[22/32] arm64: dts: r8a7795: salvator-x: Set drive-strength for ravb pins

Submitted by Simon Horman on March 20, 2017, 8:57 a.m.

Details

Message ID 7d73a4da2681dc5d04e8ed9f4aa96c1deed2dbc5.1489999913.git.horms+renesas@verge.net.au
State New
Headers show

Commit Message

Simon Horman March 20, 2017, 8:57 a.m.
From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

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>
---
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

Patch hide | download patch | download mbox

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 @@ 
 	};
 
 	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 {