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net/net.c: Update ipaddr if the environment has changed 

At least on ARM the ipaddr is only set in board_init_r function. The
problem is if ipaddr is not defined in environment importing another
environment defined don't update the ipaddr value.

For example, suppose we've a default environment without net variables
defined and we want to import an uEnv.txt environment from SD-card like
this:

  ipaddr=192.168.2.240
  netmask=255.255.255.0
  gatewayip=192.168.2.1
  serverip=192.168.2.114

Then if you try boot from NFS results in:

  Importing environment from mmc ...
  Running uenvcmd ...
  smc911x: detected LAN9221 controller
  smc911x: phy initialized
  smc911x: MAC ac🇩🇪48:00:00:00
  *** ERROR: `ipaddr' not set

The ipaddr at this point is NULL beacause is only set at board_init_r
function. This patch updates the ipaddr value if the environment has
changed.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Enric Balletbo i Serra 2011-05-31 21:01:47 +00:00 committed by Wolfgang Denk
parent f345334d25
commit 23a70bf9c3
1 changed files with 2 additions and 1 deletions
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3
net/net.c
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@ -321,7 +321,8 @@ NetInitLoop(proto_t protocol)
/* update only when the environment has changed */
if (env_changed_id != env_id) {
NetCopyIP(&NetOurIP, &bd->bi_ip_addr);
NetOurIP = getenv_IPaddr("ipaddr");
NetCopyIP(&bd->bi_ip_addr, &NetOurIP);
NetOurGatewayIP = getenv_IPaddr("gatewayip");
NetOurSubnetMask = getenv_IPaddr("netmask");
NetServerIP = getenv_IPaddr("serverip");