Tested all 5 'buses', i2c probe enumerates device addresses on all but dev 4 (I2C4) [no devices on that bus on my Cardhu].
Note that this uses the extant tegra_i2c.c driver w/o modification.
Signed-off-by: Tom Warren twarren@nvidia.com --- include/configs/cardhu.h | 9 +++++++++ include/configs/tegra30-common.h | 3 +++ 2 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/include/configs/cardhu.h b/include/configs/cardhu.h index 471df6e..aa725ba 100644 --- a/include/configs/cardhu.h +++ b/include/configs/cardhu.h @@ -38,6 +38,15 @@ #define CONFIG_MACH_TYPE MACH_TYPE_CARDHU
#define CONFIG_BOARD_EARLY_INIT_F + +/* I2C */ +#define CONFIG_TEGRA_I2C +#define CONFIG_SYS_I2C_INIT_BOARD +#define CONFIG_I2C_MULTI_BUS +#define CONFIG_SYS_MAX_I2C_BUS TEGRA_I2C_NUM_CONTROLLERS +#define CONFIG_SYS_I2C_SPEED 100000 +#define CONFIG_CMD_I2C + #define CONFIG_ENV_IS_NOWHERE
#include "tegra-common-post.h" diff --git a/include/configs/tegra30-common.h b/include/configs/tegra30-common.h index 282caec..04517e1 100644 --- a/include/configs/tegra30-common.h +++ b/include/configs/tegra30-common.h @@ -83,4 +83,7 @@
#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/tegra30/u-boot-spl.lds"
+/* Total I2C ports on Tegra30 */ +#define TEGRA_I2C_NUM_CONTROLLERS 5 + #endif /* _TEGRA30_COMMON_H_ */