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From: "Leonidas P. Papadakos" <papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"Leonidas P. Papadakos"
	<papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH v2] arm64: dts: rockchip: eMMC additions for rk3328-roc-cc
Date: Thu,  4 Apr 2019 14:23:29 +0300	[thread overview]
Message-ID: <20190404112329.8157-1-papadakospan@gmail.com> (raw)

The eMMC 5.x that Libre Computer provide for their boards supports HS200 mode.
The support is already included in the dts for their newest board:

La Frite (AML-S805X-AC)
dts: arch/arm64/boot/dts/amlogic/meson-gxl-s805x-libretech-ac.dts

That same eMMC is supported in the ROC-RK3328-CC:
https://www.loverpi.com/products/libre-computer-board-emmc-5-x-module

This increases the speed of the eMMC significantly.

Signed-off-by: Leonidas P. Papadakos <papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
Changes since v1:
- disable-wp isn't needed.
- limit max_frequency to 150MHz for rk3328

 arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
index c213ad74d..db3246995 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -122,6 +122,9 @@
 &emmc {
 	bus-width = <8>;
 	cap-mmc-highspeed;
+	max-frequency = <150000000>;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
 	non-removable;
 	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
-- 
2.21.0

             reply	other threads:[~2019-04-04 11:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-04 11:23 Leonidas P. Papadakos [this message]
     [not found] ` <20190404112329.8157-1-papadakospan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-04-04 12:40   ` [PATCH v2] arm64: dts: rockchip: eMMC additions for rk3328-roc-cc Leonidas P. Papadakos
     [not found]     ` <1554381609.12893.0-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-04-11 12:10       ` Heiko Stuebner
2019-04-11 15:46         ` Leonidas P. Papadakos

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