linux-kernel - [linux-next PATCH 3/4] ARM: dts: keystone-k2g-ice: Enable netcp network driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 11 May 2018 15:29:11 -0400
From:   Murali Karicheri <m-karicheri2@...com>
To:     <ssantosh@...nel.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <linux@...linux.org.uk>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [linux-next PATCH 3/4] ARM: dts: keystone-k2g-ice: Enable netcp network driver

This patch adds dt bindings to enable netcp network driver on K2G
ICE boards. This consists of enabling bindings for NSS qmss, pktdma,
2u ethss, mdio, pinmux and netcp devices as well as DP83867 phy.

EVM hardware spec recommends to add 0.25 nsec delay in the tx direction
and 2.25 nsec delay in the rx direction for internal delay in the clock
path to be on the safer side.

The board straps RX_DV/RX_CTRL pin of on board DP83867 phy in mode 1.
The phy data manual disallows this. Add ti,dp83867-rxctrl-strap-quirk
in the phy node to allow software to enable the workaround suggested for
this incorrect strap setting. This ensures proper operation of this PHY.

Signed-off-by: Murali Karicheri <m-karicheri2@...com>
---
 arch/arm/boot/dts/keystone-k2g-ice.dts | 59 ++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g-ice.dts b/arch/arm/boot/dts/keystone-k2g-ice.dts
index d820ed2..2a2d38c 100644
--- a/arch/arm/boot/dts/keystone-k2g-ice.dts
+++ b/arch/arm/boot/dts/keystone-k2g-ice.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include "keystone-k2g.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
 
 / {
 	compatible = "ti,k2g-ice", "ti,k2g", "ti,keystone";
@@ -281,6 +282,30 @@
 			K2G_CORE_IOPAD(0x11bc) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3)	/* spi2_scsn1.gpio0_102 */
 		>;
 	};
+
+	emac_pins: pinmux_emac_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x113C) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXD1.RGMII_RXD1 */
+			K2G_CORE_IOPAD(0x1138) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXD2.RGMII_RXD2 */
+			K2G_CORE_IOPAD(0x1134) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXD3.RGMII_RXD3 */
+			K2G_CORE_IOPAD(0x1140) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXD0.RGMII_RXD0 */
+			K2G_CORE_IOPAD(0x1178) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXD0.RGMII_TXD0 */
+			K2G_CORE_IOPAD(0x1174) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXD1.RGMII_TXD1 */
+			K2G_CORE_IOPAD(0x1170) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXD2.RGMII_TXD2 */
+			K2G_CORE_IOPAD(0x116C) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXD3.RGMII_TXD3 */
+			K2G_CORE_IOPAD(0x1154) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXCLK.RGMII_TXC */
+			K2G_CORE_IOPAD(0x117C) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_TXEN.RGMII_TXCTL */
+			K2G_CORE_IOPAD(0x1120) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXCLK.RGMII_RXC */
+			K2G_CORE_IOPAD(0x1144) (BUFFER_CLASS_D | PULL_DISABLE | MUX_MODE1)	/* MII_RXDV.RGMII_RXCTL */
+		>;
+	};
+
+	mdio_pins: pinmux_mdio_pins {
+		pinctrl-single,pins = <
+			K2G_CORE_IOPAD(0x118C) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* MDIO_CLK.MDIO_CLK */
+			K2G_CORE_IOPAD(0x1188) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0)	/* MDIO_DATA.MDIO_DATA */
+		>;
+	};
 };
 
 &uart0 {
@@ -386,3 +411,37 @@
 		vcc-supply = <&vdd_3v3>;
 	};
 };
+
+&qmss {
+	status = "okay";
+};
+
+&knav_dmas {
+	status = "okay";
+};
+
+&netcp {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_pins>;
+	status = "okay";
+};
+
+&mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio_pins>;
+	status = "okay";
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
+		ti,min-output-impedance;
+		ti,dp83867-rxctrl-strap-quirk;
+	};
+};
+
+&gbe0 {
+	phy-handle = <&ethphy0>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+};
-- 
1.9.1