sh: pci: Flag the dreamcast BBA as IORESOURCE_PCI_FIXED.

This isn't a real BAR, so prevent any attempts to move it, as we don't
wish to encourage a bus luck by overzealous PCI initialization code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 2bf85cf091e1..48c6381fffaa 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -41,6 +41,13 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev)
                  */
                 dev->resource[1].start  = p->io_resource->start  + 0x100;
                 dev->resource[1].end    = dev->resource[1].start + 0x200 - 1;
+
+                /*
+                 * This is not a normal BAR, prevent any attempts to move
+                 * the BAR, as this will result in a bus lock.
+                 */
+                dev->resource[1].flags |= IORESOURCE_PCI_FIXED;
+
                 /*
                  * Redirect dma memory allocations to special memory window.
                  */