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| author | Stefan Roese <sr@denx.de> | 2007-02-20 10:51:26 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-02-20 10:51:26 +0100 |
| commit | 0dc018ece13effc689e47479ea9ebf1c98a507f5 (patch) | |
| tree | ee428909979fcf779234fed26f38028cdce40562 /common/cmd_dtt.c | |
| parent | 4037ed3b63923cfcec27f784a89057c3cbabcedb (diff) | |
| download | u-boot-imx-0dc018ece13effc689e47479ea9ebf1c98a507f5.zip u-boot-imx-0dc018ece13effc689e47479ea9ebf1c98a507f5.tar.gz u-boot-imx-0dc018ece13effc689e47479ea9ebf1c98a507f5.tar.bz2 | |
[PATCH] I2C: Add support for multiple I2C busses for RTC & DTT
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>
Diffstat (limited to 'common/cmd_dtt.c')
| -rw-r--r-- | common/cmd_dtt.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/common/cmd_dtt.c b/common/cmd_dtt.c index 9db64e9..4f7b049 100644 --- a/common/cmd_dtt.c +++ b/common/cmd_dtt.c @@ -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() */ |