mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
6ab3d5624e
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
|
|
* arch/mips/vr41xx/nec-cmbvr4133/init.c
|
|
*
|
|
* PROM library initialisation code for NEC CMB-VR4133 board.
|
|
*
|
|
* Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
|
|
* Jun Sun <jsun@mvista.com, or source@mvista.com> and
|
|
* Alex Sapkov <asapkov@ru.mvista.com>
|
|
*
|
|
* 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*
|
|
* Support for NEC-CMBVR4133 in 2.6
|
|
* Manish Lachwani (mlachwani@mvista.com)
|
|
*/
|
|
|
|
#ifdef CONFIG_ROCKHOPPER
|
|
#include <asm/io.h>
|
|
#include <linux/pci.h>
|
|
|
|
#define PCICONFDREG 0xaf000c14
|
|
#define PCICONFAREG 0xaf000c18
|
|
|
|
void disable_pcnet(void)
|
|
{
|
|
u32 data;
|
|
|
|
/*
|
|
* Workaround for the bug in PMON on VR4133. PMON leaves
|
|
* AMD PCNet controller (on Rockhopper) initialized and running in
|
|
* bus master mode. We have do disable it before doing any
|
|
* further initialization. Or we get problems with PCI bus 2
|
|
* and random lockups and crashes.
|
|
*/
|
|
|
|
writel((2 << 16) |
|
|
(PCI_DEVFN(1,0) << 8) |
|
|
(0 & 0xfc) |
|
|
1UL,
|
|
PCICONFAREG);
|
|
|
|
data = readl(PCICONFDREG);
|
|
|
|
writel((2 << 16) |
|
|
(PCI_DEVFN(1,0) << 8) |
|
|
(4 & 0xfc) |
|
|
1UL,
|
|
PCICONFAREG);
|
|
|
|
data = readl(PCICONFDREG);
|
|
|
|
writel((2 << 16) |
|
|
(PCI_DEVFN(1,0) << 8) |
|
|
(4 & 0xfc) |
|
|
1UL,
|
|
PCICONFAREG);
|
|
|
|
data &= ~4;
|
|
|
|
writel(data, PCICONFDREG);
|
|
}
|
|
#endif
|
|
|