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--- a/README
+++ b/README
@@ -2751,6 +2751,14 @@ Low Level (hardware related) configuration options:
source code. It is used to make hardware dependant
initializations.
+- CONFIG_IDE_AHB:
+ Most IDE controllers were designed to be connected with PCI
+ interface. Only few of them were designed for AHB interface.
+ When software is doing ATA command and data transfer to
+ IDE devices through IDE-AHB controller, some additional
+ registers accessing to these kind of IDE-AHB controller
+ is requierd.
+
- CONFIG_SYS_IMMR: Physical address of the Internal Memory.
DO NOT CHANGE unless you know exactly what you're
doing! (11-4) [MPC8xx/82xx systems only]