[PATCH] ARM: mxs: m28evk: Disable OCOTP OUI loading
marex at denx.de
Thu Sep 20 12:33:38 EDT 2012
Dear Maxime Ripard,
> Hi Marek,
> Le 20/09/2012 15:10, Marek Vasut a écrit :
> >>> If barebox can't handle even basic DT fixup, it's broken.
> >> It can. It maybe was just not needed up to now, dunno.
> > Fix it and send patch, so this problem doesn't spread.
> I'm sorry, but you still miss the point.
> If someone wants to use another bootloader than U-boot (or a possible
> patched barebox), or none other than the bootlets to boot directly the
> Linux (with an appended device tree), you will still have no way to get
> the NIC from the OCOTP, and I'm sorry, but it is just wrong.
> The kernel shouldn't rely on a particular feature of a given bootloader.
So what do you think about this patch (skip loading from OCOTP if it's already
present in DT):
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 71d47f5..4f014ef 100644
@@ -175,6 +175,10 @@ static void __init update_fec_mac_prop(enum mac_oui oui)
np = of_find_compatible_node(from, NULL, "fsl,imx28-fec");
+ if (of_get_property(np, "local-mac-address", NULL))
from = np;
newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
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