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Message-ID: <b8598c92-b511-4e83-ac21-717ffc915d31@ti.com>
Date: Tue, 8 Oct 2024 16:42:01 +0530
From: Bhavya Kapoor <b-kapoor@...com>
To: Judith Mendez <jm@...com>, Vignesh Raghavendra <vigneshr@...com>,
Nishanth
Menon <nm@...com>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62-main: Update otap/itap values
Looks good to me !
On 25/09/24 01:23, Judith Mendez wrote:
> Update itap/itap values according to device datasheet [0].
>
> Now that we have fixed timing issues for am62x [1], lets
> change the otap/itap values back according to the device
> datasheet.
>
> [0] https://www.ti.com/lit/ds/symlink/am625.pdf
> [1] https://lore.kernel.org/linux-mmc/20240913185403.1339115-1-jm@ti.com/
>
> Signed-off-by: Judith Mendez <jm@...com>
Reviewed-by: Bhavya Kapoor<b-kapoor@...com>
> ---
> arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 47 ++++++++++++------------
> 1 file changed, 23 insertions(+), 24 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> index 5b92aef5b284..7194603fd3bc 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> @@ -561,10 +561,9 @@ sdhci0: mmc@...0000 {
> ti,clkbuf-sel = <0x7>;
> ti,otap-del-sel-legacy = <0x0>;
> ti,otap-del-sel-mmc-hs = <0x0>;
> - ti,otap-del-sel-ddr52 = <0x5>;
> - ti,otap-del-sel-hs200 = <0x5>;
> - ti,itap-del-sel-legacy = <0xa>;
> - ti,itap-del-sel-mmc-hs = <0x1>;
> + ti,otap-del-sel-hs200 = <0x6>;
> + ti,itap-del-sel-legacy = <0x0>;
> + ti,itap-del-sel-mmc-hs = <0x0>;
> status = "disabled";
> };
>
> @@ -577,17 +576,17 @@ sdhci1: mmc@...0000 {
> clock-names = "clk_ahb", "clk_xin";
> bus-width = <4>;
> ti,clkbuf-sel = <0x7>;
> - ti,otap-del-sel-legacy = <0x8>;
> + ti,otap-del-sel-legacy = <0x0>;
> ti,otap-del-sel-sd-hs = <0x0>;
> - ti,otap-del-sel-sdr12 = <0x0>;
> - ti,otap-del-sel-sdr25 = <0x0>;
> - ti,otap-del-sel-sdr50 = <0x8>;
> - ti,otap-del-sel-sdr104 = <0x7>;
> - ti,otap-del-sel-ddr50 = <0x4>;
> - ti,itap-del-sel-legacy = <0xa>;
> - ti,itap-del-sel-sd-hs = <0x1>;
> - ti,itap-del-sel-sdr12 = <0xa>;
> - ti,itap-del-sel-sdr25 = <0x1>;
> + ti,otap-del-sel-sdr12 = <0xf>;
> + ti,otap-del-sel-sdr25 = <0xf>;
> + ti,otap-del-sel-sdr50 = <0xc>;
> + ti,otap-del-sel-sdr104 = <0x6>;
> + ti,otap-del-sel-ddr50 = <0x9>;
> + ti,itap-del-sel-legacy = <0x0>;
> + ti,itap-del-sel-sd-hs = <0x0>;
> + ti,itap-del-sel-sdr12 = <0x0>;
> + ti,itap-del-sel-sdr25 = <0x0>;
> status = "disabled";
> };
>
> @@ -600,17 +599,17 @@ sdhci2: mmc@...0000 {
> clock-names = "clk_ahb", "clk_xin";
> bus-width = <4>;
> ti,clkbuf-sel = <0x7>;
> - ti,otap-del-sel-legacy = <0x8>;
> + ti,otap-del-sel-legacy = <0x0>;
> ti,otap-del-sel-sd-hs = <0x0>;
> - ti,otap-del-sel-sdr12 = <0x0>;
> - ti,otap-del-sel-sdr25 = <0x0>;
> - ti,otap-del-sel-sdr50 = <0x8>;
> - ti,otap-del-sel-sdr104 = <0x7>;
> - ti,otap-del-sel-ddr50 = <0x8>;
> - ti,itap-del-sel-legacy = <0xa>;
> - ti,itap-del-sel-sd-hs = <0xa>;
> - ti,itap-del-sel-sdr12 = <0xa>;
> - ti,itap-del-sel-sdr25 = <0x1>;
> + ti,otap-del-sel-sdr12 = <0xf>;
> + ti,otap-del-sel-sdr25 = <0xf>;
> + ti,otap-del-sel-sdr50 = <0xc>;
> + ti,otap-del-sel-sdr104 = <0x6>;
> + ti,otap-del-sel-ddr50 = <0x9>;
> + ti,itap-del-sel-legacy = <0x0>;
> + ti,itap-del-sel-sd-hs = <0x0>;
> + ti,itap-del-sel-sdr12 = <0x0>;
> + ti,itap-del-sel-sdr25 = <0x0>;
> status = "disabled";
> };
>
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