sh: pci: Track io and mem_offset per-channel.

This implements a per-hose offset for I/O and mem resources.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/drivers/pci/pci-new.c

@@ -105,7 +105,7 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev,
 	struct pci_bus *bus)
 {
 	/* Update device resources.  */
-	struct pci_channel *chan = bus->sysdata;
+	struct pci_channel *hose = bus->sysdata;
 	unsigned long offset = 0;
 	int i;
 
@@ -115,9 +115,9 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev,
 		if (dev->resource[i].flags & IORESOURCE_PCI_FIXED)
 			continue;
 		if (dev->resource[i].flags & IORESOURCE_IO)
-			offset = chan->io_base;
+			offset = hose->io_offset;
 		else if (dev->resource[i].flags & IORESOURCE_MEM)
-			offset = 0;
+			offset = hose->mem_offset;
 
 		dev->resource[i].start += offset;
 		dev->resource[i].end += offset;
@@ -150,13 +150,13 @@ void __devinit __weak pcibios_fixup_bus(struct pci_bus *bus)
 void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
 			 struct resource *res)
 {
-	struct pci_channel *chan = dev->sysdata;
+	struct pci_channel *hose = dev->sysdata;
 	unsigned long offset = 0;
 
 	if (res->flags & IORESOURCE_IO)
-		offset = chan->io_base;
+		offset = hose->io_offset;
 	else if (res->flags & IORESOURCE_MEM)
-		offset = 0;
+		offset = hose->mem_offset;
 
 	region->start = res->start - offset;
 	region->end = res->end - offset;
@@ -166,13 +166,13 @@ void __devinit
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region)
 {
-	struct pci_channel *chan = dev->sysdata;
+	struct pci_channel *hose = dev->sysdata;
 	unsigned long offset = 0;
 
 	if (res->flags & IORESOURCE_IO)
-		offset = chan->io_base;
+		offset = hose->io_offset;
 	else if (res->flags & IORESOURCE_MEM)
-		offset = 0;
+		offset = hose->mem_offset;
 
 	res->start = region->start + offset;
 	res->end = region->end + offset;

arch/sh/drivers/pci/pci-sh7780.c

@@ -34,7 +34,9 @@ static struct resource sh7785_mem_resource = {
 static struct pci_channel sh7780_pci_controller = {
 	.pci_ops	= &sh4_pci_ops,
 	.mem_resource	= &sh7785_mem_resource,
+	.mem_offset	= 0x00000000,
 	.io_resource	= &sh7785_io_resource,
+	.io_offset	= 0x00000000,
 };
 
 static struct sh4_pci_address_map sh7780_pci_map = {

arch/sh/include/asm/pci.h

@@ -25,6 +25,9 @@ struct pci_channel {
 	struct resource		*io_resource;
 	struct resource		*mem_resource;
 
+	unsigned long		io_offset;
+	unsigned long		mem_offset;
+
 	int			first_devfn;
 	int			last_devfn;
 	int			enabled;