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ARM: S3C2440: CPUFREQ: Add PLL tables
Add PLL tables for the S3C2440. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Ben Dooks
Ben Dooks
parent
342e20f102
commit
78278d6a96
@ -42,6 +42,20 @@ config S3C2440_CPUFREQ
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help
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CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
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config S3C2440_PLL_12000000
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bool
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depends on S3C2440_CPUFREQ
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default y if CPU_FREQ_S3C24XX_PLL
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help
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PLL tables for S3C2440 or S3C2442 CPUs with 12MHz crystals.
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config S3C2440_PLL_16934400
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bool
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depends on S3C2440_CPUFREQ
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default y if CPU_FREQ_S3C24XX_PLL
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help
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PLL tables for S3C2440 or S3C2442 CPUs with 16.934MHz crystals.
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config S3C24XX_PWM
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bool "PWM device support"
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select HAVE_PWM
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@ -28,6 +28,9 @@ obj-$(CONFIG_CPU_S3C244X) += s3c244x.o
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obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o
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obj-$(CONFIG_CPU_S3C244X) += s3c244x-clock.o
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obj-$(CONFIG_S3C2440_CPUFREQ) += s3c2440-cpufreq.o
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obj-$(CONFIG_S3C2440_PLL_12000000) += s3c2440-pll-12000000.o
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obj-$(CONFIG_S3C2440_PLL_16934400) += s3c2440-pll-16934400.o
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obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o
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obj-$(CONFIG_PM) += pm.o
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obj-$(CONFIG_PM) += irq-pm.o
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97
arch/arm/plat-s3c24xx/s3c2440-pll-12000000.c
Normal file
97
arch/arm/plat-s3c24xx/s3c2440-pll-12000000.c
Normal file
@ -0,0 +1,97 @@
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/* arch/arm/plat-s3c24xx/s3c2440-pll-12000000.c
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*
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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/sysdev.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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static struct cpufreq_frequency_table s3c2440_plls_12[] __initdata = {
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{ .frequency = 75000000, .index = PLLVAL(0x75, 3, 3), }, /* FVco 600.000000 */
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{ .frequency = 80000000, .index = PLLVAL(0x98, 4, 3), }, /* FVco 640.000000 */
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{ .frequency = 90000000, .index = PLLVAL(0x70, 2, 3), }, /* FVco 720.000000 */
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{ .frequency = 100000000, .index = PLLVAL(0x5c, 1, 3), }, /* FVco 800.000000 */
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{ .frequency = 110000000, .index = PLLVAL(0x66, 1, 3), }, /* FVco 880.000000 */
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{ .frequency = 120000000, .index = PLLVAL(0x70, 1, 3), }, /* FVco 960.000000 */
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{ .frequency = 150000000, .index = PLLVAL(0x75, 3, 2), }, /* FVco 600.000000 */
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{ .frequency = 160000000, .index = PLLVAL(0x98, 4, 2), }, /* FVco 640.000000 */
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{ .frequency = 170000000, .index = PLLVAL(0x4d, 1, 2), }, /* FVco 680.000000 */
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{ .frequency = 180000000, .index = PLLVAL(0x70, 2, 2), }, /* FVco 720.000000 */
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{ .frequency = 190000000, .index = PLLVAL(0x57, 1, 2), }, /* FVco 760.000000 */
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{ .frequency = 200000000, .index = PLLVAL(0x5c, 1, 2), }, /* FVco 800.000000 */
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{ .frequency = 210000000, .index = PLLVAL(0x84, 2, 2), }, /* FVco 840.000000 */
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{ .frequency = 220000000, .index = PLLVAL(0x66, 1, 2), }, /* FVco 880.000000 */
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{ .frequency = 230000000, .index = PLLVAL(0x6b, 1, 2), }, /* FVco 920.000000 */
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{ .frequency = 240000000, .index = PLLVAL(0x70, 1, 2), }, /* FVco 960.000000 */
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{ .frequency = 300000000, .index = PLLVAL(0x75, 3, 1), }, /* FVco 600.000000 */
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{ .frequency = 310000000, .index = PLLVAL(0x93, 4, 1), }, /* FVco 620.000000 */
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{ .frequency = 320000000, .index = PLLVAL(0x98, 4, 1), }, /* FVco 640.000000 */
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{ .frequency = 330000000, .index = PLLVAL(0x66, 2, 1), }, /* FVco 660.000000 */
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{ .frequency = 340000000, .index = PLLVAL(0x4d, 1, 1), }, /* FVco 680.000000 */
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{ .frequency = 350000000, .index = PLLVAL(0xa7, 4, 1), }, /* FVco 700.000000 */
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{ .frequency = 360000000, .index = PLLVAL(0x70, 2, 1), }, /* FVco 720.000000 */
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{ .frequency = 370000000, .index = PLLVAL(0xb1, 4, 1), }, /* FVco 740.000000 */
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{ .frequency = 380000000, .index = PLLVAL(0x57, 1, 1), }, /* FVco 760.000000 */
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{ .frequency = 390000000, .index = PLLVAL(0x7a, 2, 1), }, /* FVco 780.000000 */
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{ .frequency = 400000000, .index = PLLVAL(0x5c, 1, 1), }, /* FVco 800.000000 */
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};
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static int s3c2440_plls12_add(struct sys_device *dev)
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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 sysdev_driver s3c2440_plls12_drv = {
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.add = 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 sysdev_driver_register(&s3c2440_sysclass, &s3c2440_plls12_drv);
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}
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arch_initcall(s3c2440_pll_12mhz);
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static struct sysdev_driver s3c2442_plls12_drv = {
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.add = 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 sysdev_driver_register(&s3c2442_sysclass, &s3c2442_plls12_drv);
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}
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arch_initcall(s3c2442_pll_12mhz);
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127
arch/arm/plat-s3c24xx/s3c2440-pll-16934400.c
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127
arch/arm/plat-s3c24xx/s3c2440-pll-16934400.c
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@ -0,0 +1,127 @@
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/* arch/arm/plat-s3c24xx/s3c2440-pll-16934400.c
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*
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* Copyright (c) 2006-2008 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 (16.93444MHz 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/sysdev.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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static struct cpufreq_frequency_table s3c2440_plls_169344[] __initdata = {
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{ .frequency = 78019200, .index = PLLVAL(121, 5, 3), }, /* FVco 624.153600 */
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{ .frequency = 84067200, .index = PLLVAL(131, 5, 3), }, /* FVco 672.537600 */
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{ .frequency = 90115200, .index = PLLVAL(141, 5, 3), }, /* FVco 720.921600 */
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{ .frequency = 96163200, .index = PLLVAL(151, 5, 3), }, /* FVco 769.305600 */
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{ .frequency = 102135600, .index = PLLVAL(185, 6, 3), }, /* FVco 817.084800 */
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{ .frequency = 108259200, .index = PLLVAL(171, 5, 3), }, /* FVco 866.073600 */
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{ .frequency = 114307200, .index = PLLVAL(127, 3, 3), }, /* FVco 914.457600 */
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{ .frequency = 120234240, .index = PLLVAL(134, 3, 3), }, /* FVco 961.873920 */
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{ .frequency = 126161280, .index = PLLVAL(141, 3, 3), }, /* FVco 1009.290240 */
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{ .frequency = 132088320, .index = PLLVAL(148, 3, 3), }, /* FVco 1056.706560 */
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{ .frequency = 138015360, .index = PLLVAL(155, 3, 3), }, /* FVco 1104.122880 */
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{ .frequency = 144789120, .index = PLLVAL(163, 3, 3), }, /* FVco 1158.312960 */
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{ .frequency = 150100363, .index = PLLVAL(187, 9, 2), }, /* FVco 600.401454 */
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{ .frequency = 156038400, .index = PLLVAL(121, 5, 2), }, /* FVco 624.153600 */
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{ .frequency = 162086400, .index = PLLVAL(126, 5, 2), }, /* FVco 648.345600 */
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{ .frequency = 168134400, .index = PLLVAL(131, 5, 2), }, /* FVco 672.537600 */
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{ .frequency = 174048000, .index = PLLVAL(177, 7, 2), }, /* FVco 696.192000 */
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{ .frequency = 180230400, .index = PLLVAL(141, 5, 2), }, /* FVco 720.921600 */
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{ .frequency = 186278400, .index = PLLVAL(124, 4, 2), }, /* FVco 745.113600 */
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{ .frequency = 192326400, .index = PLLVAL(151, 5, 2), }, /* FVco 769.305600 */
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{ .frequency = 198132480, .index = PLLVAL(109, 3, 2), }, /* FVco 792.529920 */
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{ .frequency = 204271200, .index = PLLVAL(185, 6, 2), }, /* FVco 817.084800 */
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{ .frequency = 210268800, .index = PLLVAL(141, 4, 2), }, /* FVco 841.075200 */
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{ .frequency = 216518400, .index = PLLVAL(171, 5, 2), }, /* FVco 866.073600 */
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{ .frequency = 222264000, .index = PLLVAL(97, 2, 2), }, /* FVco 889.056000 */
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{ .frequency = 228614400, .index = PLLVAL(127, 3, 2), }, /* FVco 914.457600 */
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{ .frequency = 234259200, .index = PLLVAL(158, 4, 2), }, /* FVco 937.036800 */
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{ .frequency = 240468480, .index = PLLVAL(134, 3, 2), }, /* FVco 961.873920 */
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{ .frequency = 246960000, .index = PLLVAL(167, 4, 2), }, /* FVco 987.840000 */
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{ .frequency = 252322560, .index = PLLVAL(141, 3, 2), }, /* FVco 1009.290240 */
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{ .frequency = 258249600, .index = PLLVAL(114, 2, 2), }, /* FVco 1032.998400 */
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{ .frequency = 264176640, .index = PLLVAL(148, 3, 2), }, /* FVco 1056.706560 */
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{ .frequency = 270950400, .index = PLLVAL(120, 2, 2), }, /* FVco 1083.801600 */
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{ .frequency = 276030720, .index = PLLVAL(155, 3, 2), }, /* FVco 1104.122880 */
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{ .frequency = 282240000, .index = PLLVAL(92, 1, 2), }, /* FVco 1128.960000 */
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{ .frequency = 289578240, .index = PLLVAL(163, 3, 2), }, /* FVco 1158.312960 */
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{ .frequency = 294235200, .index = PLLVAL(131, 2, 2), }, /* FVco 1176.940800 */
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{ .frequency = 300200727, .index = PLLVAL(187, 9, 1), }, /* FVco 600.401454 */
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{ .frequency = 306358690, .index = PLLVAL(191, 9, 1), }, /* FVco 612.717380 */
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{ .frequency = 312076800, .index = PLLVAL(121, 5, 1), }, /* FVco 624.153600 */
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{ .frequency = 318366720, .index = PLLVAL(86, 3, 1), }, /* FVco 636.733440 */
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{ .frequency = 324172800, .index = PLLVAL(126, 5, 1), }, /* FVco 648.345600 */
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{ .frequency = 330220800, .index = PLLVAL(109, 4, 1), }, /* FVco 660.441600 */
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{ .frequency = 336268800, .index = PLLVAL(131, 5, 1), }, /* FVco 672.537600 */
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{ .frequency = 342074880, .index = PLLVAL(93, 3, 1), }, /* FVco 684.149760 */
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{ .frequency = 348096000, .index = PLLVAL(177, 7, 1), }, /* FVco 696.192000 */
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{ .frequency = 355622400, .index = PLLVAL(118, 4, 1), }, /* FVco 711.244800 */
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{ .frequency = 360460800, .index = PLLVAL(141, 5, 1), }, /* FVco 720.921600 */
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{ .frequency = 366206400, .index = PLLVAL(165, 6, 1), }, /* FVco 732.412800 */
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{ .frequency = 372556800, .index = PLLVAL(124, 4, 1), }, /* FVco 745.113600 */
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{ .frequency = 378201600, .index = PLLVAL(126, 4, 1), }, /* FVco 756.403200 */
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{ .frequency = 384652800, .index = PLLVAL(151, 5, 1), }, /* FVco 769.305600 */
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{ .frequency = 391608000, .index = PLLVAL(177, 6, 1), }, /* FVco 783.216000 */
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{ .frequency = 396264960, .index = PLLVAL(109, 3, 1), }, /* FVco 792.529920 */
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{ .frequency = 402192000, .index = PLLVAL(87, 2, 1), }, /* FVco 804.384000 */
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};
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static int s3c2440_plls169344_add(struct sys_device *dev)
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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 == 169344000) {
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printk(KERN_INFO "Using PLL table for 16.9344MHz crystal\n");
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return s3c_plltab_register(s3c2440_plls_169344,
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ARRAY_SIZE(s3c2440_plls_169344));
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}
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return 0;
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}
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static struct sysdev_driver s3c2440_plls169344_drv = {
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.add = s3c2440_plls169344_add,
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};
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static int __init s3c2440_pll_16934400(void)
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{
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return sysdev_driver_register(&s3c2440_sysclass,
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&s3c2440_plls169344_drv);
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}
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arch_initcall(s3c2440_pll_16934400);
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static struct sysdev_driver s3c2442_plls169344_drv = {
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.add = s3c2440_plls169344_add,
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};
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static int __init s3c2442_pll_16934400(void)
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{
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return sysdev_driver_register(&s3c2442_sysclass,
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&s3c2442_plls169344_drv);
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}
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arch_initcall(s3c2442_pll_16934400);
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