kernel-ark/arch/arm/plat-iop/setup.c
Rob Herring dd9bf78040 ARM: iop3xx: use fixed PCI i/o mapping
Move iop33x and iop32x PCI to fixed i/o mapping and remove io.h. This
changes the PCI bus addresses from the cpu address to 0 based. It appears
that there is translation h/w for this, but its untested.

Not sure what to do with io_offset. I think it should always be 0.
AFAICT, PCI setup is skipped if the ATU is already setup.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2012-07-26 09:10:04 -05:00

35 lines
950 B
C

/*
* arch/arm/plat-iop/setup.c
*
* Author: Nicolas Pitre <nico@fluxnic.net>
* Copyright (C) 2001 MontaVista Software, Inc.
* Copyright (C) 2004 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <asm/mach/map.h>
#include <asm/hardware/iop3xx.h>
/*
* Standard IO mapping for all IOP3xx based systems. Note that
* the IOP3xx OCCDR must be mapped uncached and unbuffered.
*/
static struct map_desc iop3xx_std_desc[] __initdata = {
{ /* mem mapped registers */
.virtual = IOP3XX_PERIPHERAL_VIRT_BASE,
.pfn = __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
.length = IOP3XX_PERIPHERAL_SIZE,
.type = MT_UNCACHED,
},
};
void __init iop3xx_map_io(void)
{
iotable_init(iop3xx_std_desc, ARRAY_SIZE(iop3xx_std_desc));
}