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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2007-05-17 14:51:47 +0200
committerRalf Baechle <ralf@linux-mips.org>2007-06-06 19:34:31 +0100
commit0c2bf745f9bdef7243ef5f04e6b05f592abead06 (patch)
treec896ae0f72ecf64da6b2147b00a343eaca2b79c4 /arch/mips/sni/pcimt.c
parentd73d420708f456a63d7db2c504c62cd713381d7d (diff)
[MIPS] RM300: Fix MMIO problems by marking the PCI INT ACK region busy
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sni/pcimt.c')
-rw-r--r--arch/mips/sni/pcimt.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/mips/sni/pcimt.c b/arch/mips/sni/pcimt.c
index 9ee208daa8b..97b234361b4 100644
--- a/arch/mips/sni/pcimt.c
+++ b/arch/mips/sni/pcimt.c
@@ -6,7 +6,7 @@
* for more details.
*
* Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
+ * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
*/
#include <linux/init.h>
@@ -131,6 +131,19 @@ static struct resource pcimt_io_resources[] = {
}
};
+static struct resource pcimt_mem_resources[] = {
+ {
+ /*
+ * this region should only be 4 bytes long,
+ * but it's 16MB on all RM300C I've checked
+ */
+ .start = 0x1a000000,
+ .end = 0x1affffff,
+ .name = "PCI INT ACK",
+ .flags = IORESOURCE_BUSY
+ }
+};
+
static struct resource sni_mem_resource = {
.start = 0x18000000UL,
.end = 0x1fbfffffUL,
@@ -145,6 +158,9 @@ static void __init sni_pcimt_resource_init(void)
/* request I/O space for devices used on all i[345]86 PCs */
for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++)
request_resource(&sni_io_resource, pcimt_io_resources + i);
+ /* request MEM space for devices used on all i[345]86 PCs */
+ for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++)
+ request_resource(&sni_mem_resource, pcimt_mem_resources + i);
}
extern struct pci_ops sni_pcimt_ops;