mpc5121: pdm360ng: add coprocessor POST

Adds coprocessor communication POST code

Signed-off-by: Anatolij Gustschin <agust@denx.de>
This commit is contained in:
Anatolij Gustschin 2010-04-24 19:27:11 +02:00 committed by Wolfgang Denk
parent 2ebdb9a9d7
commit 29fd7ceb3c
5 changed files with 145 additions and 0 deletions

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@ -445,6 +445,11 @@
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
#ifdef CONFIG_SERIAL_MULTI
/* POST support */
#define CONFIG_POST (CONFIG_SYS_POST_COPROC)
#endif
/*
* Environment Configuration
*/

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@ -124,6 +124,7 @@ extern int post_hotkeys_pressed(void);
#define CONFIG_SYS_POST_BSPEC4 0x00080000
#define CONFIG_SYS_POST_BSPEC5 0x00100000
#define CONFIG_SYS_POST_CODEC 0x00200000
#define CONFIG_SYS_POST_COPROC 0x00400000
#endif /* CONFIG_POST */

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@ -0,0 +1,29 @@
#
# (C) Copyright 2010 DENX Software Engineering
# Anatolij Gustschin, agust@denx.de.
#
# 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 $(OBJTREE)/include/autoconf.mk
LIB = libpostpdm360ng.a
COBJS-$(CONFIG_HAS_POST) += coproc_com.o
include $(TOPDIR)/post/rules.mk

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@ -0,0 +1,97 @@
/*
* (C) Copyright 2010 DENX Software Engineering,
* Anatolij Gustschin, agust@denx.de.
*
* 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
*/
/*
* Co-Processor communication POST
*/
#include <common.h>
#include <post.h>
#include <serial.h>
#if defined(CONFIG_SERIAL_MULTI)
/*
* Actually the termination sequence of the coprocessor
* commands is "\r\n" (CR LF), but here we use a side effect of
* the putc() routine of the serial driver which checks for LF
* and sends CR before sending LF. Therefore the termination
* sequence in the command below is only "\n".
* "alive" string is the coprocessor response for ping command
* and not a command, therefore it is terminated with "\r\n".
*/
char alive[] = "$AL;38\r\n";
char ping[] = "$PI;2C\n";
int coprocessor_post_test(int flags)
{
struct stdio_dev *cop_port;
int ret;
char buf[10];
/* Test IO Coprocessor communication */
cop_port = open_port(4, CONFIG_SYS_PDM360NG_COPROC_BAUDRATE);
if (!cop_port)
return -1;
write_port(cop_port, ping);
udelay(CONFIG_SYS_PDM360NG_COPROC_READ_DELAY);
memset(buf, 0, sizeof(buf));
ret = read_port(cop_port, buf, sizeof(buf));
close_port(4);
if (ret <= 0) {
post_log("Error: Can't read IO Coprocessor port.\n");
return -1;
}
if (strcmp(buf, alive)) {
post_log("Error: IO-Cop. resp.: %s\n", buf);
return -1;
}
/* Test WD Coprocessor communication */
cop_port = open_port(1, CONFIG_SYS_PDM360NG_COPROC_BAUDRATE);
if (!cop_port) {
post_log("Error: Can't open WD Coprocessor port.\n");
return -1;
}
write_port(cop_port, ping);
udelay(CONFIG_SYS_PDM360NG_COPROC_READ_DELAY);
memset(buf, 0, sizeof(buf));
ret = read_port(cop_port, buf, sizeof(buf));
close_port(1);
if (ret <= 0) {
post_log("Error: Can't read WD Coprocessor port.\n");
return -1;
}
if (strcmp(buf, alive)) {
post_log("Error: WD-Cop. resp.: %s\n", buf);
return -1;
}
return 0;
}
#endif /* CONFIG_SERIAL_MULTI */

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@ -53,6 +53,7 @@ extern int gdc_post_test (int flags);
extern int fpga_post_test (int flags);
extern int lwmon5_watchdog_post_test(int flags);
extern int sysmon1_post_test(int flags);
extern int coprocessor_post_test(int flags);
extern int sysmon_init_f (void);
@ -286,6 +287,18 @@ struct post_test post_list[] =
#if CONFIG_POST & CONFIG_SYS_POST_BSPEC5
CONFIG_POST_BSPEC5,
#endif
#if CONFIG_POST & CONFIG_SYS_POST_COPROC
{
"Coprocessors communication test",
"coproc_com",
"This test checks communication with coprocessors.",
POST_RAM | POST_ALWAYS | POST_CRITICAL,
&coprocessor_post_test,
NULL,
NULL,
CONFIG_SYS_POST_COPROC
}
#endif
};
unsigned int post_list_size = sizeof (post_list) / sizeof (struct post_test);