From 38b99261c13a54ea955a8fe9176e73256486362f Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Fri, 23 May 2003 23:18:21 +0000
Subject: Add zero-copy ramdisk support (requires corresponding kernel
 support!)

---
 README | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'README')

diff --git a/README b/README
index 4dfb292bf5..ecc087ad91 100644
--- a/README
+++ b/README
@@ -1988,6 +1988,14 @@ Some configuration options can be set using Environment Variables:
 
 		  setenv initrd_high 00c00000
 
+                  If you set initrd_high to 0xFFFFFFFF, this is an
+                  indication to U-Boot that all addresses are legal
+                  for the Linux kernel, including addresses in flash
+                  memory. In this case U-Boot will NOT COPY the
+                  ramdisk at all. This may be useful to reduce the
+                  boot time on your system, but requires that this
+                  feature is supported by your Linux kernel.
+
   ipaddr	- IP address; needed for tftpboot command
 
   loadaddr	- Default load address for commands like "bootp",
-- 
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