shift);
--
next prev parent reply other threads:[~2007-11-13 22:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-13 22:45 [PATCH 0/2] OMAP3 updates for 32k timer reorg Kevin Hilman
2007-11-13 22:45 ` Kevin Hilman [this message]
2007-11-13 22:45 ` [PATCH 2/2] ARM: OMAP: Update 32k sync timer for OMAP3 Kevin Hilman
2007-11-23 20:27 ` [PATCH 0/2] OMAP3 updates for 32k timer reorg Tony Lindgren
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