[v2,5/5] ARM: dts: AM4372: add entry for qspi mmap region
diff mbox

Message ID 1446545174-14193-6-git-send-email-vigneshr@ti.com
State New
Headers show

Commit Message

Vignesh Raghavendra Nov. 3, 2015, 10:06 a.m. UTC
Add qspi memory mapped region entries for AM43xx based SoCs. Also,
update the binding documents for the controller to document this change.

Signed-off-by: Vignesh R <vigneshr@ti.com>
---
 Documentation/devicetree/bindings/spi/ti_qspi.txt | 5 +++--
 arch/arm/boot/dts/am4372.dtsi                     | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

Comments

Rob Herring Nov. 5, 2015, 11:51 p.m. UTC | #1
On Tue, Nov 03, 2015 at 03:36:14PM +0530, Vignesh R wrote:
> Add qspi memory mapped region entries for AM43xx based SoCs. Also,
> update the binding documents for the controller to document this change.
> 
> Signed-off-by: Vignesh R <vigneshr@ti.com>

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

> ---
>  Documentation/devicetree/bindings/spi/ti_qspi.txt | 5 +++--
>  arch/arm/boot/dts/am4372.dtsi                     | 4 +++-
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
> index f05dd631bef1..05488970060b 100644
> --- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
> +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
> @@ -17,9 +17,10 @@ Recommended properties:
>  
>  Example:
>  
> +For am4372:
>  qspi: qspi@4b300000 {
> -	compatible = "ti,dra7xxx-qspi";
> -	reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>;
> +	compatible = "ti,am4372-qspi";
> +	reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
>  	reg-names = "qspi_base", "qspi_mmap";
>  	#address-cells = <1>;
>  	#size-cells = <0>;
> diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
> index 0447c04a40cc..1b2c545f3f2c 100644
> --- a/arch/arm/boot/dts/am4372.dtsi
> +++ b/arch/arm/boot/dts/am4372.dtsi
> @@ -962,7 +962,9 @@
>  
>  		qspi: qspi@47900000 {
>  			compatible = "ti,am4372-qspi";
> -			reg = <0x47900000 0x100>;
> +			reg = <0x47900000 0x100>,
> +			      <0x30000000 0x4000000>;
> +			reg-names = "qspi_base", "qspi_mmap";
>  			#address-cells = <1>;
>  			#size-cells = <0>;
>  			ti,hwmods = "qspi";
> -- 
> 2.6.2
> 
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Felipe Balbi Nov. 6, 2015, 5:14 a.m. UTC | #2
Hi,

Rob Herring <robh@kernel.org> writes:
> On Tue, Nov 03, 2015 at 03:36:14PM +0530, Vignesh R wrote:
>> Add qspi memory mapped region entries for AM43xx based SoCs. Also,
>> update the binding documents for the controller to document this change.
>> 
>> Signed-off-by: Vignesh R <vigneshr@ti.com>
>
> Acked-by: Rob Herring <robh@kernel.org>
>
>> ---
>>  Documentation/devicetree/bindings/spi/ti_qspi.txt | 5 +++--
>>  arch/arm/boot/dts/am4372.dtsi                     | 4 +++-
>>  2 files changed, 6 insertions(+), 3 deletions(-)
>> 
>> diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
>> index f05dd631bef1..05488970060b 100644
>> --- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
>> +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
>> @@ -17,9 +17,10 @@ Recommended properties:
>>  
>>  Example:
>>  
>> +For am4372:
>>  qspi: qspi@4b300000 {
>> -	compatible = "ti,dra7xxx-qspi";
>> -	reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>;
>> +	compatible = "ti,am4372-qspi";
>> +	reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
>>  	reg-names = "qspi_base", "qspi_mmap";
>>  	#address-cells = <1>;
>>  	#size-cells = <0>;

and how does the user for this look like ? Don't you need to give this a
proper 'ranges' binding ?
Vignesh Raghavendra Nov. 6, 2015, 12:21 p.m. UTC | #3
On 11/06/2015 10:44 AM, Felipe Balbi wrote:
> 
> Hi,
> 
> Rob Herring <robh@kernel.org> writes:
>> On Tue, Nov 03, 2015 at 03:36:14PM +0530, Vignesh R wrote:
>>> Add qspi memory mapped region entries for AM43xx based SoCs. Also,
>>> update the binding documents for the controller to document this change.
>>>
>>> Signed-off-by: Vignesh R <vigneshr@ti.com>
>>
>> Acked-by: Rob Herring <robh@kernel.org>
>>
>>> ---
>>>  Documentation/devicetree/bindings/spi/ti_qspi.txt | 5 +++--
>>>  arch/arm/boot/dts/am4372.dtsi                     | 4 +++-
>>>  2 files changed, 6 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
>>> index f05dd631bef1..05488970060b 100644
>>> --- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
>>> +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
>>> @@ -17,9 +17,10 @@ Recommended properties:
>>>  
>>>  Example:
>>>  
>>> +For am4372:
>>>  qspi: qspi@4b300000 {
>>> -	compatible = "ti,dra7xxx-qspi";
>>> -	reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>;
>>> +	compatible = "ti,am4372-qspi";
>>> +	reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
>>>  	reg-names = "qspi_base", "qspi_mmap";
>>>  	#address-cells = <1>;
>>>  	#size-cells = <0>;
> 
> and how does the user for this look like ? Don't you need to give this a
> proper 'ranges' binding ?
> 


There are no other users of qspi_mmap region except ti-qspi driver itself:
In probe:
	res_mmap = platform_get_resource_byname(pdev,
			IORESOURCE_MEM, "qspi_mmap");
	qspi->mmap_base = devm_ioremap_resource(&pdev->dev, res_mmap);

and for reading from mmap region:
	memcpy_fromio(buf, qspi->mmap_base + from, len);

Patch
diff mbox

diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt
index f05dd631bef1..05488970060b 100644
--- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
+++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
@@ -17,9 +17,10 @@  Recommended properties:
 
 Example:
 
+For am4372:
 qspi: qspi@4b300000 {
-	compatible = "ti,dra7xxx-qspi";
-	reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>;
+	compatible = "ti,am4372-qspi";
+	reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
 	reg-names = "qspi_base", "qspi_mmap";
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 0447c04a40cc..1b2c545f3f2c 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -962,7 +962,9 @@ 
 
 		qspi: qspi@47900000 {
 			compatible = "ti,am4372-qspi";
-			reg = <0x47900000 0x100>;
+			reg = <0x47900000 0x100>,
+			      <0x30000000 0x4000000>;
+			reg-names = "qspi_base", "qspi_mmap";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "qspi";