15a469608STimur Tabi /** 2aa8d3fb8STimur Tabi * Copyright 2010-2011 Freescale Semiconductor 35a469608STimur Tabi * Author: Timur Tabi <timur@freescale.com> 45a469608STimur Tabi * 55a469608STimur Tabi * This program is free software; you can redistribute it and/or modify it 65a469608STimur Tabi * under the terms of the GNU General Public License as published by the Free 75a469608STimur Tabi * Software Foundation; either version 2 of the License, or (at your option) 85a469608STimur Tabi * any later version. 95a469608STimur Tabi * 105a469608STimur Tabi * This file provides support for the ngPIXIS, a board-specific FPGA used on 115a469608STimur Tabi * some Freescale reference boards. 125a469608STimur Tabi */ 135a469608STimur Tabi 145a469608STimur Tabi /* ngPIXIS register set. Hopefully, this won't change too much over time. 155a469608STimur Tabi * Feel free to add board-specific #ifdefs where necessary. 165a469608STimur Tabi */ 175a469608STimur Tabi typedef struct ngpixis { 185a469608STimur Tabi u8 id; 195a469608STimur Tabi u8 arch; 205a469608STimur Tabi u8 scver; 215a469608STimur Tabi u8 csr; 225a469608STimur Tabi u8 rst; 23*e02aea61SKumar Gala u8 serclk; 245a469608STimur Tabi u8 aux; 255a469608STimur Tabi u8 spd; 265a469608STimur Tabi u8 brdcfg0; 275f4d3682STimur Tabi u8 brdcfg1; /* On some boards, this register is called 'dma' */ 285a469608STimur Tabi u8 addr; 29*e02aea61SKumar Gala u8 brdcfg2; 30*e02aea61SKumar Gala u8 gpiodir; 315a469608STimur Tabi u8 data; 325a469608STimur Tabi u8 led; 33*e02aea61SKumar Gala u8 tag; 345a469608STimur Tabi u8 vctl; 355a469608STimur Tabi u8 vstat; 365a469608STimur Tabi u8 vcfgen0; 375a469608STimur Tabi u8 res4; 385a469608STimur Tabi u8 ocmcsr; 395a469608STimur Tabi u8 ocmmsg; 405a469608STimur Tabi u8 gmdbg; 415a469608STimur Tabi u8 res5[2]; 425a469608STimur Tabi u8 sclk[3]; 435a469608STimur Tabi u8 dclk[3]; 445a469608STimur Tabi u8 watch; 455a469608STimur Tabi struct { 465a469608STimur Tabi u8 sw; 475a469608STimur Tabi u8 en; 485a469608STimur Tabi } s[8]; 49b4a60e52SKumar Gala } __attribute__ ((packed)) ngpixis_t; 505a469608STimur Tabi 515a469608STimur Tabi /* Pointer to the PIXIS register set */ 525a469608STimur Tabi #define pixis ((ngpixis_t *)PIXIS_BASE) 535a469608STimur Tabi 545a469608STimur Tabi /* The PIXIS SW register that corresponds to board switch X, where x >= 1 */ 555a469608STimur Tabi #define PIXIS_SW(x) (pixis->s[(x) - 1].sw) 565a469608STimur Tabi 575a469608STimur Tabi /* The PIXIS EN register that corresponds to board switch X, where x >= 1 */ 585a469608STimur Tabi #define PIXIS_EN(x) (pixis->s[(x) - 1].en) 59aa8d3fb8STimur Tabi 60aa8d3fb8STimur Tabi u8 pixis_read(unsigned int reg); 61aa8d3fb8STimur Tabi void pixis_write(unsigned int reg, u8 value); 62aa8d3fb8STimur Tabi 63aa8d3fb8STimur Tabi #define PIXIS_READ(reg) pixis_read(offsetof(ngpixis_t, reg)) 64aa8d3fb8STimur Tabi #define PIXIS_WRITE(reg, value) pixis_write(offsetof(ngpixis_t, reg), value) 65