linux-kernel - [PATCH v2 7/9] ARM64: dts: meson-gxbb: p20x: enable sdcard UHS modes

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Message-Id: <20170821160637.22456-8-jbrunet@baylibre.com>
Date:   Mon, 21 Aug 2017 18:06:35 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 7/9] ARM64: dts: meson-gxbb: p20x: enable sdcard UHS modes

Enable sdcard UHS modes, up to SDR50, on p20x based boards.
While the s905 supports SDR104 mode, it appears that the PCB of p20x
based boards can't cope with a rate as high as 200Mhz.

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
index 99c409d1c8f8..d5dad8fa4993 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
@@ -219,6 +219,9 @@
 
 	bus-width = <4>;
 	cap-sd-highspeed;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
 	max-frequency = <100000000>;
 	disable-wp;
 
-- 
2.9.5