diff options
Diffstat (limited to 'arch/arm/plat-s5pc1xx/s5pc100-clock.c')
| -rw-r--r-- | arch/arm/plat-s5pc1xx/s5pc100-clock.c | 1139 |
1 files changed, 0 insertions, 1139 deletions
diff --git a/arch/arm/plat-s5pc1xx/s5pc100-clock.c b/arch/arm/plat-s5pc1xx/s5pc100-clock.c deleted file mode 100644 index 6b24035172f..00000000000 --- a/arch/arm/plat-s5pc1xx/s5pc100-clock.c +++ /dev/null @@ -1,1139 +0,0 @@ -/* linux/arch/arm/plat-s5pc1xx/s5pc100-clock.c - * - * Copyright 2009 Samsung Electronics, Co. - * Byungho Min <bhmin@samsung.com> - * - * S5PC100 based common clock support - * - * Based on plat-s3c64xx/s3c6400-clock.c - * - * 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 <plat/regs-clock.h> -#include <plat/clock.h> -#include <plat/cpu.h> -#include <plat/pll.h> -#include <plat/devs.h> -#include <plat/s5pc100.h> - -/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call - * ext_xtal_mux for want of an actual name from the manual. -*/ - -static struct clk clk_ext_xtal_mux = { - .name = "ext_xtal", - .id = -1, -}; - -#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_hpll clk_ext_xtal_mux - -#define clk_fout_mpll clk_mpll - -struct clk_sources { - unsigned int nr_sources; - struct clk **sources; -}; - -struct clksrc_clk { - struct clk clk; - unsigned int mask; - unsigned int shift; - - struct clk_sources *sources; - - unsigned int divider_shift; - void __iomem *reg_divider; - void __iomem *reg_source; -}; - -static int clk_default_setrate(struct clk *clk, unsigned long rate) -{ - clk->rate = rate; - return 1; -} - -struct clk clk_27m = { - .name = "clk_27m", - .id = -1, - .rate = 27000000, -}; - -static int clk_48m_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(S5PC1XX_CLK_SRC1); - if (enable) - val |= S5PC100_CLKSRC1_CLK48M_MASK; - else - val &= ~S5PC100_CLKSRC1_CLK48M_MASK; - - __raw_writel(val, S5PC1XX_CLK_SRC1); - local_irq_restore(flags); - - return 0; -} - -struct clk clk_48m = { - .name = "clk_48m", - .id = -1, - .rate = 48000000, - .enable = clk_48m_ctrl, -}; - -struct clk clk_54m = { - .name = "clk_54m", - .id = -1, - .rate = 54000000, -}; - -struct clk clk_hpll = { - .name = "hpll", - .id = -1, -}; - -struct clk clk_hd0 = { - .name = "hclkd0", - .id = -1, - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .set_rate = clk_default_setrate, -}; - -struct clk clk_pd0 = { - .name = "pclkd0", - .id = -1, - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .set_rate = clk_default_setrate, -}; - -static int s5pc1xx_clk_gate(void __iomem *reg, - struct clk *clk, - int enable) -{ - unsigned int ctrlbit = clk->ctrlbit; - u32 con; - - con = __raw_readl(reg); - - if (enable) - con |= ctrlbit; - else - con &= ~ctrlbit; - - __raw_writel(con, reg); - return 0; -} - -static int s5pc1xx_clk_d00_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D00, clk, enable); -} - -static int s5pc1xx_clk_d01_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D01, clk, enable); -} - -static int s5pc1xx_clk_d02_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D02, clk, enable); -} - -static int s5pc1xx_clk_d10_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D10, clk, enable); -} - -static int s5pc1xx_clk_d11_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D11, clk, enable); -} - -static int s5pc1xx_clk_d12_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D12, clk, enable); -} - -static int s5pc1xx_clk_d13_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D13, clk, enable); -} - -static int s5pc1xx_clk_d14_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D14, clk, enable); -} - -static int s5pc1xx_clk_d15_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D15, clk, enable); -} - -static int s5pc1xx_clk_d20_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D20, clk, enable); -} - -int s5pc1xx_sclk0_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_SCLKGATE0, clk, enable); -} - -int s5pc1xx_sclk1_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_SCLKGATE1, clk, enable); -} - -static struct clk init_clocks_disable[] = { - { - .name = "dsi", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_DSI, - }, { - .name = "csi", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_CSI, - }, { - .name = "ccan0", - .id = 0, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_CCAN0, - }, { - .name = "ccan1", - .id = 1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_CCAN1, - }, { - .name = "keypad", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_KEYIF, - }, { - .name = "hclkd2", - .id = -1, - .parent = NULL, - .enable = s5pc1xx_clk_d20_ctrl, - .ctrlbit = S5PC100_CLKGATE_D20_HCLKD2, - }, { - .name = "iis-d2", - .id = -1, - .parent = NULL, - .enable = s5pc1xx_clk_d20_ctrl, - .ctrlbit = S5PC100_CLKGATE_D20_I2SD2, - }, { - .name = "otg", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_USBOTG, - }, -}; - -static struct clk init_clocks[] = { - /* System1 (D0_0) devices */ - { - .name = "intc", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_INTC, - }, { - .name = "tzic", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_TZIC, - }, { - .name = "cf-ata", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_CFCON, - }, { - .name = "mdma", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_MDMA, - }, { - .name = "g2d", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_G2D, - }, { - .name = "secss", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_SECSS, - }, { - .name = "cssys", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d00_ctrl, - .ctrlbit = S5PC100_CLKGATE_D00_CSSYS, - }, - - /* Memory (D0_1) devices */ - { - .name = "dmc", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_DMC, - }, { - .name = "sromc", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_SROMC, - }, { - .name = "onenand", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_ONENAND, - }, { - .name = "nand", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_NFCON, - }, { - .name = "intmem", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_INTMEM, - }, { - .name = "ebi", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d01_ctrl, - .ctrlbit = S5PC100_CLKGATE_D01_EBI, - }, - - /* System2 (D0_2) devices */ - { - .name = "seckey", - .id = -1, - .parent = &clk_pd0, - .enable = s5pc1xx_clk_d02_ctrl, - .ctrlbit = S5PC100_CLKGATE_D02_SECKEY, - }, { - .name = "sdm", - .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d02_ctrl, - .ctrlbit = S5PC100_CLKGATE_D02_SDM, - }, - - /* File (D1_0) devices */ - { - .name = "pdma0", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_PDMA0, - }, { - .name = "pdma1", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_PDMA1, - }, { - .name = "usb-host", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_USBHOST, - }, { - .name = "modem", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_MODEMIF, - }, { - .name = "hsmmc", - .id = 0, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_HSMMC0, - }, { - .name = "hsmmc", - .id = 1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_HSMMC1, - }, { - .name = "hsmmc", - .id = 2, - .parent = &clk_h, - .enable = s5pc1xx_clk_d10_ctrl, - .ctrlbit = S5PC100_CLKGATE_D10_HSMMC2, - }, - - /* Multimedia1 (D1_1) devices */ - { - .name = "lcd", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_LCD, - }, { - .name = "rotator", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_ROTATOR, - }, { - .name = "fimc", - .id = 0, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_FIMC0, - }, { - .name = "fimc", - .id = 1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_FIMC1, - }, { - .name = "fimc", - .id = 2, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_FIMC2, - }, { - .name = "jpeg", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_JPEG, - }, { - .name = "g3d", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d11_ctrl, - .ctrlbit = S5PC100_CLKGATE_D11_G3D, - }, - - /* Multimedia2 (D1_2) devices */ - { - .name = "tv", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d12_ctrl, - .ctrlbit = S5PC100_CLKGATE_D12_TV, - }, { - .name = "vp", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d12_ctrl, - .ctrlbit = S5PC100_CLKGATE_D12_VP, - }, { - .name = "mixer", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d12_ctrl, - .ctrlbit = S5PC100_CLKGATE_D12_MIXER, - }, { - .name = "hdmi", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d12_ctrl, - .ctrlbit = S5PC100_CLKGATE_D12_HDMI, - }, { - .name = "mfc", - .id = -1, - .parent = &clk_h, - .enable = s5pc1xx_clk_d12_ctrl, - .ctrlbit = S5PC100_CLKGATE_D12_MFC, - }, - - /* System (D1_3) devices */ - { - .name = "chipid", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_CHIPID, - }, { - .name = "gpio", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_GPIO, - }, { - .name = "apc", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_APC, - }, { - .name = "iec", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_IEC, - }, { - .name = "timers", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_PWM, - }, { - .name = "systimer", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_SYSTIMER, - }, { - .name = "watchdog", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_WDT, - }, { - .name = "rtc", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d13_ctrl, - .ctrlbit = S5PC100_CLKGATE_D13_RTC, - }, - - /* Connectivity (D1_4) devices */ - { - .name = "uart", - .id = 0, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_UART0, - }, { - .name = "uart", - .id = 1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_UART1, - }, { - .name = "uart", - .id = 2, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_UART2, - }, { - .name = "uart", - .id = 3, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_UART3, - }, { - .name = "i2c", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_IIC, - }, { - .name = "hdmi-i2c", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_HDMI_IIC, - }, { - .name = "spi", - .id = 0, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_SPI0, - }, { - .name = "spi", - .id = 1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_SPI1, - }, { - .name = "spi", - .id = 2, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_SPI2, - }, { - .name = "irda", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_IRDA, - }, { - .name = "hsitx", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_HSITX, - }, { - .name = "hsirx", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d14_ctrl, - .ctrlbit = S5PC100_CLKGATE_D14_HSIRX, - }, - - /* Audio (D1_5) devices */ - { - .name = "iis", - .id = 0, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_IIS0, - }, { - .name = "iis", - .id = 1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_IIS1, - }, { - .name = "iis", - .id = 2, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_IIS2, - }, { - .name = "ac97", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_AC97, - }, { - .name = "pcm", - .id = 0, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_PCM0, - }, { - .name = "pcm", - .id = 1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_PCM1, - }, { - .name = "spdif", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_SPDIF, - }, { - .name = "adc", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_TSADC, - }, { - .name = "keyif", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_KEYIF, - }, { - .name = "cg", - .id = -1, - .parent = &clk_p, - .enable = s5pc1xx_clk_d15_ctrl, - .ctrlbit = S5PC100_CLKGATE_D15_CG, - }, - - /* Audio (D2_0) devices: all disabled */ - - /* Special Clocks 1 */ - { - .name = "sclk_hpm", - .id = -1, - .parent = NULL, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC1XX_CLKGATE_SCLK0_HPM, - }, { - .name = "sclk_onenand", - .id = -1, - .parent = NULL, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_ONENAND, - }, { - .name = "sclk_spi_48", - .id = 0, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI0_48, - }, { - .name = "sclk_spi_48", - .id = 1, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI1_48, - }, { - .name = "sclk_spi_48", - .id = 2, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI2_48, - }, { - .name = "sclk_mmc_48", - .id = 0, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC0_48, - }, { - .name = "sclk_mmc_48", - .id = 1, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC1_48, - }, { - .name = "sclk_mmc_48", - .id = 2, - .parent = &clk_48m, - .enable = s5pc1xx_sclk0_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC2_48, - }, - - /* Special Clocks 2 */ - { - .name = "sclk_tv_54", - .id = -1, - .parent = &clk_54m, - .enable = s5pc1xx_sclk1_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK1_TV54, - }, { - .name = "sclk_vdac_54", - .id = -1, - .parent = &clk_54m, - .enable = s5pc1xx_sclk1_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK1_VDAC54, - }, { - .name = "sclk_spdif", - .id = -1, - .parent = NULL, - .enable = s5pc1xx_sclk1_ctrl, - .ctrlbit = S5PC100_CLKGATE_SCLK1_SPDIF, - }, -}; - -void __init s5pc1xx_register_clocks(void) -{ - struct clk *clkp; - int ret; - int ptr; - - clkp = init_clocks; - for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) { - ret = s3c24xx_register_clock(clkp); - if (ret < 0) { - printk(KERN_ERR "Failed to register clock %s (%d)\n", - clkp->name, ret); - } - } - - 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(); -} -static struct clk clk_fout_apll = { - .name = "fout_apll", - .id = -1, -}; - -static struct clk *clk_src_apll_list[] = { - [0] = &clk_fin_apll, - [1] = &clk_fout_apll, -}; - -static struct clk_sources clk_src_apll = { - .sources = clk_src_apll_list, - .nr_sources = ARRAY_SIZE(clk_src_apll_list), -}; - -static struct clksrc_clk clk_mout_apll = { - .clk = { - .name = "mout_apll", - .id = -1, - }, - .shift = S5PC1XX_CLKSRC0_APLL_SHIFT, - .mask = S5PC1XX_CLKSRC0_APLL_MASK, - .sources = &clk_src_apll, - .reg_source = S5PC1XX_CLK_SRC0, -}; - -static struct clk clk_fout_epll = { - .name = "fout_epll", - .id = -1, -}; - -static struct clk *clk_src_epll_list[] = { - [0] = &clk_fin_epll, - [1] = &clk_fout_epll, -}; - -static struct clk_sources clk_src_epll = { - .sources = clk_src_epll_list, - .nr_sources = ARRAY_SIZE(clk_src_epll_list), -}; - -static struct clksrc_clk clk_mout_epll = { - .clk = { - .name = "mout_epll", - .id = -1, - }, - .shift = S5PC1XX_CLKSRC0_EPLL_SHIFT, - .mask = S5PC1XX_CLKSRC0_EPLL_MASK, - .sources = &clk_src_epll, - .reg_source = S5PC1XX_CLK_SRC0, -}; - -static struct clk *clk_src_mpll_list[] = { - [0] = &clk_fin_mpll, - [1] = &clk_fout_mpll, -}; - -static struct clk_sources clk_src_mpll = { - .sources = clk_src_mpll_list, - .nr_sources = ARRAY_SIZE(clk_src_mpll_list), -}; - -static struct clksrc_clk clk_mout_mpll = { - .clk = { - .name = "mout_mpll", - .id = -1, - }, - .shift = S5PC1XX_CLKSRC0_MPLL_SHIFT, - .mask = S5PC1XX_CLKSRC0_MPLL_MASK, - .sources = &clk_src_mpll, - .reg_source = S5PC1XX_CLK_SRC0, -}; - -static unsigned long s5pc1xx_clk_doutmpll_get_rate(struct clk *clk) -{ - unsigned long rate = clk_get_rate(clk->parent); - unsigned long clkdiv; - - printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate); - - clkdiv = __raw_readl(S5PC1XX_CLK_DIV1) & S5PC100_CLKDIV1_MPLL_MASK; - rate /= (clkdiv >> S5PC100_CLKDIV1_MPLL_SHIFT) + 1; - - return rate; -} - -static struct clk clk_dout_mpll = { - .name = "dout_mpll", - .id = -1, - .parent = &clk_mout_mpll.clk, - .get_rate = s5pc1xx_clk_doutmpll_get_rate, -}; - -static unsigned long s5pc1xx_clk_doutmpll2_get_rate(struct clk *clk) -{ - unsigned long rate = clk_get_rate(clk->parent); - unsigned long clkdiv; - - printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate); - - clkdiv = __raw_readl(S5PC1XX_CLK_DIV1) & S5PC100_CLKDIV1_MPLL2_MASK; - rate /= (clkdiv >> S5PC100_CLKDIV1_MPLL2_SHIFT) + 1; - - return rate; -} - -struct clk clk_dout_mpll2 = { - .name = "dout_mpll2", - .id = -1, - .parent = &clk_mout_mpll.clk, - .get_rate = s5pc1xx_clk_doutmpll2_get_rate, -}; - -static struct clk *clkset_uart_list[] = { - &clk_mout_epll.clk, - &clk_dout_mpll, - NULL, - NULL -}; - -static struct clk_sources clkset_uart = { - .sources = clkset_uart_list, - .nr_sources = ARRAY_SIZE(clkset_uart_list), -}; - -static inline struct clksrc_clk *to_clksrc(struct clk *clk) -{ - return container_of(clk, struct clksrc_clk, clk); -} - -static unsigned long s5pc1xx_getrate_clksrc(struct clk *clk) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - unsigned long rate = clk_get_rate(clk->parent); - u32 clkdiv = __raw_readl(sclk->reg_divider); - - clkdiv >>= sclk->divider_shift; - clkdiv &= 0xf; - clkdiv++; - - rate /= clkdiv; - return rate; -} - -static int s5pc1xx_setrate_clksrc(struct clk *clk, unsigned long rate) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - void __iomem *reg = sclk->reg_divider; - unsigned int div; - u32 val; - - rate = clk_round_rate(clk, rate); - div = clk_get_rate(clk->parent) / rate; - if (div > 16) - return -EINVAL; - - val = __raw_readl(reg); - val &= ~(0xf << sclk->shift); - val |= (div - 1) << sclk->shift; - __raw_writel(val, reg); - - return 0; -} - -static int s5pc1xx_setparent_clksrc(struct clk *clk, struct clk *parent) -{ - struct clksrc_clk *sclk = to_clksrc(clk); - struct clk_sources *srcs = sclk->sources; - u32 clksrc = __raw_readl(sclk->reg_source); - int src_nr = -1; - int ptr; - - for (ptr = 0; ptr < srcs->nr_sources; ptr++) - if (srcs->sources[ptr] == parent) { - src_nr = ptr; - break; - } - - if (src_nr >= 0) { - clksrc &= ~sclk->mask; - clksrc |= src_nr << sclk->shift; - - __raw_writel(clksrc, sclk->reg_source); - return 0; - } - - return -EINVAL; -} - -static unsigned long s5pc1xx_roundrate_clksrc(struct clk *clk, - unsigned long rate) -{ - unsigned long parent_rate = clk_get_rate(clk->parent); - int div; - - if (rate > parent_rate) - rate = parent_rate; - else { - div = rate / parent_rate; - - if (div == 0) - div = 1; - if (div > 16) - div = 16; - - rate = parent_rate / div; - } - - return rate; -} - -static struct clksrc_clk clk_uart_uclk1 = { - .clk = { - .name = "uclk1", - .id = -1, - .ctrlbit = S5PC100_CLKGATE_SCLK0_UART, - .enable = s5pc1xx_sclk0_ctrl, - .set_parent = s5pc1xx_setparent_clksrc, - .get_rate = s5pc1xx_getrate_clksrc, - .set_rate = s5pc1xx_setrate_clksrc, - .round_rate = s5pc1xx_roundrate_clksrc, - }, - .shift = S5PC100_CLKSRC1_UART_SHIFT, - .mask = S5PC100_CLKSRC1_UART_MASK, - .sources = &clkset_uart, - .divider_shift = S5PC100_CLKDIV2_UART_SHIFT, - .reg_divider = S5PC1XX_CLK_DIV2, - .reg_source = S5PC1XX_CLK_SRC1, -}; - -/* Clock initialisation code */ - -static struct clksrc_clk *init_parents[] = { - &clk_mout_apll, - &clk_mout_epll, - &clk_mout_mpll, - &clk_uart_uclk1, -}; - -static void __init_or_cpufreq s5pc1xx_set_clksrc(struct clksrc_clk *clk) -{ - struct clk_sources *srcs = clk->sources; - u32 clksrc = __raw_readl(clk->reg_source); - - clksrc &= clk->mask; - clksrc >>= clk->shift; - - if (clksrc > srcs->nr_sources || !srcs->sources[clksrc]) { - printk(KERN_ERR "%s: bad source %d\n", - clk->clk.name, clksrc); - return; - } - - clk->clk.parent = srcs->sources[clksrc]; - - printk(KERN_INFO "%s: source is %s (%d), rate is %ld\n", - clk->clk.name, clk->clk.parent->name, clksrc, - clk_get_rate(&clk->clk)); -} - -#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1) - -void __init_or_cpufreq s5pc100_setup_clocks(void) -{ - struct clk *xtal_clk; - unsigned long xtal; - unsigned long armclk; - unsigned long hclkd0; - unsigned long hclk; - unsigned long pclkd0; - unsigned long pclk; - unsigned long apll; - unsigned long mpll; - unsigned long hpll; - unsigned long epll; - unsigned int ptr; - u32 clkdiv0, clkdiv1; - - printk(KERN_DEBUG "%s: registering clocks\n", __func__); - - clkdiv0 = __raw_readl(S5PC1XX_CLK_DIV0); - clkdiv1 = __raw_readl(S5PC1XX_CLK_DIV1); - - printk(KERN_DEBUG "%s: clkdiv0 = %08x, clkdiv1 = %08x\n", - __func__, clkdiv0, clkdiv1); - - xtal_clk = clk_get(NULL, "xtal"); - BUG_ON(IS_ERR(xtal_clk)); - - xtal = clk_get_rate(xtal_clk); - clk_put(xtal_clk); - - printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal); - - apll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC1XX_APLL_CON)); - mpll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC1XX_MPLL_CON)); - epll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC1XX_EPLL_CON)); - hpll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC100_HPLL_CON)); - - printk(KERN_INFO "S5PC100: PLL settings, A=%ld, M=%ld, E=%ld, H=%ld\n", - apll, mpll, epll, hpll); - - armclk = apll / GET_DIV(clkdiv0, S5PC1XX_CLKDIV0_APLL); - armclk = armclk / GET_DIV(clkdiv0, S5PC100_CLKDIV0_ARM); - hclkd0 = armclk / GET_DIV(clkdiv0, S5PC100_CLKDIV0_D0); - pclkd0 = hclkd0 / GET_DIV(clkdiv0, S5PC100_CLKDIV0_PCLKD0); - hclk = mpll / GET_DIV(clkdiv1, S5PC100_CLKDIV1_D1); - pclk = hclk / GET_DIV(clkdiv1, S5PC100_CLKDIV1_PCLKD1); - - printk(KERN_INFO "S5PC100: ARMCLK=%ld, HCLKD0=%ld, PCLKD0=%ld, HCLK=%ld, PCLK=%ld\n", - armclk, hclkd0, pclkd0, hclk, pclk); - - clk_fout_apll.rate = apll; - clk_fout_mpll.rate = mpll; - clk_fout_epll.rate = epll; - clk_fout_apll.rate = apll; - - clk_h.rate = hclk; - clk_p.rate = pclk; - - for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++) - s5pc1xx_set_clksrc(init_parents[ptr]); -} - -static struct clk *clks[] __initdata = { - &clk_ext_xtal_mux, - &clk_mout_epll.clk, - &clk_fout_epll, - &clk_mout_mpll.clk, - &clk_dout_mpll, - &clk_uart_uclk1.clk, - &clk_ext, - &clk_epll, - &clk_27m, - &clk_48m, - &clk_54m, -}; - -void __init s5pc100_register_clocks(void) -{ - struct clk *clkp; - int ret; - int ptr; - - for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) { - clkp = clks[ptr]; - ret = s3c24xx_register_clock(clkp); - if (ret < 0) { - printk(KERN_ERR "Failed to register clock %s (%d)\n", - clkp->name, ret); - } - } - - clk_mpll.parent = &clk_mout_mpll.clk; - clk_epll.parent = &clk_mout_epll.clk; -} |