commit 9f271d576a79f74a543c4099a014d8d4eafa737d
author Zhang, Yanmin <yanmin_zhang@linux.intel.com> Fri Feb 09 11:29:51 2007 +0800
committer Jeff Garzik <jeff@garzik.org> Thu Feb 15 18:04:53 2007 -0500
tree ff666086dd0756e879b16eca8dbb6c26b331c9dc
parent 81afe893181b283f9d182ea8637ce6ccdbe1a56a

ATA convert GSI to irq on ia64

If an ATA drive uses legacy mode, ata driver will choose 14 and 15
as the fixed irq number. On ia64 platform, such numbers are GSI and
should be converted to irq vector.

Below patch against kernel 2.6.20 fixes it.

Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

include/asm-ia64/libata-portmap.h

diff --git a/include/asm-ia64/libata-portmap.h b/include/asm-ia64/libata-portmap.h
new file mode 100644
index 0000000..0e00c9a
--- /dev/null
+++ b/include/asm-ia64/libata-portmap.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_IA64_LIBATA_PORTMAP_H
+#define __ASM_IA64_LIBATA_PORTMAP_H
+
+#define ATA_PRIMARY_CMD		0x1F0
+#define ATA_PRIMARY_CTL		0x3F6
+#define ATA_PRIMARY_IRQ(dev)	isa_irq_to_vector(14)
+
+#define ATA_SECONDARY_CMD	0x170
+#define ATA_SECONDARY_CTL	0x376
+#define ATA_SECONDARY_IRQ(dev)	isa_irq_to_vector(15)
+
+#endif