ARM: shmobile: r8a7740: use fixed ratio clock
Current clock-r8a7740 is using own implement for each divX clocks. This patch switches to use fixed ratio clock, and was tesed on armadillo board. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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@ -22,6 +22,7 @@
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#include <linux/io.h>
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#include <linux/sh_clk.h>
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#include <linux/clkdev.h>
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#include <mach/clock.h>
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#include <mach/common.h>
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#include <mach/r8a7740.h>
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@ -97,42 +98,13 @@ static struct clk dv_clk = {
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.rate = 27000000,
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};
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static unsigned long div_recalc(struct clk *clk)
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{
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return clk->parent->rate / (int)(clk->priv);
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}
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SH_CLK_RATIO(div2, 1, 2);
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SH_CLK_RATIO(div1k, 1, 1024);
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static struct sh_clk_ops div_clk_ops = {
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.recalc = div_recalc,
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};
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/* extal1 / 2 */
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static struct clk extal1_div2_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)2,
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.parent = &extal1_clk,
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};
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/* extal1 / 1024 */
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static struct clk extal1_div1024_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)1024,
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.parent = &extal1_clk,
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};
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/* extal1 / 2 / 1024 */
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static struct clk extal1_div2048_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)1024,
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.parent = &extal1_div2_clk,
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};
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/* extal2 / 2 */
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static struct clk extal2_div2_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)2,
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.parent = &extal2_clk,
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};
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SH_FIXED_RATIO_CLK(extal1_div2_clk, extal1_clk, div2);
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SH_FIXED_RATIO_CLK(extal1_div1024_clk, extal1_clk, div1k);
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SH_FIXED_RATIO_CLK(extal1_div2048_clk, extal1_div2_clk, div1k);
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SH_FIXED_RATIO_CLK(extal2_div2_clk, extal2_clk, div2);
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static struct sh_clk_ops followparent_clk_ops = {
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.recalc = followparent_recalc,
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@ -143,11 +115,7 @@ static struct clk system_clk = {
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.ops = &followparent_clk_ops,
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};
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static struct clk system_div2_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)2,
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.parent = &system_clk,
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};
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SH_FIXED_RATIO_CLK(system_div2_clk, system_clk, div2);
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/* r_clk */
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static struct clk r_clk = {
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@ -184,11 +152,7 @@ static struct clk pllc1_clk = {
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};
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/* PLLC1 / 2 */
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static struct clk pllc1_div2_clk = {
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.ops = &div_clk_ops,
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.priv = (void *)2,
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.parent = &pllc1_clk,
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};
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SH_FIXED_RATIO_CLK(pllc1_div2_clk, pllc1_clk, div2);
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/* USB clock */
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/*
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