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kernel/linux-imx6_3.14.28/arch/arm/mach-shmobile/setup-emev2.c 1.97 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Emma Mobile EV2 processor support
   *
   * Copyright (C) 2012  Magnus Damm
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; version 2 of the License.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   */
  #include <linux/clk-provider.h>
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/of_platform.h>
  #include <mach/common.h>
  #include <mach/emev2.h>
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  static struct map_desc emev2_io_desc[] __initdata = {
  #ifdef CONFIG_SMP
  	/* 2M mapping for SCU + L2 controller */
  	{
  		.virtual	= 0xf0000000,
  		.pfn		= __phys_to_pfn(0x1e000000),
  		.length		= SZ_2M,
  		.type		= MT_DEVICE
  	},
  #endif
  };
  
  void __init emev2_map_io(void)
  {
  	iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
  }
  
  void __init emev2_init_delay(void)
  {
  	shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
  }
  
  static void __init emev2_add_standard_devices_dt(void)
  {
  #ifdef CONFIG_COMMON_CLK
  	of_clk_init(NULL);
  #else
  	emev2_clock_init();
  #endif
  	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  }
  
  static const char *emev2_boards_compat_dt[] __initdata = {
  	"renesas,emev2",
  	NULL,
  };
  
  DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
  	.smp		= smp_ops(emev2_smp_ops),
  	.map_io		= emev2_map_io,
  	.init_early	= emev2_init_delay,
  	.init_machine	= emev2_add_standard_devices_dt,
  	.init_late	= shmobile_init_late,
  	.dt_compat	= emev2_boards_compat_dt,
  MACHINE_END