A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

arc_emac: add clock handling

Browse source 
This adds ability for the arc_emac to really handle its supplying clock.
To get the needed clock-frequency either a real clock or the previous
clock-frequency property must be provided.

Signed-off-by: Heiko Stuebner <[email protected]>
Tested-by: Max Schwarz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Heiko Stübner 2014-04-25 10:06:13 +02:00 • committed by David S. Miller
commit 88154c96ee
3 changed files with 47 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Documentation/devicetree/bindings/net/arc_emac.txt
View file

@ -4,11 +4,15 @@ Required properties:
- compatible: Should be "snps,arc-emac"
- reg: Address and length of the register set for the device
- interrupts: Should contain the EMAC interrupts
- clock-frequency: CPU frequency. It is needed to calculate and set polling
period of EMAC.
- max-speed: see ethernet.txt file in the same directory.
- phy: see ethernet.txt file in the same directory.
Clock handling:
The clock frequency is needed to calculate and set polling period of EMAC.
It must be provided by one of:
- clock-frequency: CPU frequency.
- clocks: reference to the clock supplying the EMAC.
Child nodes of the driver are the individual PHY devices connected to the
MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
@ -19,7 +23,11 @@ Examples:
reg = <0xc0fc2000 0x3c>;
interrupts = <6>;
mac-address = [ 00 11 22 33 44 55 ];
clock-frequency = <80000000>;
/* or */
clocks = <&emac_clock>;
max-speed = <100>;
phy = <&phy0>;