include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h

   1 /* linux/include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h
   2  *
   3  * Copyright (c) 2007 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *      http://armlinux.simtec.co.uk/
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * S3C2443 clock register definitions
  12 */
  13
  14 #ifndef __ASM_ARM_REGS_S3C2443_CLOCK
  15 #define __ASM_ARM_REGS_S3C2443_CLOCK
  16
  17 #define S3C2443_CLKREG(x)               ((x) + S3C24XX_VA_CLKPWR)
  18
  19 #define S3C2443_PLLCON_MDIVSHIFT        16
  20 #define S3C2443_PLLCON_PDIVSHIFT        8
  21 #define S3C2443_PLLCON_SDIVSHIFT        0
  22 #define S3C2443_PLLCON_MDIVMASK         ((1<<(1+(23-16)))-1)
  23 #define S3C2443_PLLCON_PDIVMASK         ((1<<(1+(9-8)))-1)
  24 #define S3C2443_PLLCON_SDIVMASK         (3)
  25
  26 #define S3C2443_MPLLCON                 S3C2443_CLKREG(0x10)
  27 #define S3C2443_EPLLCON                 S3C2443_CLKREG(0x18)
  28 #define S3C2443_CLKSRC                  S3C2443_CLKREG(0x20)
  29 #define S3C2443_CLKDIV0                 S3C2443_CLKREG(0x24)
  30 #define S3C2443_CLKDIV1                 S3C2443_CLKREG(0x28)
  31 #define S3C2443_HCLKCON                 S3C2443_CLKREG(0x30)
  32 #define S3C2443_PCLKCON                 S3C2443_CLKREG(0x34)
  33 #define S3C2443_SCLKCON                 S3C2443_CLKREG(0x38)
  34 #define S3C2443_PWRMODE                 S3C2443_CLKREG(0x40)
  35 #define S3C2443_SWRST                   S3C2443_CLKREG(0x44)
  36 #define S3C2443_BUSPRI0                 S3C2443_CLKREG(0x50)
  37 #define S3C2443_SYSID                   S3C2443_CLKREG(0x5C)
  38 #define S3C2443_PWRCFG                  S3C2443_CLKREG(0x60)
  39 #define S3C2443_RSTCON                  S3C2443_CLKREG(0x64)
  40
  41 #define S3C2443_SWRST_RESET             (0x533c2443)
  42
  43 #define S3C2443_PLLCON_OFF              (1<<24)
  44
  45 #define S3C2443_CLKSRC_I2S_EXT          (1<<14)
  46 #define S3C2443_CLKSRC_I2S_EPLLDIV      (0<<14)
  47 #define S3C2443_CLKSRC_I2S_EPLLREF      (2<<14)
  48 #define S3C2443_CLKSRC_I2S_EPLLREF3     (3<<14)
  49 #define S3C2443_CLKSRC_I2S_MASK         (3<<14)
  50
  51 #define S3C2443_CLKSRC_EPLLREF_XTAL     (2<<8)
  52 #define S3C2443_CLKSRC_EPLLREF_EXTCLK   (3<<8)
  53 #define S3C2443_CLKSRC_EPLLREF_MPLLREF  (0<<8)
  54 #define S3C2443_CLKSRC_EPLLREF_MPLLREF2 (1<<8)
  55 #define S3C2443_CLKSRC_EPLLREF_MASK     (3<<8)
  56
  57 #define S3C2443_CLKSRC_ESYSCLK_EPLL     (1<<6)
  58 #define S3C2443_CLKSRC_MSYSCLK_MPLL     (1<<4)
  59 #define S3C2443_CLKSRC_EXTCLK_DIV       (1<<3)
  60
  61 #define S3C2443_CLKDIV0_DVS             (1<<13)
  62 #define S3C2443_CLKDIV0_HALF_HCLK       (1<<3)
  63 #define S3C2443_CLKDIV0_HALF_PCLK       (1<<2)
  64
  65 #define S3C2443_CLKDIV0_HCLKDIV_MASK    (3<<0)
  66
  67 #define S3C2443_CLKDIV0_EXTDIV_MASK     (3<<6)
  68 #define S3C2443_CLKDIV0_EXTDIV_SHIFT    (6)
  69
  70 #define S3C2443_CLKDIV0_PREDIV_MASK     (3<<4)
  71 #define S3C2443_CLKDIV0_PREDIV_SHIFT    (4)
  72
  73 #define S3C2443_CLKDIV0_ARMDIV_MASK     (15<<9)
  74 #define S3C2443_CLKDIV0_ARMDIV_SHIFT    (9)
  75 #define S3C2443_CLKDIV0_ARMDIV_1        (0<<9)
  76 #define S3C2443_CLKDIV0_ARMDIV_2        (8<<9)
  77 #define S3C2443_CLKDIV0_ARMDIV_3        (2<<9)
  78 #define S3C2443_CLKDIV0_ARMDIV_4        (9<<9)
  79 #define S3C2443_CLKDIV0_ARMDIV_6        (10<<9)
  80 #define S3C2443_CLKDIV0_ARMDIV_8        (11<<9)
  81 #define S3C2443_CLKDIV0_ARMDIV_12       (13<<9)
  82 #define S3C2443_CLKDIV0_ARMDIV_16       (15<<9)
  83
  84 /* S3C2443_CLKDIV1 */
  85
  86 #define S3C2443_CLKDIV1_CAMDIV_MASK     (15<<26)
  87 #define S3C2443_CLKDIV1_CAMDIV_SHIFT    (26)
  88
  89 #define S3C2443_CLKDIV1_HSSPIDIV_MASK   (3<<24)
  90 #define S3C2443_CLKDIV1_HSSPIDIV_SHIFT  (24)
  91
  92 #define S3C2443_CLKDIV1_DISPDIV_MASK    (0xff<<16)
  93 #define S3C2443_CLKDIV1_DISPDIV_SHIFT   (16)
  94
  95 #define S3C2443_CLKDIV1_I2SDIV_MASK     (15<<12)
  96 #define S3C2443_CLKDIV1_I2SDIV_SHIFT    (12)
  97
  98 #define S3C2443_CLKDIV1_UARTDIV_MASK    (15<<8)
  99 #define S3C2443_CLKDIV1_UARTDIV_SHIFT   (8)
 100
 101 #define S3C2443_CLKDIV1_HSMMCDIV_MASK   (3<<6)
 102 #define S3C2443_CLKDIV1_HSMMCDIV_SHIFT  (6)
 103
 104 #define S3C2443_CLKDIV1_USBHOSTDIV_MASK (3<<4)
 105 #define S3C2443_CLKDIV1_USBHOSTDIV_SHIFT (4)
 106
 107 #define S3C2443_CLKCON_NAND
 108
 109 #define S3C2443_HCLKCON_DMA0            (1<<0)
 110 #define S3C2443_HCLKCON_DMA1            (1<<1)
 111 #define S3C2443_HCLKCON_DMA2            (1<<2)
 112 #define S3C2443_HCLKCON_DMA3            (1<<3)
 113 #define S3C2443_HCLKCON_DMA4            (1<<4)
 114 #define S3C2443_HCLKCON_DMA5            (1<<5)
 115 #define S3C2443_HCLKCON_CAMIF           (1<<8)
 116 #define S3C2443_HCLKCON_DISP            (1<<9)
 117 #define S3C2443_HCLKCON_LCDC            (1<<10)
 118 #define S3C2443_HCLKCON_USBH            (1<<11)
 119 #define S3C2443_HCLKCON_USBD            (1<<12)
 120 #define S3C2443_HCLKCON_HSMMC           (1<<16)
 121 #define S3C2443_HCLKCON_CFC             (1<<17)
 122 #define S3C2443_HCLKCON_SSMC            (1<<18)
 123 #define S3C2443_HCLKCON_DRAMC           (1<<19)
 124
 125 #define S3C2443_PCLKCON_UART0           (1<<0)
 126 #define S3C2443_PCLKCON_UART1           (1<<1)
 127 #define S3C2443_PCLKCON_UART2           (1<<2)
 128 #define S3C2443_PCLKCON_UART3           (1<<3)
 129 #define S3C2443_PCLKCON_IIC             (1<<4)
 130 #define S3C2443_PCLKCON_SDI             (1<<5)
 131 #define S3C2443_PCLKCON_ADC             (1<<7)
 132 #define S3C2443_PCLKCON_AC97            (1<<8)
 133 #define S3C2443_PCLKCON_IIS             (1<<9)
 134 #define S3C2443_PCLKCON_PWMT            (1<<10)
 135 #define S3C2443_PCLKCON_WDT             (1<<11)
 136 #define S3C2443_PCLKCON_RTC             (1<<12)
 137 #define S3C2443_PCLKCON_GPIO            (1<<13)
 138 #define S3C2443_PCLKCON_SPI0            (1<<14)
 139 #define S3C2443_PCLKCON_SPI1            (1<<15)
 140
 141 #define S3C2443_SCLKCON_DDRCLK          (1<<16)
 142 #define S3C2443_SCLKCON_SSMCCLK         (1<<15)
 143 #define S3C2443_SCLKCON_HSSPICLK        (1<<14)
 144 #define S3C2443_SCLKCON_HSMMCCLK_EXT    (1<<13)
 145 #define S3C2443_SCLKCON_HSMMCCLK_EPLL   (1<<12)
 146 #define S3C2443_SCLKCON_CAMCLK          (1<<11)
 147 #define S3C2443_SCLKCON_DISPCLK         (1<<10)
 148 #define S3C2443_SCLKCON_I2SCLK          (1<<9)
 149 #define S3C2443_SCLKCON_UARTCLK         (1<<8)
 150 #define S3C2443_SCLKCON_USBHOST         (1<<1)
 151
 152 #include <asm/div64.h>
 153
 154 static inline unsigned int
 155 s3c2443_get_mpll(unsigned int pllval, unsigned int baseclk)
 156 {
 157         unsigned int mdiv, pdiv, sdiv;
 158         uint64_t fvco;
 159
 160         mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
 161         pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
 162         sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
 163
 164         mdiv &= S3C2443_PLLCON_MDIVMASK;
 165         pdiv &= S3C2443_PLLCON_PDIVMASK;
 166         sdiv &= S3C2443_PLLCON_SDIVMASK;
 167
 168         fvco = (uint64_t)baseclk * (2 * (mdiv + 8));
 169         do_div(fvco, pdiv << sdiv);
 170
 171         return (unsigned int)fvco;
 172 }
 173
 174 static inline unsigned int
 175 s3c2443_get_epll(unsigned int pllval, unsigned int baseclk)
 176 {
 177         unsigned int mdiv, pdiv, sdiv;
 178         uint64_t fvco;
 179
 180         mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
 181         pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
 182         sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
 183
 184         mdiv &= S3C2443_PLLCON_MDIVMASK;
 185         pdiv &= S3C2443_PLLCON_PDIVMASK;
 186         sdiv &= S3C2443_PLLCON_SDIVMASK;
 187
 188         fvco = (uint64_t)baseclk * (mdiv + 8);
 189         do_div(fvco, (pdiv + 2) << sdiv);
 190
 191         return (unsigned int)fvco;
 192 }
 193
 194 #endif /*  __ASM_ARM_REGS_S3C2443_CLOCK */
 195