Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-14 16:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: dts: sun7i: Add GMAC clock node to sun7i DTSI

Browse Source 
The GMAC uses 1 of 2 sources for its transmit clock, depending on the
PHY interface mode. Add both sources as dummy clocks, and as parents
to the GMAC clock node.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2014-02-10 18:35:48 +08:00 committed by Maxime Ripard
parent 06067a2f62
commit daed5a8163
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/sun7i-a20.dtsi
View File

@ -321,6 +321,34 @@
clock-output-names = "mbus";
};
/*
* The following two are dummy clocks, placeholders used in the gmac_tx
* clock. The gmac driver will choose one parent depending on the PHY
* interface mode, using clk_set_rate auto-reparenting.
* The actual TX clock rate is not controlled by the gmac_tx clock.
*/
mii_phy_tx_clk: clk@2 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <25000000>;
clock-output-names = "mii_phy_tx";
};
gmac_int_tx_clk: clk@3 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <125000000>;
clock-output-names = "gmac_int_tx";
};
gmac_tx_clk: clk@01c20164 {
#clock-cells = <0>;
compatible = "allwinner,sun7i-a20-gmac-clk";
reg = <0x01c20164 0x4>;
clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
clock-output-names = "gmac_tx";
};
/*
* Dummy clock used by output clocks
*/