From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Date: Mon, 5 Dec 2016 17:43:10 +0000 (+0100)
Subject: arm64: dts: r8a7795: salvator-x: Set drive-strength for ravb pins
X-Git-Tag: v4.12-rc1~52^2~22^2~10
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=7d73a4da2681dc5d04e8ed9f4aa96c1deed2dbc5;p=linux.git

arm64: dts: r8a7795: salvator-x: Set drive-strength for ravb pins

The EthernetAVB should not depend on the bootloader to setup correct
drive-strength values. Values for drive-strength where found by
examining the registers after the bootloader has configured the
registers and successfully used the EthernetAVB.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index 5158ba3f9ce3..277ab8484e0c 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -247,8 +247,22 @@ i2c2_pins: i2c2 {
 	};
 
 	avb_pins: avb {
-		groups = "avb_mdc";
-		function = "avb";
+		mux {
+			groups = "avb_link", "avb_phy_int", "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>;
+		};
 	};
 
 	du_pins: du {