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

Andrew Davis
2025-09-09T08:06:31Z

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>;
> +};