Fix incorrect use of getenv() before relocation

[oweals/u-boot.git] / README

diff --git a/README b/README
index 2754d1e8b899184df08e3cd588ca1ceca04f7575..68dab2d1e3c4f1484f3d0dd4a81008b650b803a6 100644 (file)
--- a/README
+++ b/README
@@ -475,6 +475,18 @@ The following options need to be configured:
                define this to a list of base addresses for each (supported)
                port. See e.g. include/configs/versatile.h
 
+               CONFIG_PL011_SERIAL_RLCR
+
+               Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
+               have separate receive and transmit line control registers.  Set
+               this variable to initialize the extra register.
+
+               CONFIG_PL011_SERIAL_FLUSH_ON_INIT
+
+               On some platforms (e.g. U8500) U-Boot is loaded by a second stage
+               boot loader that has already initialized the UART.  Define this
+               variable to flush the UART at init time.
+
 
 - Console Interface:
                Depending on board, define exactly one serial port
@@ -1103,13 +1115,10 @@ The following options need to be configured:
                        CONFIG_VIDEO_LOGO
                        CONFIG_VIDEO_BMP_LOGO
 
-               The DIU driver will look for the 'monitor' environment variable,
-               and if defined, enable the DIU as a console during boot.  This
-               variable should be set to one of these values:
-
-                       '0'     Output video to the DVI connector
-                       '1'     Output video to the LVDS connector
-                       '2'     Output video to the Dual-Link LVDS connector
+               The DIU driver will look for the 'video-mode' environment
+               variable, and if defined, enable the DIU as a console during
+               boot.  See the documentation file README.video for a
+               description of this variable.
 
 - Keyboard Support:
                CONFIG_KEYBOARD
@@ -1313,7 +1322,6 @@ The following options need to be configured:
                driver in use must provide a function: mcast() to join/leave a
                multicast group.
 
-               CONFIG_BOOTP_RANDOM_DELAY
 - BOOTP Recovery Mode:
                CONFIG_BOOTP_RANDOM_DELAY
 
@@ -2761,6 +2769,14 @@ 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]