You mean something like that?
static struct map_desc poodle_io_desc[] __initdata = {
/* virtual physical length domain r w c b */
{ 0xf1000000, 0x10000000, 0x01000000, DOMAIN_IO, 0, 1, 0, 0 }, /* LOCOMO */
{ 0xf2000000, 0x10800000, 0x00001000, DOMAIN_IO, 0, 1, 0, 0 }, /* SCOOP */
{ 0xf2100000, 0x0C000000, 0x00001000, DOMAIN_IO, 0, 1, 0, 0 }, /* Nand Flash */
{ 0xef000000, 0x00000000, 0x00800000, DOMAIN_IO, 1, 1, 1, 0 }, /* Boot Flash */
LAST_DESC
};
Read linux-embedix/arch/arm/mach-pxa/poodle.c for more.