linux-kernel - [PATCH 2/5] ARM: dts: Enable emmc and sdmmc on the rk3288-evb boards

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Message-Id: <1406665916-23396-3-git-send-email-dianders@chromium.org>
Date:	Tue, 29 Jul 2014 13:31:53 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Heiko Stuebner <heiko@...ech.de>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Addy Ke <addy.ke@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
	Doug Anderson <dianders@...omium.org>, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	linux@....linux.org.uk, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] ARM: dts: Enable emmc and sdmmc on the rk3288-evb boards

This adds support for the sdmmc and emmc ports on the rk3288 using the
currently posted driver from Addy at:
  https://patchwork.kernel.org/patch/4520631/

This enables basic SD and eMMC support.  Things are not yet running at
the fastest speed and we don't have the regulators specified, but we
can at least use the eMMC and SD cards now.

A few notes:
* Doesn't enable DDR mode from eMMC since it didn't work on Addy's
  patch.  A future patch enables it.
* This is not baesd on Jaehoon's patch series removing the slot node,
  but it does use new syntax like putting the bus width at the top
  level and using the new cap-mmc-highspeed / cap-sd-highspeed.  A
  future patch will modify this one to remove the slot node.

Signed-off-by: Doug Anderson <dianders@...omium.org>
---
 arch/arm/boot/dts/rk3288-evb.dtsi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 749e20d..e44e34f 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -37,6 +37,38 @@
 	};
 };
 
+&emmc {
+	broken-cd;
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	non-removable;
+	num-slots = <1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
+	status = "okay";
+
+	slot@0 {
+		reg = <0>;
+		disable-wp;
+	};
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	card-detect-delay = <200>;
+	num-slots = <1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+	status = "okay";
+
+	slot@0 {
+		reg = <0>;
+		disable-wp;		/* wp not hooked up */
+	};
+};
+
 &i2c0 {
 	status = "okay";
 };
-- 
2.0.0.526.g5318336

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