Name

uart_parse_earlycon — Parse earlycon options

Synopsis

int uart_parse_earlycon (char * p,
 unsigned char * iotype,
 unsigned long * addr,
 char ** options);
 

Arguments

p

ptr to 2nd field (ie., just beyond '<name>,')

iotype

ptr for decoded iotype (out)

addr

ptr for decoded mapbase/iobase (out)

options

ptr for <options> field; NULL if not present (out)

Description

Decodes earlycon kernel command line parameters of the form earlycon=<name>,io|mmio|mmio32,<addr>,<options> console=<name>,io|mmio|mmio32,<addr>,<options>

The optional form earlycon=<name>,0x<addr>,<options> console=<name>,0x<addr>,<options> is also accepted; the returned iotype will be UPIO_MEM.

Returns 0 on success or -EINVAL on failure