arm64: dts: ti: k3-am62d2-evm: Remove unused ospi0 chip select pins

[PATCH] arm64: dts: ti: k3-am62d2-evm: Remove unused ospi0 chip select pins

Posted by Paresh Bhagat 3 months, 1 week ago

Since only a single flash device is connected to ospi0 retain only the
OSPI0_CSn0 pin configuration and remove the unused CSn1-CSn3 pins from
the default pinctrl. This simplifies the ospi0 pin configuration without
affecting functionality.

Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
---
Boot logs
https://gist.github.com/paresh-bhagat12/ac3b7e8a39f6f35004d9c51c6384f0c4

Datasheet - https://www.ti.com/lit/ug/sprujd4/sprujd4.pdf
Schematics - https://www.ti.com/lit/zip/sprcal5

 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
index 83af889e790a..bb5af52ae8b7 100644
--- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
@@ -355,9 +355,6 @@ ospi0_pins_default: ospi0-default-pins {
 		pinctrl-single,pins = <
 			AM62DX_IOPAD(0x0000, PIN_OUTPUT, 0) /* (L22) OSPI0_CLK */
 			AM62DX_IOPAD(0x002c, PIN_OUTPUT, 0) /* (H21) OSPI0_CSn0 */
-			AM62DX_IOPAD(0x0030, PIN_OUTPUT, 0) /* (G19) OSPI0_CSn1 */
-			AM62DX_IOPAD(0x0034, PIN_OUTPUT, 0) /* (K20) OSPI0_CSn2 */
-			AM62DX_IOPAD(0x0038, PIN_OUTPUT, 0) /* (G20) OSPI0_CSn3 */
 			AM62DX_IOPAD(0x000c, PIN_INPUT, 0) /* (J21) OSPI0_D0 */
 			AM62DX_IOPAD(0x0010, PIN_INPUT, 0) /* (J18) OSPI0_D1 */
 			AM62DX_IOPAD(0x0014, PIN_INPUT, 0) /* (J19) OSPI0_D2 */
-- 
2.34.1

Re: [PATCH] arm64: dts: ti: k3-am62d2-evm: Remove unused ospi0 chip select pins

Posted by Vignesh Raghavendra 3 months, 1 week ago

Hi Paresh Bhagat,

On Wed, 29 Oct 2025 08:51:44 +0530, Paresh Bhagat wrote:
> Since only a single flash device is connected to ospi0 retain only the
> OSPI0_CSn0 pin configuration and remove the unused CSn1-CSn3 pins from
> the default pinctrl. This simplifies the ospi0 pin configuration without
> affecting functionality.
> 
> 

I have applied the following to branch ti-next on [1].
Thank you!

[1/1] arm64: dts: ti: k3-am62d2-evm: Remove unused ospi0 chip select pins
      commit: da84d094ded6e332c88c67218faabfbf8d3d59e5

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh

Re: [PATCH] arm64: dts: ti: k3-am62d2-evm: Remove unused ospi0 chip select pins

Posted by Andrew Davis 3 months, 1 week ago

On 10/28/25 10:21 PM, Paresh Bhagat wrote:
> Since only a single flash device is connected to ospi0 retain only the
> OSPI0_CSn0 pin configuration and remove the unused CSn1-CSn3 pins from
> the default pinctrl. This simplifies the ospi0 pin configuration without
> affecting functionality.
> 
> Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
> ---

Reviewed-by: Andrew Davis <afd@ti.com>

> Boot logs
> https://gist.github.com/paresh-bhagat12/ac3b7e8a39f6f35004d9c51c6384f0c4
> 
> Datasheet - https://www.ti.com/lit/ug/sprujd4/sprujd4.pdf
> Schematics - https://www.ti.com/lit/zip/sprcal5
> 
>   arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 3 ---
>   1 file changed, 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> index 83af889e790a..bb5af52ae8b7 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
> @@ -355,9 +355,6 @@ ospi0_pins_default: ospi0-default-pins {
>   		pinctrl-single,pins = <
>   			AM62DX_IOPAD(0x0000, PIN_OUTPUT, 0) /* (L22) OSPI0_CLK */
>   			AM62DX_IOPAD(0x002c, PIN_OUTPUT, 0) /* (H21) OSPI0_CSn0 */
> -			AM62DX_IOPAD(0x0030, PIN_OUTPUT, 0) /* (G19) OSPI0_CSn1 */
> -			AM62DX_IOPAD(0x0034, PIN_OUTPUT, 0) /* (K20) OSPI0_CSn2 */
> -			AM62DX_IOPAD(0x0038, PIN_OUTPUT, 0) /* (G20) OSPI0_CSn3 */
>   			AM62DX_IOPAD(0x000c, PIN_INPUT, 0) /* (J21) OSPI0_D0 */
>   			AM62DX_IOPAD(0x0010, PIN_INPUT, 0) /* (J18) OSPI0_D1 */
>   			AM62DX_IOPAD(0x0014, PIN_INPUT, 0) /* (J19) OSPI0_D2 */