alistair23-linux/arch/arm/boot/dts/am57xx-beagle-x15.dts
Grygorii Strashko 52349a2abf ARM: dts: am57xx-beagle-x15: implement errata "Ethernet RGMII2 Limited to 10/100 Mbps"
According to errata i880 description the speed of Ethernet port 1 on AM572x
SoCs rev 1.1 should be limited to 10/100Mbps, because RGMII2 Switching
Characteristics are not compatible with 1000 Mbps operation [1].
The issue is fixed with Rev 2.0 silicon.

Hence, rework Beagle-X15 and Begale-X15-revb1 to use phy-handle instead of
phy_id and apply corresponding limitation to the Ethernet Phy 1.

[1] http://www.ti.com/lit/er/sprz429j/sprz429j.pdf

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-12 14:52:54 -08:00

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/*
* Copyright (C) 2014-2016 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "am57xx-beagle-x15-common.dtsi"
/ {
/* NOTE: This describes the "original" pre-production A2 revision */
model = "TI AM5728 BeagleBoard-X15";
};
&tpd12s015 {
gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>, /* gpio7_10, CT CP HPD */
<&gpio6 28 GPIO_ACTIVE_HIGH>, /* gpio6_28, LS OE */
<&gpio7 12 GPIO_ACTIVE_HIGH>; /* gpio7_12/sp1_cs2, HPD */
};
&mmc1 {
vmmc-supply = <&ldo1_reg>;
};
/* errata i880 "Ethernet RGMII2 Limited to 10/100 Mbps" */
&phy1 {
max-speed = <100>;
};