From: Andrea Merello <andrea.merello@xxxxxxxxx>
This patch adds SDIO-related DT nodes required by stm32f469 board
There is a hardware issue on these boards, it misses a pullup on
the GPIO line used as card detect to allow correct SD card
detection. To allow correct card detection "broken-cd" property
is used.
Signed-off-by: Andrea Merello <andrea.merello@xxxxxxxxx>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@xxxxxx>
Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxx>
---
arch/arm/boot/dts/stm32f469-disco.dts | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 318fb12..ebb97c3 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -66,6 +66,13 @@
serial0 = &usart3;
};
+ mmc_vcard: mmc_vcard {
+ compatible = "regulator-fixed";
+ regulator-name = "mmc_vcard";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
soc {
dma-ranges = <0xc0000000 0x0 0x10000000>;
};
@@ -120,6 +127,18 @@
};
};
+&sdio {
+ status = "okay";
+ vmmc-supply = <&mmc_vcard>;
+ cd-gpios = <&gpiog 2 0>;
+ cd-inverted;
+ broken-cd;
+ pinctrl-names = "default", "opendrain";
+ pinctrl-0 = <&sdio_pins>;
+ pinctrl-1 = <&sdio_pins_od>;
+ bus-width = <4>;
+};
+
&usart3 {
pinctrl-0 = <&usart3_pins_a>;
pinctrl-names = "default";
--
1.9.1
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