7 files changed, 70 insertions, 22 deletions

diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile
index 5461d4d5ea1e..62ad75c57e6a 100644
--- a/arch/i386/pci/Makefile
+++ b/arch/i386/pci/Makefile
@@ -1,4 +1,4 @@
-obj-y				:= i386.o
+obj-y				:= i386.o init.o
 
 obj-$(CONFIG_PCI_BIOS)		+= pcbios.o
 obj-$(CONFIG_PCI_MMCONFIG)	+= mmconfig.o direct.o
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index f6bc48da4d2a..dbece776c5b2 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>
@@ -120,11 +121,42 @@ 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 */
diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
index e3ac502bf2fb..99012b93bd12 100644
--- a/arch/i386/pci/direct.c
+++ b/arch/i386/pci/direct.c
@@ -245,7 +245,7 @@ static int __init pci_check_type2(void)
 	return works;
 }
 
-static int __init pci_direct_init(void)
+void __init pci_direct_init(void)
 {
 	struct resource *region, *region2;
 
@@ -258,16 +258,16 @@ static int __init pci_direct_init(void)
 	if (pci_check_type1()) {
 		printk(KERN_INFO "PCI: Using configuration type 1\n");
 		raw_pci_ops = &pci_direct_conf1;
-		return 0;
+		return;
 	}
 	release_resource(region);
 
  type2:
 	if ((pci_probe & PCI_PROBE_CONF2) == 0)
-		goto out;
+		return;
 	region = request_region(0xCF8, 4, "PCI conf2");
 	if (!region)
-		goto out;
+		return;
 	region2 = request_region(0xC000, 0x1000, "PCI conf2");
 	if (!region2)
 		goto fail2;
@@ -275,15 +275,10 @@ static int __init pci_direct_init(void)
 	if (pci_check_type2()) {
 		printk(KERN_INFO "PCI: Using configuration type 2\n");
 		raw_pci_ops = &pci_direct_conf2;
-		return 0;
+		return;
 	}
 
 	release_resource(region2);
  fail2:
 	release_resource(region);
-
- out:
-	return 0;
 }
-
-arch_initcall(pci_direct_init);
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c
new file mode 100644
index 000000000000..f9156d3ac723
--- /dev/null
+++ b/arch/i386/pci/init.c
@@ -0,0 +1,25 @@
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include "pci.h"
+
+/* arch_initcall has too random ordering, so call the initializers
+   in the right sequence from here. */
+static __init int pci_access_init(void)
+{
+#ifdef CONFIG_PCI_MMCONFIG
+	pci_mmcfg_init();
+#endif
+	if (raw_pci_ops)
+		return 0;
+#ifdef CONFIG_PCI_BIOS
+	pci_pcbios_init();
+#endif
+	if (raw_pci_ops)
+		return 0;
+#ifdef CONFIG_PCI_DIRECT
+	pci_direct_init();
+#endif
+	return 0;
+}
+arch_initcall(pci_access_init);
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 0ee8a983708c..613789071f30 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -172,25 +172,20 @@ static __init void unreachable_devices(void)
 	}
 }
 
-static int __init pci_mmcfg_init(void)
+void __init pci_mmcfg_init(void)
 {
 	if ((pci_probe & PCI_PROBE_MMCONF) == 0)
-		goto out;
+		return;
 
 	acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
 	if ((pci_mmcfg_config_num == 0) ||
 	    (pci_mmcfg_config == NULL) ||
 	    (pci_mmcfg_config[0].base_address == 0))
-		goto out;
+		return;
 
 	printk(KERN_INFO "PCI: Using MMCONFIG\n");
 	raw_pci_ops = &pci_mmcfg;
 	pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
 
 	unreachable_devices();
-
- out:
-	return 0;
 }
-
-arch_initcall(pci_mmcfg_init);
diff --git a/arch/i386/pci/pcbios.c b/arch/i386/pci/pcbios.c
index b9d65f0bc2d1..1eec0868f4b3 100644
--- a/arch/i386/pci/pcbios.c
+++ b/arch/i386/pci/pcbios.c
@@ -476,14 +476,12 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 }
 EXPORT_SYMBOL(pcibios_set_irq_routing);
 
-static int __init pci_pcbios_init(void)
+void __init pci_pcbios_init(void)
 {
 	if ((pci_probe & PCI_PROBE_BIOS) 
 		&& ((raw_pci_ops = pci_find_bios()))) {
 		pci_probe |= PCI_BIOS_SORT;
 		pci_bios_present = 1;
 	}
-	return 0;
 }
 
-arch_initcall(pci_pcbios_init);
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index f550781ec310..12035e29108b 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -80,4 +80,7 @@ extern int pci_conf1_write(unsigned int seg, unsigned int bus,
 extern int pci_conf1_read(unsigned int seg, unsigned int bus,
 			  unsigned int devfn, int reg, int len, u32 *value);
 
+extern void pci_direct_init(void);
+extern void pci_pcbios_init(void);
+extern void pci_mmcfg_init(void);