arch/arm/mach-kirkwood/mpp.c

   1 /*
   2  * arch/arm/mach-kirkwood/mpp.c
   3  *
   4  * MPP functions for Marvell Kirkwood 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 <mach/hardware.h>
  15 #include <plat/mpp.h>
  16 #include "common.h"
  17 #include "mpp.h"
  18
  19 static unsigned int __init kirkwood_variant(void)
  20 {
  21         u32 dev, rev;
  22
  23         kirkwood_pcie_id(&dev, &rev);
  24
  25         if ((dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0) ||
  26             (dev == MV88F6282_DEV_ID))
  27                 return MPP_F6281_MASK;
  28         if (dev == MV88F6192_DEV_ID && rev >= MV88F6192_REV_A0)
  29                 return MPP_F6192_MASK;
  30         if (dev == MV88F6180_DEV_ID)
  31                 return MPP_F6180_MASK;
  32
  33         pr_err("MPP setup: unknown kirkwood variant (dev %#x rev %#x)\n",
  34                dev, rev);
  35         return 0;
  36 }
  37
  38 void __init kirkwood_mpp_conf(unsigned int *mpp_list)
  39 {
  40         orion_mpp_conf(mpp_list, kirkwood_variant(),
  41                        MPP_MAX, DEV_BUS_VIRT_BASE);
  42 }