iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: dts: rockchip: Enable gmac for XPI-3128

Browse Source 
Add the required properties and enable the gmac node for XPI-3128 board.

The minimum reset timing requirements for the phy have been taken from
DP83848J's datasheet [0]

[0] https://www.ti.com/lit/ds/symlink/dp83848j.pdf

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20231202124158.65615-4-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Alex Bee 2023-12-02 13:41:59 +01:00 committed by Heiko Stuebner
parent 3d880c31d4
commit b47c0b9ed3
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
arch/arm/boot/dts/rockchip/rk3128-xpi-3128.dts
View File

@ -11,6 +11,7 @@
compatible = "geniatech,xpi-3128", "rockchip,rk3128";
aliases {
ethernet0 = &gmac;
gpio0 = &gpio0;
gpio1 = &gpio1;
gpio2 = &gpio2;
@ -255,6 +256,18 @@
status = "okay";
};
&gmac {
clock_in_out = "output";
phy-supply = <&vcc_lan>;
phy-mode = "rmii";
phy-handle = <&phy0>;
assigned-clocks = <&cru SCLK_MAC_SRC>;
assigned-clock-rates= <50000000>;
pinctrl-names = "default";
pinctrl-0 = <&rmii_pins>;
status = "okay";
};
&gpio0 {
gpio-line-names = /* GPIO0 A0-A7 */
"", "", "HEADER_5", "HEADER_3",
@ -315,6 +328,21 @@
"", "", "", "";
};
&mdio {
phy0: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <1>;
max-speed = <100>;
/* T2.2.4 min. 1 us */
reset-assert-us = <10>;
/* T2.2.1 + T2.2.2 + T2.2.3 min. 6.05 us */
reset-deassert-us = <20>;
reset-gpios = <&gpio2 RK_PD0 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&dp83848c_rst>;
};
};
&pinctrl {
dp83848c {
dp83848c_rst: dp83848c-rst {