diff mbox

[v6,1/2] Devicetree: Add pl353 smc controller devicetree binding information

Message ID e3a73fa0-9159-4fbe-b042-4737dc9b041f@BN1BFFO11FD010.protection.gbl
State Superseded, archived
Headers show

Commit Message

Punnaiah Choudary Kalluri April 13, 2015, 4:11 p.m. UTC
Add pl353 static memory controller devicetree binding information.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
---
Changes in v6:
 - None
Changes in v5:
 - Removed timing properties
Changes in v4:
 - none
Changes in v3:
 - none
Changes in v2:
 - modified timing binding info as per onfi timing parameters
 - add suffix nano second as timing unit
 - modified the clock names as per the IP spec
---
 .../bindings/memory-controllers/pl353-smc.txt      |   37 ++++++++++++++++++++
 1 files changed, 37 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt

Comments

Josh Cartwright April 23, 2015, 7:50 p.m. UTC | #1
Hey Punnaiah-

A few nitpicks here, in case you'll be spinning up a new version of your
patchset.

On Mon, Apr 13, 2015 at 09:41:51PM +0530, Punnaiah Choudary Kalluri wrote:
> Add pl353 static memory controller devicetree binding information.
>
> Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
[..]
> @@ -0,0 +1,37 @@
> +Device tree bindings for ARM PL353 static memory controller
> +
> +PL353 static memory controller supports two kinds of memory
> +interfaces. i.e NAND and SRAM/NOR interfaces.
> +The actual devices are instantiated from the child nodes of pl353 smc node.
> +
> +Required properties:
> +- compatible		: Should be "arm,pl353-smc-r2p1"
> +- reg			: Controller registers map and length.
> +- clock-names		: List of input clock names - "memclk", "aclk"
> +			  (See clock bindings for details).
> +- clocks		: Clock phandles (see clock bindings for details).

Technically not clock phandles, but clock specifiers.

> +- address-cells	: Address cells, must be 1.
> +- size-cells		: Size cells. Must be 1.

These should have the leading '#' as in '#address-cells' and
'#size-cells'.

  Josh
Punnaiah Choudary Kalluri April 24, 2015, 12:46 a.m. UTC | #2
Hi Josh,

> -----Original Message-----
> From: Josh Cartwright [mailto:joshc@ni.com]
> Sent: Friday, April 24, 2015 1:21 AM
> To: Punnaiah Choudary Kalluri
> Cc: robh+dt@kernel.org; pawel.moll@arm.com; mark.rutland@arm.com;
> ijc+devicetree@hellion.org.uk; galak@codeaurora.org; rob@landley.net;
> Michal Simek; grant.likely@linaro.org; gregkh@linuxfoundation.org;
> jason@lakedaemon.net; ezequiel.garcia@free-electrons.com;
> arnd@arndb.de; dwmw2@infradead.org; computersforpeace@gmail.com;
> artem.bityutskiy@linux.intel.com; jussi.kivilinna@iki.fi;
> acourbot@nvidia.com; ivan.khoronzhuk@ti.com; joern@logfs.org;
> devicetree@vger.kernel.org; linux-doc@vger.kernel.org; linux-
> kernel@vger.kernel.org; linux-mtd@lists.infradead.org; kpc528@gmail.com;
> kalluripunnaiahchoudary@gmail.com; Punnaiah Choudary Kalluri
> Subject: Re: [PATCH v6 1/2] Devicetree: Add pl353 smc controller devicetree
> binding information
> 
> Hey Punnaiah-
> 
> A few nitpicks here, in case you'll be spinning up a new version of your
> patchset.
> 
> On Mon, Apr 13, 2015 at 09:41:51PM +0530, Punnaiah Choudary Kalluri wrote:
> > Add pl353 static memory controller devicetree binding information.
> >
> > Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
> [..]
> > @@ -0,0 +1,37 @@
> > +Device tree bindings for ARM PL353 static memory controller
> > +
> > +PL353 static memory controller supports two kinds of memory
> > +interfaces. i.e NAND and SRAM/NOR interfaces.
> > +The actual devices are instantiated from the child nodes of pl353 smc
> node.
> > +
> > +Required properties:
> > +- compatible		: Should be "arm,pl353-smc-r2p1"
> > +- reg			: Controller registers map and length.
> > +- clock-names		: List of input clock names - "memclk", "aclk"
> > +			  (See clock bindings for details).
> > +- clocks		: Clock phandles (see clock bindings for details).
> 
> Technically not clock phandles, but clock specifiers.
> 
> > +- address-cells	: Address cells, must be 1.
> > +- size-cells		: Size cells. Must be 1.
> 
> These should have the leading '#' as in '#address-cells' and
> '#size-cells'.

Thanks for the review. I will take care of them new version

Regards,
Punnaiah
> 
>   Josh
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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt b/Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt
new file mode 100644
index 0000000..a868f94
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt
@@ -0,0 +1,37 @@ 
+Device tree bindings for ARM PL353 static memory controller
+
+PL353 static memory controller supports two kinds of memory
+interfaces. i.e NAND and SRAM/NOR interfaces.
+The actual devices are instantiated from the child nodes of pl353 smc node.
+
+Required properties:
+- compatible		: Should be "arm,pl353-smc-r2p1"
+- reg			: Controller registers map and length.
+- clock-names		: List of input clock names - "memclk", "aclk"
+			  (See clock bindings for details).
+- clocks		: Clock phandles (see clock bindings for details).
+- address-cells	: Address cells, must be 1.
+- size-cells		: Size cells. Must be 1.
+
+Child nodes:
+ For NAND the "arm,pl353-nand-r2p1" and for NOR the "cfi-flash" drivers are
+supported as child nodes.
+
+for nand partition information please refer the below file
+Documentation/devicetree/bindings/mtd/partition.txt
+
+Example:
+	pl353smcc_0: pl353smcc@e000e000 {
+			compatible = "arm,pl353-smcc-r2p1"
+			clock-names = "memclk", "aclk";
+			clocks = <&clkc 11>, <&clkc 44>;
+			reg = <0xe000e000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			nand_0: nand@e1000000 {
+				compatible = "arm,pl353-nand-r2p1"
+				reg = <0xe1000000 0x1000000>;
+				(...)
+			};
+	};