1 files changed, 17 insertions, 15 deletions

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 219a4106480a..138bdd6393be 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -475,7 +475,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
                  &bus->busn_res);
 
         res = bus->resource[0];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_IO) {
                 /*
                  * The IO resource is allocated a range twice as large as it
@@ -489,7 +489,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
         }
 
         res = bus->resource[1];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_IO) {
                 dev_info(&bridge->dev, "  bridge window %pR\n", res);
                 pci_write_config_dword(bridge, PCI_CB_IO_BASE_1,
@@ -499,7 +499,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
         }
 
         res = bus->resource[2];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_MEM) {
                 dev_info(&bridge->dev, "  bridge window %pR\n", res);
                 pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0,
@@ -509,7 +509,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
         }
 
         res = bus->resource[3];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_MEM) {
                 dev_info(&bridge->dev, "  bridge window %pR\n", res);
                 pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1,
@@ -538,7 +538,8 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
         struct pci_bus_region region;
         unsigned long io_mask;
         u8 io_base_lo, io_limit_lo;
-        u32 l, io_upper16;
+        u16 l;
+        u32 io_upper16;
 
         io_mask = PCI_IO_RANGE_MASK;
         if (bridge->io_window_1k)
@@ -546,13 +547,12 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
 
         /* Set up the top and bottom of the PCI I/O segment for this bus. */
         res = bus->resource[0];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_IO) {
-                pci_read_config_dword(bridge, PCI_IO_BASE, &l);
-                l &= 0xffff0000;
+                pci_read_config_word(bridge, PCI_IO_BASE, &l);
                 io_base_lo = (region.start >> 8) & io_mask;
                 io_limit_lo = (region.end >> 8) & io_mask;
-                l |= ((u32) io_limit_lo << 8) | io_base_lo;
+                l = ((u16) io_limit_lo << 8) | io_base_lo;
                 /* Set up upper 16 bits of I/O base/limit. */
                 io_upper16 = (region.end & 0xffff0000) | (region.start >> 16);
                 dev_info(&bridge->dev, "  bridge window %pR\n", res);
@@ -564,7 +564,7 @@ static void pci_setup_bridge_io(struct pci_bus *bus)
         /* Temporarily disable the I/O range before updating PCI_IO_BASE. */
         pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff);
         /* Update lower 16 bits of I/O base/limit. */
-        pci_write_config_dword(bridge, PCI_IO_BASE, l);
+        pci_write_config_word(bridge, PCI_IO_BASE, l);
         /* Update upper 16 bits of I/O base/limit. */
         pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, io_upper16);
 }
@@ -578,7 +578,7 @@ static void pci_setup_bridge_mmio(struct pci_bus *bus)
 
         /* Set up the top and bottom of the PCI Memory segment for this bus. */
         res = bus->resource[1];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_MEM) {
                 l = (region.start >> 16) & 0xfff0;
                 l |= region.end & 0xfff00000;
@@ -604,7 +604,7 @@ static void pci_setup_bridge_mmio_pref(struct pci_bus *bus)
         /* Set up PREF base/limit. */
         bu = lu = 0;
         res = bus->resource[2];
-        pcibios_resource_to_bus(bridge, &region, res);
+        pcibios_resource_to_bus(bridge->bus, &region, res);
         if (res->flags & IORESOURCE_PREFETCH) {
                 l = (region.start >> 16) & 0xfff0;
                 l |= region.end & 0xfff00000;
@@ -665,21 +665,23 @@ static void pci_bridge_check_ranges(struct pci_bus *bus)
 
         pci_read_config_word(bridge, PCI_IO_BASE, &io);
         if (!io) {
-                pci_write_config_word(bridge, PCI_IO_BASE, 0xf0f0);
+                pci_write_config_word(bridge, PCI_IO_BASE, 0xe0f0);
                 pci_read_config_word(bridge, PCI_IO_BASE, &io);
                 pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
         }
         if (io)
                 b_res[0].flags |= IORESOURCE_IO;
+
         /*  DECchip 21050 pass 2 errata: the bridge may miss an address
             disconnect boundary by one PCI data phase.
             Workaround: do not use prefetching on this device. */
         if (bridge->vendor == PCI_VENDOR_ID_DEC && bridge->device == 0x0001)
                 return;
+
         pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
         if (!pmem) {
                 pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE,
-                                               0xfff0fff0);
+                                               0xffe0fff0);
                 pci_read_config_dword(bridge, PCI_PREF_MEMORY_BASE, &pmem);
                 pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, 0x0);
         }
@@ -1422,7 +1424,7 @@ static int iov_resources_unassigned(struct pci_dev *dev, void *data)
                 if (!r->flags)
                         continue;
 
-                pcibios_resource_to_bus(dev, &region, r);
+                pcibios_resource_to_bus(dev->bus, &region, r);
                 if (!region.start) {
                         *unassigned = true;
                         return 1; /* return early from pci_walk_bus() */