On Fri, Nov 8, 2019 at 7:03 AM Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> wrote: > > - if (*iprop) > - qe_port->port.uartclk = *iprop; > + if (val) > + qe_port->port.uartclk = val; > else { > /* > * Older versions of U-Boot do not initialize the brg-frequency > * property, so in this case we assume the BRG frequency is > * half the QE bus frequency. > */ This bug in older U-Boots is definitely PowerPC-specific, so could you change this so that it reports an error on ARM if brg-frequency is zero, and displays a warning on PowerPC?