Eric Lee / smarc-uboot

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Commit d9a2f416d6ac6058cd7845033ae4dc32ef1c0746

Authored by Aras Vaichas
Committed by Ben Warren
1 parent 74d1e66d22
Exists in master and in 54 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, imx_v2015.04_4.1.15_1.0.0_ga, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-emmc-imx_v2014.04_3.10.53_1.1.0_ga, smarc-emmc-imx_v2014.04_3.14.28_1.0.0_ga, smarc-imx-l5.0.0_1.0.0-ga, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2014.04_3.14.28_1.0.0_ga, smarc-imx_v2015.04_4.1.15_1.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-m6.0.1_2.1.0-ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_2.0.0_ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, ti-u-boot-2015.07, u-boot-2013.01.y, v2013.10, v2013.10-smarct33, v2013.10-smartmen, v2014.01, v2014.04, v2014.04-smarct33, v2014.04-smarct33-emmc, v2014.04-smartmen, v2014.07, v2014.07-smarct33, v2014.07-smartmen, v2015.07-smarct33, v2015.07-smarct33-emmc, v2015.07-smarct4x, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc, v2017.01-smarct4x

DHCP request fix for Windows Server 2003 

Added option CONFIG_BOOTP_DHCP_REQUEST_DELAY. This provides an optional
delay before sending "DHCP Request" in net/bootp.c. Required to overcome
interoperability problems with Windows Server 200x DHCP server when U-Boot
client responds too fast for server to handle.

Signed-off-by: Aras Vaichas <arasv@magtech.com.au>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

Showing 2 changed files with 18 additions and 1 deletions Side-by-side Diff

... ... @@ -1151,6 +1151,20 @@
1151 1151 of the "hostname" environment variable is passed as
1152 1152 option 12 to the DHCP server.
1153 1153  
  1154 + CONFIG_BOOTP_DHCP_REQUEST_DELAY
  1155 +
  1156 + A 32bit value in microseconds for a delay between
  1157 + receiving a "DHCP Offer" and sending the "DHCP Request".
  1158 + This fixes a problem with certain DHCP servers that don't
  1159 + respond 100% of the time to a "DHCP request". E.g. On an
  1160 + AT91RM9200 processor running at 180MHz, this delay needed
  1161 + to be *at least* 15,000 usec before a Windows Server 2003
  1162 + DHCP server would reply 100% of the time. I recommend at
  1163 + least 50,000 usec to be safe. The alternative is to hope
  1164 + that one of the retries will be successful but note that
  1165 + the DHCP timeout and retry process takes a longer than
  1166 + this delay.
  1167 +
1154 1168 - CDP Options:
1155 1169 CONFIG_CDP_DEVICE_ID
1156 1170  
... ... @@ -879,7 +879,10 @@
879 879 iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen;
880 880 NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen);
881 881  
882   - debug ("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
  882 + debug ("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
  883 +#ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY
  884 + udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY);
  885 +#endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */
883 886 NetSendPacket(NetTxPacket, pktlen);
884 887 }
885 888