+++ /dev/null
-/* 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();
-}
projects / mv-sheeva.git / blobdiff