diff options
Diffstat (limited to 'arch/mips/pci/fixup-ddb5477.c')
| -rw-r--r-- | arch/mips/pci/fixup-ddb5477.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/mips/pci/fixup-ddb5477.c b/arch/mips/pci/fixup-ddb5477.c new file mode 100644 index 00000000000..6abdc88bab1 --- /dev/null +++ b/arch/mips/pci/fixup-ddb5477.c @@ -0,0 +1,78 @@ +/* + * + * BRIEF MODULE DESCRIPTION + * Board specific pci fixups. + * + * Copyright 2001, 2002, 2003 MontaVista Software Inc. + * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> + +static void ddb5477_fixup(struct pci_dev *dev) +{ + u8 old; + + printk(KERN_NOTICE "Enabling ALI M1533/35 PS2 keyboard/mouse.\n"); + pci_read_config_byte(dev, 0x41, &old); + pci_write_config_byte(dev, 0x41, old | 0xd0); +} + +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, + ddb5477_fixup); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1535, + ddb5477_fixup); + +/* + * Fixup baseboard AMD chip so that tx does not underflow. + * bcr_18 |= 0x0800 + * This sets NOUFLO bit which makes tx not start until whole pkt + * is fetched to the chip. + */ +#define PCNET32_WIO_RDP 0x10 +#define PCNET32_WIO_RAP 0x12 +#define PCNET32_WIO_RESET 0x14 +#define PCNET32_WIO_BDP 0x16 + +static void ddb5477_amd_lance_fixup(struct pci_dev *dev) +{ + unsigned long ioaddr; + u16 temp; + + ioaddr = pci_resource_start(dev, 0); + + inw(ioaddr + PCNET32_WIO_RESET); /* reset chip */ + + /* bcr_18 |= 0x0800 */ + outw(18, ioaddr + PCNET32_WIO_RAP); + temp = inw(ioaddr + PCNET32_WIO_BDP); + temp |= 0x0800; + outw(18, ioaddr + PCNET32_WIO_RAP); + outw(temp, ioaddr + PCNET32_WIO_BDP); +} + +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE, + ddb5477_amd_lance_fixup); |