From 64348d9f939fed776b5f0ae76b76169701ec51c9 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Tue, 27 Feb 2018 10:35:43 +0100 Subject: [PATCH] ARM: dts: stm32: Enable SDIO controller on stm32f469 disco board 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 Signed-off-by: Alexandre TORGUE Signed-off-by: Patrice Chotard Signed-off-by: Alexandre Torgue --- arch/arm/boot/dts/stm32f469-disco.dts | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts index c18acbe4cf4e..611f9f281ee7 100644 --- a/arch/arm/boot/dts/stm32f469-disco.dts +++ b/arch/arm/boot/dts/stm32f469-disco.dts @@ -48,6 +48,7 @@ /dts-v1/; #include "stm32f429.dtsi" #include "stm32f469-pinctrl.dtsi" +#include / { model = "STMicroelectronics STM32F469i-DISCO board"; @@ -66,6 +67,13 @@ aliases { 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 +128,18 @@ timer@2 { }; }; +&sdio { + status = "okay"; + vmmc-supply = <&mmc_vcard>; + cd-gpios = <&gpiog 2 GPIO_ACTIVE_HIGH>; + 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"; -- 2.45.2