sparc32,leon: add support for PCI busn resource for GRPCI2

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 8 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/leon_pci.h b/arch/sparc/include/asm/leon_pci.h
index f48527ebdd8f..bfd3ab3092b5 100644
--- a/arch/sparc/include/asm/leon_pci.h
+++ b/arch/sparc/include/asm/leon_pci.h
@@ -12,6 +12,7 @@ struct leon_pci_info {
         struct pci_ops *ops;
         struct resource io_space;
         struct resource mem_space;
+        struct resource busn;
         int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
 };
 
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 852dc8430528..88aaaa57bb64 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -29,6 +29,8 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
         pci_add_resource_offset(&resources, &info->io_space,
                                 info->io_space.start - 0x1000);
         pci_add_resource(&resources, &info->mem_space);
+        info->busn.flags = IORESOURCE_BUS;
+        pci_add_resource(&resources, &info->busn);
 
         root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
                                      &resources);
diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c
index 4d1487138d26..5f0402aab7fb 100644
--- a/arch/sparc/kernel/leon_pci_grpci2.c
+++ b/arch/sparc/kernel/leon_pci_grpci2.c
@@ -799,6 +799,11 @@ static int grpci2_of_probe(struct platform_device *ofdev)
         if (request_resource(&ioport_resource, &priv->info.io_space) < 0)
                 goto err4;
 
+        /* setup maximum supported PCI buses */
+        priv->info.busn.name = "GRPCI2 busn";
+        priv->info.busn.start = 0;
+        priv->info.busn.end = 255;
+
         grpci2_hw_init(priv);
 
         /*