diff options
author | Tomasz Figa <t.figa@samsung.com> | 2014-07-02 19:42:03 +0200 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-07-19 04:24:59 +0900 |
commit | 32726d2d5502302ba5753854f5f2f12ba22681c4 (patch) | |
tree | e432c5599c79ea3bdf7304477cdebb39e3a82c26 /arch/arm/plat-samsung | |
parent | f73d4cb681d2ede6d31974dde3ecce7a3ae8e8ff (diff) | |
download | op-kernel-dev-32726d2d5502302ba5753854f5f2f12ba22681c4.zip op-kernel-dev-32726d2d5502302ba5753854f5f2f12ba22681c4.tar.gz |
ARM: SAMSUNG: Remove legacy clock code
Since S5PV210 now has a complete clock driver using Common Clock
Framework, there is no reason to keep the old code. Remove it together
with the whole legacy Samsung-specific clock framework which no longer
has any users.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung')
-rw-r--r-- | arch/arm/plat-samsung/Kconfig | 18 | ||||
-rw-r--r-- | arch/arm/plat-samsung/Makefile | 5 | ||||
-rw-r--r-- | arch/arm/plat-samsung/clock-clksrc.c | 212 | ||||
-rw-r--r-- | arch/arm/plat-samsung/clock.c | 539 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/clock-clksrc.h | 83 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/clock.h | 152 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/cpu-freq-core.h | 3 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pll.h | 323 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/s5p-clock.h | 65 | ||||
-rw-r--r-- | arch/arm/plat-samsung/init.c | 1 | ||||
-rw-r--r-- | arch/arm/plat-samsung/s5p-clock.c | 294 |
11 files changed, 0 insertions, 1695 deletions
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 42f5d5b..f8185b5 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -23,7 +23,6 @@ config PLAT_S5P select PLAT_SAMSUNG select S3C_GPIO_TRACK select S5P_GPIO_DRVSTR - select SAMSUNG_CLKSRC if !COMMON_CLK help Base platform code for Samsung's S5P series SoC. @@ -65,23 +64,6 @@ config SAMSUNG_ATAGS if SAMSUNG_ATAGS -# clock options - -config SAMSUNG_CLOCK - bool - default y if !COMMON_CLK - -config SAMSUNG_CLKSRC - bool - help - Select the clock code for the clksrc implementation - used by newer systems such as the S3C64XX. - -config S5P_CLOCK - bool - help - Support common clock part for ARCH_S5P and ARCH_EXYNOS SoCs - # options for IRQ support config S5P_IRQ diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 5e5beaa..906f54b 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -16,11 +16,6 @@ obj- := obj-y += init.o cpu.o -obj-$(CONFIG_SAMSUNG_CLOCK) += clock.o - -obj-$(CONFIG_SAMSUNG_CLKSRC) += clock-clksrc.o -obj-$(CONFIG_S5P_CLOCK) += s5p-clock.o - obj-$(CONFIG_S5P_IRQ) += s5p-irq.o obj-$(CONFIG_S5P_EXT_INT) += s5p-irq-eint.o obj-$(CONFIG_S5P_GPIO_INT) += s5p-irq-gpioint.o diff --git a/arch/arm/plat-samsung/clock-clksrc.c b/arch/arm/plat-samsung/clock-clksrc.c deleted file mode 100644 index 786a410..0000000 --- a/arch/arm/plat-samsung/clock-clksrc.c +++ /dev/null @@ -1,212 +0,0 @@ -/* linux/arch/arm/plat-samsung/clock-clksrc.c - * - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * 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/kernel.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/io.h> - -#include <plat/clock.h> -#include <plat/clock-clksrc.h> -#include <plat/cpu-freq.h> - -static inline struct clksrc_clk *to_clksrc(struct clk *clk) -{ - return container_of(clk, struct clksrc_clk, clk); -} - -static inline u32 bit_mask(u32 shift, u32 nr_bits) -{ - u32 mask = 0xffffffff >> (32 - nr_bits); - - return mask << shift; -} - -static unsigned long s3c_getrate_clksrc(struct clk *clk) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - unsigned long rate = clk_get_rate(clk->parent); - u32 clkdiv = __raw_readl(sclk->reg_div.reg); - u32 mask = bit_mask(sclk->reg_div.shift, sclk->reg_div.size); - - clkdiv &= mask; - clkdiv >>= sclk->reg_div.shift; - clkdiv++; - - rate /= clkdiv; - return rate; -} - -static int s3c_setrate_clksrc(struct clk *clk, unsigned long rate) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - void __iomem *reg = sclk->reg_div.reg; - unsigned int div; - u32 mask = bit_mask(sclk->reg_div.shift, sclk->reg_div.size); - u32 val; - - rate = clk_round_rate(clk, rate); - div = clk_get_rate(clk->parent) / rate; - if (div > (1 << sclk->reg_div.size)) - return -EINVAL; - - val = __raw_readl(reg); - val &= ~mask; - val |= (div - 1) << sclk->reg_div.shift; - __raw_writel(val, reg); - - return 0; -} - -static int s3c_setparent_clksrc(struct clk *clk, struct clk *parent) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - struct clksrc_sources *srcs = sclk->sources; - u32 clksrc = __raw_readl(sclk->reg_src.reg); - u32 mask = bit_mask(sclk->reg_src.shift, sclk->reg_src.size); - int src_nr = -1; - int ptr; - - for (ptr = 0; ptr < srcs->nr_sources; ptr++) - if (srcs->sources[ptr] == parent) { - src_nr = ptr; - break; - } - - if (src_nr >= 0) { - clk->parent = parent; - - clksrc &= ~mask; - clksrc |= src_nr << sclk->reg_src.shift; - - __raw_writel(clksrc, sclk->reg_src.reg); - return 0; - } - - return -EINVAL; -} - -static unsigned long s3c_roundrate_clksrc(struct clk *clk, - unsigned long rate) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - unsigned long parent_rate = clk_get_rate(clk->parent); - int max_div = 1 << sclk->reg_div.size; - int div; - - if (rate >= parent_rate) - rate = parent_rate; - else { - div = parent_rate / rate; - if (parent_rate % rate) - div++; - - if (div == 0) - div = 1; - if (div > max_div) - div = max_div; - - rate = parent_rate / div; - } - - return rate; -} - -/* Clock initialisation code */ - -void __init_or_cpufreq s3c_set_clksrc(struct clksrc_clk *clk, bool announce) -{ - struct clksrc_sources *srcs = clk->sources; - u32 mask = bit_mask(clk->reg_src.shift, clk->reg_src.size); - u32 clksrc; - - if (!clk->reg_src.reg) { - if (!clk->clk.parent) - printk(KERN_ERR "%s: no parent clock specified\n", - clk->clk.name); - return; - } - - clksrc = __raw_readl(clk->reg_src.reg); - clksrc &= mask; - clksrc >>= clk->reg_src.shift; - - if (clksrc > srcs->nr_sources || !srcs->sources[clksrc]) { - printk(KERN_ERR "%s: bad source %d\n", - clk->clk.name, clksrc); - return; - } - - clk->clk.parent = srcs->sources[clksrc]; - - if (announce) - printk(KERN_INFO "%s: source is %s (%d), rate is %ld\n", - clk->clk.name, clk->clk.parent->name, clksrc, - clk_get_rate(&clk->clk)); -} - -static struct clk_ops clksrc_ops = { - .set_parent = s3c_setparent_clksrc, - .get_rate = s3c_getrate_clksrc, - .set_rate = s3c_setrate_clksrc, - .round_rate = s3c_roundrate_clksrc, -}; - -static struct clk_ops clksrc_ops_nodiv = { - .set_parent = s3c_setparent_clksrc, -}; - -static struct clk_ops clksrc_ops_nosrc = { - .get_rate = s3c_getrate_clksrc, - .set_rate = s3c_setrate_clksrc, - .round_rate = s3c_roundrate_clksrc, -}; - -void __init s3c_register_clksrc(struct clksrc_clk *clksrc, int size) -{ - int ret; - - for (; size > 0; size--, clksrc++) { - if (!clksrc->reg_div.reg && !clksrc->reg_src.reg) - printk(KERN_ERR "%s: clock %s has no registers set\n", - __func__, clksrc->clk.name); - - /* fill in the default functions */ - - if (!clksrc->clk.ops) { - if (!clksrc->reg_div.reg) - clksrc->clk.ops = &clksrc_ops_nodiv; - else if (!clksrc->reg_src.reg) - clksrc->clk.ops = &clksrc_ops_nosrc; - else - clksrc->clk.ops = &clksrc_ops; - } - - /* setup the clocksource, but do not announce it - * as it may be re-set by the setup routines - * called after the rest of the clocks have been - * registered - */ - s3c_set_clksrc(clksrc, false); - - ret = s3c24xx_register_clock(&clksrc->clk); - - if (ret < 0) { - printk(KERN_ERR "%s: failed to register %s (%d)\n", - __func__, clksrc->clk.name, ret); - } - } -} diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c deleted file mode 100644 index d103ac1..0000000 --- a/arch/arm/plat-samsung/clock.c +++ /dev/null @@ -1,539 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/clock.c - * - * Copyright 2004-2005 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * S3C24XX Core clock control support - * - * Based on, and code from linux/arch/arm/mach-versatile/clock.c - ** - ** Copyright (C) 2004 ARM Limited. - ** Written by Deep Blue Solutions Limited. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/platform_device.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/clk.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#if defined(CONFIG_DEBUG_FS) -#include <linux/debugfs.h> -#endif - -#include <asm/irq.h> - -#include <plat/cpu-freq.h> - -#include <plat/clock.h> -#include <plat/cpu.h> - -#include <linux/serial_core.h> -#include <linux/serial_s3c.h> /* for s3c24xx_uart_devs */ - -/* clock information */ - -static LIST_HEAD(clocks); - -/* We originally used an mutex here, but some contexts (see resume) - * are calling functions such as clk_set_parent() with IRQs disabled - * causing an BUG to be triggered. - */ -DEFINE_SPINLOCK(clocks_lock); - -/* Global watchdog clock used by arch_wtd_reset() callback */ -struct clk *s3c2410_wdtclk; -static int __init s3c_wdt_reset_init(void) -{ - s3c2410_wdtclk = clk_get(NULL, "watchdog"); - if (IS_ERR(s3c2410_wdtclk)) - printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); - return 0; -} -arch_initcall(s3c_wdt_reset_init); - -/* enable and disable calls for use with the clk struct */ - -static int clk_null_enable(struct clk *clk, int enable) -{ - return 0; -} - -int clk_enable(struct clk *clk) -{ - unsigned long flags; - - if (IS_ERR(clk) || clk == NULL) - return -EINVAL; - - clk_enable(clk->parent); - - spin_lock_irqsave(&clocks_lock, flags); - - if ((clk->usage++) == 0) - (clk->enable)(clk, 1); - - spin_unlock_irqrestore(&clocks_lock, flags); - return 0; -} - -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - if (IS_ERR(clk) || clk == NULL) - return; - - spin_lock_irqsave(&clocks_lock, flags); - - if ((--clk->usage) == 0) - (clk->enable)(clk, 0); - - spin_unlock_irqrestore(&clocks_lock, flags); - clk_disable(clk->parent); -} - - -unsigned long clk_get_rate(struct clk *clk) -{ - if (IS_ERR_OR_NULL(clk)) - return 0; - - if (clk->rate != 0) - return clk->rate; - - if (clk->ops != NULL && clk->ops->get_rate != NULL) - return (clk->ops->get_rate)(clk); - - if (clk->parent != NULL) - return clk_get_rate(clk->parent); - - return clk->rate; -} - -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - if (!IS_ERR_OR_NULL(clk) && clk->ops && clk->ops->round_rate) - return (clk->ops->round_rate)(clk, rate); - - return rate; -} - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned long flags; - int ret; - - if (IS_ERR_OR_NULL(clk)) - return -EINVAL; - - /* We do not default just do a clk->rate = rate as - * the clock may have been made this way by choice. - */ - - WARN_ON(clk->ops == NULL); - WARN_ON(clk->ops && clk->ops->set_rate == NULL); - - if (clk->ops == NULL || clk->ops->set_rate == NULL) - return -EINVAL; - - spin_lock_irqsave(&clocks_lock, flags); - ret = (clk->ops->set_rate)(clk, rate); - spin_unlock_irqrestore(&clocks_lock, flags); - - return ret; -} - -struct clk *clk_get_parent(struct clk *clk) -{ - return clk->parent; -} - -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - unsigned long flags; - int ret = 0; - - if (IS_ERR_OR_NULL(clk) || IS_ERR_OR_NULL(parent)) - return -EINVAL; - - spin_lock_irqsave(&clocks_lock, flags); - - if (clk->ops && clk->ops->set_parent) - ret = (clk->ops->set_parent)(clk, parent); - - spin_unlock_irqrestore(&clocks_lock, flags); - - return ret; -} - -EXPORT_SYMBOL(clk_enable); -EXPORT_SYMBOL(clk_disable); -EXPORT_SYMBOL(clk_get_rate); -EXPORT_SYMBOL(clk_round_rate); -EXPORT_SYMBOL(clk_set_rate); -EXPORT_SYMBOL(clk_get_parent); -EXPORT_SYMBOL(clk_set_parent); - -/* base clocks */ - -int clk_default_setrate(struct clk *clk, unsigned long rate) -{ - clk->rate = rate; - return 0; -} - -struct clk_ops clk_ops_def_setrate = { - .set_rate = clk_default_setrate, -}; - -struct clk clk_xtal = { - .name = "xtal", - .rate = 0, - .parent = NULL, - .ctrlbit = 0, -}; - -struct clk clk_ext = { - .name = "ext", -}; - -struct clk clk_epll = { - .name = "epll", -}; - -struct clk clk_mpll = { - .name = "mpll", - .ops = &clk_ops_def_setrate, -}; - -struct clk clk_upll = { - .name = "upll", - .parent = NULL, - .ctrlbit = 0, -}; - -struct clk clk_f = { - .name = "fclk", - .rate = 0, - .parent = &clk_mpll, - .ctrlbit = 0, -}; - -struct clk clk_h = { - .name = "hclk", - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .ops = &clk_ops_def_setrate, -}; - -struct clk clk_p = { - .name = "pclk", - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .ops = &clk_ops_def_setrate, -}; - -struct clk clk_usb_bus = { - .name = "usb-bus", - .rate = 0, - .parent = &clk_upll, -}; - - -struct clk s3c24xx_uclk = { - .name = "uclk", -}; - -/* initialise the clock system */ - -/** - * s3c24xx_register_clock() - register a clock - * @clk: The clock to register - * - * Add the specified clock to the list of clocks known by the system. - */ -int s3c24xx_register_clock(struct clk *clk) -{ - if (clk->enable == NULL) - clk->enable = clk_null_enable; - - /* fill up the clk_lookup structure and register it*/ - clk->lookup.dev_id = clk->devname; - clk->lookup.con_id = clk->name; - clk->lookup.clk = clk; - clkdev_add(&clk->lookup); - - return 0; -} - -/** - * s3c24xx_register_clocks() - register an array of clock pointers - * @clks: Pointer to an array of struct clk pointers - * @nr_clks: The number of clocks in the @clks array. - * - * Call s3c24xx_register_clock() for all the clock pointers contained - * in the @clks list. Returns the number of failures. - */ -int s3c24xx_register_clocks(struct clk **clks, int nr_clks) -{ - int fails = 0; - - for (; nr_clks > 0; nr_clks--, clks++) { - if (s3c24xx_register_clock(*clks) < 0) { - struct clk *clk = *clks; - printk(KERN_ERR "%s: failed to register %p: %s\n", - __func__, clk, clk->name); - fails++; - } - } - - return fails; -} - -/** - * s3c_register_clocks() - register an array of clocks - * @clkp: Pointer to the first clock in the array. - * @nr_clks: Number of clocks to register. - * - * Call s3c24xx_register_clock() on the @clkp array given, printing an - * error if it fails to register the clock (unlikely). - */ -void __init s3c_register_clocks(struct clk *clkp, int nr_clks) -{ - int ret; - - for (; nr_clks > 0; nr_clks--, clkp++) { - ret = s3c24xx_register_clock(clkp); - - if (ret < 0) { - printk(KERN_ERR "Failed to register clock %s (%d)\n", - clkp->name, ret); - } - } -} - -/** - * s3c_disable_clocks() - disable an array of clocks - * @clkp: Pointer to the first clock in the array. - * @nr_clks: Number of clocks to register. - * - * for internal use only at initialisation time. disable the clocks in the - * @clkp array. - */ - -void __init s3c_disable_clocks(struct clk *clkp, int nr_clks) -{ - for (; nr_clks > 0; nr_clks--, clkp++) - (clkp->enable)(clkp, 0); -} - -/* initialise all the clocks */ - -int __init s3c24xx_register_baseclocks(unsigned long xtal) -{ - printk(KERN_INFO "S3C24XX Clocks, Copyright 2004 Simtec Electronics\n"); - - clk_xtal.rate = xtal; - - /* register our clocks */ - - if (s3c24xx_register_clock(&clk_xtal) < 0) - printk(KERN_ERR "failed to register master xtal\n"); - - if (s3c24xx_register_clock(&clk_mpll) < 0) - printk(KERN_ERR "failed to register mpll clock\n"); - - if (s3c24xx_register_clock(&clk_upll) < 0) - printk(KERN_ERR "failed to register upll clock\n"); - - if (s3c24xx_register_clock(&clk_f) < 0) - printk(KERN_ERR "failed to register cpu fclk\n"); - - if (s3c24xx_register_clock(&clk_h) < 0) - printk(KERN_ERR "failed to register cpu hclk\n"); - - if (s3c24xx_register_clock(&clk_p) < 0) - printk(KERN_ERR "failed to register cpu pclk\n"); - - return 0; -} - -#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) -/* debugfs support to trace clock tree hierarchy and attributes */ - -static struct dentry *clk_debugfs_root; - -static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level) -{ - struct clk *child; - const char *state; - char buf[255] = { 0 }; - int n = 0; - - if (c->name) - n = snprintf(buf, sizeof(buf) - 1, "%s", c->name); - - if (c->devname) - n += snprintf(buf + n, sizeof(buf) - 1 - n, ":%s", c->devname); - - state = (c->usage > 0) ? "on" : "off"; - - seq_printf(s, "%*s%-*s %-6s %-3d %-10lu\n", - level * 3 + 1, "", - 50 - level * 3, buf, - state, c->usage, clk_get_rate(c)); - - list_for_each_entry(child, &clocks, list) { - if (child->parent != c) - continue; - - clock_tree_show_one(s, child, level + 1); - } -} - -static int clock_tree_show(struct seq_file *s, void *data) -{ - struct clk *c; - unsigned long flags; - - seq_printf(s, " clock state ref rate\n"); - seq_printf(s, "----------------------------------------------------\n"); - - spin_lock_irqsave(&clocks_lock, flags); - - list_for_each_entry(c, &clocks, list) - if (c->parent == NULL) - clock_tree_show_one(s, c, 0); - - spin_unlock_irqrestore(&clocks_lock, flags); - return 0; -} - -static int clock_tree_open(struct inode *inode, struct file *file) -{ - return single_open(file, clock_tree_show, inode->i_private); -} - -static const struct file_operations clock_tree_fops = { - .open = clock_tree_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int clock_rate_show(void *data, u64 *val) -{ - struct clk *c = data; - *val = clk_get_rate(c); - return 0; -} -DEFINE_SIMPLE_ATTRIBUTE(clock_rate_fops, clock_rate_show, NULL, "%llu\n"); - -static int clk_debugfs_register_one(struct clk *c) -{ - int err; - struct dentry *d; - struct clk *pa = c->parent; - char s[255]; - char *p = s; - - p += sprintf(p, "%s", c->devname); - - d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root); - if (!d) - return -ENOMEM; - - c->dent = d; - - d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usage); - if (!d) { - err = -ENOMEM; - goto err_out; - } - - d = debugfs_create_file("rate", S_IRUGO, c->dent, c, &clock_rate_fops); - if (!d) { - err = -ENOMEM; - goto err_out; - } - return 0; - -err_out: - debugfs_remove_recursive(c->dent); - return err; -} - -static int clk_debugfs_register(struct clk *c) -{ - int err; - struct clk *pa = c->parent; - - if (pa && !pa->dent) { - err = clk_debugfs_register(pa); - if (err) - return err; - } - - if (!c->dent) { - err = clk_debugfs_register_one(c); - if (err) - return err; - } - return 0; -} - -static int __init clk_debugfs_init(void) -{ - struct clk *c; - struct dentry *d; - int err = -ENOMEM; - - d = debugfs_create_dir("clock", NULL); - if (!d) - return -ENOMEM; - clk_debugfs_root = d; - - d = debugfs_create_file("clock_tree", S_IRUGO, clk_debugfs_root, NULL, - &clock_tree_fops); - if (!d) - goto err_out; - - list_for_each_entry(c, &clocks, list) { - err = clk_debugfs_register(c); - if (err) - goto err_out; - } - return 0; - -err_out: - debugfs_remove_recursive(clk_debugfs_root); - return err; -} -late_initcall(clk_debugfs_init); - -#endif /* defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) */ diff --git a/arch/arm/plat-samsung/include/plat/clock-clksrc.h b/arch/arm/plat-samsung/include/plat/clock-clksrc.h deleted file mode 100644 index 50a8ca7..0000000 --- a/arch/arm/plat-samsung/include/plat/clock-clksrc.h +++ /dev/null @@ -1,83 +0,0 @@ -/* linux/arch/arm/plat-samsung/include/plat/clock-clksrc.h - * - * Parts taken from arch/arm/plat-s3c64xx/clock.c - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * Copyright 2009 Ben Dooks <ben-linux@fluff.org> - * Copyright 2009 Harald Welte - * - * 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. -*/ - -/** - * struct clksrc_sources - list of sources for a given clock - * @sources: array of pointers to clocks - * @nr_sources: The size of @sources - */ -struct clksrc_sources { - unsigned int nr_sources; - struct clk **sources; -}; - -/** - * struct clksrc_reg - register definition for clock control bits - * @reg: pointer to the register in virtual memory. - * @shift: the shift in bits to where the bitfield is. - * @size: the size in bits of the bitfield. - * - * This specifies the size and position of the bits we are interested - * in within the register specified by @reg. - */ -struct clksrc_reg { - void __iomem *reg; - unsigned short shift; - unsigned short size; -}; - -/** - * struct clksrc_clk - class of clock for newer style samsung devices. - * @clk: the standard clock representation - * @sources: the sources for this clock - * @reg_src: the register definition for selecting the clock's source - * @reg_div: the register definition for the clock's output divisor - * - * This clock implements the features required by the newer SoCs where - * the standard clock block provides an input mux and a post-mux divisor - * to provide the periperhal's clock. - * - * The array of @sources provides the mapping of mux position to the - * clock, and @reg_src shows the code where to modify to change the mux - * position. The @reg_div defines how to change the divider settings on - * the output. - */ -struct clksrc_clk { - struct clk clk; - struct clksrc_sources *sources; - - struct clksrc_reg reg_src; - struct clksrc_reg reg_div; -}; - -/** - * s3c_set_clksrc() - setup the clock from the register settings - * @clk: The clock to setup. - * @announce: true to announce the setting to printk(). - * - * Setup the clock from the current register settings, for when the - * kernel boots or if it is resuming from a possibly unknown state. - */ -extern void s3c_set_clksrc(struct clksrc_clk *clk, bool announce); - -/** - * s3c_register_clksrc() register clocks from an array of clksrc clocks - * @srcs: The array of clocks to register - * @size: The size of the @srcs array. - * - * Initialise and register the array of clocks described by @srcs. - */ -extern void s3c_register_clksrc(struct clksrc_clk *srcs, int size); diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h deleted file mode 100644 index 63239f4..0000000 --- a/arch/arm/plat-samsung/include/plat/clock.h +++ /dev/null @@ -1,152 +0,0 @@ -/* linux/arch/arm/plat-s3c/include/plat/clock.h - * - * Copyright (c) 2004-2005 Simtec Electronics - * http://www.simtec.co.uk/products/SWLINUX/ - * Written by Ben Dooks, <ben@simtec.co.uk> - * - * 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. -*/ - -#ifndef __ASM_PLAT_CLOCK_H -#define __ASM_PLAT_CLOCK_H __FILE__ - -#include <linux/spinlock.h> -#include <linux/clkdev.h> - -struct clk; - -/** - * struct clk_ops - standard clock operations - * @set_rate: set the clock rate, see clk_set_rate(). - * @get_rate: get the clock rate, see clk_get_rate(). - * @round_rate: round a given clock rate, see clk_round_rate(). - * @set_parent: set the clock's parent, see clk_set_parent(). - * - * Group the common clock implementations together so that we - * don't have to keep setting the same fields again. We leave - * enable in struct clk. - * - * Adding an extra layer of indirection into the process should - * not be a problem as it is unlikely these operations are going - * to need to be called quickly. - */ -struct clk_ops { - int (*set_rate)(struct clk *c, unsigned long rate); - unsigned long (*get_rate)(struct clk *c); - unsigned long (*round_rate)(struct clk *c, unsigned long rate); - int (*set_parent)(struct clk *c, struct clk *parent); -}; - -struct clk { - struct list_head list; - struct module *owner; - struct clk *parent; - const char *name; - const char *devname; - int id; - int usage; - unsigned long rate; - unsigned long ctrlbit; - - struct clk_ops *ops; - int (*enable)(struct clk *, int enable); - struct clk_lookup lookup; -#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) - struct dentry *dent; /* For visible tree hierarchy */ -#endif -}; - -/* other clocks which may be registered by board support */ - -extern struct clk s3c24xx_dclk0; -extern struct clk s3c24xx_dclk1; -extern struct clk s3c24xx_clkout0; -extern struct clk s3c24xx_clkout1; -extern struct clk s3c24xx_uclk; - -extern struct clk clk_usb_bus; - -/* core clock support */ - -extern struct clk clk_f; -extern struct clk clk_h; -extern struct clk clk_p; -extern struct clk clk_mpll; -extern struct clk clk_upll; -extern struct clk clk_epll; -extern struct clk clk_xtal; -extern struct clk clk_ext; - -/* S3C2443/S3C2416 specific clocks */ -extern struct clksrc_clk clk_epllref; -extern struct clksrc_clk clk_esysclk; - -/* S3C24XX UART clocks */ -extern struct clk s3c24xx_clk_uart0; -extern struct clk s3c24xx_clk_uart1; -extern struct clk s3c24xx_clk_uart2; - -/* S3C64XX specific clocks */ -extern struct clk clk_h2; -extern struct clk clk_27m; -extern struct clk clk_48m; -extern struct clk clk_xusbxti; - -extern int clk_default_setrate(struct clk *clk, unsigned long rate); -extern struct clk_ops clk_ops_def_setrate; - -/* exports for arch/arm/mach-s3c2410 - * - * Please DO NOT use these outside of arch/arm/mach-s3c2410 -*/ - -extern spinlock_t clocks_lock; - -extern int s3c2410_clkcon_enable(struct clk *clk, int enable); - -extern int s3c24xx_register_clock(struct clk *clk); -extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks); - -extern void s3c_register_clocks(struct clk *clk, int nr_clks); -extern void s3c_disable_clocks(struct clk *clkp, int nr_clks); - -extern int s3c24xx_register_baseclocks(unsigned long xtal); - -extern void s5p_register_clocks(unsigned long xtal_freq); - -extern void s3c24xx_setup_clocks(unsigned long fclk, - unsigned long hclk, - unsigned long pclk); - -extern void s3c2410_setup_clocks(void); -extern void s3c2412_setup_clocks(void); -extern void s3c244x_setup_clocks(void); - -/* S3C2410 specific clock functions */ - -extern int s3c2410_baseclk_add(void); - -/* S3C2443/S3C2416 specific clock functions */ - -typedef unsigned int (*pll_fn)(unsigned int reg, unsigned int base); - -extern void s3c2443_common_setup_clocks(pll_fn get_mpll); -extern void s3c2443_common_init_clocks(int xtal, pll_fn get_mpll, - unsigned int *divs, int nr_divs, - int divmask); - -extern int s3c2443_clkcon_enable_h(struct clk *clk, int enable); -extern int s3c2443_clkcon_enable_p(struct clk *clk, int enable); -extern int s3c2443_clkcon_enable_s(struct clk *clk, int enable); - -/* S3C64XX specific functions and clocks */ - -extern int s3c64xx_sclk_ctrl(struct clk *clk, int enable); - -/* Global watchdog clock used by arch_wtd_reset() callback */ - -extern struct clk *s3c2410_wdtclk; - -#endif /* __ASM_PLAT_CLOCK_H */ diff --git a/arch/arm/plat-samsung/include/plat/cpu-freq-core.h b/arch/arm/plat-samsung/include/plat/cpu-freq-core.h index 72d4178..317c523 100644 --- a/arch/arm/plat-samsung/include/plat/cpu-freq-core.h +++ b/arch/arm/plat-samsung/include/plat/cpu-freq-core.h @@ -140,7 +140,6 @@ struct s3c_cpufreq_config { * any frequency changes. This is really only need by devices like the * S3C2410 where there is no or limited divider between the PLL and the * ARMCLK. - * @resume_clocks: Update the clocks on resume. * @get_iotiming: Get the current IO timing data, mainly for use at start. * @set_iotiming: Update the IO timings from the cached copies calculated * from the @calc_iotiming entry when changing the frequency. @@ -169,8 +168,6 @@ struct s3c_cpufreq_info { /* driver routines */ - void (*resume_clocks)(void); - int (*get_iotiming)(struct s3c_cpufreq_config *cfg, struct s3c_iotimings *timings); diff --git a/arch/arm/plat-samsung/include/plat/pll.h b/arch/arm/plat-samsung/include/plat/pll.h deleted file mode 100644 index 357af7c..0000000 --- a/arch/arm/plat-samsung/include/plat/pll.h +++ /dev/null @@ -1,323 +0,0 @@ -/* linux/arch/arm/plat-samsung/include/plat/pll.h - * - * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * Samsung PLL codes - * - * 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 <asm/div64.h> - -#define S3C24XX_PLL_MDIV_MASK (0xFF) -#define S3C24XX_PLL_PDIV_MASK (0x1F) -#define S3C24XX_PLL_SDIV_MASK (0x3) -#define S3C24XX_PLL_MDIV_SHIFT (12) -#define S3C24XX_PLL_PDIV_SHIFT (4) -#define S3C24XX_PLL_SDIV_SHIFT (0) - -static inline unsigned int s3c24xx_get_pll(unsigned int pllval, - unsigned int baseclk) -{ - unsigned int mdiv, pdiv, sdiv; - uint64_t fvco; - - mdiv = (pllval >> S3C24XX_PLL_MDIV_SHIFT) & S3C24XX_PLL_MDIV_MASK; - pdiv = (pllval >> S3C24XX_PLL_PDIV_SHIFT) & S3C24XX_PLL_PDIV_MASK; - sdiv = (pllval >> S3C24XX_PLL_SDIV_SHIFT) & S3C24XX_PLL_SDIV_MASK; - - fvco = (uint64_t)baseclk * (mdiv + 8); - do_div(fvco, (pdiv + 2) << sdiv); - - return (unsigned int)fvco; -} - -#define S3C2416_PLL_MDIV_MASK (0x3FF) -#define S3C2416_PLL_PDIV_MASK (0x3F) -#define S3C2416_PLL_SDIV_MASK (0x7) -#define S3C2416_PLL_MDIV_SHIFT (14) -#define S3C2416_PLL_PDIV_SHIFT (5) -#define S3C2416_PLL_SDIV_SHIFT (0) - -static inline unsigned int s3c2416_get_pll(unsigned int pllval, - unsigned int baseclk) -{ - unsigned int mdiv, pdiv, sdiv; - uint64_t fvco; - - mdiv = (pllval >> S3C2416_PLL_MDIV_SHIFT) & S3C2416_PLL_MDIV_MASK; - pdiv = (pllval >> S3C2416_PLL_PDIV_SHIFT) & S3C2416_PLL_PDIV_MASK; - sdiv = (pllval >> S3C2416_PLL_SDIV_SHIFT) & S3C2416_PLL_SDIV_MASK; - - fvco = (uint64_t)baseclk * mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned int)fvco; -} - -#define S3C6400_PLL_MDIV_MASK (0x3FF) -#define S3C6400_PLL_PDIV_MASK (0x3F) -#define S3C6400_PLL_SDIV_MASK (0x7) -#define S3C6400_PLL_MDIV_SHIFT (16) -#define S3C6400_PLL_PDIV_SHIFT (8) -#define S3C6400_PLL_SDIV_SHIFT (0) - -static inline unsigned long s3c6400_get_pll(unsigned long baseclk, - u32 pllcon) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pllcon >> S3C6400_PLL_MDIV_SHIFT) & S3C6400_PLL_MDIV_MASK; - pdiv = (pllcon >> S3C6400_PLL_PDIV_SHIFT) & S3C6400_PLL_PDIV_MASK; - sdiv = (pllcon >> S3C6400_PLL_SDIV_SHIFT) & S3C6400_PLL_SDIV_MASK; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} - -#define PLL6553X_MDIV_MASK (0x7F) -#define PLL6553X_PDIV_MASK (0x1F) -#define PLL6553X_SDIV_MASK (0x3) -#define PLL6553X_KDIV_MASK (0xFFFF) -#define PLL6553X_MDIV_SHIFT (16) -#define PLL6553X_PDIV_SHIFT (8) -#define PLL6553X_SDIV_SHIFT (0) - -static inline unsigned long s3c_get_pll6553x(unsigned long baseclk, - u32 pll_con0, u32 pll_con1) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con0 >> PLL6553X_MDIV_SHIFT) & PLL6553X_MDIV_MASK; - pdiv = (pll_con0 >> PLL6553X_PDIV_SHIFT) & PLL6553X_PDIV_MASK; - sdiv = (pll_con0 >> PLL6553X_SDIV_SHIFT) & PLL6553X_SDIV_MASK; - kdiv = pll_con1 & PLL6553X_KDIV_MASK; - - /* - * We need to multiple baseclk by mdiv (the integer part) and kdiv - * which is in 2^16ths, so shift mdiv up (does not overflow) and - * add kdiv before multiplying. The use of tmp is to avoid any - * overflows before shifting bac down into result when multipling - * by the mdiv and kdiv pair. - */ - - tmp = baseclk; - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - - return result; -} - -#define PLL35XX_MDIV_MASK (0x3FF) -#define PLL35XX_PDIV_MASK (0x3F) -#define PLL35XX_SDIV_MASK (0x7) -#define PLL35XX_MDIV_SHIFT (16) -#define PLL35XX_PDIV_SHIFT (8) -#define PLL35XX_SDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll35xx(unsigned long baseclk, u32 pll_con) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK; - pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK; - sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} - -#define PLL36XX_KDIV_MASK (0xFFFF) -#define PLL36XX_MDIV_MASK (0x1FF) -#define PLL36XX_PDIV_MASK (0x3F) -#define PLL36XX_SDIV_MASK (0x7) -#define PLL36XX_MDIV_SHIFT (16) -#define PLL36XX_PDIV_SHIFT (8) -#define PLL36XX_SDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll36xx(unsigned long baseclk, - u32 pll_con0, u32 pll_con1) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK; - pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK; - sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK; - kdiv = pll_con1 & PLL36XX_KDIV_MASK; - - tmp = baseclk; - - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - - return result; -} - -#define PLL45XX_MDIV_MASK (0x3FF) -#define PLL45XX_PDIV_MASK (0x3F) -#define PLL45XX_SDIV_MASK (0x7) -#define PLL45XX_MDIV_SHIFT (16) -#define PLL45XX_PDIV_SHIFT (8) -#define PLL45XX_SDIV_SHIFT (0) - -enum pll45xx_type_t { - pll_4500, - pll_4502, - pll_4508 -}; - -static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con, - enum pll45xx_type_t pll_type) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK; - pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK; - sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK; - - if (pll_type == pll_4508) - sdiv = sdiv - 1; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} - -/* CON0 bit-fields */ -#define PLL46XX_MDIV_MASK (0x1FF) -#define PLL46XX_PDIV_MASK (0x3F) -#define PLL46XX_SDIV_MASK (0x7) -#define PLL46XX_LOCKED_SHIFT (29) -#define PLL46XX_MDIV_SHIFT (16) -#define PLL46XX_PDIV_SHIFT (8) -#define PLL46XX_SDIV_SHIFT (0) - -/* CON1 bit-fields */ -#define PLL46XX_MRR_MASK (0x1F) -#define PLL46XX_MFR_MASK (0x3F) -#define PLL46XX_KDIV_MASK (0xFFFF) -#define PLL4650C_KDIV_MASK (0xFFF) -#define PLL46XX_MRR_SHIFT (24) -#define PLL46XX_MFR_SHIFT (16) -#define PLL46XX_KDIV_SHIFT (0) - -enum pll46xx_type_t { - pll_4600, - pll_4650, - pll_4650c, -}; - -static inline unsigned long s5p_get_pll46xx(unsigned long baseclk, - u32 pll_con0, u32 pll_con1, - enum pll46xx_type_t pll_type) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK; - pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK; - sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK; - kdiv = pll_con1 & PLL46XX_KDIV_MASK; - - if (pll_type == pll_4650c) - kdiv = pll_con1 & PLL4650C_KDIV_MASK; - else - kdiv = pll_con1 & PLL46XX_KDIV_MASK; - - tmp = baseclk; - - if (pll_type == pll_4600) { - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - } else { - tmp *= (mdiv << 10) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 10; - } - - return result; -} - -#define PLL90XX_MDIV_MASK (0xFF) -#define PLL90XX_PDIV_MASK (0x3F) -#define PLL90XX_SDIV_MASK (0x7) -#define PLL90XX_KDIV_MASK (0xffff) -#define PLL90XX_LOCKED_SHIFT (29) -#define PLL90XX_MDIV_SHIFT (16) -#define PLL90XX_PDIV_SHIFT (8) -#define PLL90XX_SDIV_SHIFT (0) -#define PLL90XX_KDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll90xx(unsigned long baseclk, - u32 pll_con, u32 pll_conk) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con >> PLL90XX_MDIV_SHIFT) & PLL90XX_MDIV_MASK; - pdiv = (pll_con >> PLL90XX_PDIV_SHIFT) & PLL90XX_PDIV_MASK; - sdiv = (pll_con >> PLL90XX_SDIV_SHIFT) & PLL90XX_SDIV_MASK; - kdiv = pll_conk & PLL90XX_KDIV_MASK; - - /* - * We need to multiple baseclk by mdiv (the integer part) and kdiv - * which is in 2^16ths, so shift mdiv up (does not overflow) and - * add kdiv before multiplying. The use of tmp is to avoid any - * overflows before shifting bac down into result when multipling - * by the mdiv and kdiv pair. - */ - - tmp = baseclk; - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - - return result; -} - -#define PLL65XX_MDIV_MASK (0x3FF) -#define PLL65XX_PDIV_MASK (0x3F) -#define PLL65XX_SDIV_MASK (0x7) -#define PLL65XX_MDIV_SHIFT (16) -#define PLL65XX_PDIV_SHIFT (8) -#define PLL65XX_SDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll65xx(unsigned long baseclk, u32 pll_con) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pll_con >> PLL65XX_MDIV_SHIFT) & PLL65XX_MDIV_MASK; - pdiv = (pll_con >> PLL65XX_PDIV_SHIFT) & PLL65XX_PDIV_MASK; - sdiv = (pll_con >> PLL65XX_SDIV_SHIFT) & PLL65XX_SDIV_MASK; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} diff --git a/arch/arm/plat-samsung/include/plat/s5p-clock.h b/arch/arm/plat-samsung/include/plat/s5p-clock.h deleted file mode 100644 index acacc4b..0000000 --- a/arch/arm/plat-samsung/include/plat/s5p-clock.h +++ /dev/null @@ -1,65 +0,0 @@ -/* linux/arch/arm/plat-samsung/include/plat/s5p-clock.h - * - * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Header file for s5p clock support - * - * 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. -*/ - -#ifndef __ASM_PLAT_S5P_CLOCK_H -#define __ASM_PLAT_S5P_CLOCK_H __FILE__ - -#include <linux/clk.h> - -#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1) - -#define clk_fin_apll clk_ext_xtal_mux -#define clk_fin_bpll clk_ext_xtal_mux -#define clk_fin_cpll clk_ext_xtal_mux -#define clk_fin_mpll clk_ext_xtal_mux -#define clk_fin_epll clk_ext_xtal_mux -#define clk_fin_dpll clk_ext_xtal_mux -#define clk_fin_vpll clk_ext_xtal_mux -#define clk_fin_hpll clk_ext_xtal_mux - -extern struct clk clk_ext_xtal_mux; -extern struct clk clk_xusbxti; -extern struct clk clk_48m; -extern struct clk s5p_clk_27m; -extern struct clk clk_fout_apll; -extern struct clk clk_fout_bpll; -extern struct clk clk_fout_bpll_div2; -extern struct clk clk_fout_cpll; -extern struct clk clk_fout_mpll; -extern struct clk clk_fout_mpll_div2; -extern struct clk clk_fout_epll; -extern struct clk clk_fout_dpll; -extern struct clk clk_fout_vpll; -extern struct clk clk_arm; -extern struct clk clk_vpll; - -extern struct clksrc_sources clk_src_apll; -extern struct clksrc_sources clk_src_bpll; -extern struct clksrc_sources clk_src_bpll_fout; -extern struct clksrc_sources clk_src_cpll; -extern struct clksrc_sources clk_src_mpll; -extern struct clksrc_sources clk_src_mpll_fout; -extern struct clksrc_sources clk_src_epll; -extern struct clksrc_sources clk_src_dpll; - -extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable); - -/* Common EPLL operations for S5P platform */ -extern int s5p_epll_enable(struct clk *clk, int enable); -extern unsigned long s5p_epll_get_rate(struct clk *clk); - -/* SPDIF clk operations common for S5PV210/C110 and Exynos4 */ -extern int s5p_spdif_set_rate(struct clk *clk, unsigned long rate); -extern unsigned long s5p_spdif_get_rate(struct clk *clk); - -extern struct clk_ops s5p_sclk_spdif_ops; -#endif /* __ASM_PLAT_S5P_CLOCK_H */ diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c index a1f925f..11fbbc2 100644 --- a/arch/arm/plat-samsung/init.c +++ b/arch/arm/plat-samsung/init.c @@ -30,7 +30,6 @@ #include <plat/cpu.h> #include <plat/devs.h> -#include <plat/clock.h> static struct cpu_table *cpu; diff --git a/arch/arm/plat-samsung/s5p-clock.c b/arch/arm/plat-samsung/s5p-clock.c deleted file mode 100644 index 48a1599..0000000 --- a/arch/arm/plat-samsung/s5p-clock.c +++ /dev/null @@ -1,294 +0,0 @@ -/* - * Copyright 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P - Common clock support - * - * 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/kernel.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/io.h> -#include <asm/div64.h> - -#include <mach/regs-clock.h> - -#include <plat/clock.h> -#include <plat/clock-clksrc.h> -#include <plat/s5p-clock.h> - -/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call - * clk_ext_xtal_mux. -*/ -struct clk clk_ext_xtal_mux = { - .name = "ext_xtal", - .id = -1, -}; - -struct clk clk_xusbxti = { - .name = "xusbxti", - .id = -1, - .rate = 24000000, -}; - -struct clk s5p_clk_27m = { - .name = "clk_27m", - .id = -1, - .rate = 27000000, -}; - -/* 48MHz USB Phy clock output */ -struct clk clk_48m = { - .name = "clk_48m", - .id = -1, - .rate = 48000000, -}; - -/* APLL clock output - * No need .ctrlbit, this is always on -*/ -struct clk clk_fout_apll = { - .name = "fout_apll", - .id = -1, -}; - -/* BPLL clock output */ - -struct clk clk_fout_bpll = { - .name = "fout_bpll", - .id = -1, -}; - -struct clk clk_fout_bpll_div2 = { - .name = "fout_bpll_div2", - .id = -1, -}; - -/* CPLL clock output */ - -struct clk clk_fout_cpll = { - .name = "fout_cpll", - .id = -1, -}; - -/* MPLL clock output - * No need .ctrlbit, this is always on -*/ -struct clk clk_fout_mpll = { - .name = "fout_mpll", - .id = -1, -}; - -struct clk clk_fout_mpll_div2 = { - .name = "fout_mpll_div2", - .id = -1, -}; - -/* EPLL clock output */ -struct clk clk_fout_epll = { - .name = "fout_epll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* DPLL clock output */ -struct clk clk_fout_dpll = { - .name = "fout_dpll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* VPLL clock output */ -struct clk clk_fout_vpll = { - .name = "fout_vpll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* Possible clock sources for APLL Mux */ -static struct clk *clk_src_apll_list[] = { - [0] = &clk_fin_apll, - [1] = &clk_fout_apll, -}; - -struct clksrc_sources clk_src_apll = { - .sources = clk_src_apll_list, - .nr_sources = ARRAY_SIZE(clk_src_apll_list), -}; - -/* Possible clock sources for BPLL Mux */ -static struct clk *clk_src_bpll_list[] = { - [0] = &clk_fin_bpll, - [1] = &clk_fout_bpll, -}; - -struct clksrc_sources clk_src_bpll = { - .sources = clk_src_bpll_list, - .nr_sources = ARRAY_SIZE(clk_src_bpll_list), -}; - -static struct clk *clk_src_bpll_fout_list[] = { - [0] = &clk_fout_bpll_div2, - [1] = &clk_fout_bpll, -}; - -struct clksrc_sources clk_src_bpll_fout = { - .sources = clk_src_bpll_fout_list, - .nr_sources = ARRAY_SIZE(clk_src_bpll_fout_list), -}; - -/* Possible clock sources for CPLL Mux */ -static struct clk *clk_src_cpll_list[] = { - [0] = &clk_fin_cpll, - [1] = &clk_fout_cpll, -}; - -struct clksrc_sources clk_src_cpll = { - .sources = clk_src_cpll_list, - .nr_sources = ARRAY_SIZE(clk_src_cpll_list), -}; - -/* Possible clock sources for MPLL Mux */ -static struct clk *clk_src_mpll_list[] = { - [0] = &clk_fin_mpll, - [1] = &clk_fout_mpll, -}; - -struct clksrc_sources clk_src_mpll = { - .sources = clk_src_mpll_list, - .nr_sources = ARRAY_SIZE(clk_src_mpll_list), -}; - -static struct clk *clk_src_mpll_fout_list[] = { - [0] = &clk_fout_mpll_div2, - [1] = &clk_fout_mpll, -}; - -struct clksrc_sources clk_src_mpll_fout = { - .sources = clk_src_mpll_fout_list, - .nr_sources = ARRAY_SIZE(clk_src_mpll_fout_list), -}; - -/* Possible clock sources for EPLL Mux */ -static struct clk *clk_src_epll_list[] = { - [0] = &clk_fin_epll, - [1] = &clk_fout_epll, -}; - -struct clksrc_sources clk_src_epll = { - .sources = clk_src_epll_list, - .nr_sources = ARRAY_SIZE(clk_src_epll_list), -}; - -/* Possible clock sources for DPLL Mux */ -static struct clk *clk_src_dpll_list[] = { - [0] = &clk_fin_dpll, - [1] = &clk_fout_dpll, -}; - -struct clksrc_sources clk_src_dpll = { - .sources = clk_src_dpll_list, - .nr_sources = ARRAY_SIZE(clk_src_dpll_list), -}; - -struct clk clk_vpll = { - .name = "vpll", - .id = -1, -}; - -int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable) -{ - unsigned int ctrlbit = clk->ctrlbit; - u32 con; - - con = __raw_readl(reg); - con = enable ? (con | ctrlbit) : (con & ~ctrlbit); - __raw_writel(con, reg); - return 0; -} - -int s5p_epll_enable(struct clk *clk, int enable) -{ - unsigned int ctrlbit = clk->ctrlbit; - unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit; - - if (enable) - __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON); - else - __raw_writel(epll_con, S5P_EPLL_CON); - - return 0; -} - -unsigned long s5p_epll_get_rate(struct clk *clk) -{ - return clk->rate; -} - -int s5p_spdif_set_rate(struct clk *clk, unsigned long rate) -{ - struct clk *pclk; - int ret; - - pclk = clk_get_parent(clk); - if (IS_ERR(pclk)) - return -EINVAL; - - ret = pclk->ops->set_rate(pclk, rate); - clk_put(pclk); - - return ret; -} - -unsigned long s5p_spdif_get_rate(struct clk *clk) -{ - struct clk *pclk; - int rate; - - pclk = clk_get_parent(clk); - if (IS_ERR(pclk)) - return -EINVAL; - - rate = pclk->ops->get_rate(pclk); - clk_put(pclk); - - return rate; -} - -struct clk_ops s5p_sclk_spdif_ops = { - .set_rate = s5p_spdif_set_rate, - .get_rate = s5p_spdif_get_rate, -}; - -static struct clk *s5p_clks[] __initdata = { - &clk_ext_xtal_mux, - &clk_48m, - &s5p_clk_27m, - &clk_fout_apll, - &clk_fout_mpll, - &clk_fout_epll, - &clk_fout_dpll, - &clk_fout_vpll, - &clk_vpll, - &clk_xusbxti, -}; - -void __init s5p_register_clocks(unsigned long xtal_freq) -{ - int ret; - - clk_ext_xtal_mux.rate = xtal_freq; - - ret = s3c24xx_register_clocks(s5p_clks, ARRAY_SIZE(s5p_clks)); - if (ret > 0) - printk(KERN_ERR "Failed to register s5p clocks\n"); -} |