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da81593a5a
Some later changes in cpufreq core require these tables to be sorted based on ascending order of their frequencies. There was only one offender. Fix it and add comments over the arrays. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
100 lines
4.1 KiB
C
100 lines
4.1 KiB
C
/*
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* Copyright (c) 2006-2007 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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* Ben Dooks <ben@simtec.co.uk>
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* Vincent Sanders <vince@arm.linux.org.uk>
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*
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* S3C2440/S3C2442 CPU PLL tables (12MHz Crystal)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <plat/cpu.h>
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#include <plat/cpu-freq-core.h>
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/* This array should be sorted in ascending order of the frequencies */
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static struct cpufreq_frequency_table s3c2440_plls_12[] = {
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{ .frequency = 75000000, .driver_data = PLLVAL(0x75, 3, 3), }, /* FVco 600.000000 */
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{ .frequency = 80000000, .driver_data = PLLVAL(0x98, 4, 3), }, /* FVco 640.000000 */
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{ .frequency = 90000000, .driver_data = PLLVAL(0x70, 2, 3), }, /* FVco 720.000000 */
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{ .frequency = 100000000, .driver_data = PLLVAL(0x5c, 1, 3), }, /* FVco 800.000000 */
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{ .frequency = 110000000, .driver_data = PLLVAL(0x66, 1, 3), }, /* FVco 880.000000 */
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{ .frequency = 120000000, .driver_data = PLLVAL(0x70, 1, 3), }, /* FVco 960.000000 */
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{ .frequency = 150000000, .driver_data = PLLVAL(0x75, 3, 2), }, /* FVco 600.000000 */
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{ .frequency = 160000000, .driver_data = PLLVAL(0x98, 4, 2), }, /* FVco 640.000000 */
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{ .frequency = 170000000, .driver_data = PLLVAL(0x4d, 1, 2), }, /* FVco 680.000000 */
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{ .frequency = 180000000, .driver_data = PLLVAL(0x70, 2, 2), }, /* FVco 720.000000 */
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{ .frequency = 190000000, .driver_data = PLLVAL(0x57, 1, 2), }, /* FVco 760.000000 */
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{ .frequency = 200000000, .driver_data = PLLVAL(0x5c, 1, 2), }, /* FVco 800.000000 */
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{ .frequency = 210000000, .driver_data = PLLVAL(0x84, 2, 2), }, /* FVco 840.000000 */
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{ .frequency = 220000000, .driver_data = PLLVAL(0x66, 1, 2), }, /* FVco 880.000000 */
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{ .frequency = 230000000, .driver_data = PLLVAL(0x6b, 1, 2), }, /* FVco 920.000000 */
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{ .frequency = 240000000, .driver_data = PLLVAL(0x70, 1, 2), }, /* FVco 960.000000 */
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{ .frequency = 300000000, .driver_data = PLLVAL(0x75, 3, 1), }, /* FVco 600.000000 */
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{ .frequency = 310000000, .driver_data = PLLVAL(0x93, 4, 1), }, /* FVco 620.000000 */
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{ .frequency = 320000000, .driver_data = PLLVAL(0x98, 4, 1), }, /* FVco 640.000000 */
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{ .frequency = 330000000, .driver_data = PLLVAL(0x66, 2, 1), }, /* FVco 660.000000 */
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{ .frequency = 340000000, .driver_data = PLLVAL(0x4d, 1, 1), }, /* FVco 680.000000 */
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{ .frequency = 350000000, .driver_data = PLLVAL(0xa7, 4, 1), }, /* FVco 700.000000 */
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{ .frequency = 360000000, .driver_data = PLLVAL(0x70, 2, 1), }, /* FVco 720.000000 */
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{ .frequency = 370000000, .driver_data = PLLVAL(0xb1, 4, 1), }, /* FVco 740.000000 */
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{ .frequency = 380000000, .driver_data = PLLVAL(0x57, 1, 1), }, /* FVco 760.000000 */
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{ .frequency = 390000000, .driver_data = PLLVAL(0x7a, 2, 1), }, /* FVco 780.000000 */
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{ .frequency = 400000000, .driver_data = PLLVAL(0x5c, 1, 1), }, /* FVco 800.000000 */
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};
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static int s3c2440_plls12_add(struct device *dev, struct subsys_interface *sif)
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{
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struct clk *xtal_clk;
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unsigned long xtal;
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xtal_clk = clk_get(NULL, "xtal");
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if (IS_ERR(xtal_clk))
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return PTR_ERR(xtal_clk);
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xtal = clk_get_rate(xtal_clk);
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clk_put(xtal_clk);
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if (xtal == 12000000) {
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printk(KERN_INFO "Using PLL table for 12MHz crystal\n");
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return s3c_plltab_register(s3c2440_plls_12,
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ARRAY_SIZE(s3c2440_plls_12));
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}
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return 0;
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}
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static struct subsys_interface s3c2440_plls12_interface = {
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.name = "s3c2440_plls12",
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.subsys = &s3c2440_subsys,
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.add_dev = s3c2440_plls12_add,
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};
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static int __init s3c2440_pll_12mhz(void)
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{
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return subsys_interface_register(&s3c2440_plls12_interface);
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}
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arch_initcall(s3c2440_pll_12mhz);
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static struct subsys_interface s3c2442_plls12_interface = {
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.name = "s3c2442_plls12",
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.subsys = &s3c2442_subsys,
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.add_dev = s3c2440_plls12_add,
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};
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static int __init s3c2442_pll_12mhz(void)
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{
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return subsys_interface_register(&s3c2442_plls12_interface);
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}
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arch_initcall(s3c2442_pll_12mhz);
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