LXR linux/arch/powerpc/include/asm/immap

   1/**
   2 * MPC86xx Internal Memory Map
   3 *
   4 * Authors: Jeff Brown
   5 *          Timur Tabi <timur@freescale.com>
   6 *
   7 * Copyright 2004,2007 Freescale Semiconductor, Inc
   8 *
   9 * This program is free software; you can redistribute  it and/or modify it
  10 * under  the terms of  the GNU General  Public License as published by the
  11 * Free Software Foundation;  either version 2 of the  License, or (at your
  12 * option) any later version.
  13 *
  14 * This header file defines structures for various 86xx SOC devices that are
  15 * used by multiple source files.
  16 */
  17
  18#ifndef __ASM_POWERPC_IMMAP_86XX_H__
  19#define __ASM_POWERPC_IMMAP_86XX_H__
  20#ifdef __KERNEL__
  21
  22/* Global Utility Registers */
  23struct ccsr_guts {
  24        __be32  porpllsr;       /* 0x.0000 - POR PLL Ratio Status Register */
  25        __be32  porbmsr;        /* 0x.0004 - POR Boot Mode Status Register */
  26        __be32  porimpscr;      /* 0x.0008 - POR I/O Impedance Status and Control Register */
  27        __be32  pordevsr;       /* 0x.000c - POR I/O Device Status Register */
  28        __be32  pordbgmsr;      /* 0x.0010 - POR Debug Mode Status Register */
  29        u8      res1[0x20 - 0x14];
  30        __be32  porcir;         /* 0x.0020 - POR Configuration Information Register */
  31        u8      res2[0x30 - 0x24];
  32        __be32  gpiocr;         /* 0x.0030 - GPIO Control Register */
  33        u8      res3[0x40 - 0x34];
  34        __be32  gpoutdr;        /* 0x.0040 - General-Purpose Output Data Register */
  35        u8      res4[0x50 - 0x44];
  36        __be32  gpindr;         /* 0x.0050 - General-Purpose Input Data Register */
  37        u8      res5[0x60 - 0x54];
  38        __be32  pmuxcr;         /* 0x.0060 - Alternate Function Signal Multiplex Control */
  39        u8      res6[0x70 - 0x64];
  40        __be32  devdisr;        /* 0x.0070 - Device Disable Control */
  41        __be32  devdisr2;       /* 0x.0074 - Device Disable Control 2 */
  42        u8      res7[0x80 - 0x78];
  43        __be32  powmgtcsr;      /* 0x.0080 - Power Management Status and Control Register */
  44        u8      res8[0x90 - 0x84];
  45        __be32  mcpsumr;        /* 0x.0090 - Machine Check Summary Register */
  46        __be32  rstrscr;        /* 0x.0094 - Reset Request Status and Control Register */
  47        u8      res9[0xA0 - 0x98];
  48        __be32  pvr;            /* 0x.00a0 - Processor Version Register */
  49        __be32  svr;            /* 0x.00a4 - System Version Register */
  50        u8      res10[0xB0 - 0xA8];
  51        __be32  rstcr;          /* 0x.00b0 - Reset Control Register */
  52        u8      res11[0xC0 - 0xB4];
  53        __be32  elbcvselcr;     /* 0x.00c0 - eLBC Voltage Select Ctrl Reg */
  54        u8      res12[0x800 - 0xC4];
  55        __be32  clkdvdr;        /* 0x.0800 - Clock Divide Register */
  56        u8      res13[0x900 - 0x804];
  57        __be32  ircr;           /* 0x.0900 - Infrared Control Register */
  58        u8      res14[0x908 - 0x904];
  59        __be32  dmacr;          /* 0x.0908 - DMA Control Register */
  60        u8      res15[0x914 - 0x90C];
  61        __be32  elbccr;         /* 0x.0914 - eLBC Control Register */
  62        u8      res16[0xB20 - 0x918];
  63        __be32  ddr1clkdr;      /* 0x.0b20 - DDR1 Clock Disable Register */
  64        __be32  ddr2clkdr;      /* 0x.0b24 - DDR2 Clock Disable Register */
  65        __be32  ddrclkdr;       /* 0x.0b28 - DDR Clock Disable Register */
  66        u8      res17[0xE00 - 0xB2C];
  67        __be32  clkocr;         /* 0x.0e00 - Clock Out Select Register */
  68        u8      res18[0xE10 - 0xE04];
  69        __be32  ddrdllcr;       /* 0x.0e10 - DDR DLL Control Register */
  70        u8      res19[0xE20 - 0xE14];
  71        __be32  lbcdllcr;       /* 0x.0e20 - LBC DLL Control Register */
  72        u8      res20[0xF04 - 0xE24];
  73        __be32  srds1cr0;       /* 0x.0f04 - SerDes1 Control Register 0 */
  74        __be32  srds1cr1;       /* 0x.0f08 - SerDes1 Control Register 0 */
  75        u8      res21[0xF40 - 0xF0C];
  76        __be32  srds2cr0;       /* 0x.0f40 - SerDes1 Control Register 0 */
  77        __be32  srds2cr1;       /* 0x.0f44 - SerDes1 Control Register 0 */
  78} __attribute__ ((packed));
  79
  80#define CCSR_GUTS_DMACR_DEV_SSI 0       /* DMA controller/channel set to SSI */
  81#define CCSR_GUTS_DMACR_DEV_IR  1       /* DMA controller/channel set to IR */
  82
  83/*
  84 * Set the DMACR register in the GUTS
  85 *
  86 * The DMACR register determines the source of initiated transfers for each
  87 * channel on each DMA controller.  Rather than have a bunch of repetitive
  88 * macros for the bit patterns, we just have a function that calculates
  89 * them.
  90 *
  91 * guts: Pointer to GUTS structure
  92 * co: The DMA controller (0 or 1)
  93 * ch: The channel on the DMA controller (0, 1, 2, or 3)
  94 * device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
  95 */
  96static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
  97        unsigned int co, unsigned int ch, unsigned int device)
  98{
  99        unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
 100
 101        clrsetbits_be32(&guts->dmacr, 3 << shift, device << shift);
 102}
 103
 104#define CCSR_GUTS_PMUXCR_LDPSEL         0x00010000
 105#define CCSR_GUTS_PMUXCR_SSI1_MASK      0x0000C000      /* Bitmask for SSI1 */
 106#define CCSR_GUTS_PMUXCR_SSI1_LA        0x00000000      /* Latched address */
 107#define CCSR_GUTS_PMUXCR_SSI1_HI        0x00004000      /* High impedance */
 108#define CCSR_GUTS_PMUXCR_SSI1_SSI       0x00008000      /* Used for SSI1 */
 109#define CCSR_GUTS_PMUXCR_SSI2_MASK      0x00003000      /* Bitmask for SSI2 */
 110#define CCSR_GUTS_PMUXCR_SSI2_LA        0x00000000      /* Latched address */
 111#define CCSR_GUTS_PMUXCR_SSI2_HI        0x00001000      /* High impedance */
 112#define CCSR_GUTS_PMUXCR_SSI2_SSI       0x00002000      /* Used for SSI2 */
 113#define CCSR_GUTS_PMUXCR_LA_22_25_LA    0x00000000      /* Latched Address */
 114#define CCSR_GUTS_PMUXCR_LA_22_25_HI    0x00000400      /* High impedance */
 115#define CCSR_GUTS_PMUXCR_DBGDRV         0x00000200      /* Signals not driven */
 116#define CCSR_GUTS_PMUXCR_DMA2_0         0x00000008
 117#define CCSR_GUTS_PMUXCR_DMA2_3         0x00000004
 118#define CCSR_GUTS_PMUXCR_DMA1_0         0x00000002
 119#define CCSR_GUTS_PMUXCR_DMA1_3         0x00000001
 120
 121/*
 122 * Set the DMA external control bits in the GUTS
 123 *
 124 * The DMA external control bits in the PMUXCR are only meaningful for
 125 * channels 0 and 3.  Any other channels are ignored.
 126 *
 127 * guts: Pointer to GUTS structure
 128 * co: The DMA controller (0 or 1)
 129 * ch: The channel on the DMA controller (0, 1, 2, or 3)
 130 * value: the new value for the bit (0 or 1)
 131 */
 132static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts,
 133        unsigned int co, unsigned int ch, unsigned int value)
 134{
 135        if ((ch == 0) || (ch == 3)) {
 136                unsigned int shift = 2 * (co + 1) - (ch & 1) - 1;
 137
 138                clrsetbits_be32(&guts->pmuxcr, 1 << shift, value << shift);
 139        }
 140}
 141
 142#define CCSR_GUTS_CLKDVDR_PXCKEN        0x80000000
 143#define CCSR_GUTS_CLKDVDR_SSICKEN       0x20000000
 144#define CCSR_GUTS_CLKDVDR_PXCKINV       0x10000000
 145#define CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT 25
 146#define CCSR_GUTS_CLKDVDR_PXCKDLY_MASK  0x06000000
 147#define CCSR_GUTS_CLKDVDR_PXCKDLY(x) \
 148        (((x) & 3) << CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT)
 149#define CCSR_GUTS_CLKDVDR_PXCLK_SHIFT   16
 150#define CCSR_GUTS_CLKDVDR_PXCLK_MASK    0x001F0000
 151#define CCSR_GUTS_CLKDVDR_PXCLK(x) (((x) & 31) << CCSR_GUTS_CLKDVDR_PXCLK_SHIFT)
 152#define CCSR_GUTS_CLKDVDR_SSICLK_MASK   0x000000FF
 153#define CCSR_GUTS_CLKDVDR_SSICLK(x) ((x) & CCSR_GUTS_CLKDVDR_SSICLK_MASK)
 154
 155#endif /* __ASM_POWERPC_IMMAP_86XX_H__ */
 156#endif /* __KERNEL__ */
 157