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[PATCH] I2C: Add support for multiple I2C busses for RTC & DTT

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This patch switches to the desired I2C bus when the date/dtt
commands are called. This can be configured using the
CFG_RTC_BUS_NUM and/or CFG_DTT_BUS_NUM defines.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2007-02-20 10:51:26 +01:00
parent 4037ed3b63
commit 0dc018ece1
4 changed files with 40 additions and 9 deletions
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12
common/cmd_dtt.c
View file

@ -28,19 +28,27 @@
#if (CONFIG_COMMANDS & CFG_CMD_DTT)
#include <dtt.h>
#include <i2c.h>
int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i;
unsigned char sensors[] = CONFIG_DTT_SENSORS;
int old_bus;
/* switch to correct I2C bus */
old_bus = I2C_GET_BUS();
I2C_SET_BUS(CFG_DTT_BUS_NUM);
/*
* Loop through sensors, read
* temperature, and output it.
*/
for (i = 0; i < sizeof (sensors); i++) {
for (i = 0; i < sizeof (sensors); i++)
printf ("DTT%d: %i C\n", i + 1, dtt_get_temp (sensors[i]));
}
/* switch back to original I2C bus */
I2C_SET_BUS(old_bus);
return 0;
} /* do_dtt() */