[U-Boot] [PATCH 02/11] IDE: Don't assume there are always two devices per bus
rogan at dawes.za.net
rogan at dawes.za.net
Fri Mar 18 09:04:51 CET 2011
From: Rogan Dawes <rogan at dawes.za.net>
Some SATA controllers can operate in an IDE compatible mode (e.g. mvsata)
but will only ever have a single device per bus.
This allows the upcoming DNS323 port to properly identify and use
a drive on both SATA interfaces.
---
include/ide.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/include/ide.h b/include/ide.h
index 6a1b7ae..c812b28 100644
--- a/include/ide.h
+++ b/include/ide.h
@@ -24,7 +24,8 @@
#ifndef _IDE_H
#define _IDE_H
-#define IDE_BUS(dev) (dev >> 1)
+#define IDE_BUS(dev) (dev >> ((CONFIG_SYS_IDE_MAXDEVICE / \
+ CONFIG_SYS_IDE_MAXBUS) - 1))
#define ATA_CURR_BASE(dev) (CONFIG_SYS_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
--
1.7.1
More information about the U-Boot
mailing list