I'm working with a couple FreeScale platforms and having trouble getting the RTC which is connected via I2C to work. I had this working fine in the old arch/ppc tree, but it's failing in the arch/powerpc world.
Here's the problem - the RTC driver gets initialized *before* the I2C bus and as far as I can tell, the RTC 'probe' function never gets executed. I've peppered the device/bus/driver init code with some extra prints to see the flow: *** ds1307_init.548 *** i2c_register_driver.662 *** i2c_register_driver.674 *** i2c_register_driver.682 *** driver_register.228 (rtc-ds1307) - called from c01963cc *** bus_add_driver.657 - bus: 'i2c', driver: 'rtc-ds1307' *** i2c_register_driver.689 i2c /dev entries driver *** i2c_register_driver.662 *** i2c_register_driver.674 *** i2c_register_driver.682 *** driver_register.228 (dev_driver) - called from c01963cc *** bus_add_driver.657 - bus: 'i2c', driver: 'dev_driver' *** i2c_register_driver.689 *** platform_driver_register.456 (fsl-i2c) - called from c02bbc54 *** driver_register.228 (fsl-i2c) - called from c0162f88 *** bus_add_driver.657 - bus: 'platform', driver: 'fsl-i2c' *** fsl_i2c_probe.361 *** fsl_i2c_probe.361 There is a similar print in the 'ds1307_probe()' function, but as you can see, it's never called :-( Can someone explain what drives the order of these init functions? I can see that it's based on the __XXXinit sections, but I don't see why the RTC functions happen before the FSL-I2C ones. From my system map: c02bb738 t rtc_hctosys c02bb87c t rtc_init c02bb918 T rtc_dev_init c02bb97c T rtc_sysfs_init c02bb98c t ds1307_init c02bb9d0 T i2c_register_board_info c02bbaf4 t i2c_init c02bbb80 t i2c_dev_init c02bbc3c t fsl_i2c_init Any ideas how I can affect this ordering? or should it matter and there's something else going on? Thanks for any pointers -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev