From 98713e401f5cfc2a6c7cdea71b8b71c462a195ce Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Mon, 21 Jan 2013 14:51:08 -0800 Subject: ARM: S3C24XX: Move mach-s3c2410/ cpufreq into mach-s3c24xx/ Basically, the cpufreq driver for s3c2410 should be implemented into drivers/cpufreq, but we don't need to keep the mach-s3c2410 directory. So this patch moves current cpufreq driver into mach-s3c24xx/. Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c2410/cpu-freq.c | 163 --------------------------------------- 1 file changed, 163 deletions(-) delete mode 100644 arch/arm/mach-s3c2410/cpu-freq.c (limited to 'arch/arm/mach-s3c2410/cpu-freq.c') diff --git a/arch/arm/mach-s3c2410/cpu-freq.c b/arch/arm/mach-s3c2410/cpu-freq.c deleted file mode 100644 index 5404535da1a5..000000000000 --- a/arch/arm/mach-s3c2410/cpu-freq.c +++ /dev/null @@ -1,163 +0,0 @@ -/* linux/arch/arm/mach-s3c2410/cpu-freq.c - * - * Copyright (c) 2006-2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * S3C2410 CPU Frequency scaling - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include - -#include -#include -#include - -/* Note, 2410A has an extra mode for 1:4:4 ratio, bit 2 of CLKDIV */ - -static void s3c2410_cpufreq_setdivs(struct s3c_cpufreq_config *cfg) -{ - u32 clkdiv = 0; - - if (cfg->divs.h_divisor == 2) - clkdiv |= S3C2410_CLKDIVN_HDIVN; - - if (cfg->divs.p_divisor != cfg->divs.h_divisor) - clkdiv |= S3C2410_CLKDIVN_PDIVN; - - __raw_writel(clkdiv, S3C2410_CLKDIVN); -} - -static int s3c2410_cpufreq_calcdivs(struct s3c_cpufreq_config *cfg) -{ - unsigned long hclk, fclk, pclk; - unsigned int hdiv, pdiv; - unsigned long hclk_max; - - fclk = cfg->freq.fclk; - hclk_max = cfg->max.hclk; - - cfg->freq.armclk = fclk; - - s3c_freq_dbg("%s: fclk is %lu, max hclk %lu\n", - __func__, fclk, hclk_max); - - hdiv = (fclk > cfg->max.hclk) ? 2 : 1; - hclk = fclk / hdiv; - - if (hclk > cfg->max.hclk) { - s3c_freq_dbg("%s: hclk too big\n", __func__); - return -EINVAL; - } - - pdiv = (hclk > cfg->max.pclk) ? 2 : 1; - pclk = hclk / pdiv; - - if (pclk > cfg->max.pclk) { - s3c_freq_dbg("%s: pclk too big\n", __func__); - return -EINVAL; - } - - pdiv *= hdiv; - - /* record the result */ - cfg->divs.p_divisor = pdiv; - cfg->divs.h_divisor = hdiv; - - return 0 ; -} - -static struct s3c_cpufreq_info s3c2410_cpufreq_info = { - .max = { - .fclk = 200000000, - .hclk = 100000000, - .pclk = 50000000, - }, - - /* transition latency is about 5ms worst-case, so - * set 10ms to be sure */ - .latency = 10000000, - - .locktime_m = 150, - .locktime_u = 150, - .locktime_bits = 12, - - .need_pll = 1, - - .name = "s3c2410", - .calc_iotiming = s3c2410_iotiming_calc, - .set_iotiming = s3c2410_iotiming_set, - .get_iotiming = s3c2410_iotiming_get, - .resume_clocks = s3c2410_setup_clocks, - - .set_fvco = s3c2410_set_fvco, - .set_refresh = s3c2410_cpufreq_setrefresh, - .set_divs = s3c2410_cpufreq_setdivs, - .calc_divs = s3c2410_cpufreq_calcdivs, - - .debug_io_show = s3c_cpufreq_debugfs_call(s3c2410_iotiming_debugfs), -}; - -static int s3c2410_cpufreq_add(struct device *dev, - struct subsys_interface *sif) -{ - return s3c_cpufreq_register(&s3c2410_cpufreq_info); -} - -static struct subsys_interface s3c2410_cpufreq_interface = { - .name = "s3c2410_cpufreq", - .subsys = &s3c2410_subsys, - .add_dev = s3c2410_cpufreq_add, -}; - -static int __init s3c2410_cpufreq_init(void) -{ - return subsys_interface_register(&s3c2410_cpufreq_interface); -} - -arch_initcall(s3c2410_cpufreq_init); - -static int s3c2410a_cpufreq_add(struct device *dev, - struct subsys_interface *sif) -{ - /* alter the maximum freq settings for S3C2410A. If a board knows - * it only has a maximum of 200, then it should register its own - * limits. */ - - s3c2410_cpufreq_info.max.fclk = 266000000; - s3c2410_cpufreq_info.max.hclk = 133000000; - s3c2410_cpufreq_info.max.pclk = 66500000; - s3c2410_cpufreq_info.name = "s3c2410a"; - - return s3c2410_cpufreq_add(dev, sif); -} - -static struct subsys_interface s3c2410a_cpufreq_interface = { - .name = "s3c2410a_cpufreq", - .subsys = &s3c2410a_subsys, - .add_dev = s3c2410a_cpufreq_add, -}; - -static int __init s3c2410a_cpufreq_init(void) -{ - return subsys_interface_register(&s3c2410a_cpufreq_interface); -} - -arch_initcall(s3c2410a_cpufreq_init); -- cgit v1.2.3-59-g8ed1b