diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2010-09-01 15:35:30 +0900 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2010-10-18 18:33:02 +0900 |
commit | 3109e55099cb013f9e1b63d39606dc5d7ecf25bd (patch) | |
tree | 46fc9d0af9f08df90b079f953b4c0015e7f6134a /arch/arm/mach-s5p6440/clock.c | |
parent | a2e0d6249fa866ce7f5a8fe08a4d75511e4701c6 (diff) | |
download | blackbird-op-linux-3109e55099cb013f9e1b63d39606dc5d7ecf25bd.tar.gz blackbird-op-linux-3109e55099cb013f9e1b63d39606dc5d7ecf25bd.zip |
ARM: S5P64X0: Update Clock for S5P6440 and S5P6450
This patch updates regarding clock files for supporting S5P6440 and
S5P6450 with one kernel image. The mach-s5p64x0/clock.c is for common
of them and there are specific clock files for each SoCs.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s5p6440/clock.c')
-rw-r--r-- | arch/arm/mach-s5p6440/clock.c | 846 |
1 files changed, 0 insertions, 846 deletions
diff --git a/arch/arm/mach-s5p6440/clock.c b/arch/arm/mach-s5p6440/clock.c deleted file mode 100644 index ca6e48dce777..000000000000 --- a/arch/arm/mach-s5p6440/clock.c +++ /dev/null @@ -1,846 +0,0 @@ -/* linux/arch/arm/mach-s5p6440/clock.c - * - * Copyright (c) 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P6440 - 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/sysdev.h> -#include <linux/io.h> - -#include <mach/hardware.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/clock-clksrc.h> -#include <plat/s5p-clock.h> -#include <plat/pll.h> -#include <plat/s5p6440.h> - -/* APLL Mux output clock */ -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 int s5p6440_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; -} - -static unsigned long s5p6440_epll_get_rate(struct clk *clk) -{ - return clk->rate; -} - -static u32 epll_div[][5] = { - { 36000000, 0, 48, 1, 4 }, - { 48000000, 0, 32, 1, 3 }, - { 60000000, 0, 40, 1, 3 }, - { 72000000, 0, 48, 1, 3 }, - { 84000000, 0, 28, 1, 2 }, - { 96000000, 0, 32, 1, 2 }, - { 32768000, 45264, 43, 1, 4 }, - { 45158000, 6903, 30, 1, 3 }, - { 49152000, 50332, 32, 1, 3 }, - { 67738000, 10398, 45, 1, 3 }, - { 73728000, 9961, 49, 1, 3 } -}; - -static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned int epll_con, epll_con_k; - unsigned int i; - - if (clk->rate == rate) /* Return if nothing changed */ - return 0; - - epll_con = __raw_readl(S5P_EPLL_CON); - epll_con_k = __raw_readl(S5P_EPLL_CON_K); - - epll_con_k &= ~(PLL90XX_KDIV_MASK); - epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK); - - for (i = 0; i < ARRAY_SIZE(epll_div); i++) { - if (epll_div[i][0] == rate) { - epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT); - epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) | - (epll_div[i][3] << PLL90XX_PDIV_SHIFT) | - (epll_div[i][4] << PLL90XX_SDIV_SHIFT); - break; - } - } - - if (i == ARRAY_SIZE(epll_div)) { - printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__); - return -EINVAL; - } - - __raw_writel(epll_con, S5P_EPLL_CON); - __raw_writel(epll_con_k, S5P_EPLL_CON_K); - - clk->rate = rate; - - return 0; -} - -static struct clk_ops s5p6440_epll_ops = { - .get_rate = s5p6440_epll_get_rate, - .set_rate = s5p6440_epll_set_rate, -}; - -static struct clksrc_clk clk_mout_epll = { - .clk = { - .name = "mout_epll", - .id = -1, - }, - .sources = &clk_src_epll, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 2, .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 = 1, .size = 1 }, -}; - -enum perf_level { - L0 = 532*1000, - L1 = 266*1000, - L2 = 133*1000, -}; - -static const u32 clock_table[][3] = { - /*{ARM_CLK, DIVarm, DIVhclk}*/ - {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P_CLKDIV0_HCLK_SHIFT)}, - {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P_CLKDIV0_HCLK_SHIFT)}, - {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P_CLKDIV0_HCLK_SHIFT)}, -}; - -static unsigned long s5p6440_armclk_get_rate(struct clk *clk) -{ - unsigned long rate = clk_get_rate(clk->parent); - u32 clkdiv; - - /* divisor mask starts at bit0, so no need to shift */ - clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK; - - return rate / (clkdiv + 1); -} - -static unsigned long s5p6440_armclk_round_rate(struct clk *clk, - unsigned long rate) -{ - u32 iter; - - for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) { - if (rate > clock_table[iter][0]) - return clock_table[iter-1][0]; - } - - return clock_table[ARRAY_SIZE(clock_table) - 1][0]; -} - -static int s5p6440_armclk_set_rate(struct clk *clk, unsigned long rate) -{ - u32 round_tmp; - u32 iter; - u32 clk_div0_tmp; - u32 cur_rate = clk->ops->get_rate(clk); - unsigned long flags; - - round_tmp = clk->ops->round_rate(clk, rate); - if (round_tmp == cur_rate) - return 0; - - - for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) { - if (round_tmp == clock_table[iter][0]) - break; - } - - if (iter >= ARRAY_SIZE(clock_table)) - iter = ARRAY_SIZE(clock_table) - 1; - - local_irq_save(flags); - if (cur_rate > round_tmp) { - /* Frequency Down */ - clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK); - clk_div0_tmp |= clock_table[iter][1]; - __raw_writel(clk_div0_tmp, ARM_CLK_DIV); - - clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & - ~(S5P_CLKDIV0_HCLK_MASK); - clk_div0_tmp |= clock_table[iter][2]; - __raw_writel(clk_div0_tmp, ARM_CLK_DIV); - - - } else { - /* Frequency Up */ - clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & - ~(S5P_CLKDIV0_HCLK_MASK); - clk_div0_tmp |= clock_table[iter][2]; - __raw_writel(clk_div0_tmp, ARM_CLK_DIV); - - clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK); - clk_div0_tmp |= clock_table[iter][1]; - __raw_writel(clk_div0_tmp, ARM_CLK_DIV); - } - local_irq_restore(flags); - - clk->rate = clock_table[iter][0]; - - return 0; -} - -static struct clk_ops s5p6440_clkarm_ops = { - .get_rate = s5p6440_armclk_get_rate, - .set_rate = s5p6440_armclk_set_rate, - .round_rate = s5p6440_armclk_round_rate, -}; - -static struct clksrc_clk clk_armclk = { - .clk = { - .name = "armclk", - .id = 1, - .parent = &clk_mout_apll.clk, - .ops = &s5p6440_clkarm_ops, - }, - .reg_div = { .reg = S5P_CLK_DIV0, .shift = 0, .size = 4 }, -}; - -static struct clksrc_clk clk_dout_mpll = { - .clk = { - .name = "dout_mpll", - .id = -1, - .parent = &clk_mout_mpll.clk, - }, - .reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 1 }, -}; - -static struct clksrc_clk clk_hclk = { - .clk = { - .name = "clk_hclk", - .id = -1, - .parent = &clk_armclk.clk, - }, - .reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 4 }, -}; - -static struct clksrc_clk clk_pclk = { - .clk = { - .name = "clk_pclk", - .id = -1, - .parent = &clk_hclk.clk, - }, - .reg_div = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 4 }, -}; - -static struct clk *clkset_hclklow_list[] = { - &clk_mout_apll.clk, - &clk_mout_mpll.clk, -}; - -static struct clksrc_sources clkset_hclklow = { - .sources = clkset_hclklow_list, - .nr_sources = ARRAY_SIZE(clkset_hclklow_list), -}; - -static struct clksrc_clk clk_hclk_low = { - .clk = { - .name = "hclk_low", - .id = -1, - }, - .sources = &clkset_hclklow, - .reg_src = { .reg = S5P_SYS_OTHERS, .shift = 6, .size = 1 }, - .reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 }, -}; - -static struct clksrc_clk clk_pclk_low = { - .clk = { - .name = "pclk_low", - .id = -1, - .parent = &clk_hclk_low.clk, - }, - .reg_div = { .reg = S5P_CLK_DIV3, .shift = 12, .size = 4 }, -}; - -int s5p6440_clk48m_ctrl(struct clk *clk, int enable) -{ - unsigned long flags; - u32 val; - - /* can't rely on clock lock, this register has other usages */ - local_irq_save(flags); - - val = __raw_readl(S5P_OTHERS); - if (enable) - val |= S5P_OTHERS_USB_SIG_MASK; - else - val &= ~S5P_OTHERS_USB_SIG_MASK; - - __raw_writel(val, S5P_OTHERS); - - local_irq_restore(flags); - - return 0; -} - -static int s5p6440_pclk_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_PCLK, clk, enable); -} - -static int s5p6440_hclk0_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_HCLK0, clk, enable); -} - -static int s5p6440_hclk1_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_HCLK1, clk, enable); -} - -static int s5p6440_sclk_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_SCLK0, clk, enable); -} - -static int s5p6440_sclk1_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_SCLK1, clk, enable); -} - -static int s5p6440_mem_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLK_GATE_MEM0, clk, enable); -} - -/* - * The following clocks will be disabled during clock initialization. It is - * recommended to keep the following clocks disabled until the driver requests - * for enabling the clock. - */ -static struct clk init_clocks_disable[] = { - { - .name = "nand", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_mem_ctrl, - .ctrlbit = S5P_CLKCON_MEM0_HCLK_NFCON, - }, { - .name = "adc", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_TSADC, - }, { - .name = "i2c", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_IIC0, - }, { - .name = "i2s_v40", - .id = 0, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_IIS2, - }, { - .name = "spi", - .id = 0, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_SPI0, - }, { - .name = "spi", - .id = 1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_SPI1, - }, { - .name = "sclk_spi_48", - .id = 0, - .parent = &clk_48m, - .enable = s5p6440_sclk_ctrl, - .ctrlbit = S5P_CLKCON_SCLK0_SPI0_48, - }, { - .name = "sclk_spi_48", - .id = 1, - .parent = &clk_48m, - .enable = s5p6440_sclk_ctrl, - .ctrlbit = S5P_CLKCON_SCLK0_SPI1_48, - }, { - .name = "mmc_48m", - .id = 0, - .parent = &clk_48m, - .enable = s5p6440_sclk_ctrl, - .ctrlbit = S5P_CLKCON_SCLK0_MMC0_48, - }, { - .name = "mmc_48m", - .id = 1, - .parent = &clk_48m, - .enable = s5p6440_sclk_ctrl, - .ctrlbit = S5P_CLKCON_SCLK0_MMC1_48, - }, { - .name = "mmc_48m", - .id = 2, - .parent = &clk_48m, - .enable = s5p6440_sclk_ctrl, - .ctrlbit = S5P_CLKCON_SCLK0_MMC2_48, - }, { - .name = "otg", - .id = -1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = S5P_CLKCON_HCLK0_USB - }, { - .name = "post", - .id = -1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = S5P_CLKCON_HCLK0_POST0 - }, { - .name = "lcd", - .id = -1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk1_ctrl, - .ctrlbit = S5P_CLKCON_HCLK1_DISPCON, - }, { - .name = "hsmmc", - .id = 0, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = S5P_CLKCON_HCLK0_HSMMC0, - }, { - .name = "hsmmc", - .id = 1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = S5P_CLKCON_HCLK0_HSMMC1, - }, { - .name = "hsmmc", - .id = 2, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = S5P_CLKCON_HCLK0_HSMMC2, - }, { - .name = "rtc", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_RTC, - }, { - .name = "watchdog", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_WDT, - }, { - .name = "timers", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_PWM, - }, { - .name = "hclk_fimgvg", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_hclk1_ctrl, - .ctrlbit = (1 << 2), - }, { - .name = "tsi", - .id = -1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk1_ctrl, - .ctrlbit = (1 << 0), - }, { - .name = "pclk_fimgvg", - .id = -1, - .parent = &clk_pclk.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 31), - }, { - .name = "dmc0", - .id = -1, - .parent = &clk_pclk.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 30), - }, { - .name = "etm", - .id = -1, - .parent = &clk_pclk.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 29), - }, { - .name = "dsim", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 28), - }, { - .name = "gps", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 25), - }, { - .name = "pcm", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = (1 << 8), - }, { - .name = "irom", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = (1 << 25), - }, { - .name = "dma", - .id = -1, - .parent = &clk_hclk_low.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = (1 << 12), - }, { - .name = "2d", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = (1 << 8), - }, -}; - -/* - * The following clocks will be enabled during clock initialization. - */ -static struct clk init_clocks[] = { - { - .name = "gpio", - .id = -1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_GPIO, - }, { - .name = "uart", - .id = 0, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_UART0, - }, { - .name = "uart", - .id = 1, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_UART1, - }, { - .name = "uart", - .id = 2, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_UART2, - }, { - .name = "uart", - .id = 3, - .parent = &clk_pclk_low.clk, - .enable = s5p6440_pclk_ctrl, - .ctrlbit = S5P_CLKCON_PCLK_UART3, - }, { - .name = "mem", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = (1 << 21), - }, { - .name = "intc", - .id = -1, - .parent = &clk_hclk.clk, - .enable = s5p6440_hclk0_ctrl, - .ctrlbit = (1 << 1), - }, -}; - -static struct clk clk_iis_cd_v40 = { - .name = "iis_cdclk_v40", - .id = -1, -}; - -static struct clk clk_pcm_cd = { - .name = "pcm_cdclk", - .id = -1, -}; - -static struct clk *clkset_group1_list[] = { - &clk_mout_epll.clk, - &clk_dout_mpll.clk, - &clk_fin_epll, -}; - -static struct clksrc_sources clkset_group1 = { - .sources = clkset_group1_list, - .nr_sources = ARRAY_SIZE(clkset_group1_list), -}; - -static struct clk *clkset_uart_list[] = { - &clk_mout_epll.clk, - &clk_dout_mpll.clk, -}; - -static struct clksrc_sources clkset_uart = { - .sources = clkset_uart_list, - .nr_sources = ARRAY_SIZE(clkset_uart_list), -}; - -static struct clk *clkset_audio_list[] = { - &clk_mout_epll.clk, - &clk_dout_mpll.clk, - &clk_fin_epll, - &clk_iis_cd_v40, - &clk_pcm_cd, -}; - -static struct clksrc_sources clkset_audio = { - .sources = clkset_audio_list, - .nr_sources = ARRAY_SIZE(clkset_audio_list), -}; - -static struct clksrc_clk clksrcs[] = { - { - .clk = { - .name = "mmc_bus", - .id = 0, - .ctrlbit = S5P_CLKCON_SCLK0_MMC0, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 18, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4 }, - }, { - .clk = { - .name = "mmc_bus", - .id = 1, - .ctrlbit = S5P_CLKCON_SCLK0_MMC1, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 4 }, - }, { - .clk = { - .name = "mmc_bus", - .id = 2, - .ctrlbit = S5P_CLKCON_SCLK0_MMC2, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 22, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 4 }, - }, { - .clk = { - .name = "uclk1", - .id = -1, - .ctrlbit = S5P_CLKCON_SCLK0_UART, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_uart, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 13, .size = 1 }, - .reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 }, - }, { - .clk = { - .name = "spi_epll", - .id = 0, - .ctrlbit = S5P_CLKCON_SCLK0_SPI0, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 14, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 }, - }, { - .clk = { - .name = "spi_epll", - .id = 1, - .ctrlbit = S5P_CLKCON_SCLK0_SPI1, - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 }, - }, { - .clk = { - .name = "sclk_post", - .id = -1, - .ctrlbit = (1 << 10), - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC0, .shift = 26, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV1, .shift = 12, .size = 4 }, - }, { - .clk = { - .name = "sclk_dispcon", - .id = -1, - .ctrlbit = (1 << 1), - .enable = s5p6440_sclk1_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV3, .shift = 0, .size = 4 }, - }, { - .clk = { - .name = "sclk_fimgvg", - .id = -1, - .ctrlbit = (1 << 2), - .enable = s5p6440_sclk1_ctrl, - }, - .sources = &clkset_group1, - .reg_src = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 2 }, - .reg_div = { .reg = S5P_CLK_DIV3, .shift = 4, .size = 4 }, - }, { - .clk = { - .name = "sclk_audio2", - .id = -1, - .ctrlbit = (1 << 11), - .enable = s5p6440_sclk_ctrl, - }, - .sources = &clkset_audio, - .reg_src = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 3 }, - .reg_div = { .reg = S5P_CLK_DIV2, .shift = 24, .size = 4 }, - }, -}; - -/* Clock initialisation code */ -static struct clksrc_clk *sysclks[] = { - &clk_mout_apll, - &clk_mout_epll, - &clk_mout_mpll, - &clk_dout_mpll, - &clk_armclk, - &clk_hclk, - &clk_pclk, - &clk_hclk_low, - &clk_pclk_low, -}; - -void __init_or_cpufreq s5p6440_setup_clocks(void) -{ - struct clk *xtal_clk; - unsigned long xtal; - unsigned long fclk; - unsigned long hclk; - unsigned long hclk_low; - unsigned long pclk; - unsigned long pclk_low; - unsigned long epll; - unsigned long apll; - unsigned long mpll; - unsigned int ptr; - - /* Set S5P6440 functions for clk_fout_epll */ - clk_fout_epll.enable = s5p6440_epll_enable; - clk_fout_epll.ops = &s5p6440_epll_ops; - - clk_48m.enable = s5p6440_clk48m_ctrl; - - xtal_clk = clk_get(NULL, "ext_xtal"); - BUG_ON(IS_ERR(xtal_clk)); - - xtal = clk_get_rate(xtal_clk); - clk_put(xtal_clk); - - epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON), - __raw_readl(S5P_EPLL_CON_K)); - mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502); - apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4502); - - clk_fout_mpll.rate = mpll; - clk_fout_epll.rate = epll; - clk_fout_apll.rate = apll; - - printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \ - " E=%ld.%ldMHz\n", - print_mhz(apll), print_mhz(mpll), print_mhz(epll)); - - fclk = clk_get_rate(&clk_armclk.clk); - hclk = clk_get_rate(&clk_hclk.clk); - pclk = clk_get_rate(&clk_pclk.clk); - hclk_low = clk_get_rate(&clk_hclk_low.clk); - pclk_low = clk_get_rate(&clk_pclk_low.clk); - - printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \ - " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n", - print_mhz(hclk), print_mhz(hclk_low), - print_mhz(pclk), print_mhz(pclk_low)); - - clk_f.rate = fclk; - clk_h.rate = hclk; - clk_p.rate = pclk; - - for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) - s3c_set_clksrc(&clksrcs[ptr], true); -} - -static struct clk *clks[] __initdata = { - &clk_ext, - &clk_iis_cd_v40, - &clk_pcm_cd, -}; - -void __init s5p6440_register_clocks(void) -{ - struct clk *clkp; - int ret; - int ptr; - - ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks)); - if (ret > 0) - printk(KERN_ERR "Failed to register %u clocks\n", ret); - - for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++) - s3c_register_clksrc(sysclks[ptr], 1); - - s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); - s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks)); - - clkp = init_clocks_disable; - for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) { - - ret = s3c24xx_register_clock(clkp); - if (ret < 0) { - printk(KERN_ERR "Failed to register clock %s (%d)\n", - clkp->name, ret); - } - (clkp->enable)(clkp, 0); - } - - s3c_pwmclk_init(); -} |