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authorAlbert Aribaud <[albert.aribaud@free.fr]>2010-08-08 05:17:05 +0530
committerPrafulla Wadaskar <prafulla@marvell.com>2010-08-08 05:17:05 +0530
commitf2a37fcd9ba9d3d0aab5864141715596aff1de60 (patch)
treea33520591661fdc3fffbdc07f4ccf6f151d82bbb /doc
parent9efac4a1eb99d9c5539aa6992025eeacab7980c6 (diff)
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ide: add configuration
CONFIG_IDE_SWAP_IO This configuration option replaces a complex conditional in cmd_ide.c with an explicit define to be added to SoC or board configs. Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
Diffstat (limited to 'doc')
-rw-r--r--doc/README.PXA_CF8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/README.PXA_CF b/doc/README.PXA_CF
index 6a0f236..1d76b32 100644
--- a/doc/README.PXA_CF
+++ b/doc/README.PXA_CF
@@ -6,6 +6,14 @@ follow the connections of the standard lubbock. Anyway just the block
marked memory configuration should be touched since the other parameters
are imposed by the PXA architecture.
+EDIT 2010-07-01: in common/cmd_ide.c, having CONFIG_PXA_PCMCIA defined
+would cause looping on inw()/outw() rather than using insw()/outsw(),
+thus making sure IDE / ATA bytes are properly swapped. This behaviour
+is now controlled by CONFIG_IDE_SWAP_IO, therefore PXA boards with
+PCMCIA should #define CONFIG_IDE_SWAP_IO.
+
+#define CONFIG_IDE_SWAP_IO
+
#define CONFIG_PXA_PCMCIA 1
#define CONFIG_PXA_IDE 1