Commit 5f03dc20 authored Mar 13, 2013 by Christian Daudt Committed by Olof Johansson Apr 02, 2013

ARM: bcm281xx: Add timer driver (DT portion)



This adds support for the Broadcom timer, used in the following SoCs:
BCM11130, BCM11140, BCM11351, BCM28145, BCM28155

Updates from V6:
- Split DT portion into a separate patch

Updates from V5:
- Rebase to latest arm-soc/for-next

Updates from V4:
- Switch code to use CLOCKSOURCE_OF_DECLARE

Updates from V3:
- Migrate to 3.9 timer framework updates

Updates from V2:
- prepend static fns + fields with kona_

Updates from V1:
- Rename bcm_timer.c to bcm_kona_timer.c
- Pull .h into bcm_kona_timer.c
- Make timers static
- Clean up comment block
- Switched to using clockevents_config_and_register
- Added an error to the get_timer loop if it repeats too much
- Added to Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt
- Added missing readl to timer_disable_and_clear

Note: bcm,kona-timer was kept as the 'compatible' field to make it
specific enough for when there are multiple bcm timers (bcm,timer is
too generic).

Signed-off-by: Christian Daudt <csd@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

parent 33fe1e0e

Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt

0 → 100644

+19 −0

Original line number	Diff line number	Diff line
		Broadcom Kona Family timer
		-----------------------------------------------------
		This timer is used in the following Broadcom SoCs:
		BCM11130, BCM11140, BCM11351, BCM28145, BCM28155

		Required properties:
		- compatible : "bcm,kona-timer"
		- reg : Register range for the timer
		- interrupts : interrupt for the timer
		- clock-frequency: frequency that the clock operates

		Example:
		timer@35006000 {
		compatible = "bcm,kona-timer";
		reg = <0x35006000 0x1000>;
		interrupts = <0x0 7 0x4>;
		clock-frequency = <32768>;
		};

arch/arm/boot/dts/bcm11351.dtsi

+8 −0

Original line number	Diff line number	Diff line
		@@ -47,4 +47,12 @@
		cache-unified;
		cache-level = <2>;
		};

		timer@35006000 {
		compatible = "bcm,kona-timer";
		reg = <0x35006000 0x1000>;
		interrupts = <0x0 7 0x4>;
		clock-frequency = <32768>;
		};

		};