[PATCH 0/3] Versatile AB/PB clocksource support

[PATCH 0/3] Versatile AB/PB clocksource support

[Rob Herring]

The Versatile clocksource driver can also be used on Versatile AB and PB 
platforms, not just Versatile Express. This series adds support for 
those boards.

I've split this off from the rest of the Versatile DT and 
multi-platform support as I'm not going to get it in place for 3.20. 
This part is fairly trivial and is ready to go.

Daniel, Can you please take the whole series.

Rob

Rob Herring (3):
  dt/bindings: Add binding for Versatile system registers
  clocksource: versatile: adapt for Versatile AB and PB boards
  dts: versatile: add sysregs node

 Documentation/devicetree/bindings/arm/versatile-sysreg.txt | 10 ++++++++++
 arch/arm/boot/dts/versatile-ab.dts                         |  5 +++++
 drivers/clocksource/versatile.c                            |  4 +++-
 3 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/arm/versatile-sysreg.txt

-- 
2.1.0

[PATCH 1/3] dt/bindings: Add binding for Versatile system registers

[Rob Herring]

Add binding for Versatile board system registers found in the FPGA of the
Versatile/AB and Versatile/PB boards.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
---
 Documentation/devicetree/bindings/arm/versatile-sysreg.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/versatile-sysreg.txt

diff --git a/Documentation/devicetree/bindings/arm/versatile-sysreg.txt b/Documentation/devicetree/bindings/arm/versatile-sysreg.txt
new file mode 100644
index 0000000..a4f1526
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/versatile-sysreg.txt
@@ -0,0 +1,10 @@
+ARM Versatile system registers
+--------------------------------------
+
+This is a system control registers block, providing multiple low level
+platform functions like board detection and identification, software
+interrupt generation, MMC and NOR Flash control etc.
+
+Required node properties:
+- compatible value : = "arm,versatile-sysreg", "syscon"
+- reg : physical base address and the size of the registers window
-- 
2.1.0

Re: [PATCH 1/3] dt/bindings: Add binding for Versatile system registers

[Linus Walleij]

On Wed, Jan 28, 2015 at 6:56 PM, Rob Herring <robh@kernel.org> wrote:

> Add binding for Versatile board system registers found in the FPGA of the
> Versatile/AB and Versatile/PB boards.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
> Cc: Kumar Gala <galak@codeaurora.org>
> Cc: devicetree@vger.kernel.org

Acked-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

[PATCH 2/3] clocksource: versatile: adapt for Versatile AB and PB boards

[Rob Herring]

The same 24MHz counter is also present on Versatile AB and PB boards, so
add the compatible string for them.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/clocksource/versatile.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/versatile.c b/drivers/clocksource/versatile.c
index 2798e74..0a26d3d 100644
--- a/drivers/clocksource/versatile.c
+++ b/drivers/clocksource/versatile.c
@@ -36,5 +36,7 @@ static void __init versatile_sched_clock_init(struct device_node *node)
 
 	sched_clock_register(versatile_sys_24mhz_read, 32, 24000000);
 }
-CLOCKSOURCE_OF_DECLARE(versatile, "arm,vexpress-sysreg",
+CLOCKSOURCE_OF_DECLARE(vexpress, "arm,vexpress-sysreg",
+		       versatile_sched_clock_init);
+CLOCKSOURCE_OF_DECLARE(versatile, "arm,versatile-sysreg",
 		       versatile_sched_clock_init);
-- 
2.1.0

Re: [PATCH 2/3] clocksource: versatile: adapt for Versatile AB and PB boards

[Liviu Dudau]

On Wed, Jan 28, 2015 at 05:56:31PM +0000, Rob Herring wrote:
> The same 24MHz counter is also present on Versatile AB and PB boards, so
> add the compatible string for them.
> 
> Signed-off-by: Rob Herring <robh@kernel.org>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Sudeep Holla <sudeep.holla@arm.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> ---
>  drivers/clocksource/versatile.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clocksource/versatile.c b/drivers/clocksource/versatile.c
> index 2798e74..0a26d3d 100644
> --- a/drivers/clocksource/versatile.c
> +++ b/drivers/clocksource/versatile.c
> @@ -36,5 +36,7 @@ static void __init versatile_sched_clock_init(struct device_node *node)
>  
>  	sched_clock_register(versatile_sys_24mhz_read, 32, 24000000);
>  }
> -CLOCKSOURCE_OF_DECLARE(versatile, "arm,vexpress-sysreg",
> +CLOCKSOURCE_OF_DECLARE(vexpress, "arm,vexpress-sysreg",
> +		       versatile_sched_clock_init);
> +CLOCKSOURCE_OF_DECLARE(versatile, "arm,versatile-sysreg",
>  		       versatile_sched_clock_init);

Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>

> -- 
> 2.1.0
> 
> 

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯

[PATCH 3/3] dts: versatile: add sysregs node

[Rob Herring]

The Versatile boards have the same sysregs as other ARM Ltd boards. Add
the nodes in order to enable support for 24MHz counter as sched_clock.

This is a minimal node definition as the existing sub node definition
used on VExpress has some issues raised by Linus W.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: devicetree@vger.kernel.org
---
 arch/arm/boot/dts/versatile-ab.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 27d0d9c..01f4019 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -252,6 +252,11 @@
 			#size-cells = <1>;
 			ranges = <0 0x10000000 0x10000>;
 
+			sysreg@0 {
+				compatible = "arm,versatile-sysreg", "syscon";
+				reg = <0x00000 0x1000>;
+			};
+
 			aaci@4000 {
 				compatible = "arm,primecell";
 				reg = <0x4000 0x1000>;
-- 
2.1.0

Re: [PATCH 3/3] dts: versatile: add sysregs node

[Linus Walleij]

On Wed, Jan 28, 2015 at 6:56 PM, Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:

> The Versatile boards have the same sysregs as other ARM Ltd boards. Add
> the nodes in order to enable support for 24MHz counter as sched_clock.
>
> This is a minimal node definition as the existing sub node definition
> used on VExpress has some issues raised by Linus W.
>
> Signed-off-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
> Cc: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

Yours,
Linus Walleij
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html