* [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes
@ 2025-07-28 9:34 Loic Poulain
2025-07-28 12:10 ` Dmitry Baryshkov
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Loic Poulain @ 2025-07-28 9:34 UTC (permalink / raw)
To: andersson, konradybcio
Cc: robh, krzk+dt, linux-arm-msm, devicetree, Loic Poulain
The host controller supports HS200/HS400 and HS400 enhanced strobe mode.
On RB1, this improves Linux eMMC read speed, from ~170MB/s to 300MB/s.
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/qcm2290.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
index f49ac1c1f8a3..72503c1d0532 100644
--- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
@@ -953,6 +953,11 @@ &bimc SLAVE_EBI1 RPM_ALWAYS_TAG>,
qcom,ddr-config = <0x80040868>;
bus-width = <8>;
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+
status = "disabled";
sdhc1_opp_table: opp-table {
--
2.34.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes
2025-07-28 9:34 [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes Loic Poulain
@ 2025-07-28 12:10 ` Dmitry Baryshkov
2025-07-29 9:22 ` Konrad Dybcio
2025-08-12 3:04 ` Bjorn Andersson
2 siblings, 0 replies; 4+ messages in thread
From: Dmitry Baryshkov @ 2025-07-28 12:10 UTC (permalink / raw)
To: Loic Poulain
Cc: andersson, konradybcio, robh, krzk+dt, linux-arm-msm, devicetree
On Mon, Jul 28, 2025 at 11:34:26AM +0200, Loic Poulain wrote:
> The host controller supports HS200/HS400 and HS400 enhanced strobe mode.
> On RB1, this improves Linux eMMC read speed, from ~170MB/s to 300MB/s.
>
> Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
> ---
> arch/arm64/boot/dts/qcom/qcm2290.dtsi | 5 +++++
> 1 file changed, 5 insertions(+)
>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
--
With best wishes
Dmitry
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes
2025-07-28 9:34 [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes Loic Poulain
2025-07-28 12:10 ` Dmitry Baryshkov
@ 2025-07-29 9:22 ` Konrad Dybcio
2025-08-12 3:04 ` Bjorn Andersson
2 siblings, 0 replies; 4+ messages in thread
From: Konrad Dybcio @ 2025-07-29 9:22 UTC (permalink / raw)
To: Loic Poulain, andersson, konradybcio
Cc: robh, krzk+dt, linux-arm-msm, devicetree
On 7/28/25 11:34 AM, Loic Poulain wrote:
> The host controller supports HS200/HS400 and HS400 enhanced strobe mode.
> On RB1, this improves Linux eMMC read speed, from ~170MB/s to 300MB/s.
>
> Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
> ---
> arch/arm64/boot/dts/qcom/qcm2290.dtsi | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> index f49ac1c1f8a3..72503c1d0532 100644
> --- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> @@ -953,6 +953,11 @@ &bimc SLAVE_EBI1 RPM_ALWAYS_TAG>,
> qcom,ddr-config = <0x80040868>;
> bus-width = <8>;
>
> + mmc-ddr-1_8v;
> + mmc-hs200-1_8v;
> + mmc-hs400-1_8v;
> + mmc-hs400-enhanced-strobe;
These were always asked to be deferred to device DTs.. But it
seems like these are indeed controller properties.. I suppose
I'll submit a cleanup
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes
2025-07-28 9:34 [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes Loic Poulain
2025-07-28 12:10 ` Dmitry Baryshkov
2025-07-29 9:22 ` Konrad Dybcio
@ 2025-08-12 3:04 ` Bjorn Andersson
2 siblings, 0 replies; 4+ messages in thread
From: Bjorn Andersson @ 2025-08-12 3:04 UTC (permalink / raw)
To: konradybcio, Loic Poulain; +Cc: robh, krzk+dt, linux-arm-msm, devicetree
On Mon, 28 Jul 2025 11:34:26 +0200, Loic Poulain wrote:
> The host controller supports HS200/HS400 and HS400 enhanced strobe mode.
> On RB1, this improves Linux eMMC read speed, from ~170MB/s to 300MB/s.
>
>
Applied, thanks!
[1/1] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes
commit: 1d363a6cf8a2627f31bc3609a0fa9d85dfb0d9dc
Best regards,
--
Bjorn Andersson <andersson@kernel.org>
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-07-28 9:34 [PATCH] arm64: dts: qcom: qcm2290: Enable HS eMMC timing modes Loic Poulain
2025-07-28 12:10 ` Dmitry Baryshkov
2025-07-29 9:22 ` Konrad Dybcio
2025-08-12 3:04 ` Bjorn Andersson
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