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Diffstat (limited to 'arch/arm/mach-s3c24xx/cpufreq-s3c2410.c')
-rw-r--r--arch/arm/mach-s3c24xx/cpufreq-s3c2410.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c b/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c
deleted file mode 100644
index cfa0dd8723ec..000000000000
--- a/arch/arm/mach-s3c24xx/cpufreq-s3c2410.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Copyright (c) 2006-2008 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * 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 <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/cpufreq.h>
-#include <linux/device.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <mach/regs-clock.h>
-
-#include <plat/cpu.h>
-#include <plat/clock.h>
-#include <plat/cpu-freq-core.h>
-
-/* 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);