You should possibly be able to call the DHCP init the same way it is done in
cmd/net.c function netboot_common
size = net_loop(proto);
if (size < 0) {
bootstage_error(BOOTSTAGE_ID_NET_NETLOOP_OK);
return CMD_RET_FAILURE;
}
bootstage_mark(BOOTSTAGE_ID_NET_NETLOOP_OK);
/* net_loop ok, update environment */
netboot_update_env();
net_loop I think will do DHCP init and then netboot_update_env will set the env
vars such as the ip address
-----Original Message-----
From: Jim Schaettle <jim.schaet...@etcconnect.com>
Sent: Wednesday, August 17, 2022 9:18 AM
To: u-boot@lists.denx.de
Subject: DHCP and TFTP
Hello! I have U-Boot installed on the SD card of my Orange Pi. It works great,
using SRVLOC to get the address of the server, DHCP to get an IP address, and
TFTP to get the application files.
I also have a rack of 48 Orange Pi devices with the same U-Boot code in their
SD cards. They all have a common power supply. When they boot, sometimes
do_pxe() runs before net_ip is set. (There are many devices trying to get IP
addresses.)
I have my own copy of the U-Boot code. Is there an environment variable that I
can set, or a code change that I can make? For example:
static int do_pxe(struct cmd_tbl *cmdtp, int flag, int argc, char *const
argv[]) {
struct cmd_tbl *cp;
if (net_ip.s_addr == 0) {
// now what?
}
...
Do you have any ideas? Thank you!
Jim Schaettle
