diff options
| -rw-r--r-- | arch/arm/plat-s5pc1xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/clock.c | 728 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/cpu.c | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/include/plat/s5pc100.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/s5pc100-clock.c | 1531 |
5 files changed, 1504 insertions, 766 deletions
diff --git a/arch/arm/plat-s5pc1xx/Makefile b/arch/arm/plat-s5pc1xx/Makefile index f1ecb2c37ee..ebbf36490f4 100644 --- a/arch/arm/plat-s5pc1xx/Makefile +++ b/arch/arm/plat-s5pc1xx/Makefile @@ -14,6 +14,7 @@ obj- := obj-y += dev-uart.o obj-y += cpu.o obj-y += irq.o +obj-y += clock.o # CPU support diff --git a/arch/arm/plat-s5pc1xx/clock.c b/arch/arm/plat-s5pc1xx/clock.c new file mode 100644 index 00000000000..26c21d84979 --- /dev/null +++ b/arch/arm/plat-s5pc1xx/clock.c @@ -0,0 +1,728 @@ +/* linux/arch/arm/plat-s5pc1xx/clock.c + * + * Copyright 2009 Samsung Electronics Co. + * + * S5PC1XX Base clock support + * + * Based on plat-s3c64xx/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/interrupt.h> +#include <linux/ioport.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <mach/map.h> + +#include <plat/regs-clock.h> +#include <plat/devs.h> +#include <plat/clock.h> + +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(S5PC100_CLKSRC1); + if (enable) + val |= S5PC100_CLKSRC1_CLK48M_MASK; + else + val &= ~S5PC100_CLKSRC1_CLK48M_MASK; + + __raw_writel(val, S5PC100_CLKSRC1); + 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, +}; + +static int clk_default_setrate(struct clk *clk, unsigned long rate) +{ + clk->rate = rate; + return 0; +} + +static int clk_dummy_enable(struct clk *clk, int enable) +{ + return 0; +} + +struct clk clk_hd0 = { + .name = "hclkd0", + .id = -1, + .rate = 0, + .parent = NULL, + .ctrlbit = 0, + .set_rate = clk_default_setrate, + .enable = clk_dummy_enable, +}; + +struct clk clk_pd0 = { + .name = "pclkd0", + .id = -1, + .rate = 0, + .parent = NULL, + .ctrlbit = 0, + .set_rate = clk_default_setrate, + .enable = clk_dummy_enable, +}; + +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 s5pc100_clk_d00_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D00, clk, enable); +} + +static int s5pc100_clk_d01_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D01, clk, enable); +} + +static int s5pc100_clk_d02_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D02, clk, enable); +} + +static int s5pc100_clk_d10_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D10, clk, enable); +} + +static int s5pc100_clk_d11_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D11, clk, enable); +} + +static int s5pc100_clk_d12_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D12, clk, enable); +} + +static int s5pc100_clk_d13_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D13, clk, enable); +} + +static int s5pc100_clk_d14_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D14, clk, enable); +} + +static int s5pc100_clk_d15_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D15, clk, enable); +} + +static int s5pc100_clk_d20_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_CLKGATE_D20, clk, enable); +} + +int s5pc100_sclk0_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_SCLKGATE0, clk, enable); +} + +int s5pc100_sclk1_ctrl(struct clk *clk, int enable) +{ + return s5pc1xx_clk_gate(S5PC100_SCLKGATE1, clk, enable); +} + +static struct clk s5pc100_init_clocks_disable[] = { + { + .name = "dsi", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_DSI, + }, { + .name = "csi", + .id = -1, + .parent = &clk_h, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_CSI, + }, { + .name = "ccan", + .id = 0, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_CCAN0, + }, { + .name = "ccan", + .id = 1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_CCAN1, + }, { + .name = "keypad", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_KEYIF, + }, { + .name = "hclkd2", + .id = -1, + .parent = NULL, + .enable = s5pc100_clk_d20_ctrl, + .ctrlbit = S5PC100_CLKGATE_D20_HCLKD2, + }, { + .name = "iis-d2", + .id = -1, + .parent = NULL, + .enable = s5pc100_clk_d20_ctrl, + .ctrlbit = S5PC100_CLKGATE_D20_I2SD2, + }, +}; + +static struct clk s5pc100_init_clocks[] = { + /* System1 (D0_0) devices */ + { + .name = "intc", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_INTC, + }, { + .name = "tzic", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_TZIC, + }, { + .name = "cf-ata", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_CFCON, + }, { + .name = "mdma", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_MDMA, + }, { + .name = "g2d", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_G2D, + }, { + .name = "secss", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_SECSS, + }, { + .name = "cssys", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d00_ctrl, + .ctrlbit = S5PC100_CLKGATE_D00_CSSYS, + }, + + /* Memory (D0_1) devices */ + { + .name = "dmc", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_DMC, + }, { + .name = "sromc", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_SROMC, + }, { + .name = "onenand", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_ONENAND, + }, { + .name = "nand", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_NFCON, + }, { + .name = "intmem", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_INTMEM, + }, { + .name = "ebi", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d01_ctrl, + .ctrlbit = S5PC100_CLKGATE_D01_EBI, + }, + + /* System2 (D0_2) devices */ + { + .name = "seckey", + .id = -1, + .parent = &clk_pd0, + .enable = s5pc100_clk_d02_ctrl, + .ctrlbit = S5PC100_CLKGATE_D02_SECKEY, + }, { + .name = "sdm", + .id = -1, + .parent = &clk_hd0, + .enable = s5pc100_clk_d02_ctrl, + .ctrlbit = S5PC100_CLKGATE_D02_SDM, + }, + + /* File (D1_0) devices */ + { + .name = "pdma", + .id = 0, + .parent = &clk_h, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_PDMA0, + }, { + .name = "pdma", + .id = 1, + .parent = &clk_h, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_PDMA1, + }, { + .name = "usb-host", + .id = -1, + .parent = &clk_h, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_USBHOST, + }, { + .name = "otg", + .id = -1, + .parent = &clk_h, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_USBOTG, + }, { + .name = "modem", + .id = -1, + .parent = &clk_h, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_MODEMIF, + }, { + .name = "hsmmc", + .id = 0, + .parent = &clk_48m, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_HSMMC0, + }, { + .name = "hsmmc", + .id = 1, + .parent = &clk_48m, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_HSMMC1, + }, { + .name = "hsmmc", + .id = 2, + .parent = &clk_48m, + .enable = s5pc100_clk_d10_ctrl, + .ctrlbit = S5PC100_CLKGATE_D10_HSMMC2, + }, + + /* Multimedia1 (D1_1) devices */ + { + .name = "lcd", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_LCD, + }, { + .name = "rotator", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_ROTATOR, + }, { + .name = "fimc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_FIMC0, + }, { + .name = "fimc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_FIMC1, + }, { + .name = "fimc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_FIMC2, + }, { + .name = "jpeg", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_JPEG, + }, { + .name = "g3d", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d11_ctrl, + .ctrlbit = S5PC100_CLKGATE_D11_G3D, + }, + + /* Multimedia2 (D1_2) devices */ + { + .name = "tv", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d12_ctrl, + .ctrlbit = S5PC100_CLKGATE_D12_TV, + }, { + .name = "vp", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d12_ctrl, + .ctrlbit = S5PC100_CLKGATE_D12_VP, + }, { + .name = "mixer", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d12_ctrl, + .ctrlbit = S5PC100_CLKGATE_D12_MIXER, + }, { + .name = "hdmi", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d12_ctrl, + .ctrlbit = S5PC100_CLKGATE_D12_HDMI, + }, { + .name = "mfc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d12_ctrl, + .ctrlbit = S5PC100_CLKGATE_D12_MFC, + }, + + /* System (D1_3) devices */ + { + .name = "chipid", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_CHIPID, + }, { + .name = "gpio", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_GPIO, + }, { + .name = "apc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_APC, + }, { + .name = "iec", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_IEC, + }, { + .name = "timers", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_PWM, + }, { + .name = "systimer", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_SYSTIMER, + }, { + .name = "watchdog", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_WDT, + }, { + .name = "rtc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d13_ctrl, + .ctrlbit = S5PC100_CLKGATE_D13_RTC, + }, + + /* Connectivity (D1_4) devices */ + { + .name = "uart", + .id = 0, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_UART0, + }, { + .name = "uart", + .id = 1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_UART1, + }, { + .name = "uart", + .id = 2, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_UART2, + }, { + .name = "uart", + .id = 3, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_UART3, + }, { + .name = "i2c", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_IIC, + }, { + .name = "hdmi-i2c", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_HDMI_IIC, + }, { + .name = "spi", + .id = 0, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_SPI0, + }, { + .name = "spi", + .id = 1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_SPI1, + }, { + .name = "spi", + .id = 2, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_SPI2, + }, { + .name = "irda", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_IRDA, + }, { + .name = "hsitx", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_HSITX, + }, { + .name = "hsirx", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d14_ctrl, + .ctrlbit = S5PC100_CLKGATE_D14_HSIRX, + }, + + /* Audio (D1_5) devices */ + { + .name = "iis", + .id = 0, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_IIS0, + }, { + .name = "iis", + .id = 1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_IIS1, + }, { + .name = "iis", + .id = 2, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_IIS2, + }, { + .name = "ac97", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_AC97, + }, { + .name = "pcm", + .id = 0, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_PCM0, + }, { + .name = "pcm", + .id = 1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_PCM1, + }, { + .name = "spdif", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_SPDIF, + }, { + .name = "adc", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_TSADC, + }, { + .name = "cg", + .id = -1, + .parent = &clk_p, + .enable = s5pc100_clk_d15_ctrl, + .ctrlbit = S5PC100_CLKGATE_D15_CG, + }, + + /* Audio (D2_0) devices: all disabled */ + + /* Special Clocks 0 */ + { + .name = "sclk_hpm", + .id = -1, + .parent = NULL, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_HPM, + }, { + .name = "sclk_onenand", + .id = -1, + .parent = NULL, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_ONENAND, + }, { + .name = "spi_48", + .id = 0, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI0_48, + }, { + .name = "spi_48", + .id = 1, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI1_48, + }, { + .name = "spi_48", + .id = 2, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI2_48, + }, { + .name = "mmc_48", + .id = 0, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC0_48, + }, { + .name = "mmc_48", + .id = 1, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC1_48, + }, { + .name = "mmc_48", + .id = 2, + .parent = &clk_48m, + .enable = s5pc100_sclk0_ctrl, + .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC2_48, + }, + /* Special Clocks 1 */ +}; + +static struct clk *clks[] __initdata = { + &clk_ext, + &clk_epll, + &clk_27m, + &clk_48m, + &clk_54m, +}; + +void __init s5pc1xx_register_clocks(void) +{ + struct clk *clkp; + int ret; + int ptr; + int size; + + s3c24xx_register_clocks(clks, ARRAY_SIZE(clks)); + + clkp = s5pc100_init_clocks; + size = ARRAY_SIZE(s5pc100_init_clocks); + + for (ptr = 0; ptr < size; ptr++, clkp++) { + ret = s3c24xx_register_clock(clkp); + if (ret < 0) { + printk(KERN_ERR "Failed to register clock %s (%d)\n", + clkp->name, ret); + } + } + + clkp = s5pc100_init_clocks_disable; + size = ARRAY_SIZE(s5pc100_init_clocks_disable); + + for (ptr = 0; ptr < size; 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/plat-s5pc1xx/cpu.c b/arch/arm/plat-s5pc1xx/cpu.c index 715a7330794..e8f347218ec 100644 --- a/arch/arm/plat-s5pc1xx/cpu.c +++ b/arch/arm/plat-s5pc1xx/cpu.c @@ -55,6 +55,11 @@ static struct cpu_table cpu_ids[] __initdata = { static struct map_desc s5pc1xx_iodesc[] __initdata = { { + .virtual = (unsigned long)S5PC1XX_VA_CLK_OTHER, + .pfn = __phys_to_pfn(S5PC1XX_PA_CLK_OTHER), + .length = SZ_4K, + .type = MT_DEVICE, + }, { .virtual = (unsigned long)S5PC1XX_VA_CHIPID, .pfn = __phys_to_pfn(S5PC1XX_PA_CHIPID), .length = SZ_16, diff --git a/arch/arm/plat-s5pc1xx/include/plat/s5pc100.h b/arch/arm/plat-s5pc1xx/include/plat/s5pc100.h index 45e27513166..2531f34a56f 100644 --- a/arch/arm/plat-s5pc1xx/include/plat/s5pc100.h +++ b/arch/arm/plat-s5pc1xx/include/plat/s5pc100.h @@ -35,10 +35,9 @@ extern struct clk clk_hpll; extern struct clk clk_hd0; extern struct clk clk_pd0; extern struct clk clk_54m; -extern struct clk clk_dout_mpll2; extern void s5pc1xx_register_clocks(void); -extern int s5pc1xx_sclk0_ctrl(struct clk *clk, int enable); -extern int s5pc1xx_sclk1_ctrl(struct clk *clk, int enable); +extern int s5pc100_sclk0_ctrl(struct clk *clk, int enable); +extern int s5pc100_sclk1_ctrl(struct clk *clk, int enable); /* Some day, belows will be moved to plat-s5pc/include/plat/devs.h */ extern struct s3c24xx_uart_resources s5pc1xx_uart_resources[]; diff --git a/arch/arm/plat-s5pc1xx/s5pc100-clock.c b/arch/arm/plat-s5pc1xx/s5pc100-clock.c index efc868b4c2a..b436d44510c 100644 --- a/arch/arm/plat-s5pc1xx/s5pc100-clock.c +++ b/arch/arm/plat-s5pc1xx/s5pc100-clock.c @@ -49,6 +49,7 @@ static struct clk clk_ext_xtal_mux = { #define clk_fin_hpll clk_ext_xtal_mux #define clk_fout_mpll clk_mpll +#define clk_vclk_54m clk_54m struct clk_sources { unsigned int nr_sources; @@ -67,746 +68,327 @@ struct clksrc_clk { 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", +/* APLL */ +static struct clk clk_fout_apll = { + .name = "fout_apll", .id = -1, .rate = 27000000, }; -static int clk_48m_ctrl(struct clk *clk, int enable) -{ - unsigned long flags; - u32 val; +static struct clk *clk_src_apll_list[] = { + [0] = &clk_fin_apll, + [1] = &clk_fout_apll, +}; - /* can't rely on clock lock, this register has other usages */ - local_irq_save(flags); +static struct clk_sources clk_src_apll = { + .sources = clk_src_apll_list, + .nr_sources = ARRAY_SIZE(clk_src_apll_list), +}; - val = __raw_readl(S5PC100_CLKSRC1); - if (enable) - val |= S5PC100_CLKSRC1_CLK48M_MASK; - else - val &= ~S5PC100_CLKSRC1_CLK48M_MASK; +static struct clksrc_clk clk_mout_apll = { + .clk = { + .name = "mout_apll", + .id = -1, + }, + .shift = S5PC100_CLKSRC0_APLL_SHIFT, + .mask = S5PC100_CLKSRC0_APLL_MASK, + .sources = &clk_src_apll, + .reg_source = S5PC100_CLKSRC0, +}; - __raw_writel(val, S5PC100_CLKSRC1); - local_irq_restore(flags); +static unsigned long s5pc100_clk_dout_apll_get_rate(struct clk *clk) +{ + unsigned long rate = clk_get_rate(clk->parent); + unsigned int ratio; - return 0; -} + ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_APLL_MASK; + ratio >>= S5PC100_CLKDIV0_APLL_SHIFT; -struct clk clk_48m = { - .name = "clk_48m", - .id = -1, - .rate = 48000000, - .enable = clk_48m_ctrl, -}; + return rate / (ratio + 1); +} -struct clk clk_54m = { - .name = "clk_54m", +static struct clk clk_dout_apll = { + .name = "dout_apll", .id = -1, - .rate = 54000000, + .parent = &clk_mout_apll.clk, + .get_rate = s5pc100_clk_dout_apll_get_rate, }; -struct clk clk_hpll = { - .name = "hpll", - .id = -1, -}; +static unsigned long s5pc100_clk_arm_get_rate(struct clk *clk) +{ + unsigned long rate = clk_get_rate(clk->parent); + unsigned int ratio; -struct clk clk_hd0 = { - .name = "hclkd0", - .id = -1, - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .set_rate = clk_default_setrate, -}; + ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_ARM_MASK; + ratio >>= S5PC100_CLKDIV0_ARM_SHIFT; -struct clk clk_pd0 = { - .name = "pclkd0", - .id = -1, - .rate = 0, - .parent = NULL, - .ctrlbit = 0, - .set_rate = clk_default_setrate, -}; + return rate / (ratio + 1); +} -static int s5pc1xx_clk_gate(void __iomem *reg, - struct clk *clk, - int enable) +static unsigned long s5pc100_clk_arm_round_rate(struct clk *clk, + unsigned long rate) { - unsigned int ctrlbit = clk->ctrlbit; - u32 con; + unsigned long parent = clk_get_rate(clk->parent); + u32 div; - con = __raw_readl(reg); + if (parent < rate) + return rate; - if (enable) - con |= ctrlbit; - else - con &= ~ctrlbit; + div = (parent / rate) - 1; + if (div > S5PC100_CLKDIV0_ARM_MASK) + div = S5PC100_CLKDIV0_ARM_MASK; - __raw_writel(con, reg); - return 0; + return parent / (div + 1); } -static int s5pc1xx_clk_d00_ctrl(struct clk *clk, int enable) +static int s5pc100_clk_arm_set_rate(struct clk *clk, unsigned long rate) { - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D00, clk, enable); -} + unsigned long parent = clk_get_rate(clk->parent); + u32 div; + u32 val; -static int s5pc1xx_clk_d01_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D01, clk, enable); -} + if (rate < parent / (S5PC100_CLKDIV0_ARM_MASK + 1)) + return -EINVAL; -static int s5pc1xx_clk_d02_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D02, clk, enable); -} + rate = clk_round_rate(clk, rate); + div = clk_get_rate(clk->parent) / rate; -static int s5pc1xx_clk_d10_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D10, clk, enable); -} + val = __raw_readl(S5PC100_CLKDIV0); + val &= S5PC100_CLKDIV0_ARM_MASK; + val |= (div - 1); + __raw_writel(val, S5PC100_CLKDIV0); -static int s5pc1xx_clk_d11_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D11, clk, enable); + return 0; } -static int s5pc1xx_clk_d12_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D12, clk, enable); -} +static struct clk clk_arm = { + .name = "armclk", + .id = -1, + .parent = &clk_dout_apll, + .get_rate = s5pc100_clk_arm_get_rate, + .set_rate = s5pc100_clk_arm_set_rate, + .round_rate = s5pc100_clk_arm_round_rate, +}; -static int s5pc1xx_clk_d13_ctrl(struct clk *clk, int enable) +static unsigned long s5pc100_clk_dout_d0_bus_get_rate(struct clk *clk) { - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D13, clk, enable); -} + unsigned long rate = clk_get_rate(clk->parent); + unsigned int ratio; -static int s5pc1xx_clk_d14_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D14, clk, enable); -} + ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_D0_MASK; + ratio >>= S5PC100_CLKDIV0_D0_SHIFT; -static int s5pc1xx_clk_d15_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D15, clk, enable); + return rate / (ratio + 1); } -static int s5pc1xx_clk_d20_ctrl(struct clk *clk, int enable) -{ - return s5pc1xx_clk_gate(S5PC100_CLKGATE_D20, clk, enable); -} +static struct clk clk_dout_d0_bus = { + .name = "dout_d0_bus", + .id = -1, + .parent = &clk_arm, + .get_rate = s5pc100_clk_dout_d0_bus_get_rate, +}; -int s5pc1xx_sclk0_ctrl(struct clk *clk, int enable) +static unsigned long s5pc100_clk_dout_pclkd0_get_rate(struct clk *clk) { - return s5pc1xx_clk_gate(S5PC100_SCLKGATE0, clk, enable); + unsigned long rate = clk_get_rate(clk->parent); + unsigned int ratio; + + ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_PCLKD0_MASK; + ratio >>= S5PC100_CLKDIV0_PCLKD0_SHIFT; + + return rate / (ratio + 1); } -int s5pc1xx_sclk1_ctrl(struct clk *clk, int enable) +static struct clk clk_dout_pclkd0 = { + .name = "dout_pclkd0", + .id = -1, + .parent = &clk_dout_d0_bus, + .get_rate = s5pc100_clk_dout_pclkd0_get_rate, +}; + +static unsigned long s5pc100_clk_dout_apll2_get_rate(struct clk *clk) { - return s5pc1xx_clk_gate(S5PC100_SCLKGATE1, clk, enable); + unsigned long rate = clk_get_rate(clk->parent); + unsigned int ratio; + + ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_APLL2_MASK; + ratio >>= S5PC100_CLKDIV1_APLL2_SHIFT; + + return rate / (ratio + 1); } -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 clk_dout_apll2 = { + .name = "dout_apll2", + .id = -1, + .parent = &clk_mout_apll.clk, + .get_rate = s5pc100_clk_dout_apll2_get_rate, }; -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, - }, +/* MPLL */ +static struct clk *clk_src_mpll_list[] = { + [0] = &clk_fin_mpll, + [1] = &clk_fout_mpll, +}; - /* 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, - }, +static struct clk_sources clk_src_mpll = { + .sources = clk_src_mpll_list, + .nr_sources = ARRAY_SIZE(clk_src_mpll_list), +}; - /* System2 (D0_2) devices */ - { - .name = "seckey", - .id = -1, - .parent = &clk_pd0, - .enable = s5pc1xx_clk_d02_ctrl, - .ctrlbit = S5PC100_CLKGATE_D02_SECKEY, - }, { - .name = "sdm", +static struct clksrc_clk clk_mout_mpll = { + .clk = { + .name = "mout_mpll", .id = -1, - .parent = &clk_hd0, - .enable = s5pc1xx_clk_d02_ctrl, - .ctrlbit = S5PC100_CLKGATE_D02_SDM, }, + .shift = S5PC100_CLKSRC0_MPLL_SHIFT, + .mask = S5PC100_CLKSRC0_MPLL_MASK, + .sources = &clk_src_mpll, + .reg_source = S5PC100_CLKSRC0, +}; - /* 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,< |