how to make BSC9132 I2C2 controller enabled by default instead of usb

[manjanagoudapat]

Hi,

BSC9132 I2C2 controller is not enabled by default in WUSDK BSP.

so i am running  below mentioned commands each time i boot the board, how can i make I2C2 controller enabled by default.

=> mm ff7e0068

ff7e0068: 00000000 ? 00000600

=> i2c mw 66 55 e0

=> i2c dev 1

Setting bus to 1

=> i2c probe

Valid chip addresses: 70 71 72

thanks and regards

patil

[yipingwang]

Hello Manjanagouda Patil,

I checked u-boot header file include/configs/BSC9132QDS.h of SDK 1.8, I2C2 is enabled, please refer to the following. If your source code is different from this, please modify the header file as the following.

#define CONFIG_SYS_I2C

#define CONFIG_SYS_I2C_FSL

#define CONFIG_SYS_FSL_I2C_SPEED        400800 /* I2C speed and slave address*/

#define CONFIG_SYS_FSL_I2C_SLAVE        0x7F

#define CONFIG_SYS_FSL_I2C2_SPEED       400800 /* I2C speed and slave address*/

#define CONFIG_SYS_FSL_I2C2_SLAVE       0x7F

#define CONFIG_SYS_FSL_I2C_OFFSET       0x3000

#define CONFIG_SYS_FSL_I2C2_OFFSET      0x3100

Thanks,

Yiping

[manjanagoudapat · Accepted solution]

hello Yiping Wang

how i can access the chips connected to the PCA9546APW, Is there any commands in u-boot command prompt or linux command prompt.

[manjanagoudapat]

thank you Yiping Wang

i am using wusdk1.6, i will check source code for the modification that you have suggested.

[lunminliang]

Hello patil,

I think you need to change in u-boot source.

Regeards

Lunmin

[manjanagoudapat]

thank you lunminliang ,

i will check it.