arch/powerpc/platforms/86xx/common.c

   1 /*
   2  * Routines common to most mpc86xx-based boards.
   3  *
   4  * This is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/of_platform.h>
  10 #include <asm/synch.h>
  11
  12 #include "mpc86xx.h"
  13
  14 static const struct of_device_id mpc86xx_common_ids[] __initconst = {
  15         { .type = "soc", },
  16         { .compatible = "soc", },
  17         { .compatible = "simple-bus", },
  18         { .name = "localbus", },
  19         { .compatible = "gianfar", },
  20         { .compatible = "fsl,mpc8641-pcie", },
  21         {},
  22 };
  23
  24 int __init mpc86xx_common_publish_devices(void)
  25 {
  26         return of_platform_bus_probe(NULL, mpc86xx_common_ids, NULL);
  27 }
  28
  29 long __init mpc86xx_time_init(void)
  30 {
  31         unsigned int temp;
  32
  33         /* Set the time base to zero */
  34         mtspr(SPRN_TBWL, 0);
  35         mtspr(SPRN_TBWU, 0);
  36
  37         temp = mfspr(SPRN_HID0);
  38         temp |= HID0_TBEN;
  39         mtspr(SPRN_HID0, temp);
  40         isync();
  41
  42         return 0;
  43 }