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Diffstat (limited to 'arch/arm/mach-s3c64xx/clock.c')
-rw-r--r--arch/arm/mach-s3c64xx/clock.c99
1 files changed, 35 insertions, 64 deletions
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index fdfc4d5e37a1..39c238d7a3dc 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -25,13 +25,13 @@
#include <mach/regs-sys.h>
#include <mach/regs-clock.h>
-#include <mach/pll.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>
/* 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.
@@ -39,7 +39,6 @@
static struct clk clk_ext_xtal_mux = {
.name = "ext_xtal",
- .id = -1,
};
#define clk_fin_apll clk_ext_xtal_mux
@@ -51,13 +50,11 @@ static struct clk clk_ext_xtal_mux = {
struct clk clk_h2 = {
.name = "hclk2",
- .id = -1,
.rate = 0,
};
struct clk clk_27m = {
.name = "clk_27m",
- .id = -1,
.rate = 27000000,
};
@@ -83,14 +80,12 @@ static int clk_48m_ctrl(struct clk *clk, int enable)
struct clk clk_48m = {
.name = "clk_48m",
- .id = -1,
.rate = 48000000,
.enable = clk_48m_ctrl,
};
struct clk clk_xusbxti = {
.name = "xusbxti",
- .id = -1,
.rate = 48000000,
};
@@ -130,109 +125,101 @@ int s3c64xx_sclk_ctrl(struct clk *clk, int enable)
static struct clk init_clocks_off[] = {
{
.name = "nand",
- .id = -1,
.parent = &clk_h,
}, {
.name = "rtc",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_RTC,
}, {
.name = "adc",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_TSADC,
}, {
.name = "i2c",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIC,
}, {
.name = "i2c",
- .id = 1,
+ .devname = "s3c2440-i2c.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C6410_CLKCON_PCLK_I2C1,
}, {
.name = "iis",
- .id = 0,
+ .devname = "samsung-i2s.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIS0,
}, {
.name = "iis",
- .id = 1,
+ .devname = "samsung-i2s.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_IIS1,
}, {
#ifdef CONFIG_CPU_S3C6410
.name = "iis",
- .id = -1, /* There's only one IISv4 port */
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C6410_CLKCON_PCLK_IIS2,
}, {
#endif
.name = "keypad",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_KEYPAD,
}, {
.name = "spi",
- .id = 0,
+ .devname = "s3c64xx-spi.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_SPI0,
}, {
.name = "spi",
- .id = 1,
+ .devname = "s3c64xx-spi.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_SPI1,
}, {
.name = "spi_48m",
- .id = 0,
+ .devname = "s3c64xx-spi.0",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
}, {
.name = "spi_48m",
- .id = 1,
+ .devname = "s3c64xx-spi.1",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
}, {
.name = "48m",
- .id = 0,
+ .devname = "s3c-sdhci.0",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC0_48,
}, {
.name = "48m",
- .id = 1,
+ .devname = "s3c-sdhci.1",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC1_48,
}, {
.name = "48m",
- .id = 2,
+ .devname = "s3c-sdhci.2",
.parent = &clk_48m,
.enable = s3c64xx_sclk_ctrl,
.ctrlbit = S3C_CLKCON_SCLK_MMC2_48,
}, {
.name = "dma0",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_DMA0,
}, {
.name = "dma1",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_DMA1,
@@ -242,89 +229,81 @@ static struct clk init_clocks_off[] = {
static struct clk init_clocks[] = {
{
.name = "lcd",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_LCD,
}, {
.name = "gpio",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_GPIO,
}, {
.name = "usb-host",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_UHOST,
}, {
.name = "hsmmc",
- .id = 0,
+ .devname = "s3c-sdhci.0",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
}, {
.name = "hsmmc",
- .id = 1,
+ .devname = "s3c-sdhci.1",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
}, {
.name = "hsmmc",
- .id = 2,
+ .devname = "s3c-sdhci.2",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
}, {
.name = "otg",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_USB,
}, {
.name = "timers",
- .id = -1,
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_PWM,
}, {
.name = "uart",
- .id = 0,
+ .devname = "s3c6400-uart.0",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART0,
}, {
.name = "uart",
- .id = 1,
+ .devname = "s3c6400-uart.1",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART1,
}, {
.name = "uart",
- .id = 2,
+ .devname = "s3c6400-uart.2",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART2,
}, {
.name = "uart",
- .id = 3,
+ .devname = "s3c6400-uart.3",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_UART3,
}, {
.name = "watchdog",
- .id = -1,
.parent = &clk_p,
.ctrlbit = S3C_CLKCON_PCLK_WDT,
}, {
.name = "ac97",
- .id = -1,
.parent = &clk_p,
.ctrlbit = S3C_CLKCON_PCLK_AC97,
}, {
.name = "cfcon",
- .id = -1,
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_IHOST,
@@ -334,7 +313,6 @@ static struct clk init_clocks[] = {
static struct clk clk_fout_apll = {
.name = "fout_apll",
- .id = -1,
};
static struct clk *clk_src_apll_list[] = {
@@ -350,7 +328,6 @@ static struct clksrc_sources clk_src_apll = {
static struct clksrc_clk clk_mout_apll = {
.clk = {
.name = "mout_apll",
- .id = -1,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 0, .size = 1 },
.sources = &clk_src_apll,
@@ -369,7 +346,6 @@ static struct clksrc_sources clk_src_epll = {
static struct clksrc_clk clk_mout_epll = {
.clk = {
.name = "mout_epll",
- .id = -1,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 2, .size = 1 },
.sources = &clk_src_epll,
@@ -388,7 +364,6 @@ static struct clksrc_sources clk_src_mpll = {
static struct clksrc_clk clk_mout_mpll = {
.clk = {
.name = "mout_mpll",
- .id = -1,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 1, .size = 1 },
.sources = &clk_src_mpll,
@@ -446,7 +421,6 @@ static int s3c64xx_clk_arm_set_rate(struct clk *clk, unsigned long rate)
static struct clk clk_arm = {
.name = "armclk",
- .id = -1,
.parent = &clk_mout_apll.clk,
.ops = &(struct clk_ops) {
.get_rate = s3c64xx_clk_arm_get_rate,
@@ -473,7 +447,6 @@ static struct clk_ops clk_dout_ops = {
static struct clk clk_dout_mpll = {
.name = "dout_mpll",
- .id = -1,
.parent = &clk_mout_mpll.clk,
.ops = &clk_dout_ops,
};
@@ -540,22 +513,18 @@ static struct clksrc_sources clkset_uhost = {
static struct clk clk_iis_cd0 = {
.name = "iis_cdclk0",
- .id = -1,
};
static struct clk clk_iis_cd1 = {
.name = "iis_cdclk1",
- .id = -1,
};
static struct clk clk_iisv4_cd = {
.name = "iis_cdclk_v4",
- .id = -1,
};
static struct clk clk_pcm_cd = {
.name = "pcm_cdclk",
- .id = -1,
};
static struct clk *clkset_audio0_list[] = {
@@ -610,7 +579,7 @@ static struct clksrc_clk clksrcs[] = {
{
.clk = {
.name = "mmc_bus",
- .id = 0,
+ .devname = "s3c-sdhci.0",
.ctrlbit = S3C_CLKCON_SCLK_MMC0,
.enable = s3c64xx_sclk_ctrl,
},
@@ -620,7 +589,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "mmc_bus",
- .id = 1,
+ .devname = "s3c-sdhci.1",
.ctrlbit = S3C_CLKCON_SCLK_MMC1,
.enable = s3c64xx_sclk_ctrl,
},
@@ -630,7 +599,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "mmc_bus",
- .id = 2,
+ .devname = "s3c-sdhci.2",
.ctrlbit = S3C_CLKCON_SCLK_MMC2,
.enable = s3c64xx_sclk_ctrl,
},
@@ -640,7 +609,6 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "usb-bus-host",
- .id = -1,
.ctrlbit = S3C_CLKCON_SCLK_UHOST,
.enable = s3c64xx_sclk_ctrl,
},
@@ -650,7 +618,6 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "uclk1",
- .id = -1,
.ctrlbit = S3C_CLKCON_SCLK_UART,
.enable = s3c64xx_sclk_ctrl,
},
@@ -661,7 +628,7 @@ static struct clksrc_clk clksrcs[] = {
/* Where does UCLK0 come from? */
.clk = {
.name = "spi-bus",
- .id = 0,
+ .devname = "s3c64xx-spi.0",
.ctrlbit = S3C_CLKCON_SCLK_SPI0,
.enable = s3c64xx_sclk_ctrl,
},
@@ -671,8 +638,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "spi-bus",
- .id = 1,
- .ctrlbit = S3C_CLKCON_SCLK_SPI1,
+ .devname = "s3c64xx-spi.1",
.enable = s3c64xx_sclk_ctrl,
},
.reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
@@ -681,7 +647,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "audio-bus",
- .id = 0,
+ .devname = "samsung-i2s.0",
.ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
.enable = s3c64xx_sclk_ctrl,
},
@@ -691,7 +657,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "audio-bus",
- .id = 1,
+ .devname = "samsung-i2s.1",
.ctrlbit = S3C_CLKCON_SCLK_AUDIO1,
.enable = s3c64xx_sclk_ctrl,
},
@@ -701,7 +667,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "audio-bus",
- .id = 2,
+ .devname = "samsung-i2s.2",
.ctrlbit = S3C6410_CLKCON_SCLK_AUDIO2,
.enable = s3c64xx_sclk_ctrl,
},
@@ -711,7 +677,6 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "irda-bus",
- .id = 0,
.ctrlbit = S3C_CLKCON_SCLK_IRDA,
.enable = s3c64xx_sclk_ctrl,
},
@@ -721,7 +686,6 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "camera",
- .id = -1,
.ctrlbit = S3C_CLKCON_SCLK_CAM,
.enable = s3c64xx_sclk_ctrl,
},
@@ -771,7 +735,8 @@ void __init_or_cpufreq s3c6400_setup_clocks(void)
/* For now assume the mux always selects the crystal */
clk_ext_xtal_mux.parent = xtal_clk;
- epll = s3c6400_get_epll(xtal);
+ 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));
@@ -780,7 +745,13 @@ void __init_or_cpufreq s3c6400_setup_clocks(void)
printk(KERN_INFO "S3C64XX: PLL settings, A=%ld, M=%ld, E=%ld\n",
apll, mpll, epll);
- hclk2 = mpll / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK2);
+ 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 00:12:00 +0000