PowerPC iotable_init equivalent?

[Eddie Dawydiuk <eddie@embeddedarm.com>]

Hello,

In the past I've worked with ARM architectures where I could setup virtual / 
physical address mappings so I don't have to ioremap then pass around pointers. 
Does PowerPC have an equivalent abstraction? If not whats the recommended approach?

That is, is there a better approach to the following...

volatile static unsigned char *my_reg = NULL;

static inline void read_func() {

	if (!my_reg)
         	my_reg = (unsigned char *)
			ioremap(REG_PHYS_BASE, REG_SIZE);
//do something with the reg
}


static inline void write_func() {

	if (!my_reg)
         	my_reg = (unsigned char *)
			ioremap(REG_PHYS_BASE, REG_SIZE);
//do something with the reg
}

-- 
Best Regards,
________________________________________________________________
  Eddie Dawydiuk, Technologic Systems | voice:  (480) 837-5200
  16525 East Laser Drive 	     | fax:    (480) 837-5300
  Fountain Hills, AZ 85268            | web: www.embeddedARM.com