Skip to content

L
linux
Commit 66fcbe6b authored by Tomasz Figa's avatar Tomasz Figa Committed by Kukjin Kim
Browse files
Options

ARM: S3C64XX: Remove old clock management code 

This patch removes old clock management code of S3C64xx, since the
platform has been already moved to the new clock driver using Common
Clock Framework.
Signed-off-by: default avatarTomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent b69f460d
Hide whitespace changes
Inline Side-by-side
Showing with 4 additions and 1158 deletions
arch/arm/mach-s3c64xx/clock.c deleted 100644 → 0
View file @ b69f460d
/* linux/arch/arm/plat-s3c64xx/clock.c
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* S3C64XX Base clock support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <mach/map.h>
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/cpu-freq.h>
#include <plat/clock.h>
#include <plat/clock-clksrc.h>
#include <plat/pll.h>
#include "regs-sys.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",
};
#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_fout_mpll clk_mpll
#define clk_fout_epll clk_epll
struct clk clk_h2 = {
.name = "hclk2",
.rate = 0,
};
struct clk clk_27m = {
.name = "clk_27m",
.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(S3C64XX_OTHERS);
if (enable)
val |= S3C64XX_OTHERS_USBMASK;
else
val &= ~S3C64XX_OTHERS_USBMASK;
__raw_writel(val, S3C64XX_OTHERS);
local_irq_restore(flags);
return 0;
}
struct clk clk_48m = {
.name = "clk_48m",
.rate = 48000000,
.enable = clk_48m_ctrl,
};
struct clk clk_xusbxti = {
.name = "xusbxti",
.rate = 48000000,
};
static int inline s3c64xx_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 s3c64xx_pclk_ctrl(struct clk *clk, int enable)
{
return s3c64xx_gate(S3C_PCLK_GATE, clk, enable);
}
static int s3c64xx_hclk_ctrl(struct clk *clk, int enable)
{
return s3c64xx_gate(S3C_HCLK_GATE, clk, enable);
}
int s3c64xx_sclk_ctrl(struct clk *clk, int enable)
{
return s3c64xx_gate(S3C_SCLK_GATE, clk, enable);
}
static struct clk init_clocks_off[] = {
{
.name = "nand",
.parent = &clk_h,
}, {
.name = "rtc",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_RTC,
}, {
.name = "adc",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_TSADC,
}, {
.name = "i2c",
.devname = "s3c2440-i2c.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIC,
}, {
.name = "i2c",
.devname = "s3c2440-i2c.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C6410_CLKCON_PCLK_I2C1,
}, {
.name = "keypad",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_KEYPAD,
}, {
.name = "spi",
.devname = "s3c6410-spi.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_SPI0,
}, {
.name = "spi",
.devname = "s3c6410-spi.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_SPI1,
}, {
.name = "48m",
.devname = "s3c-sdhci.0",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC0_48,
}, {
.name = "48m",
.devname = "s3c-sdhci.1",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC1_48,
}, {
.name = "48m",
.devname = "s3c-sdhci.2",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC2_48,
}, {
.name = "ac97",
.parent = &clk_p,
.ctrlbit = S3C_CLKCON_PCLK_AC97,
}, {
.name = "cfcon",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_IHOST,
}, {
.name = "dma0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_DMA0,
}, {
.name = "dma1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_DMA1,
}, {
.name = "3dse",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_3DSE,
}, {
.name = "hclk_secur",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_SECUR,
}, {
.name = "sdma1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_SDMA1,
}, {
.name = "sdma0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_SDMA0,
}, {
.name = "hclk_jpeg",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_JPEG,
}, {
.name = "camif",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_CAMIF,
}, {
.name = "hclk_scaler",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_SCALER,
}, {
.name = "2d",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_2D,
}, {
.name = "tv",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_TV,
}, {
.name = "post0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_POST0,
}, {
.name = "rot",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_ROT,
}, {
.name = "hclk_mfc",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_MFC,
}, {
.name = "pclk_mfc",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_MFC,
}, {
.name = "dac27",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_DAC27,
}, {
.name = "tv27",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_TV27,
}, {
.name = "scaler27",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SCALER27,
}, {
.name = "sclk_scaler",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SCALER,
}, {
.name = "post0_27",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_POST0_27,
}, {
.name = "secur",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SECUR,
}, {
.name = "sclk_mfc",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MFC,
}, {
.name = "sclk_jpeg",
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_JPEG,
},
};
static struct clk clk_48m_spi0 = {
.name = "spi_48m",
.devname = "s3c6410-spi.0",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
};
static struct clk clk_48m_spi1 = {
.name = "spi_48m",
.devname = "s3c6410-spi.1",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
};
static struct clk clk_i2s0 = {
.name = "iis",
.devname = "samsung-i2s.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIS0,
};
static struct clk clk_i2s1 = {
.name = "iis",
.devname = "samsung-i2s.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIS1,
};
#ifdef CONFIG_CPU_S3C6410
static struct clk clk_i2s2 = {
.name = "iis",
.devname = "samsung-i2s.2",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C6410_CLKCON_PCLK_IIS2,
};
#endif
static struct clk init_clocks[] = {
{
.name = "lcd",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_LCD,
}, {
.name = "gpio",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_GPIO,
}, {
.name = "usb-host",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_UHOST,
}, {
.name = "otg",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_USB,
}, {
.name = "timers",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_PWM,
}, {
.name = "uart",
.devname = "s3c6400-uart.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART0,
}, {
.name = "uart",
.devname = "s3c6400-uart.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART1,
}, {
.name = "uart",
.devname = "s3c6400-uart.2",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART2,
}, {
.name = "uart",
.devname = "s3c6400-uart.3",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART3,
}, {
.name = "watchdog",
.parent = &clk_p,
.ctrlbit = S3C_CLKCON_PCLK_WDT,
},
};
static struct clk clk_hsmmc0 = {
.name = "hsmmc",
.devname = "s3c-sdhci.0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
};
static struct clk clk_hsmmc1 = {
.name = "hsmmc",
.devname = "s3c-sdhci.1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
};
static struct clk clk_hsmmc2 = {
.name = "hsmmc",
.devname = "s3c-sdhci.2",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
};
static struct clk clk_fout_apll = {
.name = "fout_apll",
};
static struct clk *clk_src_apll_list[] = {
[0] = &clk_fin_apll,
[1] = &clk_fout_apll,
};
static struct clksrc_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",
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 0, .size = 1 },
.sources = &clk_src_apll,
};
static struct clk *clk_src_epll_list[] = {
[0] = &clk_fin_epll,
[1] = &clk_fout_epll,
};
static struct clksrc_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",
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 2, .size = 1 },
.sources = &clk_src_epll,
};
static struct clk *clk_src_mpll_list[] = {
[0] = &clk_fin_mpll,
[1] = &clk_fout_mpll,
};
static struct clksrc_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",
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 1, .size = 1 },
.sources = &clk_src_mpll,
};
static unsigned int armclk_mask;
static unsigned long s3c64xx_clk_arm_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(S3C_CLK_DIV0) & armclk_mask;
return rate / (clkdiv + 1);
}
static unsigned long s3c64xx_clk_arm_round_rate(struct clk *clk,
unsigned long rate)
{
unsigned long parent = clk_get_rate(clk->parent);
u32 div;
if (parent < rate)
return parent;
div = (parent / rate) - 1;
if (div > armclk_mask)
div = armclk_mask;
return parent / (div + 1);
}
static int s3c64xx_clk_arm_set_rate(struct clk *clk, unsigned long rate)
{
unsigned long parent = clk_get_rate(clk->parent);
u32 div;
u32 val;
if (rate < parent / (armclk_mask + 1))
return -EINVAL;
rate = clk_round_rate(clk, rate);
div = clk_get_rate(clk->parent) / rate;
val = __raw_readl(S3C_CLK_DIV0);
val &= ~armclk_mask;
val |= (div - 1);
__raw_writel(val, S3C_CLK_DIV0);
return 0;
}
static struct clk clk_arm = {
.name = "armclk",
.parent = &clk_mout_apll.clk,
.ops = &(struct clk_ops) {
.get_rate = s3c64xx_clk_arm_get_rate,
.set_rate = s3c64xx_clk_arm_set_rate,
.round_rate = s3c64xx_clk_arm_round_rate,
},
};
static unsigned long s3c64xx_clk_doutmpll_get_rate(struct clk *clk)
{
unsigned long rate = clk_get_rate(clk->parent);
printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
if (__raw_readl(S3C_CLK_DIV0) & S3C6400_CLKDIV0_MPLL_MASK)
rate /= 2;
return rate;
}
static struct clk_ops clk_dout_ops = {
.get_rate = s3c64xx_clk_doutmpll_get_rate,
};
static struct clk clk_dout_mpll = {
.name = "dout_mpll",
.parent = &clk_mout_mpll.clk,
.ops = &clk_dout_ops,
};
static struct clk *clkset_spi_mmc_list[] = {
&clk_mout_epll.clk,
&clk_dout_mpll,
&clk_fin_epll,
&clk_27m,
};
static struct clksrc_sources clkset_spi_mmc = {
.sources = clkset_spi_mmc_list,
.nr_sources = ARRAY_SIZE(clkset_spi_mmc_list),
};
static struct clk *clkset_irda_list[] = {
&clk_mout_epll.clk,
&clk_dout_mpll,
NULL,
&clk_27m,
};
static struct clksrc_sources clkset_irda = {
.sources = clkset_irda_list,
.nr_sources = ARRAY_SIZE(clkset_irda_list),
};
static struct clk *clkset_uart_list[] = {
&clk_mout_epll.clk,
&clk_dout_mpll,
NULL,
NULL
};
static struct clksrc_sources clkset_uart = {
.sources = clkset_uart_list,
.nr_sources = ARRAY_SIZE(clkset_uart_list),
};
static struct clk *clkset_uhost_list[] = {
&clk_48m,
&clk_mout_epll.clk,
&clk_dout_mpll,
&clk_fin_epll,
};
static struct clksrc_sources clkset_uhost = {
.sources = clkset_uhost_list,
.nr_sources = ARRAY_SIZE(clkset_uhost_list),
};
/* The peripheral clocks are all controlled via clocksource followed
* by an optional divider and gate stage. We currently roll this into
* one clock which hides the intermediate clock from the mux.
*
* Note, the JPEG clock can only be an even divider...
*
* The scaler and LCD clocks depend on the S3C64XX version, and also
* have a common parent divisor so are not included here.
*/
/* clocks that feed other parts of the clock source tree */
static struct clk clk_iis_cd0 = {
.name = "iis_cdclk0",
};
static struct clk clk_iis_cd1 = {
.name = "iis_cdclk1",
};
static struct clk clk_iisv4_cd = {
.name = "iis_cdclk_v4",
};
static struct clk clk_pcm_cd = {
.name = "pcm_cdclk",
};
static struct clk *clkset_audio0_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_dout_mpll,
[2] = &clk_fin_epll,
[3] = &clk_iis_cd0,
[4] = &clk_pcm_cd,
};
static struct clksrc_sources clkset_audio0 = {
.sources = clkset_audio0_list,
.nr_sources = ARRAY_SIZE(clkset_audio0_list),
};
static struct clk *clkset_audio1_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_dout_mpll,
[2] = &clk_fin_epll,
[3] = &clk_iis_cd1,
[4] = &clk_pcm_cd,
};
static struct clksrc_sources clkset_audio1 = {
.sources = clkset_audio1_list,
.nr_sources = ARRAY_SIZE(clkset_audio1_list),
};
#ifdef CONFIG_CPU_S3C6410
static struct clk *clkset_audio2_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_dout_mpll,
[2] = &clk_fin_epll,
[3] = &clk_iisv4_cd,
[4] = &clk_pcm_cd,
};
static struct clksrc_sources clkset_audio2 = {
.sources = clkset_audio2_list,
.nr_sources = ARRAY_SIZE(clkset_audio2_list),
};
#endif
static struct clksrc_clk clksrcs[] = {
{
.clk = {
.name = "usb-bus-host",
.ctrlbit = S3C_CLKCON_SCLK_UHOST,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 5, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 20, .size = 4 },
.sources = &clkset_uhost,
}, {
.clk = {
.name = "irda-bus",
.ctrlbit = S3C_CLKCON_SCLK_IRDA,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 24, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 20, .size = 4 },
.sources = &clkset_irda,
}, {
.clk = {
.name = "camera",
.ctrlbit = S3C_CLKCON_SCLK_CAM,
.enable = s3c64xx_sclk_ctrl,
.parent = &clk_h2,
},
.reg_div = { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4 },
},
};
/* Where does UCLK0 come from? */
static struct clksrc_clk clk_sclk_uclk = {
.clk = {
.name = "uclk1",
.ctrlbit = S3C_CLKCON_SCLK_UART,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 13, .size = 1 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4 },
.sources = &clkset_uart,
};
static struct clksrc_clk clk_sclk_mmc0 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.0",
.ctrlbit = S3C_CLKCON_SCLK_MMC0,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
.sources = &clkset_spi_mmc,
};
static struct clksrc_clk clk_sclk_mmc1 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.1",
.ctrlbit = S3C_CLKCON_SCLK_MMC1,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
.sources = &clkset_spi_mmc,
};
static struct clksrc_clk clk_sclk_mmc2 = {
.clk = {
.name = "mmc_bus",
.devname = "s3c-sdhci.2",
.ctrlbit = S3C_CLKCON_SCLK_MMC2,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
.sources = &clkset_spi_mmc,
};
static struct clksrc_clk clk_sclk_spi0 = {
.clk = {
.name = "spi-bus",
.devname = "s3c6410-spi.0",
.ctrlbit = S3C_CLKCON_SCLK_SPI0,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
.sources = &clkset_spi_mmc,
};
static struct clksrc_clk clk_sclk_spi1 = {
.clk = {
.name = "spi-bus",
.devname = "s3c6410-spi.1",
.ctrlbit = S3C_CLKCON_SCLK_SPI1,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
.sources = &clkset_spi_mmc,
};
static struct clksrc_clk clk_audio_bus0 = {
.clk = {
.name = "audio-bus",
.devname = "samsung-i2s.0",
.ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 7, .size = 3 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 8, .size = 4 },
.sources = &clkset_audio0,
};
static struct clksrc_clk clk_audio_bus1 = {
.clk = {
.name = "audio-bus",
.devname = "samsung-i2s.1",
.ctrlbit = S3C_CLKCON_SCLK_AUDIO1,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 10, .size = 3 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 12, .size = 4 },
.sources = &clkset_audio1,
};
#ifdef CONFIG_CPU_S3C6410
static struct clksrc_clk clk_audio_bus2 = {
.clk = {
.name = "audio-bus",
.devname = "samsung-i2s.2",
.ctrlbit = S3C6410_CLKCON_SCLK_AUDIO2,
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C6410_CLK_SRC2, .shift = 0, .size = 3 },
.reg_div = { .reg = S3C_CLK_DIV2, .shift = 24, .size = 4 },
.sources = &clkset_audio2,
};
#endif
/* Clock initialisation code */
static struct clksrc_clk *init_parents[] = {
&clk_mout_apll,
&clk_mout_epll,
&clk_mout_mpll,
};
static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_uclk,
&clk_sclk_mmc0,
&clk_sclk_mmc1,
&clk_sclk_mmc2,
&clk_sclk_spi0,
&clk_sclk_spi1,
&clk_audio_bus0,
&clk_audio_bus1,
};
static struct clk *clk_cdev[] = {
&clk_hsmmc0,
&clk_hsmmc1,
&clk_hsmmc2,
&clk_48m_spi0,
&clk_48m_spi1,
&clk_i2s0,
&clk_i2s1,
};
static struct clk_lookup s3c64xx_clk_lookup[] = {
CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
CLKDEV_INIT("s3c6410-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
CLKDEV_INIT("s3c6410-spi.0", "spi_busclk2", &clk_48m_spi0),
CLKDEV_INIT("s3c6410-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
CLKDEV_INIT("s3c6410-spi.1", "spi_busclk2", &clk_48m_spi1),
CLKDEV_INIT("samsung-i2s.0", "i2s_opclk0", &clk_i2s0),
CLKDEV_INIT("samsung-i2s.0", "i2s_opclk1", &clk_audio_bus0.clk),
CLKDEV_INIT("samsung-i2s.1", "i2s_opclk0", &clk_i2s1),
CLKDEV_INIT("samsung-i2s.1", "i2s_opclk1", &clk_audio_bus1.clk),
#ifdef CONFIG_CPU_S3C6410
CLKDEV_INIT("samsung-i2s.2", "i2s_opclk0", &clk_i2s2),
CLKDEV_INIT("samsung-i2s.2", "i2s_opclk1", &clk_audio_bus2.clk),
#endif
};
#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
void __init_or_cpufreq s3c64xx_setup_clocks(void)
{
struct clk *xtal_clk;
unsigned long xtal;
unsigned long fclk;
unsigned long hclk;
unsigned long hclk2;
unsigned long pclk;
unsigned long epll;
unsigned long apll;
unsigned long mpll;
unsigned int ptr;
u32 clkdiv0;
printk(KERN_DEBUG "%s: registering clocks\n", __func__);
clkdiv0 = __raw_readl(S3C_CLK_DIV0);
printk(KERN_DEBUG "%s: clkdiv0 = %08x\n", __func__, clkdiv0);
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);
/* For now assume the mux always selects the crystal */
clk_ext_xtal_mux.parent = xtal_clk;
epll = s3c_get_pll6553x(xtal, __raw_readl(S3C_EPLL_CON0),
__raw_readl(S3C_EPLL_CON1));
mpll = s3c6400_get_pll(xtal, __raw_readl(S3C_MPLL_CON));
apll = s3c6400_get_pll(xtal, __raw_readl(S3C_APLL_CON));
fclk = mpll;
printk(KERN_INFO "S3C64XX: PLL settings, A=%ld, M=%ld, E=%ld\n",
apll, mpll, epll);
if(__raw_readl(S3C64XX_OTHERS) & S3C64XX_OTHERS_SYNCMUXSEL)
/* Synchronous mode */
hclk2 = apll / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK2);
else
/* Asynchronous mode */
hclk2 = mpll / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK2);
hclk = hclk2 / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK);
pclk = hclk2 / GET_DIV(clkdiv0, S3C6400_CLKDIV0_PCLK);
printk(KERN_INFO "S3C64XX: HCLK2=%ld, HCLK=%ld, PCLK=%ld\n",
hclk2, hclk, pclk);
clk_fout_mpll.rate = mpll;
clk_fout_epll.rate = epll;
clk_fout_apll.rate = apll;
clk_h2.rate = hclk2;
clk_h.rate = hclk;
clk_p.rate = pclk;
clk_f.rate = fclk;
for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
s3c_set_clksrc(init_parents[ptr], true);
for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
s3c_set_clksrc(&clksrcs[ptr], true);
}
static struct clk *clks1[] __initdata = {
&clk_ext_xtal_mux,
&clk_iis_cd0,
&clk_iis_cd1,
&clk_iisv4_cd,
&clk_pcm_cd,
&clk_mout_epll.clk,
&clk_mout_mpll.clk,
&clk_dout_mpll,
&clk_arm,
};
static struct clk *clks[] __initdata = {
&clk_ext,
&clk_epll,
&clk_27m,
&clk_48m,
&clk_h2,
&clk_xusbxti,
};
/**
* s3c64xx_register_clocks - register clocks for s3c6400 and s3c6410
* @xtal: The rate for the clock crystal feeding the PLLs.
* @armclk_divlimit: Divisor mask for ARMCLK.
*
* Register the clocks for the S3C6400 and S3C6410 SoC range, such
* as ARMCLK as well as the necessary parent clocks.
*
* This call does not setup the clocks, which is left to the
* s3c64xx_setup_clocks() call which may be needed by the cpufreq
* or resume code to re-set the clocks if the bootloader has changed
* them.
*/
void __init s3c64xx_register_clocks(unsigned long xtal,
unsigned armclk_divlimit)
{
unsigned int cnt;
armclk_mask = armclk_divlimit;
s3c24xx_register_baseclocks(xtal);
s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
s3c_disable_clocks(clk_cdev[cnt], 1);
s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)
s3c_register_clksrc(clksrc_cdev[cnt], 1);
clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup));
}
arch/arm/mach-s3c64xx/common.h
View file @ 66fcbe6b
...@@ -37,7 +37,6 @@ extern void s3c6400_init_irq(void); ...@@ -37,7 +37,6 @@ extern void s3c6400_init_irq(void);
extern void s3c6400_map_io(void); extern void s3c6400_map_io(void);
#else #else
#define s3c6400_init_clocks NULL
#define s3c6400_map_io NULL #define s3c6400_map_io NULL
#define s3c6400_init NULL #define s3c6400_init NULL
#endif #endif
...@@ -49,7 +48,6 @@ extern void s3c6410_init_irq(void); ...@@ -49,7 +48,6 @@ extern void s3c6410_init_irq(void);
extern void s3c6410_map_io(void); extern void s3c6410_map_io(void);
#else #else
#define s3c6410_init_clocks NULL
#define s3c6410_map_io NULL #define s3c6410_map_io NULL
#define s3c6410_init NULL #define s3c6410_init NULL
#endif #endif
......
arch/arm/mach-s3c64xx/include/mach/regs-clock.h
View file @ 66fcbe6b
...@@ -15,145 +15,21 @@ ...@@ -15,145 +15,21 @@
#ifndef __PLAT_REGS_CLOCK_H #ifndef __PLAT_REGS_CLOCK_H
#define __PLAT_REGS_CLOCK_H __FILE__ #define __PLAT_REGS_CLOCK_H __FILE__
/*
* FIXME: Remove remaining definitions
*/
#define S3C_CLKREG(x) (S3C_VA_SYS + (x)) #define S3C_CLKREG(x) (S3C_VA_SYS + (x))
#define S3C_APLL_LOCK S3C_CLKREG(0x00)
#define S3C_MPLL_LOCK S3C_CLKREG(0x04)
#define S3C_EPLL_LOCK S3C_CLKREG(0x08)
#define S3C_APLL_CON S3C_CLKREG(0x0C)
#define S3C_MPLL_CON S3C_CLKREG(0x10)
#define S3C_EPLL_CON0 S3C_CLKREG(0x14)
#define S3C_EPLL_CON1 S3C_CLKREG(0x18)
#define S3C_CLK_SRC S3C_CLKREG(0x1C)
#define S3C_CLK_DIV0 S3C_CLKREG(0x20)
#define S3C_CLK_DIV1 S3C_CLKREG(0x24)
#define S3C_CLK_DIV2 S3C_CLKREG(0x28)
#define S3C_CLK_OUT S3C_CLKREG(0x2C)
#define S3C_HCLK_GATE S3C_CLKREG(0x30)
#define S3C_PCLK_GATE S3C_CLKREG(0x34) #define S3C_PCLK_GATE S3C_CLKREG(0x34)
#define S3C_SCLK_GATE S3C_CLKREG(0x38)
#define S3C_MEM0_GATE S3C_CLKREG(0x3C)
#define S3C6410_CLK_SRC2 S3C_CLKREG(0x10C) #define S3C6410_CLK_SRC2 S3C_CLKREG(0x10C)
#define S3C_MEM_SYS_CFG S3C_CLKREG(0x120) #define S3C_MEM_SYS_CFG S3C_CLKREG(0x120)
/* CLKDIV0 */
#define S3C6400_CLKDIV0_PCLK_MASK (0xf << 12)
#define S3C6400_CLKDIV0_PCLK_SHIFT (12)
#define S3C6400_CLKDIV0_HCLK2_MASK (0x7 << 9)
#define S3C6400_CLKDIV0_HCLK2_SHIFT (9)
#define S3C6400_CLKDIV0_HCLK_MASK (0x1 << 8)
#define S3C6400_CLKDIV0_HCLK_SHIFT (8)
#define S3C6400_CLKDIV0_MPLL_MASK (0x1 << 4)
#define S3C6400_CLKDIV0_MPLL_SHIFT (4)
#define S3C6400_CLKDIV0_ARM_MASK (0x7 << 0)
#define S3C6410_CLKDIV0_ARM_MASK (0xf << 0)
#define S3C6400_CLKDIV0_ARM_SHIFT (0)
/* HCLK GATE Registers */
#define S3C_CLKCON_HCLK_3DSE (1<<31)
#define S3C_CLKCON_HCLK_UHOST (1<<29)
#define S3C_CLKCON_HCLK_SECUR (1<<28)
#define S3C_CLKCON_HCLK_SDMA1 (1<<27)
#define S3C_CLKCON_HCLK_SDMA0 (1<<26)
#define S3C_CLKCON_HCLK_IROM (1<<25)
#define S3C_CLKCON_HCLK_DDR1 (1<<24)
#define S3C_CLKCON_HCLK_DDR0 (1<<23)
#define S3C_CLKCON_HCLK_MEM1 (1<<22)
#define S3C_CLKCON_HCLK_MEM0 (1<<21)
#define S3C_CLKCON_HCLK_USB (1<<20)
#define S3C_CLKCON_HCLK_HSMMC2 (1<<19)
#define S3C_CLKCON_HCLK_HSMMC1 (1<<18)
#define S3C_CLKCON_HCLK_HSMMC0 (1<<17)
#define S3C_CLKCON_HCLK_MDP (1<<16)
#define S3C_CLKCON_HCLK_DHOST (1<<15)
#define S3C_CLKCON_HCLK_IHOST (1<<14)
#define S3C_CLKCON_HCLK_DMA1 (1<<13)
#define S3C_CLKCON_HCLK_DMA0 (1<<12)
#define S3C_CLKCON_HCLK_JPEG (1<<11)
#define S3C_CLKCON_HCLK_CAMIF (1<<10)
#define S3C_CLKCON_HCLK_SCALER (1<<9)
#define S3C_CLKCON_HCLK_2D (1<<8)
#define S3C_CLKCON_HCLK_TV (1<<7)
#define S3C_CLKCON_HCLK_POST0 (1<<5)
#define S3C_CLKCON_HCLK_ROT (1<<4)
#define S3C_CLKCON_HCLK_LCD (1<<3)
#define S3C_CLKCON_HCLK_TZIC (1<<2)
#define S3C_CLKCON_HCLK_INTC (1<<1)
#define S3C_CLKCON_HCLK_MFC (1<<0)
/* PCLK GATE Registers */ /* PCLK GATE Registers */
#define S3C6410_CLKCON_PCLK_I2C1 (1<<27)
#define S3C6410_CLKCON_PCLK_IIS2 (1<<26)
#define S3C_CLKCON_PCLK_SKEY (1<<24)
#define S3C_CLKCON_PCLK_CHIPID (1<<23)
#define S3C_CLKCON_PCLK_SPI1 (1<<22)
#define S3C_CLKCON_PCLK_SPI0 (1<<21)
#define S3C_CLKCON_PCLK_HSIRX (1<<20)
#define S3C_CLKCON_PCLK_HSITX (1<<19)
#define S3C_CLKCON_PCLK_GPIO (1<<18)
#define S3C_CLKCON_PCLK_IIC (1<<17)
#define S3C_CLKCON_PCLK_IIS1 (1<<16)
#define S3C_CLKCON_PCLK_IIS0 (1<<15)
#define S3C_CLKCON_PCLK_AC97 (1<<14)
#define S3C_CLKCON_PCLK_TZPC (1<<13)
#define S3C_CLKCON_PCLK_TSADC (1<<12)
#define S3C_CLKCON_PCLK_KEYPAD (1<<11)
#define S3C_CLKCON_PCLK_IRDA (1<<10)
#define S3C_CLKCON_PCLK_PCM1 (1<<9)
#define S3C_CLKCON_PCLK_PCM0 (1<<8)
#define S3C_CLKCON_PCLK_PWM (1<<7)
#define S3C_CLKCON_PCLK_RTC (1<<6)
#define S3C_CLKCON_PCLK_WDT (1<<5)
#define S3C_CLKCON_PCLK_UART3 (1<<4) #define S3C_CLKCON_PCLK_UART3 (1<<4)
#define S3C_CLKCON_PCLK_UART2 (1<<3) #define S3C_CLKCON_PCLK_UART2 (1<<3)
#define S3C_CLKCON_PCLK_UART1 (1<<2) #define S3C_CLKCON_PCLK_UART1 (1<<2)
#define S3C_CLKCON_PCLK_UART0 (1<<1) #define S3C_CLKCON_PCLK_UART0 (1<<1)
#define S3C_CLKCON_PCLK_MFC (1<<0)
/* SCLK GATE Registers */
#define S3C_CLKCON_SCLK_UHOST (1<<30)
#define S3C_CLKCON_SCLK_MMC2_48 (1<<29)
#define S3C_CLKCON_SCLK_MMC1_48 (1<<28)
#define S3C_CLKCON_SCLK_MMC0_48 (1<<27)
#define S3C_CLKCON_SCLK_MMC2 (1<<26)
#define S3C_CLKCON_SCLK_MMC1 (1<<25)
#define S3C_CLKCON_SCLK_MMC0 (1<<24)
#define S3C_CLKCON_SCLK_SPI1_48 (1<<23)
#define S3C_CLKCON_SCLK_SPI0_48 (1<<22)
#define S3C_CLKCON_SCLK_SPI1 (1<<21)
#define S3C_CLKCON_SCLK_SPI0 (1<<20)
#define S3C_CLKCON_SCLK_DAC27 (1<<19)
#define S3C_CLKCON_SCLK_TV27 (1<<18)
#define S3C_CLKCON_SCLK_SCALER27 (1<<17)
#define S3C_CLKCON_SCLK_SCALER (1<<16)
#define S3C_CLKCON_SCLK_LCD27 (1<<15)
#define S3C_CLKCON_SCLK_LCD (1<<14)
#define S3C6400_CLKCON_SCLK_POST1_27 (1<<13)
#define S3C6410_CLKCON_FIMC (1<<13)
#define S3C_CLKCON_SCLK_POST0_27 (1<<12)
#define S3C6400_CLKCON_SCLK_POST1 (1<<11)
#define S3C6410_CLKCON_SCLK_AUDIO2 (1<<11)
#define S3C_CLKCON_SCLK_POST0 (1<<10)
#define S3C_CLKCON_SCLK_AUDIO1 (1<<9)
#define S3C_CLKCON_SCLK_AUDIO0 (1<<8)
#define S3C_CLKCON_SCLK_SECUR (1<<7)
#define S3C_CLKCON_SCLK_IRDA (1<<6)
#define S3C_CLKCON_SCLK_UART (1<<5)
#define S3C_CLKCON_SCLK_ONENAND (1<<4)
#define S3C_CLKCON_SCLK_MFC (1<<3)
#define S3C_CLKCON_SCLK_CAM (1<<2)
#define S3C_CLKCON_SCLK_JPEG (1<<1)
/* CLKSRC */
#define S3C6400_CLKSRC_APLL_MOUT (1 << 0)
#define S3C6400_CLKSRC_MPLL_MOUT (1 << 1)
#define S3C6400_CLKSRC_EPLL_MOUT (1 << 2)
#define S3C6400_CLKSRC_APLL_MOUT_SHIFT (0)
#define S3C6400_CLKSRC_MPLL_MOUT_SHIFT (1)
#define S3C6400_CLKSRC_EPLL_MOUT_SHIFT (2)
#define S3C6400_CLKSRC_MFC (1 << 4)
/* MEM_SYS_CFG */ /* MEM_SYS_CFG */
#define MEM_SYS_CFG_INDEP_CF 0x4000 #define MEM_SYS_CFG_INDEP_CF 0x4000
......
arch/arm/mach-s3c64xx/pm.c
View file @ 66fcbe6b
...@@ -194,29 +194,8 @@ void s3c_pm_debug_smdkled(u32 set, u32 clear) ...@@ -194,29 +194,8 @@ void s3c_pm_debug_smdkled(u32 set, u32 clear)
#endif #endif
static struct sleep_save core_save[] = { static struct sleep_save core_save[] = {
SAVE_ITEM(S3C_APLL_LOCK),
SAVE_ITEM(S3C_MPLL_LOCK),
SAVE_ITEM(S3C_EPLL_LOCK),
SAVE_ITEM(S3C_CLK_SRC),
SAVE_ITEM(S3C_CLK_DIV0),
SAVE_ITEM(S3C_CLK_DIV1),
SAVE_ITEM(S3C_CLK_DIV2),
SAVE_ITEM(S3C_CLK_OUT),
SAVE_ITEM(S3C_HCLK_GATE),
SAVE_ITEM(S3C_PCLK_GATE),
SAVE_ITEM(S3C_SCLK_GATE),
SAVE_ITEM(S3C_MEM0_GATE),
SAVE_ITEM(S3C_EPLL_CON1),
SAVE_ITEM(S3C_EPLL_CON0),
SAVE_ITEM(S3C64XX_MEM0DRVCON), SAVE_ITEM(S3C64XX_MEM0DRVCON),
SAVE_ITEM(S3C64XX_MEM1DRVCON), SAVE_ITEM(S3C64XX_MEM1DRVCON),
#ifndef CONFIG_CPU_FREQ
SAVE_ITEM(S3C_APLL_CON),
SAVE_ITEM(S3C_MPLL_CON),
#endif
}; };
static struct sleep_save misc_save[] = { static struct sleep_save misc_save[] = {
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7