arch/mips/pnx833x/common/setup.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  setup.c: Setup PNX833X Soc.
   4  *
   5  *  Copyright 2008 NXP Semiconductors
   6  *        Chris Steel <chris.steel@nxp.com>
   7  *    Daniel Laird <daniel.j.laird@nxp.com>
   8  *
   9  *  Based on software written by:
  10  *      Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/ioport.h>
  15 #include <linux/io.h>
  16 #include <linux/pci.h>
  17 #include <asm/reboot.h>
  18 #include <pnx833x.h>
  19 #include <gpio.h>
  20
  21 extern void pnx833x_board_setup(void);
  22 extern void pnx833x_machine_restart(char *);
  23 extern void pnx833x_machine_halt(void);
  24 extern void pnx833x_machine_power_off(void);
  25
  26 int __init plat_mem_setup(void)
  27 {
  28         /* set mips clock to 320MHz */
  29 #if defined(CONFIG_SOC_PNX8335)
  30         PNX8335_WRITEFIELD(0x17, CLOCK_PLL_CPU_CTL, FREQ);
  31 #endif
  32         pnx833x_gpio_init();    /* so it will be ready in board_setup() */
  33
  34         pnx833x_board_setup();
  35
  36         _machine_restart = pnx833x_machine_restart;
  37         _machine_halt = pnx833x_machine_halt;
  38         pm_power_off = pnx833x_machine_power_off;
  39
  40         /* IO/MEM resources. */
  41         set_io_port_base(KSEG1);
  42         ioport_resource.start = 0;
  43         ioport_resource.end = ~0;
  44         iomem_resource.start = 0;
  45         iomem_resource.end = ~0;
  46
  47         return 0;
  48 }