From: Holger Assmann <h.assmann@pengutronix.de>
To: Rob Herring <robh+dt@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>,
Holger Assmann <h.assmann@pengutronix.de>,
devicetree@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ARM: dts: stm32: lxa-mc1: enable DDR50 mode on eMMC
Date: Fri, 28 Aug 2020 15:00:02 +0200 [thread overview]
Message-ID: <20200828130002.1701-1-h.assmann@pengutronix.de> (raw)
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
next reply other threads:[~2020-08-28 13:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 13:00 Holger Assmann [this message]
2020-09-23 15:31 ` [PATCH] ARM: dts: stm32: lxa-mc1: enable DDR50 mode on eMMC Alexandre Torgue
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