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kernel/linux-imx6_3.14.28/arch/arm/mach-s3c24xx/pll-s3c2410.c 3.71 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Copyright (c) 2006-2007 Simtec Electronics
   *	http://armlinux.simtec.co.uk/
   *	Ben Dooks <ben@simtec.co.uk>
   *	Vincent Sanders <vince@arm.linux.org.uk>
   *
   * S3C2410 CPU PLL tables
   *
   * 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; either version 2 of the License, or
   * (at your option) any later version.
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
  
  #include <linux/types.h>
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/device.h>
  #include <linux/list.h>
  #include <linux/clk.h>
  #include <linux/err.h>
  
  #include <plat/cpu.h>
  #include <plat/cpu-freq-core.h>
  
  static struct cpufreq_frequency_table pll_vals_12MHz[] = {
      { .frequency = 34000000,  .driver_data = PLLVAL(82, 2, 3),   },
      { .frequency = 45000000,  .driver_data = PLLVAL(82, 1, 3),   },
      { .frequency = 51000000,  .driver_data = PLLVAL(161, 3, 3),  },
      { .frequency = 48000000,  .driver_data = PLLVAL(120, 2, 3),  },
      { .frequency = 56000000,  .driver_data = PLLVAL(142, 2, 3),  },
      { .frequency = 68000000,  .driver_data = PLLVAL(82, 2, 2),   },
      { .frequency = 79000000,  .driver_data = PLLVAL(71, 1, 2),   },
      { .frequency = 85000000,  .driver_data = PLLVAL(105, 2, 2),  },
      { .frequency = 90000000,  .driver_data = PLLVAL(112, 2, 2),  },
      { .frequency = 101000000, .driver_data = PLLVAL(127, 2, 2),  },
      { .frequency = 113000000, .driver_data = PLLVAL(105, 1, 2),  },
      { .frequency = 118000000, .driver_data = PLLVAL(150, 2, 2),  },
      { .frequency = 124000000, .driver_data = PLLVAL(116, 1, 2),  },
      { .frequency = 135000000, .driver_data = PLLVAL(82, 2, 1),   },
      { .frequency = 147000000, .driver_data = PLLVAL(90, 2, 1),   },
      { .frequency = 152000000, .driver_data = PLLVAL(68, 1, 1),   },
      { .frequency = 158000000, .driver_data = PLLVAL(71, 1, 1),   },
      { .frequency = 170000000, .driver_data = PLLVAL(77, 1, 1),   },
      { .frequency = 180000000, .driver_data = PLLVAL(82, 1, 1),   },
      { .frequency = 186000000, .driver_data = PLLVAL(85, 1, 1),   },
      { .frequency = 192000000, .driver_data = PLLVAL(88, 1, 1),   },
      { .frequency = 203000000, .driver_data = PLLVAL(161, 3, 1),  },
  
      /* 2410A extras */
  
      { .frequency = 210000000, .driver_data = PLLVAL(132, 2, 1),  },
      { .frequency = 226000000, .driver_data = PLLVAL(105, 1, 1),  },
      { .frequency = 266000000, .driver_data = PLLVAL(125, 1, 1),  },
      { .frequency = 268000000, .driver_data = PLLVAL(126, 1, 1),  },
      { .frequency = 270000000, .driver_data = PLLVAL(127, 1, 1),  },
  };
  
  static int s3c2410_plls_add(struct device *dev, struct subsys_interface *sif)
  {
  	return s3c_plltab_register(pll_vals_12MHz, ARRAY_SIZE(pll_vals_12MHz));
  }
  
  static struct subsys_interface s3c2410_plls_interface = {
  	.name		= "s3c2410_plls",
  	.subsys		= &s3c2410_subsys,
  	.add_dev	= s3c2410_plls_add,
  };
  
  static int __init s3c2410_pll_init(void)
  {
  	return subsys_interface_register(&s3c2410_plls_interface);
  
  }
  arch_initcall(s3c2410_pll_init);
  
  static struct subsys_interface s3c2410a_plls_interface = {
  	.name		= "s3c2410a_plls",
  	.subsys		= &s3c2410a_subsys,
  	.add_dev	= s3c2410_plls_add,
  };
  
  static int __init s3c2410a_pll_init(void)
  {
  	return subsys_interface_register(&s3c2410a_plls_interface);
  }
  arch_initcall(s3c2410a_pll_init);