Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH v3 09/14] ARM: dts: stm32: Enable SDIO controller on stm32f469 disco board | Date | Thu, 18 Jan 2018 15:34:25 +0100 |
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From: Andrea Merello <andrea.merello@gmail.com>
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@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> ---
v3: _ none
v2: _ none
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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