From 5f03dc2002f5dc85ce87e69caff7f28f17f5c9b2 Mon Sep 17 00:00:00 2001 From: Christian Daudt Date: Wed, 13 Mar 2013 14:27:28 -0700 Subject: [PATCH] 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 Acked-by: Arnd Bergmann Acked-by: John Stultz Reviewed-by: Stephen Warren Signed-off-by: Olof Johansson --- .../bindings/arm/bcm/bcm,kona-timer.txt | 19 +++++++++++++++++++ arch/arm/boot/dts/bcm11351.dtsi | 8 ++++++++ 2 files changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt b/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt new file mode 100644 index 000000000000..59fa6e68d4f6 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt @@ -0,0 +1,19 @@ +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>; + }; + diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi index ad135885bd2a..8f71f40722b9 100644 --- a/arch/arm/boot/dts/bcm11351.dtsi +++ b/arch/arm/boot/dts/bcm11351.dtsi @@ -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>; + }; + }; -- 2.39.5