mvmfp: add MFP configuration support for PANTHEON

This patch adds the Multiple Function Pin configuration support for
Marvell PANTHEON SoCs

Signed-off-by: Lei Wen <leiwen@marvell.com>

arch/arm/include/asm/arch-pantheon/mfp.h

@@ -0,0 +1,41 @@
+/*
+ * Based on arch/arm/include/asm/arch-armada100/mfp.h
+ * (C) Copyright 2011
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Lei Wen <leiwen@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef __PANTHEON_MFP_H
+#define __PANTHEON_MFP_H
+
+/*
+ * Frequently used MFP Configuration macros for all PANTHEON family of SoCs
+ *
+ * offset, pull,pF, drv,dF, edge,eF ,afn,aF
+ */
+/* UART2 */
+#define MFP47_UART2_RXD		MFP_REG(0x198) | MFP_AF6 | MFP_DRIVE_MEDIUM
+#define MFP48_UART2_TXD		MFP_REG(0x19c) | MFP_AF6 | MFP_DRIVE_MEDIUM
+
+/* More macros can be defined here... */
+
+#define MFP_PIN_MAX	117
+#endif

drivers/gpio/mvmfp.c

@@ -28,6 +28,8 @@
 #include <asm/arch/mfp.h>
 #ifdef CONFIG_ARMADA100
 #include <asm/arch/armada100.h>
+#elif defined(CONFIG_PANTHEON)
+#include <asm/arch/pantheon.h>
 #else
 #error Unsupported SoC...
 #endif