diff options
Diffstat (limited to 'arch/arm/mach-s5p6442/clock.c')
| -rw-r--r-- | arch/arm/mach-s5p6442/clock.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/arch/arm/mach-s5p6442/clock.c b/arch/arm/mach-s5p6442/clock.c deleted file mode 100644 index fbbc7bede685..000000000000 --- a/arch/arm/mach-s5p6442/clock.c +++ /dev/null @@ -1,420 +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_off[] = { - { - .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) -{ - s3c24xx_register_clocks(clks, ARRAY_SIZE(clks)); - - s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); - s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks)); - - s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); - s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); - - s3c_pwmclk_init(); -} |