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>

1 files changed, 0 insertions, 212 deletions

diff --git a/arch/arm/plat-samsung/clock-clksrc.c b/arch/arm/plat-samsung/clock-clksrc.c
deleted file mode 100644
index 786a4107a157..000000000000
--- 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);
-		}
-	}
-}