From: Kukjin Kim Date: Wed, 1 Sep 2010 06:35:30 +0000 (+0900) Subject: ARM: S5P64X0: Update Clock for S5P6440 and S5P6450 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3109e55099cb013f9e1b63d39606dc5d7ecf25bd;p=linux-beck.git 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 --- 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 -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -/* 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(); -} diff --git a/arch/arm/mach-s5p6440/include/mach/regs-clock.h b/arch/arm/mach-s5p6440/include/mach/regs-clock.h deleted file mode 100644 index c783ecc9f193..000000000000 --- a/arch/arm/mach-s5p6440/include/mach/regs-clock.h +++ /dev/null @@ -1,130 +0,0 @@ -/* linux/arch/arm/mach-s5p6440/include/mach/regs-clock.h - * - * Copyright (c) 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P6440 - Clock register definitions - * - * 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. -*/ - -#ifndef __ASM_ARCH_REGS_CLOCK_H -#define __ASM_ARCH_REGS_CLOCK_H __FILE__ - -#include - -#define S5P_CLKREG(x) (S3C_VA_SYS + (x)) - -#define S5P_APLL_LOCK S5P_CLKREG(0x00) -#define S5P_MPLL_LOCK S5P_CLKREG(0x04) -#define S5P_EPLL_LOCK S5P_CLKREG(0x08) -#define S5P_APLL_CON S5P_CLKREG(0x0C) -#define S5P_MPLL_CON S5P_CLKREG(0x10) -#define S5P_EPLL_CON S5P_CLKREG(0x14) -#define S5P_EPLL_CON_K S5P_CLKREG(0x18) -#define S5P_CLK_SRC0 S5P_CLKREG(0x1C) -#define S5P_CLK_DIV0 S5P_CLKREG(0x20) -#define S5P_CLK_DIV1 S5P_CLKREG(0x24) -#define S5P_CLK_DIV2 S5P_CLKREG(0x28) -#define S5P_CLK_OUT S5P_CLKREG(0x2C) -#define S5P_CLK_GATE_HCLK0 S5P_CLKREG(0x30) -#define S5P_CLK_GATE_PCLK S5P_CLKREG(0x34) -#define S5P_CLK_GATE_SCLK0 S5P_CLKREG(0x38) -#define S5P_CLK_GATE_MEM0 S5P_CLKREG(0x3C) -#define S5P_CLK_DIV3 S5P_CLKREG(0x40) -#define S5P_CLK_GATE_HCLK1 S5P_CLKREG(0x44) -#define S5P_CLK_GATE_SCLK1 S5P_CLKREG(0x48) -#define S5P_AHB_CON0 S5P_CLKREG(0x100) -#define S5P_CLK_SRC1 S5P_CLKREG(0x10C) -#define S5P_SWRESET S5P_CLKREG(0x114) -#define S5P_SYS_ID S5P_CLKREG(0x118) -#define S5P_SYS_OTHERS S5P_CLKREG(0x11C) -#define S5P_MEM_CFG_STAT S5P_CLKREG(0x12C) -#define S5P_PWR_CFG S5P_CLKREG(0x804) -#define S5P_EINT_WAKEUP_MASK S5P_CLKREG(0x808) -#define S5P_NORMAL_CFG S5P_CLKREG(0x810) -#define S5P_STOP_CFG S5P_CLKREG(0x814) -#define S5P_SLEEP_CFG S5P_CLKREG(0x818) -#define S5P_OSC_FREQ S5P_CLKREG(0x820) -#define S5P_OSC_STABLE S5P_CLKREG(0x824) -#define S5P_PWR_STABLE S5P_CLKREG(0x828) -#define S5P_MTC_STABLE S5P_CLKREG(0x830) -#define S5P_OTHERS S5P_CLKREG(0x900) -#define S5P_RST_STAT S5P_CLKREG(0x904) -#define S5P_WAKEUP_STAT S5P_CLKREG(0x908) -#define S5P_SLPEN S5P_CLKREG(0x930) -#define S5P_INFORM0 S5P_CLKREG(0xA00) -#define S5P_INFORM1 S5P_CLKREG(0xA04) -#define S5P_INFORM2 S5P_CLKREG(0xA08) -#define S5P_INFORM3 S5P_CLKREG(0xA0C) - -/* CLKDIV0 */ -#define S5P_CLKDIV0_PCLK_MASK (0xf << 12) -#define S5P_CLKDIV0_PCLK_SHIFT (12) -#define S5P_CLKDIV0_HCLK_MASK (0xf << 8) -#define S5P_CLKDIV0_HCLK_SHIFT (8) -#define S5P_CLKDIV0_MPLL_MASK (0x1 << 4) -#define S5P_CLKDIV0_ARM_MASK (0xf << 0) -#define S5P_CLKDIV0_ARM_SHIFT (0) - -/* CLKDIV3 */ -#define S5P_CLKDIV3_PCLK_LOW_MASK (0xf << 12) -#define S5P_CLKDIV3_PCLK_LOW_SHIFT (12) -#define S5P_CLKDIV3_HCLK_LOW_MASK (0xf << 8) -#define S5P_CLKDIV3_HCLK_LOW_SHIFT (8) - -/* HCLK0 GATE Registers */ -#define S5P_CLKCON_HCLK0_USB (1<<20) -#define S5P_CLKCON_HCLK0_HSMMC2 (1<<19) -#define S5P_CLKCON_HCLK0_HSMMC1 (1<<18) -#define S5P_CLKCON_HCLK0_HSMMC0 (1<<17) -#define S5P_CLKCON_HCLK0_POST0 (1<<5) - -/* HCLK1 GATE Registers */ -#define S5P_CLKCON_HCLK1_DISPCON (1<<1) - -/* PCLK GATE Registers */ -#define S5P_CLKCON_PCLK_IIS2 (1<<26) -#define S5P_CLKCON_PCLK_SPI1 (1<<22) -#define S5P_CLKCON_PCLK_SPI0 (1<<21) -#define S5P_CLKCON_PCLK_GPIO (1<<18) -#define S5P_CLKCON_PCLK_IIC0 (1<<17) -#define S5P_CLKCON_PCLK_TSADC (1<<12) -#define S5P_CLKCON_PCLK_PWM (1<<7) -#define S5P_CLKCON_PCLK_RTC (1<<6) -#define S5P_CLKCON_PCLK_WDT (1<<5) -#define S5P_CLKCON_PCLK_UART3 (1<<4) -#define S5P_CLKCON_PCLK_UART2 (1<<3) -#define S5P_CLKCON_PCLK_UART1 (1<<2) -#define S5P_CLKCON_PCLK_UART0 (1<<1) - -/* SCLK0 GATE Registers */ -#define S5P_CLKCON_SCLK0_MMC2_48 (1<<29) -#define S5P_CLKCON_SCLK0_MMC1_48 (1<<28) -#define S5P_CLKCON_SCLK0_MMC0_48 (1<<27) -#define S5P_CLKCON_SCLK0_MMC2 (1<<26) -#define S5P_CLKCON_SCLK0_MMC1 (1<<25) -#define S5P_CLKCON_SCLK0_MMC0 (1<<24) -#define S5P_CLKCON_SCLK0_SPI1_48 (1<<23) -#define S5P_CLKCON_SCLK0_SPI0_48 (1<<22) -#define S5P_CLKCON_SCLK0_SPI1 (1<<21) -#define S5P_CLKCON_SCLK0_SPI0 (1<<20) -#define S5P_CLKCON_SCLK0_UART (1<<5) - -/* SCLK1 GATE Registers */ - -/* MEM0 GATE Registers */ -#define S5P_CLKCON_MEM0_HCLK_NFCON (1<<2) - -/*OTHERS Resgister */ -#define S5P_OTHERS_USB_SIG_MASK (1<<16) -#define S5P_OTHERS_HCLK_LOW_SEL_MPLL (1<<6) - -/* Compatibility defines */ -#define ARM_CLK_DIV S5P_CLK_DIV0 -#define ARM_DIV_RATIO_SHIFT 0 -#define ARM_DIV_MASK (0xf << ARM_DIV_RATIO_SHIFT) - -#endif /* __ASM_ARCH_REGS_CLOCK_H */ diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c new file mode 100644 index 000000000000..f93dcd8b4d6a --- /dev/null +++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c @@ -0,0 +1,626 @@ +/* linux/arch/arm/mach-s5p64x0/clock-s5p6440.c + * + * Copyright (c) 2009-2010 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +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(S5P64X0_EPLL_CON); + epll_con_k = __raw_readl(S5P64X0_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, S5P64X0_EPLL_CON); + __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K); + + clk->rate = rate; + + return 0; +} + +static struct clk_ops s5p6440_epll_ops = { + .get_rate = s5p64x0_epll_get_rate, + .set_rate = s5p6440_epll_set_rate, +}; + +static struct clksrc_clk clk_hclk = { + .clk = { + .name = "clk_hclk", + .id = -1, + .parent = &clk_armclk.clk, + }, + .reg_div = { .reg = S5P64X0_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 = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 }, +}; +static struct clksrc_clk clk_hclk_low = { + .clk = { + .name = "clk_hclk_low", + .id = -1, + }, + .sources = &clkset_hclk_low, + .reg_src = { .reg = S5P64X0_SYS_OTHERS, .shift = 6, .size = 1 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 }, +}; + +static struct clksrc_clk clk_pclk_low = { + .clk = { + .name = "clk_pclk_low", + .id = -1, + .parent = &clk_hclk_low.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 }, +}; + +/* + * 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 = s5p64x0_mem_ctrl, + .ctrlbit = (1 << 2), + }, { + .name = "post", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 5) + }, { + .name = "2d", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 8), + }, { + .name = "hsmmc", + .id = 0, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 17), + }, { + .name = "hsmmc", + .id = 1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 18), + }, { + .name = "hsmmc", + .id = 2, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 19), + }, { + .name = "otg", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 20) + }, { + .name = "irom", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 25), + }, { + .name = "lcd", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk1_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "hclk_fimgvg", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk1_ctrl, + .ctrlbit = (1 << 2), + }, { + .name = "tsi", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk1_ctrl, + .ctrlbit = (1 << 0), + }, { + .name = "watchdog", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 5), + }, { + .name = "rtc", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 6), + }, { + .name = "timers", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 7), + }, { + .name = "pcm", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 8), + }, { + .name = "adc", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 12), + }, { + .name = "i2c", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 17), + }, { + .name = "spi", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 21), + }, { + .name = "spi", + .id = 1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 22), + }, { + .name = "gps", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 25), + }, { + .name = "i2s_v40", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 26), + }, { + .name = "dsim", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 28), + }, { + .name = "etm", + .id = -1, + .parent = &clk_pclk.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 29), + }, { + .name = "dmc0", + .id = -1, + .parent = &clk_pclk.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 30), + }, { + .name = "pclk_fimgvg", + .id = -1, + .parent = &clk_pclk.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 31), + }, { + .name = "sclk_spi_48", + .id = 0, + .parent = &clk_48m, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 22), + }, { + .name = "sclk_spi_48", + .id = 1, + .parent = &clk_48m, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 23), + }, { + .name = "mmc_48m", + .id = 0, + .parent = &clk_48m, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 27), + }, { + .name = "mmc_48m", + .id = 1, + .parent = &clk_48m, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 28), + }, { + .name = "mmc_48m", + .id = 2, + .parent = &clk_48m, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 29), + }, +}; + +/* + * The following clocks will be enabled during clock initialization. + */ +static struct clk init_clocks[] = { + { + .name = "intc", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "mem", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 21), + }, { + .name = "dma", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 12), + }, { + .name = "uart", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "uart", + .id = 1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 2), + }, { + .name = "uart", + .id = 2, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 3), + }, { + .name = "uart", + .id = 3, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 4), + }, { + .name = "gpio", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 18), + }, +}; + +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 = (1 << 24), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "mmc_bus", + .id = 1, + .ctrlbit = (1 << 25), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "mmc_bus", + .id = 2, + .ctrlbit = (1 << 26), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 }, + }, { + .clk = { + .name = "uclk1", + .id = -1, + .ctrlbit = (1 << 5), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_uart, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 }, + }, { + .clk = { + .name = "sclk_spi", + .id = 0, + .ctrlbit = (1 << 20), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "sclk_spi", + .id = 1, + .ctrlbit = (1 << 21), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "sclk_post", + .id = -1, + .ctrlbit = (1 << 10), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 }, + }, { + .clk = { + .name = "sclk_dispcon", + .id = -1, + .ctrlbit = (1 << 1), + .enable = s5p64x0_sclk1_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "sclk_fimgvg", + .id = -1, + .ctrlbit = (1 << 2), + .enable = s5p64x0_sclk1_ctrl, + }, + .sources = &clkset_group1, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "sclk_audio2", + .id = -1, + .ctrlbit = (1 << 11), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_audio, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 0, .size = 3 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 24, .size = 4 }, + }, +}; + +/* Clock initialization 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 apll; + unsigned long mpll; + unsigned long epll; + unsigned int ptr; + + /* Set S5P6440 functions for clk_fout_epll */ + + clk_fout_epll.enable = s5p64x0_epll_enable; + clk_fout_epll.ops = &s5p6440_epll_ops; + + clk_48m.enable = s5p64x0_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); + + apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502); + mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502); + epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON), + __raw_readl(S5P64X0_EPLL_CON_K)); + + clk_fout_apll.rate = apll; + clk_fout_mpll.rate = mpll; + clk_fout_epll.rate = epll; + + 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; + + s3c24xx_register_clocks(clks, ARRAY_SIZE(clks)); + + 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(); +} diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c new file mode 100644 index 000000000000..f9afb05b217c --- /dev/null +++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c @@ -0,0 +1,655 @@ +/* linux/arch/arm/mach-s5p64x0/clock-s5p6450.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * S5P6450 - 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +static struct clksrc_clk clk_mout_dpll = { + .clk = { + .name = "mout_dpll", + .id = -1, + }, + .sources = &clk_src_dpll, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 5, .size = 1 }, +}; + +static u32 epll_div[][5] = { + { 133000000, 27307, 55, 2, 2 }, + { 100000000, 43691, 41, 2, 2 }, + { 480000000, 0, 80, 2, 0 }, +}; + +static int s5p6450_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(S5P64X0_EPLL_CON); + epll_con_k = __raw_readl(S5P64X0_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, S5P64X0_EPLL_CON); + __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K); + + clk->rate = rate; + + return 0; +} + +static struct clk_ops s5p6450_epll_ops = { + .get_rate = s5p64x0_epll_get_rate, + .set_rate = s5p6450_epll_set_rate, +}; + +static struct clksrc_clk clk_dout_epll = { + .clk = { + .name = "dout_epll", + .id = -1, + .parent = &clk_mout_epll.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 24, .size = 4 }, +}; + +static struct clksrc_clk clk_mout_hclk_sel = { + .clk = { + .name = "mout_hclk_sel", + .id = -1, + }, + .sources = &clkset_hclk_low, + .reg_src = { .reg = S5P64X0_OTHERS, .shift = 15, .size = 1 }, +}; + +static struct clk *clkset_hclk_list[] = { + &clk_mout_hclk_sel.clk, + &clk_armclk.clk, +}; + +static struct clksrc_sources clkset_hclk = { + .sources = clkset_hclk_list, + .nr_sources = ARRAY_SIZE(clkset_hclk_list), +}; + +static struct clksrc_clk clk_hclk = { + .clk = { + .name = "clk_hclk", + .id = -1, + }, + .sources = &clkset_hclk, + .reg_src = { .reg = S5P64X0_OTHERS, .shift = 14, .size = 1 }, + .reg_div = { .reg = S5P64X0_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 = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 }, +}; +static struct clksrc_clk clk_dout_pwm_ratio0 = { + .clk = { + .name = "clk_dout_pwm_ratio0", + .id = -1, + .parent = &clk_mout_hclk_sel.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 16, .size = 4 }, +}; + +static struct clksrc_clk clk_pclk_to_wdt_pwm = { + .clk = { + .name = "clk_pclk_to_wdt_pwm", + .id = -1, + .parent = &clk_dout_pwm_ratio0.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 20, .size = 4 }, +}; + +static struct clksrc_clk clk_hclk_low = { + .clk = { + .name = "clk_hclk_low", + .id = -1, + }, + .sources = &clkset_hclk_low, + .reg_src = { .reg = S5P64X0_OTHERS, .shift = 6, .size = 1 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 }, +}; + +static struct clksrc_clk clk_pclk_low = { + .clk = { + .name = "clk_pclk_low", + .id = -1, + .parent = &clk_hclk_low.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 }, +}; + +/* + * 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 = "usbhost", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 3), + }, { + .name = "hsmmc", + .id = 0, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 17), + }, { + .name = "hsmmc", + .id = 1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 18), + }, { + .name = "hsmmc", + .id = 2, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 19), + }, { + .name = "usbotg", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 20), + }, { + .name = "lcd", + .id = -1, + .parent = &clk_h, + .enable = s5p64x0_hclk1_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "watchdog", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 5), + }, { + .name = "adc", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 12), + }, { + .name = "i2c", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 17), + }, { + .name = "spi", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 21), + }, { + .name = "spi", + .id = 1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 22), + }, { + .name = "iis", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 26), + }, { + .name = "i2c", + .id = 1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 27), + }, { + .name = "dmc0", + .id = -1, + .parent = &clk_pclk.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 30), + } +}; + +/* + * The following clocks will be enabled during clock initialization. + */ +static struct clk init_clocks[] = { + { + .name = "intc", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "mem", + .id = -1, + .parent = &clk_hclk.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 21), + }, { + .name = "dma", + .id = -1, + .parent = &clk_hclk_low.clk, + .enable = s5p64x0_hclk0_ctrl, + .ctrlbit = (1 << 12), + }, { + .name = "uart", + .id = 0, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 1), + }, { + .name = "uart", + .id = 1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 2), + }, { + .name = "uart", + .id = 2, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 3), + }, { + .name = "uart", + .id = 3, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 4), + }, { + .name = "timers", + .id = -1, + .parent = &clk_pclk_to_wdt_pwm.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 7), + }, { + .name = "gpio", + .id = -1, + .parent = &clk_pclk_low.clk, + .enable = s5p64x0_pclk_ctrl, + .ctrlbit = (1 << 18), + }, +}; + +static struct clk *clkset_uart_list[] = { + &clk_dout_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_mali_list[] = { + &clk_mout_epll.clk, + &clk_mout_apll.clk, + &clk_mout_mpll.clk, +}; + +static struct clksrc_sources clkset_mali = { + .sources = clkset_mali_list, + .nr_sources = ARRAY_SIZE(clkset_mali_list), +}; + +static struct clk *clkset_group2_list[] = { + &clk_dout_epll.clk, + &clk_dout_mpll.clk, + &clk_ext_xtal_mux, +}; + +static struct clksrc_sources clkset_group2 = { + .sources = clkset_group2_list, + .nr_sources = ARRAY_SIZE(clkset_group2_list), +}; + +static struct clk *clkset_dispcon_list[] = { + &clk_dout_epll.clk, + &clk_dout_mpll.clk, + &clk_ext_xtal_mux, + &clk_mout_dpll.clk, +}; + +static struct clksrc_sources clkset_dispcon = { + .sources = clkset_dispcon_list, + .nr_sources = ARRAY_SIZE(clkset_dispcon_list), +}; + +static struct clk *clkset_hsmmc44_list[] = { + &clk_dout_epll.clk, + &clk_dout_mpll.clk, + &clk_ext_xtal_mux, + &s5p_clk_27m, + &clk_48m, +}; + +static struct clksrc_sources clkset_hsmmc44 = { + .sources = clkset_hsmmc44_list, + .nr_sources = ARRAY_SIZE(clkset_hsmmc44_list), +}; + +static struct clk *clkset_sclk_audio0_list[] = { + [0] = &clk_dout_epll.clk, + [1] = &clk_dout_mpll.clk, + [2] = &clk_ext_xtal_mux, + [3] = NULL, + [4] = NULL, +}; + +static struct clksrc_sources clkset_sclk_audio0 = { + .sources = clkset_sclk_audio0_list, + .nr_sources = ARRAY_SIZE(clkset_sclk_audio0_list), +}; + +static struct clksrc_clk clk_sclk_audio0 = { + .clk = { + .name = "audio-bus", + .id = -1, + .enable = s5p64x0_sclk_ctrl, + .ctrlbit = (1 << 8), + .parent = &clk_dout_epll.clk, + }, + .sources = &clkset_sclk_audio0, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 10, .size = 3 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 8, .size = 4 }, +}; + +static struct clksrc_clk clksrcs[] = { + { + .clk = { + .name = "sclk_mmc", + .id = 0, + .ctrlbit = (1 << 24), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "sclk_mmc", + .id = 1, + .ctrlbit = (1 << 25), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "sclk_mmc", + .id = 2, + .ctrlbit = (1 << 26), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 }, + }, { + .clk = { + .name = "uclk1", + .id = -1, + .ctrlbit = (1 << 5), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_uart, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 }, + }, { + .clk = { + .name = "sclk_spi", + .id = 0, + .ctrlbit = (1 << 20), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "sclk_spi", + .id = 1, + .ctrlbit = (1 << 21), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "sclk_fimc", + .id = -1, + .ctrlbit = (1 << 10), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 }, + }, { + .clk = { + .name = "aclk_mali", + .id = -1, + .ctrlbit = (1 << 2), + .enable = s5p64x0_sclk1_ctrl, + }, + .sources = &clkset_mali, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 }, + }, { + .clk = { + .name = "sclk_2d", + .id = -1, + .ctrlbit = (1 << 12), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_mali, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 30, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 20, .size = 4 }, + }, { + .clk = { + .name = "sclk_usi", + .id = -1, + .ctrlbit = (1 << 7), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 10, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 16, .size = 4 }, + }, { + .clk = { + .name = "sclk_camif", + .id = -1, + .ctrlbit = (1 << 6), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_group2, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 28, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 20, .size = 4 }, + }, { + .clk = { + .name = "sclk_dispcon", + .id = -1, + .ctrlbit = (1 << 1), + .enable = s5p64x0_sclk1_ctrl, + }, + .sources = &clkset_dispcon, + .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 }, + .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 }, + }, { + .clk = { + .name = "sclk_hsmmc44", + .id = -1, + .ctrlbit = (1 << 30), + .enable = s5p64x0_sclk_ctrl, + }, + .sources = &clkset_hsmmc44, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 6, .size = 3 }, + .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 28, .size = 4 }, + }, +}; + +/* Clock initialization code */ +static struct clksrc_clk *sysclks[] = { + &clk_mout_apll, + &clk_mout_epll, + &clk_dout_epll, + &clk_mout_mpll, + &clk_dout_mpll, + &clk_armclk, + &clk_mout_hclk_sel, + &clk_dout_pwm_ratio0, + &clk_pclk_to_wdt_pwm, + &clk_hclk, + &clk_pclk, + &clk_hclk_low, + &clk_pclk_low, + &clk_sclk_audio0, +}; + +void __init_or_cpufreq s5p6450_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 apll; + unsigned long mpll; + unsigned long epll; + unsigned long dpll; + unsigned int ptr; + + /* Set S5P6450 functions for clk_fout_epll */ + + clk_fout_epll.enable = s5p64x0_epll_enable; + clk_fout_epll.ops = &s5p6450_epll_ops; + + clk_48m.enable = s5p64x0_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); + + apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502); + mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502); + epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON), + __raw_readl(S5P64X0_EPLL_CON_K)); + dpll = s5p_get_pll46xx(xtal, __raw_readl(S5P6450_DPLL_CON), + __raw_readl(S5P6450_DPLL_CON_K), pll_4650c); + + clk_fout_apll.rate = apll; + clk_fout_mpll.rate = mpll; + clk_fout_epll.rate = epll; + clk_fout_dpll.rate = dpll; + + printk(KERN_INFO "S5P6450: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \ + " E=%ld.%ldMHz, D=%ld.%ldMHz\n", + print_mhz(apll), print_mhz(mpll), print_mhz(epll), + print_mhz(dpll)); + + 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 "S5P6450: 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); +} + +void __init s5p6450_register_clocks(void) +{ + struct clk *clkp; + int ret; + int ptr; + + 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(); +} diff --git a/arch/arm/mach-s5p64x0/clock.c b/arch/arm/mach-s5p64x0/clock.c new file mode 100644 index 000000000000..523ba8039ac2 --- /dev/null +++ b/arch/arm/mach-s5p64x0/clock.c @@ -0,0 +1,253 @@ +/* linux/arch/arm/mach-s5p64x0/clock.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * S5P64X0 - 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +struct clksrc_clk clk_mout_apll = { + .clk = { + .name = "mout_apll", + .id = -1, + }, + .sources = &clk_src_apll, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 0, .size = 1 }, +}; + +struct clksrc_clk clk_mout_mpll = { + .clk = { + .name = "mout_mpll", + .id = -1, + }, + .sources = &clk_src_mpll, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 1, .size = 1 }, +}; + +struct clksrc_clk clk_mout_epll = { + .clk = { + .name = "mout_epll", + .id = -1, + }, + .sources = &clk_src_epll, + .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 2, .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 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, + {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, + {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, +}; + +int s5p64x0_epll_enable(struct clk *clk, int enable) +{ + unsigned int ctrlbit = clk->ctrlbit; + unsigned int epll_con = __raw_readl(S5P64X0_EPLL_CON) & ~ctrlbit; + + if (enable) + __raw_writel(epll_con | ctrlbit, S5P64X0_EPLL_CON); + else + __raw_writel(epll_con, S5P64X0_EPLL_CON); + + return 0; +} + +unsigned long s5p64x0_epll_get_rate(struct clk *clk) +{ + return clk->rate; +} + +unsigned long s5p64x0_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); +} + +unsigned long s5p64x0_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]; +} + +int s5p64x0_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) & + ~(S5P64X0_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) & + ~(S5P64X0_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; +} + +struct clk_ops s5p64x0_clkarm_ops = { + .get_rate = s5p64x0_armclk_get_rate, + .set_rate = s5p64x0_armclk_set_rate, + .round_rate = s5p64x0_armclk_round_rate, +}; + +struct clksrc_clk clk_armclk = { + .clk = { + .name = "armclk", + .id = 1, + .parent = &clk_mout_apll.clk, + .ops = &s5p64x0_clkarm_ops, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 0, .size = 4 }, +}; + +struct clksrc_clk clk_dout_mpll = { + .clk = { + .name = "dout_mpll", + .id = -1, + .parent = &clk_mout_mpll.clk, + }, + .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 4, .size = 1 }, +}; + +struct clk *clkset_hclk_low_list[] = { + &clk_mout_apll.clk, + &clk_mout_mpll.clk, +}; + +struct clksrc_sources clkset_hclk_low = { + .sources = clkset_hclk_low_list, + .nr_sources = ARRAY_SIZE(clkset_hclk_low_list), +}; + +int s5p64x0_pclk_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_PCLK, clk, enable); +} + +int s5p64x0_hclk0_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK0, clk, enable); +} + +int s5p64x0_hclk1_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK1, clk, enable); +} + +int s5p64x0_sclk_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK0, clk, enable); +} + +int s5p64x0_sclk1_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK1, clk, enable); +} + +int s5p64x0_mem_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P64X0_CLK_GATE_MEM0, clk, enable); +} + +int s5p64x0_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(S5P64X0_OTHERS); + if (enable) + val |= S5P64X0_OTHERS_USB_SIG_MASK; + else + val &= ~S5P64X0_OTHERS_USB_SIG_MASK; + + __raw_writel(val, S5P64X0_OTHERS); + + local_irq_restore(flags); + + return 0; +} diff --git a/arch/arm/mach-s5p64x0/include/mach/regs-clock.h b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h new file mode 100644 index 000000000000..58e1bc813804 --- /dev/null +++ b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h @@ -0,0 +1,63 @@ +/* linux/arch/arm/mach-s5p64x0/include/mach/regs-clock.h + * + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * S5P64X0 - Clock register definitions + * + * 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. +*/ + +#ifndef __ASM_ARCH_REGS_CLOCK_H +#define __ASM_ARCH_REGS_CLOCK_H __FILE__ + +#include + +#define S5P_CLKREG(x) (S3C_VA_SYS + (x)) + +#define S5P64X0_APLL_CON S5P_CLKREG(0x0C) +#define S5P64X0_MPLL_CON S5P_CLKREG(0x10) +#define S5P64X0_EPLL_CON S5P_CLKREG(0x14) +#define S5P64X0_EPLL_CON_K S5P_CLKREG(0x18) + +#define S5P64X0_CLK_SRC0 S5P_CLKREG(0x1C) + +#define S5P64X0_CLK_DIV0 S5P_CLKREG(0x20) +#define S5P64X0_CLK_DIV1 S5P_CLKREG(0x24) +#define S5P64X0_CLK_DIV2 S5P_CLKREG(0x28) + +#define S5P64X0_CLK_GATE_HCLK0 S5P_CLKREG(0x30) +#define S5P64X0_CLK_GATE_PCLK S5P_CLKREG(0x34) +#define S5P64X0_CLK_GATE_SCLK0 S5P_CLKREG(0x38) +#define S5P64X0_CLK_GATE_MEM0 S5P_CLKREG(0x3C) + +#define S5P64X0_CLK_DIV3 S5P_CLKREG(0x40) + +#define S5P64X0_CLK_GATE_HCLK1 S5P_CLKREG(0x44) +#define S5P64X0_CLK_GATE_SCLK1 S5P_CLKREG(0x48) + +#define S5P6450_DPLL_CON S5P_CLKREG(0x50) +#define S5P6450_DPLL_CON_K S5P_CLKREG(0x54) + +#define S5P64X0_CLK_SRC1 S5P_CLKREG(0x10C) + +#define S5P64X0_SYS_ID S5P_CLKREG(0x118) +#define S5P64X0_SYS_OTHERS S5P_CLKREG(0x11C) + +#define S5P64X0_PWR_CFG S5P_CLKREG(0x804) +#define S5P64X0_OTHERS S5P_CLKREG(0x900) + +#define S5P64X0_CLKDIV0_HCLK_SHIFT (8) +#define S5P64X0_CLKDIV0_HCLK_MASK (0xF << S5P64X0_CLKDIV0_HCLK_SHIFT) + +#define S5P64X0_OTHERS_USB_SIG_MASK (1 << 16) + +/* Compatibility defines */ + +#define ARM_CLK_DIV S5P64X0_CLK_DIV0 +#define ARM_DIV_RATIO_SHIFT 0 +#define ARM_DIV_MASK (0xF << ARM_DIV_RATIO_SHIFT) + +#endif /* __ASM_ARCH_REGS_CLOCK_H */ diff --git a/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h b/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h new file mode 100644 index 000000000000..ff85b4b6e8d9 --- /dev/null +++ b/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h @@ -0,0 +1,46 @@ +/* linux/arch/arm/mach-s5p64x0/include/mach/s5p64x0-clock.h + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Header file for s5p64x0 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. +*/ + +#ifndef __ASM_ARCH_CLOCK_H +#define __ASM_ARCH_CLOCK_H __FILE__ + +#include + +extern struct clksrc_clk clk_mout_apll; +extern struct clksrc_clk clk_mout_mpll; +extern struct clksrc_clk clk_mout_epll; + +extern int s5p64x0_epll_enable(struct clk *clk, int enable); +extern unsigned long s5p64x0_epll_get_rate(struct clk *clk); + +extern unsigned long s5p64x0_armclk_get_rate(struct clk *clk); +extern unsigned long s5p64x0_armclk_round_rate(struct clk *clk, unsigned long rate); +extern int s5p64x0_armclk_set_rate(struct clk *clk, unsigned long rate); + +extern struct clk_ops s5p64x0_clkarm_ops; + +extern struct clksrc_clk clk_armclk; +extern struct clksrc_clk clk_dout_mpll; + +extern struct clk *clkset_hclk_low_list[]; +extern struct clksrc_sources clkset_hclk_low; + +extern int s5p64x0_pclk_ctrl(struct clk *clk, int enable); +extern int s5p64x0_hclk0_ctrl(struct clk *clk, int enable); +extern int s5p64x0_hclk1_ctrl(struct clk *clk, int enable); +extern int s5p64x0_sclk_ctrl(struct clk *clk, int enable); +extern int s5p64x0_sclk1_ctrl(struct clk *clk, int enable); +extern int s5p64x0_mem_ctrl(struct clk *clk, int enable); + +extern int s5p64x0_clk48m_ctrl(struct clk *clk, int enable); + +#endif /* __ASM_ARCH_CLOCK_H */ diff --git a/arch/arm/plat-s5p/clock.c b/arch/arm/plat-s5p/clock.c index b5e255265f20..8aaf4e6b60c3 100644 --- a/arch/arm/plat-s5p/clock.c +++ b/arch/arm/plat-s5p/clock.c @@ -74,6 +74,13 @@ struct clk clk_fout_epll = { .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", @@ -122,6 +129,17 @@ struct clksrc_sources clk_src_epll = { .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, @@ -145,6 +163,7 @@ static struct clk *s5p_clks[] __initdata = { &clk_fout_apll, &clk_fout_mpll, &clk_fout_epll, + &clk_fout_dpll, &clk_fout_vpll, &clk_arm, &clk_vpll, diff --git a/arch/arm/plat-s5p/include/plat/pll.h b/arch/arm/plat-s5p/include/plat/pll.h index 4e8fe08cb70d..bf28fadee7ae 100644 --- a/arch/arm/plat-s5p/include/plat/pll.h +++ b/arch/arm/plat-s5p/include/plat/pll.h @@ -47,6 +47,7 @@ static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con, } #define PLL46XX_KDIV_MASK (0xFFFF) +#define PLL4650C_KDIV_MASK (0xFFF) #define PLL46XX_MDIV_MASK (0x1FF) #define PLL46XX_PDIV_MASK (0x3F) #define PLL46XX_SDIV_MASK (0x7) @@ -57,6 +58,7 @@ static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con, enum pll46xx_type_t { pll_4600, pll_4650, + pll_4650c, }; static inline unsigned long s5p_get_pll46xx(unsigned long baseclk, @@ -72,6 +74,11 @@ static inline unsigned long s5p_get_pll46xx(unsigned long baseclk, sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK; kdiv = pll_con1 & PLL46XX_KDIV_MASK; + if (pll_type == pll_4650c) + kdiv = pll_con1 & PLL4650C_KDIV_MASK; + else + kdiv = pll_con1 & PLL46XX_KDIV_MASK; + tmp = baseclk; if (pll_type == pll_4600) { diff --git a/arch/arm/plat-s5p/include/plat/s5p-clock.h b/arch/arm/plat-s5p/include/plat/s5p-clock.h index 09418b1101fe..17036c898409 100644 --- a/arch/arm/plat-s5p/include/plat/s5p-clock.h +++ b/arch/arm/plat-s5p/include/plat/s5p-clock.h @@ -1,7 +1,7 @@ /* linux/arch/arm/plat-s5p/include/plat/s5p-clock.h * - * Copyright 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com * * Header file for s5p clock support * @@ -20,6 +20,7 @@ #define clk_fin_apll clk_ext_xtal_mux #define clk_fin_mpll clk_ext_xtal_mux #define clk_fin_epll clk_ext_xtal_mux +#define clk_fin_dpll clk_ext_xtal_mux #define clk_fin_vpll clk_ext_xtal_mux #define clk_fin_hpll clk_ext_xtal_mux @@ -30,6 +31,7 @@ extern struct clk s5p_clk_27m; extern struct clk clk_fout_apll; extern struct clk clk_fout_mpll; extern struct clk clk_fout_epll; +extern struct clk clk_fout_dpll; extern struct clk clk_fout_vpll; extern struct clk clk_arm; extern struct clk clk_vpll; @@ -37,8 +39,8 @@ extern struct clk clk_vpll; extern struct clksrc_sources clk_src_apll; extern struct clksrc_sources clk_src_mpll; extern struct clksrc_sources clk_src_epll; +extern struct clksrc_sources clk_src_dpll; -extern int s5p6440_clk48m_ctrl(struct clk *clk, int enable); extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable); #endif /* __ASM_PLAT_S5P_CLOCK_H */