The EthernetAVB should not depend on the bootloader to setup correct
drive-strength values. Values for drive-strength where found by examine
the registers after the bootloader have configured the registers and
successfully used the EthernetAVB.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 28 ++++++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index b1eab68..7f49d19 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -225,8 +225,32 @@
};
avb_pins: avb {
- groups = "avb_mdc";
- function = "avb";
+ mux {
+ groups = "avb_mdc", "avb_mii";
+ function = "avb";
+ };
+
+ pins_mdc {
+ groups = "avb_mdc";
+ drive-strength = <24>;
+ };
+
+ pins_mii_tx {
+ pins = "PIN_AVB_TX_CTL", "PIN_AVB_TXC", "PIN_AVB_TD0",
+ "PIN_AVB_TD1", "PIN_AVB_TD2", "PIN_AVB_TD3";
+ drive-strength = <12>;
+ };
+
+ pins_mii_rx {
+ pins = "PIN_AVB_RX_CTL", "PIN_AVB_RXC", "PIN_AVB_RD0",
+ "PIN_AVB_RD1", "PIN_AVB_RD2", "PIN_AVB_RD3";
+ drive-strength = <24>;
+ };
+
+ pins_mii_clk {
+ pins = "PIN_AVB_TXCREFCLK";
+ drive-strength = <24>;
+ };
};
du_pins: du {
--
2.10.2
