[PATCH v3 0/2] Remove HS400 support from common

[PATCH v3 0/2] Remove HS400 support from common

[Judith Mendez]

Since eMMC HS400 has been descoped for j722s due to errata i2478 [0]
and is supported by default for AM62Px device, remove sdhci0 node from
common-main.dtsi and include instead only for AM62Px in am62p-main.dtsi.

Also, update the STRB value for am62p eMMC sdhci0 node.

Tested on am62p SK board.

[0] https://www.ti.com/lit/pdf/sprz575

Link to v2:
https://lore.kernel.org/linux-devicetree/20250908173831.269039-1-jm@ti.com
Link to v1:
https://lore.kernel.org/linux-arm-kernel/20250904004723.2856005-1-jm@ti.com/

Changes since v2:
- Switch sdhci0: mmc@fa10000 in cbass_main to &sdhci0 at the
  base level

Judith Mendez (2):
  arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common
  arm64: dts: ti: k3-am62p: Update eMMC HS400 STRB value

 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 3 ---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi              | 6 ++++++
 2 files changed, 6 insertions(+), 3 deletions(-)

-- 
2.51.0

[PATCH v3 1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common

[Judith Mendez]

Since eMMC HS400 has been descoped for J722s due to errata i2478 [0]
and is supported for AM62Px device, remove eMMC HS400 support from
common-main.dtsi and include only in am62p-main.dtsi.

[0] https://www.ti.com/lit/pdf/sprz575
Signed-off-by: Judith Mendez <jm@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 3 ---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi              | 6 ++++++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
index 4427b12058a6..0c05bcf1d776 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
@@ -576,15 +576,12 @@ sdhci0: mmc@fa10000 {
 		bus-width = <8>;
 		mmc-ddr-1_8v;
 		mmc-hs200-1_8v;
-		mmc-hs400-1_8v;
 		ti,clkbuf-sel = <0x7>;
-		ti,strobe-sel = <0x77>;
 		ti,trm-icp = <0x8>;
 		ti,otap-del-sel-legacy = <0x1>;
 		ti,otap-del-sel-mmc-hs = <0x1>;
 		ti,otap-del-sel-ddr52 = <0x6>;
 		ti,otap-del-sel-hs200 = <0x8>;
-		ti,otap-del-sel-hs400 = <0x5>;
 		ti,itap-del-sel-legacy = <0x10>;
 		ti,itap-del-sel-mmc-hs = <0xa>;
 		ti,itap-del-sel-ddr52 = <0x3>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
index 6aea9d3f134e..020bd121a6a3 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
@@ -74,3 +74,9 @@ &main_gpio1 {
 	gpio-reserved-ranges = <32 10>;
 	ti,ngpio = <52>;
 };
+
+&sdhci0 {
+	mmc-hs400-1_8v;
+	ti,strobe-sel = <0x77>;
+	ti,otap-del-sel-hs400 = <0x5>;
+};
-- 
2.51.0

Re: [PATCH v3 1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common

[Andrew Davis]

On 9/8/25 6:52 PM, Judith Mendez wrote:
> Since eMMC HS400 has been descoped for J722s due to errata i2478 [0]
> and is supported for AM62Px device, remove eMMC HS400 support from
> common-main.dtsi and include only in am62p-main.dtsi.
> 
> [0] https://www.ti.com/lit/pdf/sprz575
> Signed-off-by: Judith Mendez <jm@ti.com>
> ---

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

>   arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 3 ---
>   arch/arm64/boot/dts/ti/k3-am62p-main.dtsi              | 6 ++++++
>   2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> index 4427b12058a6..0c05bcf1d776 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> @@ -576,15 +576,12 @@ sdhci0: mmc@fa10000 {
>   		bus-width = <8>;
>   		mmc-ddr-1_8v;
>   		mmc-hs200-1_8v;
> -		mmc-hs400-1_8v;
>   		ti,clkbuf-sel = <0x7>;
> -		ti,strobe-sel = <0x77>;
>   		ti,trm-icp = <0x8>;
>   		ti,otap-del-sel-legacy = <0x1>;
>   		ti,otap-del-sel-mmc-hs = <0x1>;
>   		ti,otap-del-sel-ddr52 = <0x6>;
>   		ti,otap-del-sel-hs200 = <0x8>;
> -		ti,otap-del-sel-hs400 = <0x5>;
>   		ti,itap-del-sel-legacy = <0x10>;
>   		ti,itap-del-sel-mmc-hs = <0xa>;
>   		ti,itap-del-sel-ddr52 = <0x3>;
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> index 6aea9d3f134e..020bd121a6a3 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> @@ -74,3 +74,9 @@ &main_gpio1 {
>   	gpio-reserved-ranges = <32 10>;
>   	ti,ngpio = <52>;
>   };
> +
> +&sdhci0 {
> +	mmc-hs400-1_8v;
> +	ti,strobe-sel = <0x77>;
> +	ti,otap-del-sel-hs400 = <0x5>;
> +};

Re: [PATCH v3 1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common

[Moteen Shah]

On 09/09/25 05:22, Judith Mendez wrote:
> Since eMMC HS400 has been descoped for J722s due to errata i2478 [0]
> and is supported for AM62Px device, remove eMMC HS400 support from
> common-main.dtsi and include only in am62p-main.dtsi.
>
> [0] https://www.ti.com/lit/pdf/sprz575
> Signed-off-by: Judith Mendez <jm@ti.com>
> ---
>   arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 3 ---
>   arch/arm64/boot/dts/ti/k3-am62p-main.dtsi              | 6 ++++++
>   2 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> index 4427b12058a6..0c05bcf1d776 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> @@ -576,15 +576,12 @@ sdhci0: mmc@fa10000 {
>   		bus-width = <8>;
>   		mmc-ddr-1_8v;
>   		mmc-hs200-1_8v;
> -		mmc-hs400-1_8v;
>   		ti,clkbuf-sel = <0x7>;
> -		ti,strobe-sel = <0x77>;
>   		ti,trm-icp = <0x8>;
>   		ti,otap-del-sel-legacy = <0x1>;
>   		ti,otap-del-sel-mmc-hs = <0x1>;
>   		ti,otap-del-sel-ddr52 = <0x6>;
>   		ti,otap-del-sel-hs200 = <0x8>;
> -		ti,otap-del-sel-hs400 = <0x5>;
>   		ti,itap-del-sel-legacy = <0x10>;
>   		ti,itap-del-sel-mmc-hs = <0xa>;
>   		ti,itap-del-sel-ddr52 = <0x3>;
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> index 6aea9d3f134e..020bd121a6a3 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> @@ -74,3 +74,9 @@ &main_gpio1 {
>   	gpio-reserved-ranges = <32 10>;
>   	ti,ngpio = <52>;
>   };
> +
> +&sdhci0 {
> +	mmc-hs400-1_8v;
> +	ti,strobe-sel = <0x77>;
> +	ti,otap-del-sel-hs400 = <0x5>;
> +};

Reviewed-by: Moteen Shah <m-shah@ti.com>

Regards,
Moteen

[PATCH v3 2/2] arm64: dts: ti: k3-am62p: Update eMMC HS400 STRB value

[Judith Mendez]

STRB setting for eMMC HS400 have been updated in device datasheet [0],
so update for am62p in k3-am62p-main.

[0] https://www.ti.com/lit/gpn/am62p
Signed-off-by: Judith Mendez <jm@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
index 020bd121a6a3..908cc0760e7d 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
@@ -77,6 +77,6 @@ &main_gpio1 {
 
 &sdhci0 {
 	mmc-hs400-1_8v;
-	ti,strobe-sel = <0x77>;
+	ti,strobe-sel = <0x66>;
 	ti,otap-del-sel-hs400 = <0x5>;
 };
-- 
2.51.0

Re: [PATCH v3 0/2] Remove HS400 support from common

[Nishanth Menon]

Hi Judith Mendez,

On Mon, 08 Sep 2025 18:52:05 -0500, Judith Mendez wrote:
> Since eMMC HS400 has been descoped for j722s due to errata i2478 [0]
> and is supported by default for AM62Px device, remove sdhci0 node from
> common-main.dtsi and include instead only for AM62Px in am62p-main.dtsi.
> 
> Also, update the STRB value for am62p eMMC sdhci0 node.
> 
> Tested on am62p SK board.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common
      commit: 7efc354b7fe1ac5e874d0188b3d6be88a3fa0fe4
[2/2] arm64: dts: ti: k3-am62p: Update eMMC HS400 STRB value
      commit: 9fdcc5f98141cf2f77e8778bee830190d7b71ced

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
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
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