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authorLaurent Pinchart <laurentp@cse-semaphore.com>2008-04-10 17:02:38 +0200
committerKumar Gala <galak@kernel.crashing.org>2008-04-17 01:01:37 -0500
commit872a15deed2f6c2dc14353a6109adde99cfee690 (patch)
tree8095620d96d1eec45d0e59d541aa18246da2625f
parent0585fa5fb74001487e71c9f04875803e1f1174e1 (diff)
downloadlinux-872a15deed2f6c2dc14353a6109adde99cfee690.tar.bz2
[POWERPC] CPM2: Reset the CPM when early debugging is not enabled.
Similarly to what is done for PQ1-based platforms, this patch resets the PQ2 Communication Processor Module in cpm2_reset() when early debugging is not enabled. This helps avoiding conflicts when the boot loader configured the CPM in an unexpected way. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
-rw-r--r--arch/powerpc/sysdev/cpm2.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c
index fa70ee31349e..4ab3f1f5a7c3 100644
--- a/arch/powerpc/sysdev/cpm2.c
+++ b/arch/powerpc/sysdev/cpm2.c
@@ -80,6 +80,12 @@ void __init cpm2_reset(void)
/* Tell everyone where the comm processor resides.
*/
cpmp = &cpm2_immr->im_cpm;
+
+#ifndef CONFIG_PPC_EARLY_DEBUG_CPM
+ /* Reset the CPM.
+ */
+ cpm_command(CPM_CR_RST, 0);
+#endif
}
static DEFINE_SPINLOCK(cmd_lock);