linux/Documentation/devicetree/bindings/clock/altr_socfpga.txt
Dinh Nguyen a92b83af28 ARM: socfpga: dts: Add gate-clock bindings
Add bindings for "socfpga-gate-clk" clocks. These clocks directly feed
the peripherals.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Olof Johansson <olof@lixom.net>
Cc: Pavel Machek <pavel@denx.de>
CC: <linux@arm.linux.org.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 16:35:00 -07:00

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Device Tree Clock bindings for Altera's SoCFPGA platform
This binding uses the common clock binding[1].
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
Required properties:
- compatible : shall be one of the following:
"altr,socfpga-pll-clock" - for a PLL clock
"altr,socfpga-perip-clock" - The peripheral clock divided from the
PLL clock.
"altr,socfpga-gate-clk" - Clocks that directly feed peripherals and
can get gated.
- reg : shall be the control register offset from CLOCK_MANAGER's base for the clock.
- clocks : shall be the input parent clock phandle for the clock. This is
either an oscillator or a pll output.
- #clock-cells : from common clock binding, shall be set to 0.
Optional properties:
- fixed-divider : If clocks have a fixed divider value, use this property.
- clk-gate : For "socfpga-gate-clk", clk-gate contains the gating register
and the bit index.
- div-reg : For "socfpga-gate-clk", div-reg contains the divider register, bit shift,
and width.