[PATCH] net/eth: read default mac-address default from dts
From: Michael Grzeschik <hidden>
Date: 2021-06-15 21:10:59
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Since we have the function of_get_mac_address we can use it to set the default mac address vom the dts. Signed-off-by: Michael Grzeschik <redacted> --- net/eth.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/net/eth.c b/net/eth.c
index 84f99d3aa8..baebf89d89 100644
--- a/net/eth.c
+++ b/net/eth.c@@ -11,6 +11,7 @@ #include <net.h> #include <dma.h> #include <of.h> +#include <of_net.h> #include <linux/phy.h> #include <errno.h> #include <malloc.h>
@@ -431,6 +432,14 @@ int eth_register(struct eth_device *edev) if (!ret) found = 1; + if (!found && edev->parent) { + const u8 *maddr = of_get_mac_address(edev->parent->device_node); + if (maddr) { + memcpy(ethaddr, maddr, ETH_ALEN); + found = 1; + } + } + if (!found) { ret = edev->get_ethaddr(edev, ethaddr); if (!ret)
--
2.29.2
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