Re: [U-Boot] mxc_i2c driver

On 01/14/2014 03:25 PM, Troy Kisky wrote:

On 1/14/2014 2:26 PM, York Sun wrote:

...

Troy,

I am trying to use mxc_i2c driver with multiple buses. I didn't figure out how the bases are set. Can you shed some light on this?

Thanks,

York

see board/boundary/nitrogen6x/nitrogen6x.c

It calls setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); which is in arch/arm/imx-common/i2c-mxv7.c

This file has an array of base addresses

static void * const i2c_bases[] = { (void *)I2C1_BASE_ADDR, (void *)I2C2_BASE_ADDR, #ifdef I2C3_BASE_ADDR (void *)I2C3_BASE_ADDR, #endif };

Great! Thanks.

York