arch/mips/include/asm/mach-loongson32/regs-clk.h

   1 /*
   2  * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
   3  *
   4  * Loongson 1 Clock Register Definitions.
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #ifndef __ASM_MACH_LOONGSON32_REGS_CLK_H
  13 #define __ASM_MACH_LOONGSON32_REGS_CLK_H
  14
  15 #define LS1X_CLK_REG(x) \
  16                 ((void __iomem *)KSEG1ADDR(LS1X_CLK_BASE + (x)))
  17
  18 #define LS1X_CLK_PLL_FREQ               LS1X_CLK_REG(0x0)
  19 #define LS1X_CLK_PLL_DIV                LS1X_CLK_REG(0x4)
  20
  21 /* Clock PLL Divisor Register Bits */
  22 #define DIV_DC_EN                       (0x1 << 31)
  23 #define DIV_DC_RST                      (0x1 << 30)
  24 #define DIV_CPU_EN                      (0x1 << 25)
  25 #define DIV_CPU_RST                     (0x1 << 24)
  26 #define DIV_DDR_EN                      (0x1 << 19)
  27 #define DIV_DDR_RST                     (0x1 << 18)
  28 #define RST_DC_EN                       (0x1 << 5)
  29 #define RST_DC                          (0x1 << 4)
  30 #define RST_DDR_EN                      (0x1 << 3)
  31 #define RST_DDR                         (0x1 << 2)
  32 #define RST_CPU_EN                      (0x1 << 1)
  33 #define RST_CPU                         0x1
  34
  35 #define DIV_DC_SHIFT                    26
  36 #define DIV_CPU_SHIFT                   20
  37 #define DIV_DDR_SHIFT                   14
  38
  39 #define DIV_DC_WIDTH                    4
  40 #define DIV_CPU_WIDTH                   4
  41 #define DIV_DDR_WIDTH                   4
  42
  43 #define BYPASS_DC_SHIFT                 12
  44 #define BYPASS_DDR_SHIFT                10
  45 #define BYPASS_CPU_SHIFT                8
  46
  47 #define BYPASS_DC_WIDTH                 1
  48 #define BYPASS_DDR_WIDTH                1
  49 #define BYPASS_CPU_WIDTH                1
  50
  51 #endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */