arch/arm/mach-mv78xx0/mpp.c

   1 /*
   2  * arch/arm/mach-mv78x00/mpp.c
   3  *
   4  * MPP functions for Marvell MV78x00 SoCs
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10 #include <linux/gpio.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/io.h>
  14 #include <plat/mpp.h>
  15 #include <mach/hardware.h>
  16 #include "common.h"
  17 #include "mpp.h"
  18
  19 static unsigned int __init mv78xx0_variant(void)
  20 {
  21         u32 dev, rev;
  22
  23         mv78xx0_pcie_id(&dev, &rev);
  24
  25         if (dev == MV78100_DEV_ID && rev >= MV78100_REV_A0)
  26                 return MPP_78100_A0_MASK;
  27
  28         printk(KERN_ERR "MPP setup: unknown mv78x00 variant "
  29                         "(dev %#x rev %#x)\n", dev, rev);
  30         return 0;
  31 }
  32
  33 void __init mv78xx0_mpp_conf(unsigned int *mpp_list)
  34 {
  35         orion_mpp_conf(mpp_list, mv78xx0_variant(),
  36                        MPP_MAX, DEV_BUS_VIRT_BASE);
  37 }