Mike (mwester) wrote: > I'll second that sentiment. Frankly, my impression of the 50633 and > Linux is that while the chip might be excellent hardware-wise, it has a > serious "impedance mismatch" when it comes to interfacing with the Linux > kernel.
Hmm, not really. Once we can actually do something with it, it's a nice chip. The main problem is that its power-up configuration cannot be changed according to application needs. So the impedance mismatch is not between the PMU and Linux but between high-volume production (where you can afford to ask NXP for a custom-designed configuration) and the volumes we can commit to. Oh, Andy, you once suggested for a hypothetical MPU-assisted PMU design to put a FET after regulators that could potentially be problematic, such as AUTOOUTx -> IO_3V3. A more comprehensive solution would place the FET between SYSx and VB_SYS, with C1767 on the VB_SYS side, and the MPU on the SYSx side. This way, we could control all rails with just one FET. Damn, I really want that MPU. - Werner _______________________________________________ devel mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/devel
