mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/*
|
|
* (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 */
|