Hi Konstantin,
On Wed, Feb 03 2021, kostap@xxxxxxxxxxx wrote:
> From: Konstantin Porotchkin <kostap@xxxxxxxxxxx>
>
> Update the settings for AP806 SDHCI interface according to
> latest Xenon drivers changes.
> - no need to select the PHY slow mode anymore
Why? Has anything changed since the introduction of
marvell,xenon-phy-slow-mode?
baruch
> - recommended to add HS400 support at 1.8V signalling on AP806-B0
> - fix the bus witdth for A8040 DB from 4 to 8 bits.
>
> Signed-off-by: Konstantin Porotchkin <kostap@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/marvell/armada-8040-db.dts | 11 ++++++++++-
> arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi | 5 -----
> arch/arm64/boot/dts/marvell/armada-ap80x.dtsi | 1 -
> 3 files changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-8040-db.dts b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
> index 09fb5256f1db..6362e654a823 100644
> --- a/arch/arm64/boot/dts/marvell/armada-8040-db.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
> @@ -347,7 +347,16 @@
>
> &ap_sdhci0 {
> status = "okay";
> - bus-width = <4>;
> + bus-width = <8>;
> + /* The below property should be added to boards with AP806-B0
> + * for enabling HS400 speed mode. Otherwise the device highest
> + * speed mode will be HS200.
> + * Should not be added to boards with earlier release of AP806
> + * since it will cause SDHCI driver to fail upon initialization.
> + * Reference - HWE-7296210 (errata for releases A0/A1/A2)
> + *
> + * mmc-hs400-1_8v;
> + */
> non-removable;
> };
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
> index 73733b4126e2..69653de998e2 100644
> --- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
> +++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi
> @@ -109,11 +109,6 @@
>
> &ap_sdhci0 {
> bus-width = <8>;
> - /*
> - * Not stable in HS modes - phy needs "more calibration", so add
> - * the "slow-mode" and disable SDR104, SDR50 and DDR50 modes.
> - */
> - marvell,xenon-phy-slow-mode;
> no-1-8-v;
> no-sd;
> no-sdio;
> diff --git a/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi b/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
> index 12e477f1aeb9..edd6131a0587 100644
> --- a/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
> +++ b/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
> @@ -257,7 +257,6 @@
> clock-names = "core";
> clocks = <&ap_clk 4>;
> dma-coherent;
> - marvell,xenon-phy-slow-mode;
> status = "disabled";
> };
--
~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch@xxxxxxxxxx - tel: +972.52.368.4656, http://www.tkos.co.il -
