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ARM: S5P6442: Add DMA operation clock 

This patch adds DMA operation clock which is disabled as default.

Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
Acked-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Seungwhan Youn 2010-10-19 18:08:08 +09:00 committed by Kukjin Kim
parent 8e0e9e2958
commit 06185c0762
2 changed files with 29 additions and 0 deletions
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28
arch/arm/mach-s5p6442/clock.c
View File

@ -192,6 +192,11 @@ static struct clk clk_pclkd1 = {
.parent = &clk_hclkd1,
};
int s5p6442_clk_ip0_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_IP0, clk, enable);
}
int s5p6442_clk_ip3_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_IP3, clk, enable);
@ -335,6 +340,16 @@ void __init_or_cpufreq s5p6442_setup_clocks(void)
clk_pclkd1.rate = pclkd1;
}
static struct clk init_clocks_disable[] = {
{
.name = "pdma",
.id = -1,
.parent = &clk_pclkd1,
.enable = s5p6442_clk_ip0_ctrl,
.ctrlbit = (1 << 3),
},
};
static struct clk init_clocks[] = {
{
.name = "systimer",
@ -393,10 +408,23 @@ static struct clk *clks[] __initdata = {
void __init s5p6442_register_clocks(void)
{
struct clk *clkptr;
int i, ret;
s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
clkptr = init_clocks_disable;
for (i = 0; i < ARRAY_SIZE(init_clocks_disable); i++, clkptr++) {
ret = s3c24xx_register_clock(clkptr);
if (ret < 0) {
printk(KERN_ERR "Fail to register clock %s (%d)\n",
clkptr->name, ret);
} else
(clkptr->enable)(clkptr, 0);
}
s3c_pwmclk_init();
}

1
arch/arm/mach-s5p6442/include/mach/regs-clock.h
View File

@ -46,6 +46,7 @@
#define S5P_CLK_DIV5 S5P_CLKREG(0x314)
#define S5P_CLK_DIV6 S5P_CLKREG(0x318)
#define S5P_CLKGATE_IP0 S5P_CLKREG(0x460)
#define S5P_CLKGATE_IP3 S5P_CLKREG(0x46C)
/* CLK_OUT */