On Thu, 12 Sep 2013 09:50:40 -0700, Soren Brinkmann <soren.brinkmann@xxxxxxxxxx> wrote:
> Zynq is based on an ARM Cortex-A9 MPCore, which features the
> arm_global_timer in its SCU. Therefore enable the timer for Zynq.
>
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/zynq-7000.dtsi | 8 ++++++++
> arch/arm/mach-zynq/Kconfig | 1 +
> 2 files changed, 9 insertions(+)
>
> diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
> index e32b92b..eaacb39 100644
> --- a/arch/arm/boot/dts/zynq-7000.dtsi
> +++ b/arch/arm/boot/dts/zynq-7000.dtsi
> @@ -92,6 +92,14 @@
> };
> };
>
> + global_timer: global_timer@f8f00200 {
Nit: node names and property names use '-' not '_'. Plus the generic
names principle suggests the node should be names 'timer' not
'global_timer'. The following would be fine:
global_timer: timer@f8f00200 {
(There's a distinction between node names and labels. '_' is fine in
labels since it doesn't get output into the compiled .dtb.
g.
> + compatible = "arm,cortex-a9-global-timer";
> + reg = <0xf8f00200 0x20>;
> + interrupts = <1 11 0x301>;
> + interrupt-parent = <&intc>;
> + clocks = <&clkc 4>;
> + };
> +
> ttc0: ttc0@f8001000 {
> interrupt-parent = <&intc>;
> interrupts = < 0 10 4 0 11 4 0 12 4 >;
> diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
> index 04f8a4a..6b04260 100644
> --- a/arch/arm/mach-zynq/Kconfig
> +++ b/arch/arm/mach-zynq/Kconfig
> @@ -13,5 +13,6 @@ config ARCH_ZYNQ
> select HAVE_SMP
> select SPARSE_IRQ
> select CADENCE_TTC_TIMER
> + select ARM_GLOBAL_TIMER
> help
> Support for Xilinx Zynq ARM Cortex A9 Platform
> --
> 1.8.4
>
> --
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