diff options
Diffstat (limited to 'arch/arm/mach-s5p6442/clock.c')
| -rw-r--r-- | arch/arm/mach-s5p6442/clock.c | 430 | 
1 files changed, 0 insertions, 430 deletions
diff --git a/arch/arm/mach-s5p6442/clock.c b/arch/arm/mach-s5p6442/clock.c deleted file mode 100644 index 16d6e7e61b5..00000000000 --- a/arch/arm/mach-s5p6442/clock.c +++ /dev/null @@ -1,430 +0,0 @@ -/* linux/arch/arm/mach-s5p6442/clock.c - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - *		http://www.samsung.com/ - * - * S5P6442 - Clock support - * - * 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/err.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <mach/map.h> - -#include <plat/cpu-freq.h> -#include <mach/regs-clock.h> -#include <plat/clock.h> -#include <plat/cpu.h> -#include <plat/pll.h> -#include <plat/s5p-clock.h> -#include <plat/clock-clksrc.h> -#include <plat/s5p6442.h> - -static struct clksrc_clk clk_mout_apll = { -	.clk	= { -		.name		= "mout_apll", -		.id		= -1, -	}, -	.sources	= &clk_src_apll, -	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 }, -}; - -static struct clksrc_clk clk_mout_mpll = { -	.clk = { -		.name		= "mout_mpll", -		.id		= -1, -	}, -	.sources	= &clk_src_mpll, -	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 4, .size = 1 }, -}; - -static struct clksrc_clk clk_mout_epll = { -	.clk	= { -		.name		= "mout_epll", -		.id		= -1, -	}, -	.sources	= &clk_src_epll, -	.reg_src	= { .reg = S5P_CLK_SRC0, .shift = 8, .size = 1 }, -}; - -/* Possible clock sources for ARM Mux */ -static struct clk *clk_src_arm_list[] = { -	[1] = &clk_mout_apll.clk, -	[2] = &clk_mout_mpll.clk, -}; - -static struct clksrc_sources clk_src_arm = { -	.sources	= clk_src_arm_list, -	.nr_sources	= ARRAY_SIZE(clk_src_arm_list), -}; - -static struct clksrc_clk clk_mout_arm = { -	.clk	= { -		.name		= "mout_arm", -		.id		= -1, -	}, -	.sources	= &clk_src_arm, -	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 16, .size = 3 }, -}; - -static struct clk clk_dout_a2m = { -	.name		= "dout_a2m", -	.id		= -1, -	.parent		= &clk_mout_apll.clk, -}; - -/* Possible clock sources for D0 Mux */ -static struct clk *clk_src_d0_list[] = { -	[1] = &clk_mout_mpll.clk, -	[2] = &clk_dout_a2m, -}; - -static struct clksrc_sources clk_src_d0 = { -	.sources	= clk_src_d0_list, -	.nr_sources	= ARRAY_SIZE(clk_src_d0_list), -}; - -static struct clksrc_clk clk_mout_d0 = { -	.clk = { -		.name		= "mout_d0", -		.id		= -1, -	}, -	.sources	= &clk_src_d0, -	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 20, .size = 3 }, -}; - -static struct clk clk_dout_apll = { -	.name		= "dout_apll", -	.id		= -1, -	.parent		= &clk_mout_arm.clk, -}; - -/* Possible clock sources for D0SYNC Mux */ -static struct clk *clk_src_d0sync_list[] = { -	[1] = &clk_mout_d0.clk, -	[2] = &clk_dout_apll, -}; - -static struct clksrc_sources clk_src_d0sync = { -	.sources	= clk_src_d0sync_list, -	.nr_sources	= ARRAY_SIZE(clk_src_d0sync_list), -}; - -static struct clksrc_clk clk_mout_d0sync = { -	.clk	= { -		.name		= "mout_d0sync", -		.id		= -1, -	}, -	.sources	= &clk_src_d0sync, -	.reg_src	= { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 }, -}; - -/* Possible clock sources for D1 Mux */ -static struct clk *clk_src_d1_list[] = { -	[1] = &clk_mout_mpll.clk, -	[2] = &clk_dout_a2m, -}; - -static struct clksrc_sources clk_src_d1 = { -	.sources	= clk_src_d1_list, -	.nr_sources	= ARRAY_SIZE(clk_src_d1_list), -}; - -static struct clksrc_clk clk_mout_d1 = { -	.clk	= { -		.name		= "mout_d1", -		.id		= -1, -	}, -	.sources	= &clk_src_d1, -	.reg_src	= { .reg = S5P_CLK_MUX_STAT0, .shift = 24, .size = 3 }, -}; - -/* Possible clock sources for D1SYNC Mux */ -static struct clk *clk_src_d1sync_list[] = { -	[1] = &clk_mout_d1.clk, -	[2] = &clk_dout_apll, -}; - -static struct clksrc_sources clk_src_d1sync = { -	.sources	= clk_src_d1sync_list, -	.nr_sources	= ARRAY_SIZE(clk_src_d1sync_list), -}; - -static struct clksrc_clk clk_mout_d1sync = { -	.clk	= { -		.name		= "mout_d1sync", -		.id		= -1, -	}, -	.sources	= &clk_src_d1sync, -	.reg_src	= { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 }, -}; - -static struct clk clk_hclkd0 = { -	.name		= "hclkd0", -	.id		= -1, -	.parent		= &clk_mout_d0sync.clk, -}; - -static struct clk clk_hclkd1 = { -	.name		= "hclkd1", -	.id		= -1, -	.parent		= &clk_mout_d1sync.clk, -}; - -static struct clk clk_pclkd0 = { -	.name		= "pclkd0", -	.id		= -1, -	.parent		= &clk_hclkd0, -}; - -static struct clk clk_pclkd1 = { -	.name		= "pclkd1", -	.id		= -1, -	.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); -} - -static struct clksrc_clk clksrcs[] = { -	{ -		.clk	= { -			.name		= "dout_a2m", -			.id		= -1, -			.parent		= &clk_mout_apll.clk, -		}, -		.sources = &clk_src_apll, -		.reg_src = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 3 }, -	}, { -		.clk	= { -			.name		= "dout_apll", -			.id		= -1, -			.parent		= &clk_mout_arm.clk, -		}, -		.sources = &clk_src_arm, -		.reg_src = { .reg = S5P_CLK_MUX_STAT0, .shift = 16, .size = 3 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 3 }, -	}, { -		.clk	= { -			.name		= "hclkd1", -			.id		= -1, -			.parent		= &clk_mout_d1sync.clk, -		}, -		.sources = &clk_src_d1sync, -		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 24, .size = 4 }, -	}, { -		.clk	= { -			.name		= "hclkd0", -			.id		= -1, -			.parent		= &clk_mout_d0sync.clk, -		}, -		.sources = &clk_src_d0sync, -		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 16, .size = 4 }, -	}, { -		.clk	= { -			.name		= "pclkd0", -			.id		= -1, -			.parent		= &clk_hclkd0, -		}, -		.sources = &clk_src_d0sync, -		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 28, .size = 3 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 20, .size = 3 }, -	}, { -		.clk	= { -			.name		= "pclkd1", -			.id		= -1, -			.parent		= &clk_hclkd1, -		}, -		.sources = &clk_src_d1sync, -		.reg_src = { .reg = S5P_CLK_MUX_STAT1, .shift = 24, .size = 3 }, -		.reg_div = { .reg = S5P_CLK_DIV0, .shift = 28, .size = 3 }, -	} -}; - -/* Clock initialisation code */ -static struct clksrc_clk *init_parents[] = { -	&clk_mout_apll, -	&clk_mout_mpll, -	&clk_mout_epll, -	&clk_mout_arm, -	&clk_mout_d0, -	&clk_mout_d0sync, -	&clk_mout_d1, -	&clk_mout_d1sync, -}; - -void __init_or_cpufreq s5p6442_setup_clocks(void) -{ -	struct clk *pclkd0_clk; -	struct clk *pclkd1_clk; - -	unsigned long xtal; -	unsigned long arm; -	unsigned long hclkd0 = 0; -	unsigned long hclkd1 = 0; -	unsigned long pclkd0 = 0; -	unsigned long pclkd1 = 0; - -	unsigned long apll; -	unsigned long mpll; -	unsigned long epll; -	unsigned int ptr; - -	printk(KERN_DEBUG "%s: registering clocks\n", __func__); - -	xtal = clk_get_rate(&clk_xtal); - -	printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal); - -	apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508); -	mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502); -	epll = s5p_get_pll45xx(xtal, __raw_readl(S5P_EPLL_CON), pll_4500); - -	printk(KERN_INFO "S5P6442: PLL settings, A=%ld, M=%ld, E=%ld", -			apll, mpll, epll); - -	clk_fout_apll.rate = apll; -	clk_fout_mpll.rate = mpll; -	clk_fout_epll.rate = epll; - -	for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++) -		s3c_set_clksrc(init_parents[ptr], true); - -	for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) -		s3c_set_clksrc(&clksrcs[ptr], true); - -	arm = clk_get_rate(&clk_dout_apll); -	hclkd0 = clk_get_rate(&clk_hclkd0); -	hclkd1 = clk_get_rate(&clk_hclkd1); - -	pclkd0_clk = clk_get(NULL, "pclkd0"); -	BUG_ON(IS_ERR(pclkd0_clk)); - -	pclkd0 = clk_get_rate(pclkd0_clk); -	clk_put(pclkd0_clk); - -	pclkd1_clk = clk_get(NULL, "pclkd1"); -	BUG_ON(IS_ERR(pclkd1_clk)); - -	pclkd1 = clk_get_rate(pclkd1_clk); -	clk_put(pclkd1_clk); - -	printk(KERN_INFO "S5P6442: HCLKD0=%ld, HCLKD1=%ld, PCLKD0=%ld, PCLKD1=%ld\n", -			hclkd0, hclkd1, pclkd0, pclkd1); - -	/* For backward compatibility */ -	clk_f.rate = arm; -	clk_h.rate = hclkd1; -	clk_p.rate = pclkd1; - -	clk_pclkd0.rate = pclkd0; -	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", -		.id		= -1, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1<<16), -	}, { -		.name		= "uart", -		.id		= 0, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1<<17), -	}, { -		.name		= "uart", -		.id		= 1, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1<<18), -	}, { -		.name		= "uart", -		.id		= 2, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1<<19), -	}, { -		.name		= "watchdog", -		.id		= -1, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1 << 22), -	}, { -		.name		= "timers", -		.id		= -1, -		.parent		= &clk_pclkd1, -		.enable		= s5p6442_clk_ip3_ctrl, -		.ctrlbit	= (1<<23), -	}, -}; - -static struct clk *clks[] __initdata = { -	&clk_ext, -	&clk_epll, -	&clk_mout_apll.clk, -	&clk_mout_mpll.clk, -	&clk_mout_epll.clk, -	&clk_mout_d0.clk, -	&clk_mout_d0sync.clk, -	&clk_mout_d1.clk, -	&clk_mout_d1sync.clk, -	&clk_hclkd0, -	&clk_pclkd0, -	&clk_hclkd1, -	&clk_pclkd1, -}; - -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(); -}  | 
