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From: guodong.xu@linaro.org (Guodong Xu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: dts: hi6220: add sd-uhs- properties into dwmmc_1
Date: Wed, 31 Aug 2016 21:10:58 +0800	[thread overview]
Message-ID: <1472649058-22364-1-git-send-email-guodong.xu@linaro.org> (raw)

With these properties added, sd cards inserted into hikey can work at UHS
mode if they have such capability.

Note, this depends on HiKey UHS-SD support patch [1] to work properly.
If you didn't add this patch, but added sd-uhs- properties into dwmmc_1,
then sd cards cannot work. As of this post, patch [1] has been integrated
into maintainer's next branch [2].

[1]: [V4] mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey,
 https://patchwork.kernel.org/patch/9262515/
[2]: https://git.linaro.org/people/ulf.hansson/mmc.git next
 commit a8a5b2909cfc ("mmc: dw_mmc: k3: UHS-SD card for Hisilicon Hikey")

cc: Ulf Hansson <ulf.hansson@linaro.org>
cc: Jaehoon Chung <jh80.chung@samsung.com>
cc: Jinguojun <kid.jin@hisilicon.com>
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 63608e9..17839db 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -785,6 +785,9 @@
 			card-detect-delay = <200>;
 			hisilicon,peripheral-syscon = <&ao_ctrl>;
 			cap-sd-highspeed;
+			sd-uhs-sdr12;
+			sd-uhs-sdr25;
+			sd-uhs-sdr50;
 			reg = <0x0 0xf723e000 0x0 0x1000>;
 			interrupts = <0x0 0x49 0x4>;
 			#address-cells = <0x1>;
-- 
1.9.1

             reply	other threads:[~2016-08-31 13:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-31 13:10 Guodong Xu [this message]
2016-09-02 10:21 ` [PATCH] arm64: dts: hi6220: add sd-uhs- properties into dwmmc_1 Wei Xu

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