mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 01:31:44 +00:00
ebb4c65869
Mikael Pettersson reported: The 2.6.28-rc kernels fail to detect PCI device 0000:00:01.0 (the first ethernet port) on my Thecus n2100 XScale box. There is however still a strange "ghost" device that gets partially detected in 2.6.28-rc2 vanilla. The IOP321 manual says: The user designates the memory region containing the OCCDR as non-cacheable and non-bufferable from the IntelR XScaleTM core. This guarantees that all load/stores to the OCCDR are only of DWORD quantities. Ensure that the OCCDR is so mapped. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
|
|
* arch/arm/plat-iop/setup.c
|
|
*
|
|
* Author: Nicolas Pitre <nico@cam.org>
|
|
* 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,
|
|
}, { /* PCI IO space */
|
|
.virtual = IOP3XX_PCI_LOWER_IO_VA,
|
|
.pfn = __phys_to_pfn(IOP3XX_PCI_LOWER_IO_PA),
|
|
.length = IOP3XX_PCI_IO_WINDOW_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
void __init iop3xx_map_io(void)
|
|
{
|
|
iotable_init(iop3xx_std_desc, ARRAY_SIZE(iop3xx_std_desc));
|
|
}
|