[PATCH] x86-64: remove remaining pc98 code

[linux-2.6-omap-h63xx.git] / arch / i386 / pci / fixup.c

diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index 908b410f4c931c1ac62e562d2828ccd68714600f..cde1170b01a1490e256ab2900cfef82f97787e0f 100644 (file)
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -74,52 +74,6 @@ static void __devinit  pci_fixup_ncr53c810(struct pci_dev *d)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810);
 
-static void __devinit pci_fixup_ide_bases(struct pci_dev *d)
-{
-       int i;
-
-       /*
-        * PCI IDE controllers use non-standard I/O port decoding, respect it.
-        */
-       if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
-               return;
-       DBG("PCI: IDE base address fixup for %s\n", pci_name(d));
-       for(i=0; i<4; i++) {
-               struct resource *r = &d->resource[i];
-               if ((r->start & ~0x80) == 0x374) {
-                       r->start |= 2;
-                       r->end = r->start;
-               }
-       }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-static void __devinit  pci_fixup_ide_trash(struct pci_dev *d)
-{
-       int i;
-
-       /*
-        * Runs the fixup only for the first IDE controller
-        * (Shai Fultheim - shai@ftcon.com)
-        */
-       static int called = 0;
-       if (called)
-               return;
-       called = 1;
-
-       /*
-        * There exist PCI IDE controllers which have utter garbage
-        * in first four base registers. Ignore that.
-        */
-       DBG("PCI: IDE base address trash cleared for %s\n", pci_name(d));
-       for(i=0; i<4; i++)
-               d->resource[i].start = d->resource[i].end = d->resource[i].flags = 0;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_11, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_9, pci_fixup_ide_trash);
-
 static void __devinit  pci_fixup_latency(struct pci_dev *d)
 {
        /*
@@ -342,6 +296,61 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,       PCI_DEVICE_ID_INTEL_MCH_PB1,    pcie_r
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_MCH_PC,     pcie_rootport_aspm_quirk );
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_MCH_PC1,    pcie_rootport_aspm_quirk );
 
+/*
+ * Fixup to mark boot BIOS video selected by BIOS before it changes
+ *
+ * From information provided by "Jon Smirl" <jonsmirl@gmail.com>
+ *
+ * The standard boot ROM sequence for an x86 machine uses the BIOS
+ * to select an initial video card for boot display. This boot video
+ * card will have it's BIOS copied to C0000 in system RAM.
+ * IORESOURCE_ROM_SHADOW is used to associate the boot video
+ * card with this copy. On laptops this copy has to be used since
+ * the main ROM may be compressed or combined with another image.
+ * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW
+ * is marked here since the boot video device will be the only enabled
+ * video device at this point.
+ */
+
+static void __devinit pci_fixup_video(struct pci_dev *pdev)
+{
+       struct pci_dev *bridge;
+       struct pci_bus *bus;
+       u16 config;
+
+       if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+               return;
+
+       /* Is VGA routed to us? */
+       bus = pdev->bus;
+       while (bus) {
+               bridge = bus->self;
+
+               /*
+                * From information provided by
+                * "David Miller" <davem@davemloft.net>
+                * The bridge control register is valid for PCI header
+                * type BRIDGE, or CARDBUS. Host to PCI controllers use
+                * PCI header type NORMAL.
+                */
+               if (bridge
+                   &&((bridge->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+                      ||(bridge->hdr_type == PCI_HEADER_TYPE_CARDBUS))) {
+                       pci_read_config_word(bridge, PCI_BRIDGE_CONTROL,
+                                               &config);
+                       if (!(config & PCI_BRIDGE_CTL_VGA))
+                               return;
+               }
+               bus = bus->parent;
+       }
+       pci_read_config_word(pdev, PCI_COMMAND, &config);
+       if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
+               pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
+               printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev));
+       }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video);
+
 /*
  * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A.
  *