[U-Boot] [PATCH 02/11] IDE: Don't assume there are always two devices per bus

rogan at dawes.za.net
2011-03-18T08:04:51Z

From: Rogan Dawes <rogan@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