/* * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com * * Developed for DENX Software Engineering GmbH * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */#include <common.h>/* There are two tests for dsPIC currently implemented: * 1. dsPIC ready test. Done in board_early_init_f(). Only result verified here. * 2. dsPIC POST result test.  This test gets dsPIC POST codes and version. */#include <post.h>#include <i2c.h>#include <asm/io.h>DECLARE_GLOBAL_DATA_PTR;#define DSPIC_POST_ERROR_REG	0x800#define DSPIC_SYS_ERROR_REG	0x802#define DSPIC_VERSION_REG	0x804#if CONFIG_POST & CONFIG_SYS_POST_BSPEC1/* Verify that dsPIC ready test done early at hw init passed ok */int dspic_init_post_test(int flags){	if (in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) & CONFIG_SYS_DSPIC_TEST_MASK) {		post_log("dsPIC init test failed\n");		return 1;	}	return 0;}#endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC1 */#if CONFIG_POST & CONFIG_SYS_POST_BSPEC2/* Read a register from the dsPIC. */int dspic_read(ushort reg){	uchar buf[2];	if (i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2))		return -1;	return (uint)((buf[0] << 8) | buf[1]);}/* Verify error codes regs, display version */int dspic_post_test(int flags){	int data;	int ret = 0;	post_log("\n");	data = dspic_read(DSPIC_VERSION_REG);	if (data == -1) {		post_log("dsPIC : failed read version\n");		ret = 1;	} else {		post_log("dsPIC version: %u.%u\n",			(data >> 8) & 0xFF, data & 0xFF);	}	data = dspic_read(DSPIC_POST_ERROR_REG);	if (data != 0) ret = 1;	if (data == -1) {		post_log("dsPIC : failed read POST code\n");	} else {		post_log("dsPIC POST code 0x%04X\n", data);	}	data = dspic_read(DSPIC_SYS_ERROR_REG);	if (data == -1) {		post_log("dsPIC : failed read system error\n");		ret = 1;	} else {		post_log("dsPIC SYS-ERROR code: 0x%04X\n", data);	}	return ret;}#endif /* CONFIG_POST & CONFIG_SYS_POST_BSPEC2 */