include/asm-arm/arch-s3c2410/regs-clock.h

   1 /* linux/include/asm-arm/arch-s3c2410/regs-clock.h
   2  *
   3  * Copyright (c) 2003,2004,2005,2006 Simtec Electronics <linux@simtec.co.uk>
   4  *                    http://armlinux.simtec.co.uk/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * S3C2410 clock register definitions
  11 */
  12
  13 #ifndef __ASM_ARM_REGS_CLOCK
  14 #define __ASM_ARM_REGS_CLOCK "$Id: clock.h,v 1.4 2003/04/30 14:50:51 ben Exp $"
  15
  16 #define S3C2410_CLKREG(x) ((x) + S3C24XX_VA_CLKPWR)
  17
  18 #define S3C2410_PLLVAL(_m,_p,_s) ((_m) << 12 | ((_p) << 4) | ((_s)))
  19
  20 #define S3C2410_LOCKTIME    S3C2410_CLKREG(0x00)
  21 #define S3C2410_MPLLCON     S3C2410_CLKREG(0x04)
  22 #define S3C2410_UPLLCON     S3C2410_CLKREG(0x08)
  23 #define S3C2410_CLKCON      S3C2410_CLKREG(0x0C)
  24 #define S3C2410_CLKSLOW     S3C2410_CLKREG(0x10)
  25 #define S3C2410_CLKDIVN     S3C2410_CLKREG(0x14)
  26
  27 #define S3C2410_CLKCON_IDLE          (1<<2)
  28 #define S3C2410_CLKCON_POWER         (1<<3)
  29 #define S3C2410_CLKCON_NAND          (1<<4)
  30 #define S3C2410_CLKCON_LCDC          (1<<5)
  31 #define S3C2410_CLKCON_USBH          (1<<6)
  32 #define S3C2410_CLKCON_USBD          (1<<7)
  33 #define S3C2410_CLKCON_PWMT          (1<<8)
  34 #define S3C2410_CLKCON_SDI           (1<<9)
  35 #define S3C2410_CLKCON_UART0         (1<<10)
  36 #define S3C2410_CLKCON_UART1         (1<<11)
  37 #define S3C2410_CLKCON_UART2         (1<<12)
  38 #define S3C2410_CLKCON_GPIO          (1<<13)
  39 #define S3C2410_CLKCON_RTC           (1<<14)
  40 #define S3C2410_CLKCON_ADC           (1<<15)
  41 #define S3C2410_CLKCON_IIC           (1<<16)
  42 #define S3C2410_CLKCON_IIS           (1<<17)
  43 #define S3C2410_CLKCON_SPI           (1<<18)
  44
  45 #define S3C2410_PLLCON_MDIVSHIFT     12
  46 #define S3C2410_PLLCON_PDIVSHIFT     4
  47 #define S3C2410_PLLCON_SDIVSHIFT     0
  48 #define S3C2410_PLLCON_MDIVMASK      ((1<<(1+(19-12)))-1)
  49 #define S3C2410_PLLCON_PDIVMASK      ((1<<5)-1)
  50 #define S3C2410_PLLCON_SDIVMASK      3
  51
  52 /* DCLKCON register addresses in gpio.h */
  53
  54 #define S3C2410_DCLKCON_DCLK0EN      (1<<0)
  55 #define S3C2410_DCLKCON_DCLK0_PCLK   (0<<1)
  56 #define S3C2410_DCLKCON_DCLK0_UCLK   (1<<1)
  57 #define S3C2410_DCLKCON_DCLK0_DIV(x) (((x) - 1 )<<4)
  58 #define S3C2410_DCLKCON_DCLK0_CMP(x) (((x) - 1 )<<8)
  59 #define S3C2410_DCLKCON_DCLK0_DIV_MASK ((0xf)<<4)
  60 #define S3C2410_DCLKCON_DCLK0_CMP_MASK ((0xf)<<8)
  61
  62 #define S3C2410_DCLKCON_DCLK1EN      (1<<16)
  63 #define S3C2410_DCLKCON_DCLK1_PCLK   (0<<17)
  64 #define S3C2410_DCLKCON_DCLK1_UCLK   (1<<17)
  65 #define S3C2410_DCLKCON_DCLK1_DIV(x) (((x) - 1) <<20)
  66 #define S3C2410_DCLKCON_DCLK1_CMP(x) (((x) - 1) <<24)
  67 #define S3C2410_DCLKCON_DCLK1_DIV_MASK ((0xf) <<20)
  68 #define S3C2410_DCLKCON_DCLK1_CMP_MASK ((0xf) <<24)
  69
  70 #define S3C2410_CLKDIVN_PDIVN        (1<<0)
  71 #define S3C2410_CLKDIVN_HDIVN        (1<<1)
  72
  73 #define S3C2410_CLKSLOW_UCLK_OFF        (1<<7)
  74 #define S3C2410_CLKSLOW_MPLL_OFF        (1<<5)
  75 #define S3C2410_CLKSLOW_SLOW            (1<<4)
  76 #define S3C2410_CLKSLOW_SLOWVAL(x)      (x)
  77 #define S3C2410_CLKSLOW_GET_SLOWVAL(x)  ((x) & 7)
  78
  79 #ifndef __ASSEMBLY__
  80
  81 #include <asm/div64.h>
  82
  83 static inline unsigned int
  84 s3c2410_get_pll(unsigned int pllval, unsigned int baseclk)
  85 {
  86         unsigned int mdiv, pdiv, sdiv;
  87         uint64_t fvco;
  88
  89         mdiv = pllval >> S3C2410_PLLCON_MDIVSHIFT;
  90         pdiv = pllval >> S3C2410_PLLCON_PDIVSHIFT;
  91         sdiv = pllval >> S3C2410_PLLCON_SDIVSHIFT;
  92
  93         mdiv &= S3C2410_PLLCON_MDIVMASK;
  94         pdiv &= S3C2410_PLLCON_PDIVMASK;
  95         sdiv &= S3C2410_PLLCON_SDIVMASK;
  96
  97         fvco = (uint64_t)baseclk * (mdiv + 8);
  98         do_div(fvco, (pdiv + 2) << sdiv);
  99
 100         return (unsigned int)fvco;
 101 }
 102
 103 #endif /* __ASSEMBLY__ */
 104
 105 #if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
 106
 107 /* extra registers */
 108 #define S3C2440_CAMDIVN     S3C2410_CLKREG(0x18)
 109
 110 #define S3C2440_CLKCON_CAMERA        (1<<19)
 111 #define S3C2440_CLKCON_AC97          (1<<20)
 112
 113 #define S3C2440_CLKDIVN_PDIVN        (1<<0)
 114 #define S3C2440_CLKDIVN_HDIVN_MASK   (3<<1)
 115 #define S3C2440_CLKDIVN_HDIVN_1      (0<<1)
 116 #define S3C2440_CLKDIVN_HDIVN_2      (1<<1)
 117 #define S3C2440_CLKDIVN_HDIVN_4_8    (2<<1)
 118 #define S3C2440_CLKDIVN_HDIVN_3_6    (3<<1)
 119 #define S3C2440_CLKDIVN_UCLK         (1<<3)
 120
 121 #define S3C2440_CAMDIVN_CAMCLK_MASK  (0xf<<0)
 122 #define S3C2440_CAMDIVN_CAMCLK_SEL   (1<<4)
 123 #define S3C2440_CAMDIVN_HCLK3_HALF   (1<<8)
 124 #define S3C2440_CAMDIVN_HCLK4_HALF   (1<<9)
 125 #define S3C2440_CAMDIVN_DVSEN        (1<<12)
 126
 127 #define S3C2442_CAMDIVN_CAMCLK_DIV3  (1<<5)
 128
 129 #endif /* CONFIG_CPU_S3C2440 or CONFIG_CPU_S3C2442 */
 130
 131 #if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
 132
 133 #define S3C2412_OSCSET          S3C2410_CLKREG(0x18)
 134 #define S3C2412_CLKSRC          S3C2410_CLKREG(0x1C)
 135
 136 #define S3C2412_PLLCON_OFF              (1<<20)
 137
 138 #define S3C2412_CLKDIVN_PDIVN           (1<<2)
 139 #define S3C2412_CLKDIVN_HDIVN_MASK      (3<<0)
 140 #define S3C2421_CLKDIVN_ARMDIVN         (1<<3)
 141 #define S3C2412_CLKDIVN_DVSEN           (1<<4)
 142 #define S3C2412_CLKDIVN_HALFHCLK        (1<<5)
 143 #define S3C2412_CLKDIVN_USB48DIV        (1<<6)
 144 #define S3C2412_CLKDIVN_UARTDIV_MASK    (15<<8)
 145 #define S3C2412_CLKDIVN_UARTDIV_SHIFT   (8)
 146 #define S3C2412_CLKDIVN_I2SDIV_MASK     (15<<12)
 147 #define S3C2412_CLKDIVN_I2SDIV_SHIFT    (12)
 148 #define S3C2412_CLKDIVN_CAMDIV_MASK     (15<<16)
 149 #define S3C2412_CLKDIVN_CAMDIV_SHIFT    (16)
 150
 151 #define S3C2412_CLKCON_WDT              (1<<28)
 152 #define S3C2412_CLKCON_SPI              (1<<27)
 153 #define S3C2412_CLKCON_IIS              (1<<26)
 154 #define S3C2412_CLKCON_IIC              (1<<25)
 155 #define S3C2412_CLKCON_ADC              (1<<24)
 156 #define S3C2412_CLKCON_RTC              (1<<23)
 157 #define S3C2412_CLKCON_GPIO             (1<<22)
 158 #define S3C2412_CLKCON_UART2            (1<<21)
 159 #define S3C2412_CLKCON_UART1            (1<<20)
 160 #define S3C2412_CLKCON_UART0            (1<<19)
 161 #define S3C2412_CLKCON_SDI              (1<<18)
 162 #define S3C2412_CLKCON_PWMT             (1<<17)
 163 #define S3C2412_CLKCON_USBD             (1<<16)
 164 #define S3C2412_CLKCON_CAMCLK           (1<<15)
 165 #define S3C2412_CLKCON_UARTCLK          (1<<14)
 166 /* missing 13 */
 167 #define S3C2412_CLKCON_USB_HOST48       (1<<12)
 168 #define S3C2412_CLKCON_USB_DEV48        (1<<11)
 169 #define S3C2412_CLKCON_HCLKdiv2         (1<<10)
 170 #define S3C2412_CLKCON_HCLKx2           (1<<9)
 171 #define S3C2412_CLKCON_SDRAM            (1<<8)
 172 /* missing 7 */
 173 #define S3C2412_CLKCON_USBH             S3C2410_CLKCON_USBH
 174 #define S3C2412_CLKCON_LCDC             S3C2410_CLKCON_LCDC
 175 #define S3C2412_CLKCON_NAND             S3C2410_CLKCON_NAND
 176 #define S3C2412_CLKCON_DMA3             (1<<3)
 177 #define S3C2412_CLKCON_DMA2             (1<<2)
 178 #define S3C2412_CLKCON_DMA1             (1<<1)
 179 #define S3C2412_CLKCON_DMA0             (1<<0)
 180
 181 /* clock sourec controls */
 182
 183 #define S3C2412_CLKSRC_EXTCLKDIV_MASK           (7 << 0)
 184 #define S3C2412_CLKSRC_EXTCLKDIV_SHIFT          (0)
 185 #define S3C2412_CLKSRC_MDIVCLK_EXTCLKDIV        (1<<3)
 186 #define S3C2412_CLKSRC_MSYSCLK_MPLL             (1<<4)
 187 #define S3C2412_CLKSRC_USYSCLK_UPLL             (1<<5)
 188 #define S3C2412_CLKSRC_UARTCLK_MPLL             (1<<8)
 189 #define S3C2412_CLKSRC_I2SCLK_MPLL              (1<<9)
 190 #define S3C2412_CLKSRC_USBCLK_HCLK              (1<<10)
 191 #define S3C2412_CLKSRC_CAMCLK_HCLK              (1<<11)
 192
 193 #endif /* CONFIG_CPU_S3C2412 | CONFIG_CPU_S3C2413 */
 194
 195 #endif /* __ASM_ARM_REGS_CLOCK */