> From: Lada Trimasova <Lada.Trimasova at synopsys.com> > Sent: Thursday, March 10, 2016 8:57 PM > And for example, let's see what happens when we use "readl" in function "serial8250_early_in" in driver/tty/serial/8250. Is your DTS entry includes for serial node following entries: reg-io-width = <4> native-endian; if answer is yes you should expect (in case of big endian compilation) that: port->iotype would be equal to UPIO_MEM32BE, hence no readl() use for this case. This is how it works for me here, it sounds like your case is similar. Regards, Noam
