There are fields in VxWorks bootline for netmask and gatewayip.
We can get these from U-Boot environment variables and pass them
to VxWorks, just like ipaddr and serverip.

Signed-off-by: Bin Meng <bmeng...@gmail.com>
---

 common/cmd_elf.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index 62863df..5a34bde 100644
--- a/common/cmd_elf.c
+++ b/common/cmd_elf.c
@@ -287,13 +287,24 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
                                "%s:file ", CONFIG_SYS_VXWORKS_SERVERNAME);
 
                tmp = getenv("ipaddr");
-               if (tmp)
-                       sprintf(&build_buf[strlen(build_buf)], "e=%s ", tmp);
+               if (tmp) {
+                       sprintf(&build_buf[strlen(build_buf)], "e=%s", tmp);
+                       tmp = getenv("netmask");
+                       if (tmp)
+                               sprintf(&build_buf[strlen(build_buf)],
+                                       ":%04x ", getenv_ip("netmask").s_addr);
+                       else
+                               sprintf(&build_buf[strlen(build_buf)], " ");
+               }
 
                tmp = getenv("serverip");
                if (tmp)
                        sprintf(&build_buf[strlen(build_buf)], "h=%s ", tmp);
 
+               tmp = getenv("gatewayip");
+               if (tmp)
+                       sprintf(&build_buf[strlen(build_buf)], "g=%s ", tmp);
+
                tmp = getenv("hostname");
                if (tmp)
                        sprintf(&build_buf[strlen(build_buf)], "tn=%s ", tmp);
-- 
1.8.2.1

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