[POWERPC] CPM2: Reset the CPM when early debugging is not enabled.
authorLaurent Pinchart <laurentp@cse-semaphore.com>
Thu, 10 Apr 2008 15:02:38 +0000 (17:02 +0200)
committerKumar Gala <galak@kernel.crashing.org>
Thu, 17 Apr 2008 06:01:37 +0000 (01:01 -0500)
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>
arch/powerpc/sysdev/cpm2.c

index fa70ee3..4ab3f1f 100644 (file)
@@ -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);