Hello Sascha,
I actually looked in the u-boot-v2.git in the i2c branch, because I wanted to look how things in v2 work, specially I2C Subsystem ... and I have a first question:
- In ppc area, we start running from flash and have to relocate code. Before setting up RAM, we maybe have to read SPD EEprom over I2C for this. How could this work in v2? I see in drivers/i2c/i2c-core.c in i2c_register_adapter () an INIT_LIST_HEAD(&adap->clients);
This could not work, when running from Flash, because we have no usable RAM ... So I looked how this device approach globally works, and found in lib/driver.c in register_device() also:
107 108 list_add_tail(&new_device->list, &device_list); 109 INIT_LIST_HEAD(&new_device->children); 110
so would this device_driver approach in v2 actually only work, if running from RAM? What if we need the devices earlier?
Maybe I overlooked something obvious?
bye Heiko