linux-kernel - [PATCH 2/2] ARM: dts: rockchip: enable sdmmc for rk1108-evb

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Message-Id: <1479024799-29198-2-git-send-email-jacob-chen@iotwrt.com>
Date:   Sun, 13 Nov 2016 16:13:19 +0800
From:   Jacob Chen <jacob-chen@...wrt.com>
To:     heiko@...ech.de
Cc:     andy.yan@...k-chips.com, linux-gpio@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jacob Chen <jacob2.chen@...k-chips.com>
Subject: [PATCH 2/2] ARM: dts: rockchip: enable sdmmc for rk1108-evb

From: Jacob Chen <jacob2.chen@...k-chips.com>

This patch add sdmmc support for rk1108-evb, now I can load the rootfs
from sdmmc.

Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com>
---
 arch/arm/boot/dts/rk1108-evb.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/rk1108-evb.dts b/arch/arm/boot/dts/rk1108-evb.dts
index 3956cff..cea26e5 100644
--- a/arch/arm/boot/dts/rk1108-evb.dts
+++ b/arch/arm/boot/dts/rk1108-evb.dts
@@ -56,6 +56,18 @@
 	};
 };
 
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	card-detect-delay = <200>;
+	disable-wp;
+	num-slots = <1>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
+	status = "okay";
+};
+
 &uart0 {
 	status = "okay";
 };
@@ -67,3 +79,12 @@
 &uart2 {
 	status = "okay";
 };
+
+&pinctrl {
+
+	sdmmc {
+		sdmmc_pwr: sdmmc-pwr {
+			rockchip,pins = <3 RK_PB7 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>;
+		};
+	};
+};
-- 
2.7.4