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sunxi: Ensure that the NIC specific bytes of the mac are not all 0

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On 2 of my H3 boards bytes 13-15 of the SID are all 0 leading to
the NIC specific bytes of the mac all being 0, which leads to the
boards not getting an ipv6 address from the dhcp server.

This commits adds a check to ensure this does not happen.

Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Corentin LABBE <clabbe.montjoie@gmail.com>
Cc: Amit Singh Tomar <amittomer25@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2016-07-27 17:58:06 +02:00
parent 3e5e274aed
commit 97322c3e07
1 changed files with 4 additions and 0 deletions
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4
board/sunxi/board.c
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@ -623,6 +623,10 @@ static void setup_environment(const void *fdt)
ret = sunxi_get_sid(sid);
if (ret == 0 && sid[0] != 0 && sid[3] != 0) {
/* Ensure the NIC specific bytes of the mac are not all 0 */
if ((sid[3] & 0xffffff) == 0)
sid[3] |= 0x800000;
for (i = 0; i < 4; i++) {
sprintf(ethaddr, "ethernet%d", i);
if (!fdt_get_alias(fdt, ethaddr))