clocksource: armada-370-xp: Fix device-tree binding
This commit fixes the DT binding for the Armada 370/XP SoC timer. The previous "marvell,armada-370-xp-timer" compatible is removed and two new compatible strings are introduced: "marvell,armada-xp-timer" and "marvell,armada-370-timer". The rationale behind this change is that the Armada 370 SoC and the Armada XP SoC timers are not really compatible: * Armada 370 has no 25 MHz fixed timer. * Armada XP cannot work properly without such 25 MHz fixed timer as doing otherwise leads to using a clocksource whose frequency varies when doing cpufreq frequency changes. This commit also removes the "marvell,timer-25Mhz" property, given it's now meaningless. Cc: devicetree@vger.kernel.org Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
parent
7cd6392c9b
commit
8ad31e66c1
|
@ -2,14 +2,31 @@ Marvell Armada 370 and Armada XP Timers
|
|||
---------------------------------------
|
||||
|
||||
Required properties:
|
||||
- compatible: Should be "marvell,armada-370-xp-timer"
|
||||
- compatible: Should be either "marvell,armada-370-timer" or
|
||||
"marvell,armada-xp-timer" as appropriate.
|
||||
- interrupts: Should contain the list of Global Timer interrupts and
|
||||
then local timer interrupts
|
||||
- reg: Should contain location and length for timers register. First
|
||||
pair for the Global Timer registers, second pair for the
|
||||
local/private timers.
|
||||
- clocks: clock driving the timer hardware
|
||||
- clocks: clock driving the timer hardware, only required for
|
||||
"marvell,armada-370-timer";
|
||||
|
||||
Optional properties:
|
||||
- marvell,timer-25Mhz: Tells whether the Global timer supports the 25
|
||||
Mhz fixed mode (available on Armada XP and not on Armada 370)
|
||||
Examples:
|
||||
|
||||
- Armada 370:
|
||||
|
||||
timer {
|
||||
compatible = "marvell,armada-370-timer";
|
||||
reg = <0x20300 0x30>, <0x21040 0x30>;
|
||||
interrupts = <37>, <38>, <39>, <40>, <5>, <6>;
|
||||
clocks = <&coreclk 2>;
|
||||
};
|
||||
|
||||
- Armada XP:
|
||||
|
||||
timer {
|
||||
compatible = "marvell,armada-xp-timer";
|
||||
reg = <0x20300 0x30>, <0x21040 0x30>;
|
||||
interrupts = <37>, <38>, <39>, <40>, <5>, <6>;
|
||||
};
|
||||
|
|
Loading…
Reference in a new issue