arch/arm/mach-shmobile/board-ape6evm-reference.c

   1 /*
   2  * APE6EVM board support
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/gpio.h>
  18 #include <linux/kernel.h>
  19 #include <linux/of_platform.h>
  20 #include <linux/pinctrl/machine.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/sh_clk.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26
  27 #include "common.h"
  28 #include "r8a73a4.h"
  29
  30 static void __init ape6evm_add_standard_devices(void)
  31 {
  32
  33         struct clk *parent;
  34         struct clk *mp;
  35
  36         r8a73a4_clock_init();
  37
  38         /* MP clock parent = extal2 */
  39         parent      = clk_get(NULL, "extal2");
  40         mp          = clk_get(NULL, "mp");
  41         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
  42
  43         clk_set_parent(mp, parent);
  44         clk_put(parent);
  45         clk_put(mp);
  46
  47         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  48 }
  49
  50 static const char *ape6evm_boards_compat_dt[] __initdata = {
  51         "renesas,ape6evm-reference",
  52         NULL,
  53 };
  54
  55 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
  56         .init_early     = shmobile_init_delay,
  57         .init_machine   = ape6evm_add_standard_devices,
  58         .init_late      = shmobile_init_late,
  59         .dt_compat      = ape6evm_boards_compat_dt,
  60 MACHINE_END