From 06185c07621263ee1665d4a4e27a9782a677bcf9 Mon Sep 17 00:00:00 2001 From: Seungwhan Youn Date: Tue, 19 Oct 2010 18:08:08 +0900 Subject: [PATCH] ARM: S5P6442: Add DMA operation clock This patch adds DMA operation clock which is disabled as default. Signed-off-by: Seungwhan Youn Acked-by: Jassi Brar Signed-off-by: Kukjin Kim --- arch/arm/mach-s5p6442/clock.c | 28 +++++++++++++++++++ .../mach-s5p6442/include/mach/regs-clock.h | 1 + 2 files changed, 29 insertions(+) diff --git a/arch/arm/mach-s5p6442/clock.c b/arch/arm/mach-s5p6442/clock.c index dcd20f17212a..16d6e7e61b50 100644 --- a/arch/arm/mach-s5p6442/clock.c +++ b/arch/arm/mach-s5p6442/clock.c @@ -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(); } diff --git a/arch/arm/mach-s5p6442/include/mach/regs-clock.h b/arch/arm/mach-s5p6442/include/mach/regs-clock.h index d8360b5d4ece..00828a336991 100644 --- a/arch/arm/mach-s5p6442/include/mach/regs-clock.h +++ b/arch/arm/mach-s5p6442/include/mach/regs-clock.h @@ -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 */ -- 2.39.5