Hello i am using a Picozed Board with Petalinux 2016.3.
I followed the PS I2C tutorial and would now want to use this example to access the pmod max44000 i2c device from u-boot and petalinux.
What should i change to make this possible?
so far i get this error under u-boot
U-Boot-PetaLinux> i2c bus
Bus -1: i2c@e0004000
U-Boot-PetaLinux> i2c probe
No I2C bus selected
U-Boot-PetaLinux> i2c bus 0
Invalid bus 0: err=-19
U-Boot-PetaLinux> i2c probe
No I2C bus selected
U-Boot-PetaLinux> i2c dev 0
Setting bus to 0
Failure changing bus number (-19)
And under linux an
i2cdetect -r 0
shows me no active i2c devices and even the pmod max44000 pins don't even get an i2c signal.
For linux i need to somehow adjust the device tree. But how?
And how can i fix my u-boot problem???
