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sh: use ioread32/iowrite32 and mapped_reg for div4

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Convert the CPG DIV4 helper code to use the new mapped_reg
together with ioread32() and iowrite32().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2011-12-08 22:59:13 +09:00 committed by Paul Mundt
parent b3ab82b3eb
commit 0e027376f8
1 changed files with 8 additions and 8 deletions
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16
drivers/sh/clk/cpg.c
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@ -252,7 +252,7 @@ static unsigned long sh_clk_div4_recalc(struct clk *clk)
clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
table, &clk->arch_flags);
idx = (__raw_readl(clk->enable_reg) >> clk->enable_bit) & 0x000f;
idx = (ioread32(clk->mapped_reg) >> clk->enable_bit) & 0x000f;
return clk->freq_table[idx].frequency;
}
@ -270,15 +270,15 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent)
*/
if (parent->flags & CLK_ENABLE_ON_INIT)
value = __raw_readl(clk->enable_reg) & ~(1 << 7);
value = ioread32(clk->mapped_reg) & ~(1 << 7);
else
value = __raw_readl(clk->enable_reg) | (1 << 7);
value = ioread32(clk->mapped_reg) | (1 << 7);
ret = clk_reparent(clk, parent);
if (ret < 0)
return ret;
__raw_writel(value, clk->enable_reg);
iowrite32(value, clk->mapped_reg);
/* Rebiuld the frequency table */
clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
@ -295,10 +295,10 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate)
if (idx < 0)
return idx;
value = __raw_readl(clk->enable_reg);
value = ioread32(clk->mapped_reg);
value &= ~(0xf << clk->enable_bit);
value |= (idx << clk->enable_bit);
__raw_writel(value, clk->enable_reg);
iowrite32(value, clk->mapped_reg);
if (d4t->kick)
d4t->kick(clk);
@ -308,13 +308,13 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate)
static int sh_clk_div4_enable(struct clk *clk)
{
__raw_writel(__raw_readl(clk->enable_reg) & ~(1 << 8), clk->enable_reg);
iowrite32(ioread32(clk->mapped_reg) & ~(1 << 8), clk->mapped_reg);
return 0;
}
static void sh_clk_div4_disable(struct clk *clk)
{
__raw_writel(__raw_readl(clk->enable_reg) | (1 << 8), clk->enable_reg);
iowrite32(ioread32(clk->mapped_reg) | (1 << 8), clk->mapped_reg);
}
static struct clk_ops sh_clk_div4_clk_ops = {