56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#ifdef CONFIG_POST
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/*
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* I2C test
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*
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* For verifying the I2C bus, a full I2C bus scanning is performed.
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* If any I2C device is found, the test is considered as passed,
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* otherwise failed.
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*/
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#include <post.h>
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#include <i2c.h>
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#if CONFIG_POST & CFG_POST_I2C
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int i2c_post_test (int flags)
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{
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unsigned int i;
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unsigned int chips = 0;
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for (i = 0; i < 128; i++) {
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if (i2c_probe (i) == 0)
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chips++;
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}
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return chips > 0 ? 0 : -1;
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}
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#endif /* CONFIG_POST & CFG_POST_I2C */
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#endif /* CONFIG_POST */
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