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kernel/linux-imx6_3.14.28/arch/arm/mach-shmobile/board-koelsch-reference.c 2.3 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Koelsch board support - Reference DT implementation
   *
   * Copyright (C) 2013  Renesas Electronics Corporation
   * Copyright (C) 2013  Renesas Solutions Corp.
   * Copyright (C) 2013  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.h>
  #include <linux/clkdev.h>
  #include <linux/kernel.h>
  #include <linux/of_platform.h>
  #include <mach/common.h>
  #include <mach/rcar-gen2.h>
  #include <mach/r8a7791.h>
  #include <asm/mach/arch.h>
  
  static void __init koelsch_add_standard_devices(void)
  {
  #ifdef CONFIG_COMMON_CLK
  	/*
  	 * This is a really crude hack to provide clkdev support to the SCIF
  	 * and CMT devices until they get moved to DT.
  	 */
  	static const char * const scif_names[] = {
  		"scifa0", "scifa1", "scifb0", "scifb1", "scifb2", "scifa2",
  		"scif0", "scif1", "scif2", "scif3", "scif4", "scif5", "scifa3",
  		"scifa4", "scifa5",
  	};
  	struct clk *clk;
  	unsigned int i;
  
  	for (i = 0; i < ARRAY_SIZE(scif_names); ++i) {
  		clk = clk_get(NULL, scif_names[i]);
  		if (clk) {
  			clk_register_clkdev(clk, NULL, "sh-sci.%u", i);
  			clk_put(clk);
  		}
  	}
  
  	clk = clk_get(NULL, "cmt0");
  	if (clk) {
  		clk_register_clkdev(clk, NULL, "sh_cmt.0");
  		clk_put(clk);
  	}
  #else
  	r8a7791_clock_init();
  #endif
  	r8a7791_add_dt_devices();
  	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  }
  
  static const char * const koelsch_boards_compat_dt[] __initconst = {
  	"renesas,koelsch",
  	"renesas,koelsch-reference",
  	NULL,
  };
  
  DT_MACHINE_START(KOELSCH_DT, "koelsch")
  	.smp		= smp_ops(r8a7791_smp_ops),
  	.init_early	= r8a7791_init_early,
  	.init_time	= rcar_gen2_timer_init,
  	.init_machine	= koelsch_add_standard_devices,
  	.init_late	= shmobile_init_late,
  	.dt_compat	= koelsch_boards_compat_dt,
  MACHINE_END