[PATCH v3 0/2] ARM64: Enable SP805 WDT support for FSL LS2080A

[PATCH v3 0/2] ARM64: Enable SP805 WDT support for FSL LS2080A

[Bhupesh Sharma]

This is the v3 of patchset which adds the support for SP805 WDT on FSL LS2080A
and also adds the missing documentation of SP805 WDT device-tree bindings.

Rebased against arm-soc/next/dt

Changes since v2:
(v2 can be viewed here: http://permalink.gmane.org/gmane.linux.ports.arm.kernel/463141)
- Addressed Rob's comments regarding the second mandatory CLK source's
  (WDOGCLK) name in the bindings.

Changes since v1:
(v1 can be viewed here: http://www.spinics.net/lists/devicetree/msg102487.html)

- Addressed Rob and Mark's comments regarding the mandatory CLK sources
- Removed interrupt property from the bindings for now (as discussed
  with Mark on IRC) till Will's patch proceeds further and enables
  handling the WDOG interrupts for each core connected to the same PPI
  line (http://lists.infradead.org/pipermail/linux-arm-kernel/2015-December/391616.html)

Bhupesh Sharma (2):
  Documentation: DT: Add entry for ARM SP805-WDT
  dts/ls2080a: Update DTSI to add support of SP805 WDT

 .../devicetree/bindings/watchdog/sp805-wdt.txt     |   29 ++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi     |   56 ++++++++++++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt

-- 
1.7.9.5

[PATCH v3 1/2] Documentation: DT: Add entry for ARM SP805-WDT

[Bhupesh Sharma]

This patch adds a devicetree binding documentation for ARM's
SP805 WatchDog Timer.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
---
 .../devicetree/bindings/watchdog/sp805-wdt.txt     |   29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
new file mode 100644
index 0000000..45b5afc
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
@@ -0,0 +1,29 @@
+* ARM SP805 Watchdog Timer (WDT) Controller
+
+SP805 WDT is a ARM Primecell Peripheral and has a standard-id register that
+can be used to identify the peripheral type, vendor, and revision.
+This value can be used for driver matching.
+
+As SP805 WDT is a primecell IP, it follows the base bindings specified in
+'arm/primecell.txt'
+
+Required properties:
+- compatible : Should be "arm,sp805-wdt", "arm,primecell"
+- reg : Base address and size of the watchdog timer registers.
+- clocks : From common clock binding.
+           First clock is PCLK and the second is WDOGCLK.
+           WDOGCLK can be equal to or be a sub-multiple of the PCLK frequency.
+- clock-names : From common clock binding. Shall be "apb_pclk" for first clock.
+
+Optional properties:
+- interrupts : Should specify WDT interrupt number.
+
+Examples:
+
+		cluster1_core0_watchdog: wdt at c000000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc000000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
-- 
1.7.9.5

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Bhupesh Sharma]

This patch updates the LS2080a DTSI (DTS Include) file to add
support for eight SP805 Watchdog units which can be used to
reset the eight Cortex-A57 cores available on LS2080A.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
---
 arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56 ++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
index e81cd48..7b0f411 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
@@ -193,6 +193,62 @@
 			interrupts = <0 32 0x4>; /* Level high type */
 		};
 
+		cluster1_core0_watchdog: wdt at c000000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc000000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster1_core1_watchdog: wdt at c010000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc010000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster2_core0_watchdog: wdt at c100000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc100000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster2_core1_watchdog: wdt at c110000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc110000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster3_core0_watchdog: wdt at c200000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc200000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster3_core1_watchdog: wdt at c210000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc210000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster4_core0_watchdog: wdt at c300000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc300000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
+		cluster4_core1_watchdog: wdt at c310000 {
+			compatible = "arm,sp805-wdt", "arm,primecell";
+			reg = <0x0 0xc310000 0x0 0x1000>;
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "apb_pclk", "wdog_clk";
+		};
+
 		fsl_mc: fsl-mc at 80c000000 {
 			compatible = "fsl,qoriq-mc";
 			reg = <0x00000008 0x0c000000 0 0x40>,	 /* MC portal base */
-- 
1.7.9.5

[PATCH v3 0/2] ARM64: Enable SP805 WDT support for FSL LS2080A

[Bhupesh SHARMA]

Hi Rob, Mark,

On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
<bhupesh.sharma@freescale.com> wrote:
> This is the v3 of patchset which adds the support for SP805 WDT on FSL LS2080A
> and also adds the missing documentation of SP805 WDT device-tree bindings.

Any comments on this version, or does it seems fine for integration
into the arm-soc tree.

Regards,
Bhupesh

>
> Rebased against arm-soc/next/dt
>
> Changes since v2:
> (v2 can be viewed here: http://permalink.gmane.org/gmane.linux.ports.arm.kernel/463141)
> - Addressed Rob's comments regarding the second mandatory CLK source's
>   (WDOGCLK) name in the bindings.
>
> Changes since v1:
> (v1 can be viewed here: http://www.spinics.net/lists/devicetree/msg102487.html)
>
> - Addressed Rob and Mark's comments regarding the mandatory CLK sources
> - Removed interrupt property from the bindings for now (as discussed
>   with Mark on IRC) till Will's patch proceeds further and enables
>   handling the WDOG interrupts for each core connected to the same PPI
>   line (http://lists.infradead.org/pipermail/linux-arm-kernel/2015-December/391616.html)
>
> Bhupesh Sharma (2):
>   Documentation: DT: Add entry for ARM SP805-WDT
>   dts/ls2080a: Update DTSI to add support of SP805 WDT
>
>  .../devicetree/bindings/watchdog/sp805-wdt.txt     |   29 ++++++++++
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi     |   56 ++++++++++++++++++++
>  2 files changed, 85 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
>
> --
> 1.7.9.5
>

[PATCH v3 1/2] Documentation: DT: Add entry for ARM SP805-WDT

[Rob Herring]

On Tue, Dec 15, 2015 at 08:00:24PM +0530, Bhupesh Sharma wrote:
> This patch adds a devicetree binding documentation for ARM's
> SP805 WatchDog Timer.
> 
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
> ---
>  .../devicetree/bindings/watchdog/sp805-wdt.txt     |   29 ++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt

Acked-by: Rob Herring <robh@kernel.org>

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Bhupesh SHARMA]

Hi Arnd, Olof, Kevin

On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
<bhupesh.sharma@freescale.com> wrote:
> This patch updates the LS2080a DTSI (DTS Include) file to add
> support for eight SP805 Watchdog units which can be used to
> reset the eight Cortex-A57 cores available on LS2080A.
>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56 ++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)

Since Rob has acked the SP805 WDT binding documentation patch (patch
1/2 of this series),
can this DTSI change, please be considered for absorption in the arm-soc tree.

Regards,
Bhupesh

>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> index e81cd48..7b0f411 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
> @@ -193,6 +193,62 @@
>                         interrupts = <0 32 0x4>; /* Level high type */
>                 };
>
> +               cluster1_core0_watchdog: wdt at c000000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc000000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster1_core1_watchdog: wdt at c010000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc010000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster2_core0_watchdog: wdt at c100000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc100000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster2_core1_watchdog: wdt at c110000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc110000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster3_core0_watchdog: wdt at c200000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc200000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster3_core1_watchdog: wdt at c210000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc210000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster4_core0_watchdog: wdt at c300000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc300000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
> +               cluster4_core1_watchdog: wdt at c310000 {
> +                       compatible = "arm,sp805-wdt", "arm,primecell";
> +                       reg = <0x0 0xc310000 0x0 0x1000>;
> +                       clocks = <&clockgen 4 3>, <&clockgen 4 3>;
> +                       clock-names = "apb_pclk", "wdog_clk";
> +               };
> +
>                 fsl_mc: fsl-mc at 80c000000 {
>                         compatible = "fsl,qoriq-mc";
>                         reg = <0x00000008 0x0c000000 0 0x40>,    /* MC portal base */
> --
> 1.7.9.5
>
>

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Arnd Bergmann]

On Wednesday 23 December 2015, Bhupesh SHARMA wrote:
> 
> Hi Arnd, Olof, Kevin
> 
> On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
> <bhupesh.sharma@freescale.com> wrote:
> > This patch updates the LS2080a DTSI (DTS Include) file to add
> > support for eight SP805 Watchdog units which can be used to
> > reset the eight Cortex-A57 cores available on LS2080A.
> >
> > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
> > ---
> >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56 ++++++++++++++++++++++++
> >  1 file changed, 56 insertions(+)
> 
> Since Rob has acked the SP805 WDT binding documentation patch (patch
> 1/2 of this series),
> can this DTSI change, please be considered for absorption in the arm-soc tree.

Sure, please submit it for inclusion. Who is the maintainer for
arch/arm64/boot/dts/freescale/ ? Can they pick up all the freescale related
dts changes and submit them as a pull request? Should they go through
Shawn's tree maybe?

	Arnd

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Sharma Bhupesh]

> -----Original Message-----
> From: Arnd Bergmann [mailto:arnd at arndb.de]
> Sent: Thursday, December 24, 2015 3:49 PM
> To: Bhupesh SHARMA
> Cc: Sharma Bhupesh-B45370; Mark Rutland; linux-arm-
> kernel at lists.infradead.org; Olof Johansson; devicetree at vger.kernel.org;
> Rob Herring; Will Deacon; Catalin Marinas; Li Yang-Leo-R58472; Wood
> Scott-B07421; Yoder Stuart-B08248; shawn.guo at linaro.org
> Subject: Re: [PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of
> SP805 WDT
> 
> On Wednesday 23 December 2015, Bhupesh SHARMA wrote:
> >
> > Hi Arnd, Olof, Kevin
> >
> > On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
> > <bhupesh.sharma@freescale.com> wrote:
> > > This patch updates the LS2080a DTSI (DTS Include) file to add
> > > support for eight SP805 Watchdog units which can be used to reset
> > > the eight Cortex-A57 cores available on LS2080A.
> > >
> > > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
> > > ---
> > >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56
> ++++++++++++++++++++++++
> > >  1 file changed, 56 insertions(+)
> >
> > Since Rob has acked the SP805 WDT binding documentation patch (patch
> > 1/2 of this series),
> > can this DTSI change, please be considered for absorption in the arm-
> soc tree.
> 
> Sure, please submit it for inclusion. Who is the maintainer for
> arch/arm64/boot/dts/freescale/ ? Can they pick up all the freescale
> related dts changes and submit them as a pull request? Should they go
> through Shawn's tree maybe?

Thanks Arnd. For now, may-be I can send this patchset with Rob's Acked-by added
for 1/2 to 'arm at kernel.org'. So that this can be picked by via the arm-soc tree.
Shawn, I hope it's ok with you.

In the meanwhile, I will discuss internally as to how we can have in place a freescale maintainer,
who can submit the pull requests to the 'arm-soc' tree.

Regards,
Bhupesh

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Shawn Guo]

On Thu, Dec 24, 2015 at 08:41:54PM +0000, Sharma Bhupesh wrote:
> 
> 
> > -----Original Message-----
> > From: Arnd Bergmann [mailto:arnd at arndb.de]
> > Sent: Thursday, December 24, 2015 3:49 PM
> > To: Bhupesh SHARMA
> > Cc: Sharma Bhupesh-B45370; Mark Rutland; linux-arm-
> > kernel at lists.infradead.org; Olof Johansson; devicetree at vger.kernel.org;
> > Rob Herring; Will Deacon; Catalin Marinas; Li Yang-Leo-R58472; Wood
> > Scott-B07421; Yoder Stuart-B08248; shawn.guo at linaro.org
> > Subject: Re: [PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of
> > SP805 WDT
> > 
> > On Wednesday 23 December 2015, Bhupesh SHARMA wrote:
> > >
> > > Hi Arnd, Olof, Kevin
> > >
> > > On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
> > > <bhupesh.sharma@freescale.com> wrote:
> > > > This patch updates the LS2080a DTSI (DTS Include) file to add
> > > > support for eight SP805 Watchdog units which can be used to reset
> > > > the eight Cortex-A57 cores available on LS2080A.
> > > >
> > > > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
> > > > ---
> > > >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56
> > ++++++++++++++++++++++++
> > > >  1 file changed, 56 insertions(+)
> > >
> > > Since Rob has acked the SP805 WDT binding documentation patch (patch
> > > 1/2 of this series),
> > > can this DTSI change, please be considered for absorption in the arm-
> > soc tree.
> > 
> > Sure, please submit it for inclusion. Who is the maintainer for
> > arch/arm64/boot/dts/freescale/ ? Can they pick up all the freescale
> > related dts changes and submit them as a pull request? Should they go
> > through Shawn's tree maybe?
> 
> Thanks Arnd. For now, may-be I can send this patchset with Rob's Acked-by added
> for 1/2 to 'arm at kernel.org'. So that this can be picked by via the arm-soc tree.
> Shawn, I hope it's ok with you.

Yeah.  I'm maintaining a git tree, collecting all Freescale arm32
platform patches, and sending them to arm-soc for each merge window.
If I can be copied on those arm64 patches, I do not mind handling them
together with arm32 ones.

Shawn

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Bhupesh SHARMA]

On Fri, Dec 25, 2015 at 7:26 AM, Shawn Guo <shawnguo@kernel.org> wrote:
> On Thu, Dec 24, 2015 at 08:41:54PM +0000, Sharma Bhupesh wrote:
>>
>>
>> > -----Original Message-----
>> > From: Arnd Bergmann [mailto:arnd at arndb.de]
>> > Sent: Thursday, December 24, 2015 3:49 PM
>> > To: Bhupesh SHARMA
>> > Cc: Sharma Bhupesh-B45370; Mark Rutland; linux-arm-
>> > kernel at lists.infradead.org; Olof Johansson; devicetree at vger.kernel.org;
>> > Rob Herring; Will Deacon; Catalin Marinas; Li Yang-Leo-R58472; Wood
>> > Scott-B07421; Yoder Stuart-B08248; shawn.guo at linaro.org
>> > Subject: Re: [PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of
>> > SP805 WDT
>> >
>> > On Wednesday 23 December 2015, Bhupesh SHARMA wrote:
>> > >
>> > > Hi Arnd, Olof, Kevin
>> > >
>> > > On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
>> > > <bhupesh.sharma@freescale.com> wrote:
>> > > > This patch updates the LS2080a DTSI (DTS Include) file to add
>> > > > support for eight SP805 Watchdog units which can be used to reset
>> > > > the eight Cortex-A57 cores available on LS2080A.
>> > > >
>> > > > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
>> > > > ---
>> > > >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56
>> > ++++++++++++++++++++++++
>> > > >  1 file changed, 56 insertions(+)
>> > >
>> > > Since Rob has acked the SP805 WDT binding documentation patch (patch
>> > > 1/2 of this series),
>> > > can this DTSI change, please be considered for absorption in the arm-
>> > soc tree.
>> >
>> > Sure, please submit it for inclusion. Who is the maintainer for
>> > arch/arm64/boot/dts/freescale/ ? Can they pick up all the freescale
>> > related dts changes and submit them as a pull request? Should they go
>> > through Shawn's tree maybe?
>>
>> Thanks Arnd. For now, may-be I can send this patchset with Rob's Acked-by added
>> for 1/2 to 'arm at kernel.org'. So that this can be picked by via the arm-soc tree.
>> Shawn, I hope it's ok with you.
>
> Yeah.  I'm maintaining a git tree, collecting all Freescale arm32
> platform patches, and sending them to arm-soc for each merge window.
> If I can be copied on those arm64 patches, I do not mind handling them
> together with arm32 ones.

Thanks Shawn. Sure, I will make sure to remember the same for future
arm64 patches.

Regards,
Bhupesh

[PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of SP805 WDT

[Li Yang]

On Fri, Dec 25, 2015 at 9:56 AM, Shawn Guo <shawnguo@kernel.org> wrote:
> On Thu, Dec 24, 2015 at 08:41:54PM +0000, Sharma Bhupesh wrote:
>>
>>
>> > -----Original Message-----
>> > From: Arnd Bergmann [mailto:arnd at arndb.de]
>> > Sent: Thursday, December 24, 2015 3:49 PM
>> > To: Bhupesh SHARMA
>> > Cc: Sharma Bhupesh-B45370; Mark Rutland; linux-arm-
>> > kernel at lists.infradead.org; Olof Johansson; devicetree at vger.kernel.org;
>> > Rob Herring; Will Deacon; Catalin Marinas; Li Yang-Leo-R58472; Wood
>> > Scott-B07421; Yoder Stuart-B08248; shawn.guo at linaro.org
>> > Subject: Re: [PATCH v3 2/2] dts/ls2080a: Update DTSI to add support of
>> > SP805 WDT
>> >
>> > On Wednesday 23 December 2015, Bhupesh SHARMA wrote:
>> > >
>> > > Hi Arnd, Olof, Kevin
>> > >
>> > > On Tue, Dec 15, 2015 at 8:00 PM, Bhupesh Sharma
>> > > <bhupesh.sharma@freescale.com> wrote:
>> > > > This patch updates the LS2080a DTSI (DTS Include) file to add
>> > > > support for eight SP805 Watchdog units which can be used to reset
>> > > > the eight Cortex-A57 cores available on LS2080A.
>> > > >
>> > > > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
>> > > > ---
>> > > >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi |   56
>> > ++++++++++++++++++++++++
>> > > >  1 file changed, 56 insertions(+)
>> > >
>> > > Since Rob has acked the SP805 WDT binding documentation patch (patch
>> > > 1/2 of this series),
>> > > can this DTSI change, please be considered for absorption in the arm-
>> > soc tree.
>> >
>> > Sure, please submit it for inclusion. Who is the maintainer for
>> > arch/arm64/boot/dts/freescale/ ? Can they pick up all the freescale
>> > related dts changes and submit them as a pull request? Should they go
>> > through Shawn's tree maybe?
>>
>> Thanks Arnd. For now, may-be I can send this patchset with Rob's Acked-by added
>> for 1/2 to 'arm at kernel.org'. So that this can be picked by via the arm-soc tree.
>> Shawn, I hope it's ok with you.
>
> Yeah.  I'm maintaining a git tree, collecting all Freescale arm32
> platform patches, and sending them to arm-soc for each merge window.
> If I can be copied on those arm64 patches, I do not mind handling them
> together with arm32 ones.

Shawn,  Thanks a lot for offering to help.

Sorry for a very delayed response as I was on vacation.  I have
recently been made responsible by the company to push and track the
upstreaming of all armv8 related software within the Digital
Networking group of FSL/NXP which is currently the only business unit
to use ARMv8 cores.  We also agreed in an internal discussion that it
will be good for me to also help organize patches for upstream
acceptance.  I think I can help to make it more effective in
communicating community requirements and feedback to all related
developers and their management.  And I can also help to enable the
internal test team to better test the staging patches before they hit
the mainline.

Regards,
Leo