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From: Stefan Mavrodiev <stefan@olimex.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/Allwinner sunXi SoC support),
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@vger.kernel.org (open list)
Cc: linux-sunxi@googlegroups.com, Stefan Mavrodiev <stefan@olimex.com>
Subject: [PATCH 1/3] arm64: dts: allwinner: a64: olinuxino: Fix eMMC supply regulator
Date: Fri, 29 Nov 2019 11:13:34 +0200	[thread overview]
Message-ID: <20191129091336.13104-2-stefan@olimex.com> (raw)
In-Reply-To: <20191129091336.13104-1-stefan@olimex.com>

A64-OLinuXino-eMMC uses 1.8V for eMMC supply. This is done via a triple
jumper, which sets VCC-PL to either 1.8V or 3.3V. This setting is different
for boards with and without eMMC.

This is not a big issue for DDR52 mode, however the eMMC will not work in
HS200/HS400, since these modes explicitly requires 1.8V.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
index 96ab0227e82d..7d135decbd53 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
@@ -14,8 +14,8 @@
 &mmc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc2_pins>;
-	vmmc-supply = <&reg_dcdc1>;
-	vqmmc-supply = <&reg_dcdc1>;
+	vmmc-supply = <&reg_eldo1>;
+	vqmmc-supply = <&reg_eldo1>;
 	bus-width = <8>;
 	non-removable;
 	cap-mmc-hw-reset;
-- 
2.17.1


       reply	other threads:[~2019-11-29  9:14 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191129091336.13104-1-stefan@olimex.com>
2019-11-29  9:13 ` Stefan Mavrodiev [this message]
2019-11-29  9:26   ` [linux-sunxi] " Chen-Yu Tsai
2019-11-29  9:49     ` Stefan Mavrodiev
2019-11-29  9:13 ` [PATCH 2/3] arm64: dts: allwinner: a64: olinuxino: Add bank supply regulators Stefan Mavrodiev
2019-11-29  9:13 ` [PATCH 3/3] arm64: dts: allwinner: a64: olinuxino: Fix SDIO supply regulator Stefan Mavrodiev

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