diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2017-01-12 11:14:29 -0600 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-01-12 14:52:54 -0800 |
| commit | 52349a2abff1a675ac51077e7bfc60054872245d (patch) | |
| tree | f0541859af0a838565046d1ea847ea28eef666eb /arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts | |
| parent | c554a6d8fe5cd899486247ef5f9d3dc4d693685e (diff) | |
| download | linux-52349a2abff1a675ac51077e7bfc60054872245d.tar.gz | |
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>
Diffstat (limited to 'arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts')
| -rw-r--r-- | arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts index ca85570629fd..39a92aff0a0d 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts @@ -22,3 +22,8 @@ vmmc-supply = <&vdd_3v3>; vmmc-aux-supply = <&ldo1_reg>; }; + +/* errata i880 "Ethernet RGMII2 Limited to 10/100 Mbps" */ +&phy1 { + max-speed = <100>; +}; |