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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <linux/gpio.h>
  22 #include <linux/kernel.h>
  23 #include <linux/of_platform.h>
  24 #include <linux/pinctrl/machine.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/sh_clk.h>
  27 #include <mach/common.h>
  28 #include <mach/r8a73a4.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31
  32 static void __init ape6evm_add_standard_devices(void)
  33 {
  34
  35         struct clk *parent;
  36         struct clk *mp;
  37
  38         r8a73a4_clock_init();
  39
  40         /* MP clock parent = extal2 */
  41         parent      = clk_get(NULL, "extal2");
  42         mp          = clk_get(NULL, "mp");
  43         BUG_ON(IS_ERR(parent) || IS_ERR(mp));
  44
  45         clk_set_parent(mp, parent);
  46         clk_put(parent);
  47         clk_put(mp);
  48
  49         r8a73a4_add_dt_devices();
  50         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  51         platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0);
  52 }
  53
  54 static const char *ape6evm_boards_compat_dt[] __initdata = {
  55         "renesas,ape6evm-reference",
  56         NULL,
  57 };
  58
  59 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
  60         .init_early     = r8a73a4_init_early,
  61         .init_machine   = ape6evm_add_standard_devices,
  62         .dt_compat      = ape6evm_boards_compat_dt,
  63 MACHINE_END