X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fi386%2Fpci%2Fcommon.c;h=1220dd828ce3e929d4d069feda59bd16d94f50b3;hb=40dd2d20f220eda1cd0da8ea3f0f9db8971ba237;hp=f6bc48da4d2a08b4bb48da2ccd32ae228e12a926;hpb=3d5271f9883cba7b54762bc4fe027d4172f06db7;p=powerpc.git

diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index f6bc48da4d..1220dd828c 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -8,6 +8,7 @@
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
+#include <linux/dmi.h>
 
 #include <asm/acpi.h>
 #include <asm/segment.h>
@@ -16,10 +17,6 @@
 
 #include "pci.h"
 
-#ifdef CONFIG_PCI_BIOS
-extern  void pcibios_sort(void);
-#endif
-
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
@@ -120,11 +117,42 @@ void __devinit  pcibios_fixup_bus(struct pci_bus *b)
 	pci_read_bridge_bases(b);
 }
 
+/*
+ * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
+ */
+#ifdef __i386__
+static int __devinit assign_all_busses(struct dmi_system_id *d)
+{
+	pci_probe |= PCI_ASSIGN_ALL_BUSSES;
+	printk(KERN_INFO "%s detected: enabling PCI bus# renumbering"
+			" (pci=assign-busses)\n", d->ident);
+	return 0;
+}
+#endif
+
+/*
+ * Laptops which need pci=assign-busses to see Cardbus cards
+ */
+static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
+#ifdef __i386__
+	{
+		.callback = assign_all_busses,
+		.ident = "Samsung X20 Laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"),
+		},
+	},
+#endif		/* __i386__ */
+	{}
+};
 
 struct pci_bus * __devinit pcibios_scan_root(int busnum)
 {
 	struct pci_bus *bus = NULL;
 
+	dmi_check_system(pciprobe_dmi_table);
+
 	while ((bus = pci_find_next_bus(bus)) != NULL) {
 		if (bus->number == busnum) {
 			/* Already scanned */
@@ -209,6 +237,11 @@ char * __devinit  pcibios_setup(char *str)
 		pci_probe &= ~PCI_PROBE_MMCONF;
 		return NULL;
 	}
+	/* override DMI blacklist */
+	else if (!strcmp(str, "mmconf")) {
+		pci_probe |= PCI_PROBE_MMCONF_FORCE;
+		return NULL;
+	}
 #endif
 	else if (!strcmp(str, "noacpi")) {
 		acpi_noirq_set();
@@ -256,6 +289,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
 void pcibios_disable_device (struct pci_dev *dev)
 {
+	pcibios_disable_resources(dev);
 	if (pcibios_disable_irq)
 		pcibios_disable_irq(dev);
 }