diff mbox

[4/4] ARM: dts: rskrza1: add mmc DT support

Message ID 20160915193405.26943-5-chris.brandt@renesas.com (mailing list archive)
State Deferred
Delegated to: Simon Horman
Headers show

Commit Message

Chris Brandt Sept. 15, 2016, 7:34 p.m. UTC
Since the MMC and SDHI1 on the RSK share the same socket connector (CN1),
you cannot enabled MMC and SDHI1 at the same time. Therefore the status
has been set to disabled because SDHI is more popular with this board.
However, keeping this code in here serves as a good way to document how
the MMC on the RZ/A1 has been known to work for someone that does want
to use MMC instead of SDHI1.

A fixed 3.3 regulator is included because it is required by the mmc
driver.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/boot/dts/r7s72100-rskrza1.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Sergei Shtylyov Sept. 16, 2016, 10:54 a.m. UTC | #1
On 9/15/2016 10:34 PM, Chris Brandt wrote:

> Since the MMC and SDHI1 on the RSK share the same socket connector (CN1),
> you cannot enabled MMC and SDHI1 at the same time. Therefore the status

    Enable.

> has been set to disabled because SDHI is more popular with this board.
> However, keeping this code in here serves as a good way to document how
> the MMC on the RZ/A1 has been known to work for someone that does want
> to use MMC instead of SDHI1.
>
> A fixed 3.3 regulator is included because it is required by the mmc
> driver.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
[...]

MBR, Sergei
diff mbox

Patch

diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index e5dea5b..9228b04 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -33,6 +33,15 @@ 
 		#address-cells = <1>;
 		#size-cells = <1>;
 	};
+
+	d3_3v: regulator-d3-3v {
+		compatible = "regulator-fixed";
+		regulator-name = "D3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
 };
 
 &extal_clk {
@@ -56,6 +65,14 @@ 
 	};
 };
 
+&mmcif {
+	vmmc-supply = <&d3_3v>;
+	vqmmc-supply = <&d3_3v>;
+	bus-width = <8>;
+	non-removable;
+	status = "disabled"; /* shares CN1 with sdhi1 */
+};
+
 &scif2 {
 	status = "okay";
 };