Arnd, On Wed, 27 Mar 2013 19:11:14 +0100, Thomas Petazzoni wrote: > > I assume it works with PIO, but does the SATA card use the I/O > > space registers, or just memory space? > > Both cards only use memory space. I have a quick and dirty patch for > the e1000e driver that makes it read/write one particular register from > the I/O space to test that it works, but I haven't checked this yet on > Kirkwood. I don't expect much troubles, but who knows. Just to let you know, I've tested the e1000e with my small changes that does one I/O access, and it seems to work properly. At least, I read from the register the value I should be reading (and therefore writing works, because the I/O space of the e1000e essentially has two registers: one address register, and one data register, so you must write one address in the address register before being able to read something from the data register). Best regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
