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authorWolfgang Denk <wd@denx.de>2010-03-21 22:45:36 +0100
committerWolfgang Denk <wd@denx.de>2010-03-21 22:45:36 +0100
commitb46b353b901a45ebe860f8bf874ca99f018cd410 (patch)
treee2d42c0f36b9d7b67c1a17fe97f4734552370a6b /README
parent3c950e2ebfde083084cc926b020e3a22a536bf85 (diff)
parentdaa989b47297c9f73426783599c286ef3a1f3f49 (diff)
downloadu-boot-imx-b46b353b901a45ebe860f8bf874ca99f018cd410.zip
u-boot-imx-b46b353b901a45ebe860f8bf874ca99f018cd410.tar.gz
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Merge remote branch 'origin/master' into next
Diffstat (limited to 'README')
-rw-r--r--README19
1 files changed, 16 insertions, 3 deletions
diff --git a/README b/README
index 1158e24..940b507 100644
--- a/README
+++ b/README
@@ -3005,7 +3005,9 @@ environment. As long as you don't save the environment you are
working with an in-memory copy. In case the Flash area containing the
environment is erased by accident, a default environment is provided.
-Some configuration options can be set using Environment Variables:
+Some configuration options can be set using Environment Variables.
+
+List of environment variables (most likely not complete):
baudrate - see CONFIG_BAUDRATE
@@ -3117,7 +3119,7 @@ Some configuration options can be set using Environment Variables:
available network interfaces.
It just stays at the currently selected interface.
- netretry - When set to "no" each network operation will
+ netretry - When set to "no" each network operation will
either succeed or fail without retrying.
When set to "once" the network operation will
fail when all the available network interfaces
@@ -3133,7 +3135,18 @@ Some configuration options can be set using Environment Variables:
tftpdstport - If this is set, the value is used for TFTP's UDP
destination port instead of the Well Know Port 69.
- vlan - When set to a value < 4095 the traffic over
+ tftpblocksize - Block size to use for TFTP transfers; if not set,
+ we use the TFTP server's default block size
+
+ tftptimeout - Retransmission timeout for TFTP packets (in milli-
+ seconds, minimum value is 1000 = 1 second). Defines
+ when a packet is considered to be lost so it has to
+ be retransmitted. The default is 5000 = 5 seconds.
+ Lowering this value may make downloads succeed
+ faster in networks with high packet loss rates or
+ with unreliable TFTP servers.
+
+ vlan - When set to a value < 4095 the traffic over
Ethernet is encapsulated/received over 802.1q
VLAN tagged frames.