I2C on MPC8272...
From: Kuffner Cory <hidden>
Date: 2006-09-08 17:13:16
Hello all, Does anyone know how to use the I2C module for the MPC8272?? We are attempting to enable it by following code written for a bareboard system and converting it into a kernel module (2.6.11 Kernel), but nothing happens on our SDA and SCL data lines. The parameter ram is kind of tricky to set up, but I beleive we have everything pointing where it should. To write to the IMM we are using the ioremap function with ioread and iowrite, we can write to the ports so I don't think there is an issue writing to memory, but I'm new to embedded linux. Has anyone ever used the I2C controller in one of freescale's chips or just a good understanding of I2C modules in embedded linux?? I think all the chips have the same I2C interface....so it should be the same set up for MPC8250, 8255, 8260, etc. Thanks, Cory Kuffner