diff options
Diffstat (limited to 'arch/arm/plat-samsung/s5p-clock.c')
-rw-r--r-- | arch/arm/plat-samsung/s5p-clock.c | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/arch/arm/plat-samsung/s5p-clock.c b/arch/arm/plat-samsung/s5p-clock.c deleted file mode 100644 index 48a1599..0000000 --- a/arch/arm/plat-samsung/s5p-clock.c +++ /dev/null @@ -1,294 +0,0 @@ -/* - * Copyright 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P - Common 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/errno.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/io.h> -#include <asm/div64.h> - -#include <mach/regs-clock.h> - -#include <plat/clock.h> -#include <plat/clock-clksrc.h> -#include <plat/s5p-clock.h> - -/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call - * clk_ext_xtal_mux. -*/ -struct clk clk_ext_xtal_mux = { - .name = "ext_xtal", - .id = -1, -}; - -struct clk clk_xusbxti = { - .name = "xusbxti", - .id = -1, - .rate = 24000000, -}; - -struct clk s5p_clk_27m = { - .name = "clk_27m", - .id = -1, - .rate = 27000000, -}; - -/* 48MHz USB Phy clock output */ -struct clk clk_48m = { - .name = "clk_48m", - .id = -1, - .rate = 48000000, -}; - -/* APLL clock output - * No need .ctrlbit, this is always on -*/ -struct clk clk_fout_apll = { - .name = "fout_apll", - .id = -1, -}; - -/* BPLL clock output */ - -struct clk clk_fout_bpll = { - .name = "fout_bpll", - .id = -1, -}; - -struct clk clk_fout_bpll_div2 = { - .name = "fout_bpll_div2", - .id = -1, -}; - -/* CPLL clock output */ - -struct clk clk_fout_cpll = { - .name = "fout_cpll", - .id = -1, -}; - -/* MPLL clock output - * No need .ctrlbit, this is always on -*/ -struct clk clk_fout_mpll = { - .name = "fout_mpll", - .id = -1, -}; - -struct clk clk_fout_mpll_div2 = { - .name = "fout_mpll_div2", - .id = -1, -}; - -/* EPLL clock output */ -struct clk clk_fout_epll = { - .name = "fout_epll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* DPLL clock output */ -struct clk clk_fout_dpll = { - .name = "fout_dpll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* VPLL clock output */ -struct clk clk_fout_vpll = { - .name = "fout_vpll", - .id = -1, - .ctrlbit = (1 << 31), -}; - -/* Possible clock sources for APLL Mux */ -static struct clk *clk_src_apll_list[] = { - [0] = &clk_fin_apll, - [1] = &clk_fout_apll, -}; - -struct clksrc_sources clk_src_apll = { - .sources = clk_src_apll_list, - .nr_sources = ARRAY_SIZE(clk_src_apll_list), -}; - -/* Possible clock sources for BPLL Mux */ -static struct clk *clk_src_bpll_list[] = { - [0] = &clk_fin_bpll, - [1] = &clk_fout_bpll, -}; - -struct clksrc_sources clk_src_bpll = { - .sources = clk_src_bpll_list, - .nr_sources = ARRAY_SIZE(clk_src_bpll_list), -}; - -static struct clk *clk_src_bpll_fout_list[] = { - [0] = &clk_fout_bpll_div2, - [1] = &clk_fout_bpll, -}; - -struct clksrc_sources clk_src_bpll_fout = { - .sources = clk_src_bpll_fout_list, - .nr_sources = ARRAY_SIZE(clk_src_bpll_fout_list), -}; - -/* Possible clock sources for CPLL Mux */ -static struct clk *clk_src_cpll_list[] = { - [0] = &clk_fin_cpll, - [1] = &clk_fout_cpll, -}; - -struct clksrc_sources clk_src_cpll = { - .sources = clk_src_cpll_list, - .nr_sources = ARRAY_SIZE(clk_src_cpll_list), -}; - -/* Possible clock sources for MPLL Mux */ -static struct clk *clk_src_mpll_list[] = { - [0] = &clk_fin_mpll, - [1] = &clk_fout_mpll, -}; - -struct clksrc_sources clk_src_mpll = { - .sources = clk_src_mpll_list, - .nr_sources = ARRAY_SIZE(clk_src_mpll_list), -}; - -static struct clk *clk_src_mpll_fout_list[] = { - [0] = &clk_fout_mpll_div2, - [1] = &clk_fout_mpll, -}; - -struct clksrc_sources clk_src_mpll_fout = { - .sources = clk_src_mpll_fout_list, - .nr_sources = ARRAY_SIZE(clk_src_mpll_fout_list), -}; - -/* Possible clock sources for EPLL Mux */ -static struct clk *clk_src_epll_list[] = { - [0] = &clk_fin_epll, - [1] = &clk_fout_epll, -}; - -struct clksrc_sources clk_src_epll = { - .sources = clk_src_epll_list, - .nr_sources = ARRAY_SIZE(clk_src_epll_list), -}; - -/* Possible clock sources for DPLL Mux */ -static struct clk *clk_src_dpll_list[] = { - [0] = &clk_fin_dpll, - [1] = &clk_fout_dpll, -}; - -struct clksrc_sources clk_src_dpll = { - .sources = clk_src_dpll_list, - .nr_sources = ARRAY_SIZE(clk_src_dpll_list), -}; - -struct clk clk_vpll = { - .name = "vpll", - .id = -1, -}; - -int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable) -{ - unsigned int ctrlbit = clk->ctrlbit; - u32 con; - - con = __raw_readl(reg); - con = enable ? (con | ctrlbit) : (con & ~ctrlbit); - __raw_writel(con, reg); - return 0; -} - -int s5p_epll_enable(struct clk *clk, int enable) -{ - unsigned int ctrlbit = clk->ctrlbit; - unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit; - - if (enable) - __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON); - else - __raw_writel(epll_con, S5P_EPLL_CON); - - return 0; -} - -unsigned long s5p_epll_get_rate(struct clk *clk) -{ - return clk->rate; -} - -int s5p_spdif_set_rate(struct clk *clk, unsigned long rate) -{ - struct clk *pclk; - int ret; - - pclk = clk_get_parent(clk); - if (IS_ERR(pclk)) - return -EINVAL; - - ret = pclk->ops->set_rate(pclk, rate); - clk_put(pclk); - - return ret; -} - -unsigned long s5p_spdif_get_rate(struct clk *clk) -{ - struct clk *pclk; - int rate; - - pclk = clk_get_parent(clk); - if (IS_ERR(pclk)) - return -EINVAL; - - rate = pclk->ops->get_rate(pclk); - clk_put(pclk); - - return rate; -} - -struct clk_ops s5p_sclk_spdif_ops = { - .set_rate = s5p_spdif_set_rate, - .get_rate = s5p_spdif_get_rate, -}; - -static struct clk *s5p_clks[] __initdata = { - &clk_ext_xtal_mux, - &clk_48m, - &s5p_clk_27m, - &clk_fout_apll, - &clk_fout_mpll, - &clk_fout_epll, - &clk_fout_dpll, - &clk_fout_vpll, - &clk_vpll, - &clk_xusbxti, -}; - -void __init s5p_register_clocks(unsigned long xtal_freq) -{ - int ret; - - clk_ext_xtal_mux.rate = xtal_freq; - - ret = s3c24xx_register_clocks(s5p_clks, ARRAY_SIZE(s5p_clks)); - if (ret > 0) - printk(KERN_ERR "Failed to register s5p clocks\n"); -} |