diff mbox

[v8,3/3] ARM: dts: imx6q-evi: support cyclone-ps-spi

Message ID c429cec34a880c0d5438091f436a5946a4db3fc0.1485211400.git.stillcompiling@gmail.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Joshua Clayton Jan. 23, 2017, 10:51 p.m. UTC
Add support for Altera cyclone V FPGA connected to an spi port
to the evi devicetree file

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
---
 arch/arm/boot/dts/imx6q-evi.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Fabio Estevam Jan. 24, 2017, midnight UTC | #1
On Mon, Jan 23, 2017 at 8:51 PM, Joshua Clayton
<stillcompiling@gmail.com> wrote:
> Add support for Altera cyclone V FPGA connected to an spi port
> to the evi devicetree file
>
> Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
> ---
>  arch/arm/boot/dts/imx6q-evi.dts | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
> index 24fe093..a0cbb2d 100644
> --- a/arch/arm/boot/dts/imx6q-evi.dts
> +++ b/arch/arm/boot/dts/imx6q-evi.dts
> @@ -82,6 +82,15 @@
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1cs>;
>         status = "okay";
> +
> +       fpga_spi: cyclonespi@0 {
> +               compatible = "altr,fpga-passive-serial";
> +               spi-max-frequency = <20000000>;
> +               reg = <0>;
> +               pinctrl-0 = <&pinctrl_fpgaspi>;
> +               nconfig-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
> +               nstat-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;

Your binding doc says that 'confd-gpios ' is a required property, but
you did not put it here.

Either it is missing here or you should mention that it is optional in
the binding doc.
--
To unsubscribe from this list: send the line "unsubscribe linux-fpga" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Joshua Clayton Jan. 24, 2017, 12:38 a.m. UTC | #2
On 01/23/2017 04:00 PM, Fabio Estevam wrote:
> On Mon, Jan 23, 2017 at 8:51 PM, Joshua Clayton
> <stillcompiling@gmail.com> wrote:
>> Add support for Altera cyclone V FPGA connected to an spi port
>> to the evi devicetree file
>>
>> Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
>> ---
>>  arch/arm/boot/dts/imx6q-evi.dts | 16 ++++++++++++++++
>>  1 file changed, 16 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
>> index 24fe093..a0cbb2d 100644
>> --- a/arch/arm/boot/dts/imx6q-evi.dts
>> +++ b/arch/arm/boot/dts/imx6q-evi.dts
>> @@ -82,6 +82,15 @@
>>         pinctrl-names = "default";
>>         pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1cs>;
>>         status = "okay";
>> +
>> +       fpga_spi: cyclonespi@0 {
>> +               compatible = "altr,fpga-passive-serial";
>> +               spi-max-frequency = <20000000>;
>> +               reg = <0>;
>> +               pinctrl-0 = <&pinctrl_fpgaspi>;
>> +               nconfig-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
>> +               nstat-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
> Your binding doc says that 'confd-gpios ' is a required property, but
> you did not put it here.
>
> Either it is missing here or you should mention that it is optional in
> the binding doc.
You're right, Fabio.
The barebox driver from which I stole the binding had a confd and no nstat.
I've got an nstat and no confd.
One or the other is needed to know whether the bitstream was loaded.

I can add support for using the confd, but with no way to test it, I forebear.

I guess they should both be optional and a note placed that this driver
currently uses only the nstat.

Will change the doc to reflect that.
--
To unsubscribe from this list: send the line "unsubscribe linux-fpga" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
index 24fe093..a0cbb2d 100644
--- a/arch/arm/boot/dts/imx6q-evi.dts
+++ b/arch/arm/boot/dts/imx6q-evi.dts
@@ -82,6 +82,15 @@ 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1cs>;
 	status = "okay";
+
+	fpga_spi: cyclonespi@0 {
+		compatible = "altr,fpga-passive-serial";
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+		pinctrl-0 = <&pinctrl_fpgaspi>;
+		nconfig-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+		nstat-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
+	};
 };
 
 &ecspi3 {
@@ -313,6 +322,13 @@ 
 		>;
 	};
 
+	pinctrl_fpgaspi: fpgaspigrp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_ROW1__GPIO4_IO09 0x1b0b0
+			MX6QDL_PAD_KEY_ROW2__GPIO4_IO11 0x1b0b0
+		>;
+	};
+
 	pinctrl_gpminand: gpminandgrp {
 		fsl,pins = <
 			MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1