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

   1 /* arch/arm/mach-s3c2410/include/mach/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_EPLLREF_XTAL     (2<<7)
  46 #define S3C2443_CLKSRC_EPLLREF_EXTCLK   (3<<7)
  47 #define S3C2443_CLKSRC_EPLLREF_MPLLREF  (0<<7)
  48 #define S3C2443_CLKSRC_EPLLREF_MPLLREF2 (1<<7)
  49 #define S3C2443_CLKSRC_EPLLREF_MASK     (3<<7)
  50
  51 #define S3C2443_CLKSRC_EXTCLK_DIV       (1<<3)
  52
  53 #define S3C2443_CLKDIV0_HALF_HCLK       (1<<3)
  54 #define S3C2443_CLKDIV0_HALF_PCLK       (1<<2)
  55
  56 #define S3C2443_CLKDIV0_HCLKDIV_MASK    (3<<0)
  57
  58 #define S3C2443_CLKDIV0_EXTDIV_MASK     (3<<6)
  59 #define S3C2443_CLKDIV0_EXTDIV_SHIFT    (6)
  60
  61 #define S3C2443_CLKDIV0_PREDIV_MASK     (3<<4)
  62 #define S3C2443_CLKDIV0_PREDIV_SHIFT    (4)
  63
  64 #define S3C2443_CLKDIV0_ARMDIV_MASK     (15<<9)
  65 #define S3C2443_CLKDIV0_ARMDIV_SHIFT    (9)
  66 #define S3C2443_CLKDIV0_ARMDIV_1        (0<<9)
  67 #define S3C2443_CLKDIV0_ARMDIV_2        (8<<9)
  68 #define S3C2443_CLKDIV0_ARMDIV_3        (2<<9)
  69 #define S3C2443_CLKDIV0_ARMDIV_4        (9<<9)
  70 #define S3C2443_CLKDIV0_ARMDIV_6        (10<<9)
  71 #define S3C2443_CLKDIV0_ARMDIV_8        (11<<9)
  72 #define S3C2443_CLKDIV0_ARMDIV_12       (13<<9)
  73 #define S3C2443_CLKDIV0_ARMDIV_16       (15<<9)
  74
  75 /* S3C2443_CLKDIV1 removed, only used in clock.c code */
  76
  77 #define S3C2443_CLKCON_NAND
  78
  79 #define S3C2443_HCLKCON_DMA0            (1<<0)
  80 #define S3C2443_HCLKCON_DMA1            (1<<1)
  81 #define S3C2443_HCLKCON_DMA2            (1<<2)
  82 #define S3C2443_HCLKCON_DMA3            (1<<3)
  83 #define S3C2443_HCLKCON_DMA4            (1<<4)
  84 #define S3C2443_HCLKCON_DMA5            (1<<5)
  85 #define S3C2443_HCLKCON_CAMIF           (1<<8)
  86 #define S3C2443_HCLKCON_LCDC            (1<<9)
  87 #define S3C2443_HCLKCON_USBH            (1<<11)
  88 #define S3C2443_HCLKCON_USBD            (1<<12)
  89 #define S3C2443_HCLKCON_HSMMC           (1<<16)
  90 #define S3C2443_HCLKCON_CFC             (1<<17)
  91 #define S3C2443_HCLKCON_SSMC            (1<<18)
  92 #define S3C2443_HCLKCON_DRAMC           (1<<19)
  93
  94 #define S3C2443_PCLKCON_UART0           (1<<0)
  95 #define S3C2443_PCLKCON_UART1           (1<<1)
  96 #define S3C2443_PCLKCON_UART2           (1<<2)
  97 #define S3C2443_PCLKCON_UART3           (1<<3)
  98 #define S3C2443_PCLKCON_IIC             (1<<4)
  99 #define S3C2443_PCLKCON_SDI             (1<<5)
 100 #define S3C2443_PCLKCON_ADC             (1<<7)
 101 #define S3C2443_PCLKCON_AC97            (1<<8)
 102 #define S3C2443_PCLKCON_IIS             (1<<9)
 103 #define S3C2443_PCLKCON_PWMT            (1<<10)
 104 #define S3C2443_PCLKCON_WDT             (1<<11)
 105 #define S3C2443_PCLKCON_RTC             (1<<12)
 106 #define S3C2443_PCLKCON_GPIO            (1<<13)
 107 #define S3C2443_PCLKCON_SPI0            (1<<14)
 108 #define S3C2443_PCLKCON_SPI1            (1<<15)
 109
 110 #define S3C2443_SCLKCON_DDRCLK          (1<<16)
 111 #define S3C2443_SCLKCON_SSMCCLK         (1<<15)
 112 #define S3C2443_SCLKCON_HSSPICLK        (1<<14)
 113 #define S3C2443_SCLKCON_HSMMCCLK_EXT    (1<<13)
 114 #define S3C2443_SCLKCON_HSMMCCLK_EPLL   (1<<12)
 115 #define S3C2443_SCLKCON_CAMCLK          (1<<11)
 116 #define S3C2443_SCLKCON_DISPCLK         (1<<10)
 117 #define S3C2443_SCLKCON_I2SCLK          (1<<9)
 118 #define S3C2443_SCLKCON_UARTCLK         (1<<8)
 119 #define S3C2443_SCLKCON_USBHOST         (1<<1)
 120
 121 #include <asm/div64.h>
 122
 123 static inline unsigned int
 124 s3c2443_get_mpll(unsigned int pllval, unsigned int baseclk)
 125 {
 126         unsigned int mdiv, pdiv, sdiv;
 127         uint64_t fvco;
 128
 129         mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
 130         pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
 131         sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
 132
 133         mdiv &= S3C2443_PLLCON_MDIVMASK;
 134         pdiv &= S3C2443_PLLCON_PDIVMASK;
 135         sdiv &= S3C2443_PLLCON_SDIVMASK;
 136
 137         fvco = (uint64_t)baseclk * (2 * (mdiv + 8));
 138         do_div(fvco, pdiv << sdiv);
 139
 140         return (unsigned int)fvco;
 141 }
 142
 143 static inline unsigned int
 144 s3c2443_get_epll(unsigned int pllval, unsigned int baseclk)
 145 {
 146         unsigned int mdiv, pdiv, sdiv;
 147         uint64_t fvco;
 148
 149         mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
 150         pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
 151         sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
 152
 153         mdiv &= S3C2443_PLLCON_MDIVMASK;
 154         pdiv &= S3C2443_PLLCON_PDIVMASK;
 155         sdiv &= S3C2443_PLLCON_SDIVMASK;
 156
 157         fvco = (uint64_t)baseclk * (mdiv + 8);
 158         do_div(fvco, (pdiv + 2) << sdiv);
 159
 160         return (unsigned int)fvco;
 161 }
 162
 163 #endif /*  __ASM_ARM_REGS_S3C2443_CLOCK */
 164