sunxi: Fix A20-OLinuXino-MICRO LAN8710 support
>From revision J the board uses new phy chip LAN8710. Compared
with RTL8201, RA17 pin is TXERR. It has pullup which causes phy
not to work. To fix this PA17 is muxed with GMAC function. This
makes the pin output-low.
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 52555da..d42d915 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -244,6 +244,14 @@
help
Enable the support for Sun7i GMAC Ethernet controller
+config SUN7I_GMAC_FORCE_TXERR
+ bool "Force PA17 as gmac function"
+ depends on SUN7I_GMAC
+ help
+ Some ethernet phys needs TXERR control. Since the GMAC
+ doesn't have such signal, setting PA17 as GMAC function
+ makes the pin output low, which enables data transmission.
+
config SUN4I_EMAC
bool "Allwinner Sun4i Ethernet MAC support"
depends on DM_ETH