patch-2.4.22 linux-2.4.22/arch/mips/au1000/pb1500/pci_ops.c

• Lines: 242
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/arch/mips/au1000/pb1500/pci_ops.c
• Orig date: 2002-11-28 15:53:09.000000000 -0800

diff -urN linux-2.4.21/arch/mips/au1000/pb1500/pci_ops.c linux-2.4.22/arch/mips/au1000/pb1500/pci_ops.c
@@ -1,241 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- *	Pb1500 specific pci support.
- *
- * Copyright 2001,2002 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *         	ppopov@mvista.com or source@mvista.com
- *
- *  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/config.h>
-
-#ifdef CONFIG_PCI
-
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/au1000.h>
-#include <asm/pb1500.h>
-#include <asm/pci_channel.h>
-
-#define PCI_ACCESS_READ  0
-#define PCI_ACCESS_WRITE 1
-
-#undef DEBUG
-#ifdef 	DEBUG
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)
-#endif
-
-/* TBD */
-static struct resource pci_io_resource = {
-	"pci IO space",
-	Au1500_PCI_IO_START,
-	Au1500_PCI_IO_END,
-	IORESOURCE_IO
-};
-
-static struct resource pci_mem_resource = {
-	"pci memory space",
-	Au1500_PCI_MEM_START,
-	Au1500_PCI_MEM_END,
-	IORESOURCE_MEM
-};
-
-extern struct pci_ops pb1500_pci_ops;
-
-struct pci_channel mips_pci_channels[] = {
-	{&pb1500_pci_ops, &pci_io_resource, &pci_mem_resource, (10<<3),(16<<3)},
-	{(struct pci_ops *) NULL, (struct resource *) NULL,
-	 (struct resource *) NULL, (int) NULL, (int) NULL}
-};
-
-static unsigned long cfg_addr;
-static int config_access(unsigned char access_type, struct pci_dev *dev,
-			 unsigned char where, u32 * data)
-{
-	unsigned char bus = dev->bus->number;
-	unsigned int dev_fn = dev->devfn;
-	unsigned int device, function;
-	unsigned long config, status;
-	static int first = 1;
-
-	/*
- 	 * 7:3 = slot
- 	 * 2:0 = function
-	 */
-
-	if (bus != 0) {
-		*data = 0xffffffff;
-		return -1;
-	}
-
-	if (first) {
-		first = 0;
-		cfg_addr = ioremap(Au1500_EXT_CFG, 0x10000000);
-		if (!cfg_addr)
-			printk (KERN_ERR "PCI unable to ioremap cfg space\n");
-	}
-
-	device = (dev_fn >> 3) & 0x1f;
-	function = dev_fn & 0x7;
-
-#if 1
-	//if (!cfg_addr || (device < 10) || (device > 16)) {
-	if (!cfg_addr || (device > 16)) {
-		*data = 0xffffffff;
-		return -1;
-	}
-#endif
-
-	au_writel(((0x2000 << 16) | (au_readl(Au1500_PCI_STATCMD) & 0xffff)),
-			Au1500_PCI_STATCMD);
-	//au_writel(au_readl(Au1500_PCI_CFG) & ~PCI_ERROR, Au1500_PCI_CFG);
-	au_sync_udelay(1);
-
-	/* setup the lower 31 bits of the 36 bit address */
-	config = cfg_addr |
-		((1<<device)<<11) | (function << 8) | (where & ~0x3);
-
-#if 0
-	printk("cfg access: config %x, dev_fn %x, device %x function %x\n",
-			config, dev_fn, device, function);
-#endif
-
-	if (access_type == PCI_ACCESS_WRITE) {
-		au_writel(*data, config);
-	} else {
-		*data = au_readl(config);
-	}
-	au_sync_udelay(1);
-
-	DBG("config_access: %d bus %d device %d at %x *data %x, conf %x\n",
-			access_type, bus, device, where, *data, config);
-
-	/* check master abort */
-	status = au_readl(Au1500_PCI_STATCMD);
-	if (status & (1<<29)) {
-		*data = 0xffffffff;
-		return -1;
-	} else if ((status >> 28) & 0xf) {
-		DBG("PCI ERR detected: status %x\n", status);
-		*data = 0xffffffff;
-		return -1;
-	}
-	else {
-		return PCIBIOS_SUCCESSFUL;
-	}
-}
-
-
-static int read_config_byte(struct pci_dev *dev, int where, u8 * val)
-{
-	u32 data;
-	int ret;
-
-	ret = config_access(PCI_ACCESS_READ, dev, where, &data);
-        if (where & 1) data >>= 8;
-        if (where & 2) data >>= 16;
-        *val = data & 0xff;
-	return ret;
-}
-
-
-static int read_config_word(struct pci_dev *dev, int where, u16 * val)
-{
-	u32 data;
-	int ret;
-
-	ret = config_access(PCI_ACCESS_READ, dev, where, &data);
-        if (where & 2) data >>= 16;
-        *val = data & 0xffff;
-	return ret;
-}
-
-static int read_config_dword(struct pci_dev *dev, int where, u32 * val)
-{
-	int ret;
-
-	ret = config_access(PCI_ACCESS_READ, dev, where, val);
-	return ret;
-}
-
-
-static int write_config_byte(struct pci_dev *dev, int where, u8 val)
-{
-	u32 data = 0;
-
-	if (config_access(PCI_ACCESS_READ, dev, where, &data))
-		return -1;
-
-	data = (data & ~(0xff << ((where & 3) << 3))) |
-	       (val << ((where & 3) << 3));
-
-	if (config_access(PCI_ACCESS_WRITE, dev, where, &data))
-		return -1;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int write_config_word(struct pci_dev *dev, int where, u16 val)
-{
-        u32 data = 0;
-
-	if (where & 1)
-		return PCIBIOS_BAD_REGISTER_NUMBER;
-
-        if (config_access(PCI_ACCESS_READ, dev, where, &data))
-	       return -1;
-
-	data = (data & ~(0xffff << ((where & 3) << 3))) |
-	       (val << ((where & 3) << 3));
-
-	if (config_access(PCI_ACCESS_WRITE, dev, where, &data))
-	       return -1;
-
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int write_config_dword(struct pci_dev *dev, int where, u32 val)
-{
-	if (where & 3)
-		return PCIBIOS_BAD_REGISTER_NUMBER;
-
-	if (config_access(PCI_ACCESS_WRITE, dev, where, &val))
-	       return -1;
-
-	return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops pb1500_pci_ops = {
-	read_config_byte,
-        read_config_word,
-	read_config_dword,
-	write_config_byte,
-	write_config_word,
-	write_config_dword
-};
-#endif /* CONFIG_PCI */