* [PATCH] ARM: dts: stm32: lxa-mc1: enable DDR50 mode on eMMC
@ 2020-08-28 13:00 Holger Assmann
2020-09-23 15:31 ` Alexandre Torgue
0 siblings, 1 reply; 2+ messages in thread
From: Holger Assmann @ 2020-08-28 13:00 UTC (permalink / raw)
To: Rob Herring, Maxime Coquelin, Alexandre Torgue
Cc: Ahmad Fatoum, Holger Assmann, devicetree, linux-stm32,
linux-arm-kernel, linux-kernel
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
The "eMMC high-speed DDR mode (3.3V I/O)" at 50MHz is supported on
the eMMC-interface of the lxa-mc1. Set it in the device tree to
benefit from the speed improvement.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Holger Assmann <h.assmann@pengutronix.de>
---
arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
index b85025d00943..1e5333fd437f 100644
--- a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
@@ -212,6 +212,7 @@
pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_b>;
pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_b>;
bus-width = <8>;
+ mmc-ddr-3_3v;
no-1-8-v;
no-sd;
no-sdio;
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: stm32: lxa-mc1: enable DDR50 mode on eMMC
2020-08-28 13:00 [PATCH] ARM: dts: stm32: lxa-mc1: enable DDR50 mode on eMMC Holger Assmann
@ 2020-09-23 15:31 ` Alexandre Torgue
0 siblings, 0 replies; 2+ messages in thread
From: Alexandre Torgue @ 2020-09-23 15:31 UTC (permalink / raw)
To: Holger Assmann, Rob Herring, Maxime Coquelin
Cc: Ahmad Fatoum, devicetree, linux-stm32, linux-arm-kernel, linux-kernel
Hi
On 8/28/20 3:00 PM, Holger Assmann wrote:
> From: Ahmad Fatoum <a.fatoum@pengutronix.de>
>
> The "eMMC high-speed DDR mode (3.3V I/O)" at 50MHz is supported on
> the eMMC-interface of the lxa-mc1. Set it in the device tree to
> benefit from the speed improvement.
>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> Signed-off-by: Holger Assmann <h.assmann@pengutronix.de>
> ---
> arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> index b85025d00943..1e5333fd437f 100644
> --- a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> @@ -212,6 +212,7 @@
> pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_b>;
> pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_b>;
> bus-width = <8>;
> + mmc-ddr-3_3v;
> no-1-8-v;
> no-sd;
> no-sdio;
>
Applied on stm32-next.
Thanks.
Alex
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-09-23 15:31 ` Alexandre Torgue
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