ARM i.MX: streamline imx_silicon_revision

All i.MX SoCs now use the same imx_silicon_revision() function to get
the revision. Add a separate header file for it and a common function
used on all SoCs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/imx.c b/arch/arm/mach-imx/imx.c
new file mode 100644
index 0000000000..1bc6e23dd8
--- /dev/null
+++ b/arch/arm/mach-imx/imx.c
@@ -0,0 +1,27 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <common.h>
+#include <mach/revision.h>
+
+static int __imx_silicon_revision = IMX_CHIP_REV_UNKNOWN;
+
+int imx_silicon_revision(void)
+{
+	return __imx_silicon_revision;
+}
+
+void imx_set_silicon_revision(int revision)
+{
+	__imx_silicon_revision = revision;
+}