LXR uboot/board/freescale/common/ngpixis.h

   1/**
   2 * Copyright 2010-2011 Freescale Semiconductor
   3 * Author: Timur Tabi <timur@freescale.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 *
   7 * This file provides support for the ngPIXIS, a board-specific FPGA used on
   8 * some Freescale reference boards.
   9 */
  10
  11/* ngPIXIS register set. Hopefully, this won't change too much over time.
  12 * Feel free to add board-specific #ifdefs where necessary.
  13 */
  14typedef struct ngpixis {
  15        u8 id;
  16        u8 arch;
  17        u8 scver;
  18        u8 csr;
  19        u8 rst;
  20        u8 serclk;
  21        u8 aux;
  22        u8 spd;
  23        u8 brdcfg0;
  24        u8 brdcfg1;     /* On some boards, this register is called 'dma' */
  25        u8 addr;
  26        u8 brdcfg2;
  27        u8 gpiodir;
  28        u8 data;
  29        u8 led;
  30        u8 tag;
  31        u8 vctl;
  32        u8 vstat;
  33        u8 vcfgen0;
  34        u8 res4;
  35        u8 ocmcsr;
  36        u8 ocmmsg;
  37        u8 gmdbg;
  38        u8 res5[2];
  39        u8 sclk[3];
  40        u8 dclk[3];
  41        u8 watch;
  42        struct {
  43                u8 sw;
  44                u8 en;
  45        } s[9];         /* s[0]..s[7] is SW1..SW8, and s[8] is SW11 */
  46} __attribute__ ((packed)) ngpixis_t;
  47
  48/* Pointer to the PIXIS register set */
  49#define pixis ((ngpixis_t *)PIXIS_BASE)
  50
  51/* The PIXIS SW register that corresponds to board switch X, where x >= 1 */
  52#define PIXIS_SW(x)             (pixis->s[(x) - 1].sw)
  53
  54/* The PIXIS EN register that corresponds to board switch X, where x >= 1 */
  55#define PIXIS_EN(x)             (pixis->s[(x) - 1].en)
  56
  57u8 pixis_read(unsigned int reg);
  58void pixis_write(unsigned int reg, u8 value);
  59
  60#define PIXIS_READ(reg) pixis_read(offsetof(ngpixis_t, reg))
  61#define PIXIS_WRITE(reg, value) pixis_write(offsetof(ngpixis_t, reg), value)
  62