s3c2440-pll-16934400.c

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/* arch/arm/mach-s3c2440/s3c2440-pll-16934400.c
 *
 * Copyright (c) 2006-2008 Simtec Electronics
 *  http://armlinux.simtec.co.uk/
 *  Ben Dooks <[email protected]>
 *  Vincent Sanders <[email protected]>
 *
 * S3C2440/S3C2442 CPU PLL tables (16.93444MHz Crystal)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/err.h>

#include <plat/cpu.h>
#include <plat/cpu-freq-core.h>

static struct cpufreq_frequency_table s3c2440_plls_169344[] __initdata = {
    { .frequency = 78019200,    .index = PLLVAL(121, 5, 3),     },  /* FVco 624.153600 */
    { .frequency = 84067200,    .index = PLLVAL(131, 5, 3),     },  /* FVco 672.537600 */
    { .frequency = 90115200,    .index = PLLVAL(141, 5, 3),     },  /* FVco 720.921600 */
    { .frequency = 96163200,    .index = PLLVAL(151, 5, 3),     },  /* FVco 769.305600 */
    { .frequency = 102135600,   .index = PLLVAL(185, 6, 3),     },  /* FVco 817.084800 */
    { .frequency = 108259200,   .index = PLLVAL(171, 5, 3),     },  /* FVco 866.073600 */
    { .frequency = 114307200,   .index = PLLVAL(127, 3, 3),     },  /* FVco 914.457600 */
    { .frequency = 120234240,   .index = PLLVAL(134, 3, 3),     },  /* FVco 961.873920 */
    { .frequency = 126161280,   .index = PLLVAL(141, 3, 3),     },  /* FVco 1009.290240 */
    { .frequency = 132088320,   .index = PLLVAL(148, 3, 3),     },  /* FVco 1056.706560 */
    { .frequency = 138015360,   .index = PLLVAL(155, 3, 3),     },  /* FVco 1104.122880 */
    { .frequency = 144789120,   .index = PLLVAL(163, 3, 3),     },  /* FVco 1158.312960 */
    { .frequency = 150100363,   .index = PLLVAL(187, 9, 2),     },  /* FVco 600.401454 */
    { .frequency = 156038400,   .index = PLLVAL(121, 5, 2),     },  /* FVco 624.153600 */
    { .frequency = 162086400,   .index = PLLVAL(126, 5, 2),     },  /* FVco 648.345600 */
    { .frequency = 168134400,   .index = PLLVAL(131, 5, 2),     },  /* FVco 672.537600 */
    { .frequency = 174048000,   .index = PLLVAL(177, 7, 2),     },  /* FVco 696.192000 */
    { .frequency = 180230400,   .index = PLLVAL(141, 5, 2),     },  /* FVco 720.921600 */
    { .frequency = 186278400,   .index = PLLVAL(124, 4, 2),     },  /* FVco 745.113600 */
    { .frequency = 192326400,   .index = PLLVAL(151, 5, 2),     },  /* FVco 769.305600 */
    { .frequency = 198132480,   .index = PLLVAL(109, 3, 2),     },  /* FVco 792.529920 */
    { .frequency = 204271200,   .index = PLLVAL(185, 6, 2),     },  /* FVco 817.084800 */
    { .frequency = 210268800,   .index = PLLVAL(141, 4, 2),     },  /* FVco 841.075200 */
    { .frequency = 216518400,   .index = PLLVAL(171, 5, 2),     },  /* FVco 866.073600 */
    { .frequency = 222264000,   .index = PLLVAL(97, 2, 2),  },  /* FVco 889.056000 */
    { .frequency = 228614400,   .index = PLLVAL(127, 3, 2),     },  /* FVco 914.457600 */
    { .frequency = 234259200,   .index = PLLVAL(158, 4, 2),     },  /* FVco 937.036800 */
    { .frequency = 240468480,   .index = PLLVAL(134, 3, 2),     },  /* FVco 961.873920 */
    { .frequency = 246960000,   .index = PLLVAL(167, 4, 2),     },  /* FVco 987.840000 */
    { .frequency = 252322560,   .index = PLLVAL(141, 3, 2),     },  /* FVco 1009.290240 */
    { .frequency = 258249600,   .index = PLLVAL(114, 2, 2),     },  /* FVco 1032.998400 */
    { .frequency = 264176640,   .index = PLLVAL(148, 3, 2),     },  /* FVco 1056.706560 */
    { .frequency = 270950400,   .index = PLLVAL(120, 2, 2),     },  /* FVco 1083.801600 */
    { .frequency = 276030720,   .index = PLLVAL(155, 3, 2),     },  /* FVco 1104.122880 */
    { .frequency = 282240000,   .index = PLLVAL(92, 1, 2),  },  /* FVco 1128.960000 */
    { .frequency = 289578240,   .index = PLLVAL(163, 3, 2),     },  /* FVco 1158.312960 */
    { .frequency = 294235200,   .index = PLLVAL(131, 2, 2),     },  /* FVco 1176.940800 */
    { .frequency = 300200727,   .index = PLLVAL(187, 9, 1),     },  /* FVco 600.401454 */
    { .frequency = 306358690,   .index = PLLVAL(191, 9, 1),     },  /* FVco 612.717380 */
    { .frequency = 312076800,   .index = PLLVAL(121, 5, 1),     },  /* FVco 624.153600 */
    { .frequency = 318366720,   .index = PLLVAL(86, 3, 1),  },  /* FVco 636.733440 */
    { .frequency = 324172800,   .index = PLLVAL(126, 5, 1),     },  /* FVco 648.345600 */
    { .frequency = 330220800,   .index = PLLVAL(109, 4, 1),     },  /* FVco 660.441600 */
    { .frequency = 336268800,   .index = PLLVAL(131, 5, 1),     },  /* FVco 672.537600 */
    { .frequency = 342074880,   .index = PLLVAL(93, 3, 1),  },  /* FVco 684.149760 */
    { .frequency = 348096000,   .index = PLLVAL(177, 7, 1),     },  /* FVco 696.192000 */
    { .frequency = 355622400,   .index = PLLVAL(118, 4, 1),     },  /* FVco 711.244800 */
    { .frequency = 360460800,   .index = PLLVAL(141, 5, 1),     },  /* FVco 720.921600 */
    { .frequency = 366206400,   .index = PLLVAL(165, 6, 1),     },  /* FVco 732.412800 */
    { .frequency = 372556800,   .index = PLLVAL(124, 4, 1),     },  /* FVco 745.113600 */
    { .frequency = 378201600,   .index = PLLVAL(126, 4, 1),     },  /* FVco 756.403200 */
    { .frequency = 384652800,   .index = PLLVAL(151, 5, 1),     },  /* FVco 769.305600 */
    { .frequency = 391608000,   .index = PLLVAL(177, 6, 1),     },  /* FVco 783.216000 */
    { .frequency = 396264960,   .index = PLLVAL(109, 3, 1),     },  /* FVco 792.529920 */
    { .frequency = 402192000,   .index = PLLVAL(87, 2, 1),  },  /* FVco 804.384000 */
};

static int s3c2440_plls169344_add(struct device *dev,
                  struct subsys_interface *sif)
{
    struct clk *xtal_clk;
    unsigned long xtal;

    xtal_clk = clk_get(NULL, "xtal");
    if (IS_ERR(xtal_clk))
        return PTR_ERR(xtal_clk);

    xtal = clk_get_rate(xtal_clk);
    clk_put(xtal_clk);

    if (xtal == 169344000) {
        printk(KERN_INFO "Using PLL table for 16.9344MHz crystal\n");
        return s3c_plltab_register(s3c2440_plls_169344,
                       ARRAY_SIZE(s3c2440_plls_169344));
    }

    return 0;
}

static struct subsys_interface s3c2440_plls169344_interface = {
    .name       = "s3c2440_plls169344",
    .subsys     = &s3c2440_subsys,
    .add_dev    = s3c2440_plls169344_add,
};

static int __init s3c2440_pll_16934400(void)
{
    return subsys_interface_register(&s3c2440_plls169344_interface);
}

arch_initcall(s3c2440_pll_16934400);

static struct subsys_interface s3c2442_plls169344_interface = {
    .name       = "s3c2442_plls169344",
    .subsys     = &s3c2442_subsys,
    .add_dev    = s3c2440_plls169344_add,
};

static int __init s3c2442_pll_16934400(void)
{
    return subsys_interface_register(&s3c2442_plls169344_interface);
}

arch_initcall(s3c2442_pll_16934400);