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

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
   4  *
   5  * Loongson 1 Clock Register Definitions.
   6  */
   7
   8 #ifndef __ASM_MACH_LOONGSON32_REGS_CLK_H
   9 #define __ASM_MACH_LOONGSON32_REGS_CLK_H
  10
  11 #define LS1X_CLK_REG(x) \
  12                 ((void __iomem *)KSEG1ADDR(LS1X_CLK_BASE + (x)))
  13
  14 #define LS1X_CLK_PLL_FREQ               LS1X_CLK_REG(0x0)
  15 #define LS1X_CLK_PLL_DIV                LS1X_CLK_REG(0x4)
  16
  17 #if defined(CONFIG_LOONGSON1_LS1B)
  18 /* Clock PLL Divisor Register Bits */
  19 #define DIV_DC_EN                       BIT(31)
  20 #define DIV_DC_RST                      BIT(30)
  21 #define DIV_CPU_EN                      BIT(25)
  22 #define DIV_CPU_RST                     BIT(24)
  23 #define DIV_DDR_EN                      BIT(19)
  24 #define DIV_DDR_RST                     BIT(18)
  25 #define RST_DC_EN                       BIT(5)
  26 #define RST_DC                          BIT(4)
  27 #define RST_DDR_EN                      BIT(3)
  28 #define RST_DDR                         BIT(2)
  29 #define RST_CPU_EN                      BIT(1)
  30 #define RST_CPU                         BIT(0)
  31
  32 #define DIV_DC_SHIFT                    26
  33 #define DIV_CPU_SHIFT                   20
  34 #define DIV_DDR_SHIFT                   14
  35
  36 #define DIV_DC_WIDTH                    4
  37 #define DIV_CPU_WIDTH                   4
  38 #define DIV_DDR_WIDTH                   4
  39
  40 #define BYPASS_DC_SHIFT                 12
  41 #define BYPASS_DDR_SHIFT                10
  42 #define BYPASS_CPU_SHIFT                8
  43
  44 #define BYPASS_DC_WIDTH                 1
  45 #define BYPASS_DDR_WIDTH                1
  46 #define BYPASS_CPU_WIDTH                1
  47
  48 #elif defined(CONFIG_LOONGSON1_LS1C)
  49 /* PLL/SDRAM Frequency configuration register Bits */
  50 #define PLL_VALID                       BIT(31)
  51 #define FRAC_N                          GENMASK(23, 16)
  52 #define RST_TIME                        GENMASK(3, 2)
  53 #define SDRAM_DIV                       GENMASK(1, 0)
  54
  55 /* CPU/CAMERA/DC Frequency configuration register Bits */
  56 #define DIV_DC_EN                       BIT(31)
  57 #define DIV_DC                          GENMASK(30, 24)
  58 #define DIV_CAM_EN                      BIT(23)
  59 #define DIV_CAM                         GENMASK(22, 16)
  60 #define DIV_CPU_EN                      BIT(15)
  61 #define DIV_CPU                         GENMASK(14, 8)
  62 #define DIV_DC_SEL_EN                   BIT(5)
  63 #define DIV_DC_SEL                      BIT(4)
  64 #define DIV_CAM_SEL_EN                  BIT(3)
  65 #define DIV_CAM_SEL                     BIT(2)
  66 #define DIV_CPU_SEL_EN                  BIT(1)
  67 #define DIV_CPU_SEL                     BIT(0)
  68
  69 #define DIV_DC_SHIFT                    24
  70 #define DIV_CAM_SHIFT                   16
  71 #define DIV_CPU_SHIFT                   8
  72 #define DIV_DDR_SHIFT                   0
  73
  74 #define DIV_DC_WIDTH                    7
  75 #define DIV_CAM_WIDTH                   7
  76 #define DIV_CPU_WIDTH                   7
  77 #define DIV_DDR_WIDTH                   2
  78
  79 #endif
  80
  81 #endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */