ARM: imx: Add mx53 support to common msl functions.

Add mx53 support to cpu.c and mm.c.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 18 insertions, 1 deletions

diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c
index 8c9a29e322dc..a00d2bc7246a 100644
--- a/arch/arm/mach-mx5/cpu.c
+++ b/arch/arm/mach-mx5/cpu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
@@ -92,6 +92,23 @@ static int __init mx51_neon_fixup(void)
 late_initcall(mx51_neon_fixup);
 #endif
 
+/*
+ * Returns:
+ *      the silicon revision of the cpu
+ *      -EINVAL - not a mx53
+ */
+int mx53_revision(void)
+{
+        if (!cpu_is_mx53())
+                return -EINVAL;
+
+        if (cpu_silicon_rev == -1)
+                query_silicon_parameter();
+
+        return cpu_silicon_rev;
+}
+EXPORT_SYMBOL(mx53_revision);
+
 static int __init post_cpu_init(void)
 {
         unsigned int reg;