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ARM: DTS: stm32: add MMC nodes for stm32f746-disco and stm32f769-disco

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Add DT nodes to enable ARM_PL180_MMCI IP support for STM32F746
and STM32F769 discovery boards

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.
As workaround, cd-gpios property is not present in DT.
So SD card is always considered present in the slot.

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrice Chotard 2017-12-12 10:14:59 +01:00 committed by Tom Rini
parent 45be08822f
commit 77729bd744
4 changed files with 127 additions and 1 deletions
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12
arch/arm/dts/stm32f746-disco.dts
View file

@ -65,6 +65,7 @@
aliases {
serial0 = &usart1;
spi0 = &qspi;
mmc0 = &sdio;
/* Aliases for gpios so as to use sequence */
gpio0 = &gpioa;
gpio1 = &gpiob;
@ -238,3 +239,14 @@
reg = <0>;
};
};
&sdio {
status = "okay";
cd-gpios = <&gpioc 13 0>;
cd-inverted;
pinctrl-names = "default", "opendrain";
pinctrl-0 = <&sdio_pins>;
pinctrl-1 = <&sdio_pins_od>;
bus-width = <4>;
max-frequency = <25000000>;
};

85
arch/arm/dts/stm32f746.dtsi
View file

@ -234,6 +234,91 @@
u-boot,dm-pre-reloc;
};
sdio_pins: sdio_pins@0 {
pins {
pinmux = <STM32F746_PC8_FUNC_SDMMC1_D0>,
<STM32F746_PC9_FUNC_SDMMC1_D1>,
<STM32F746_PC10_FUNC_SDMMC1_D2>,
<STM32F746_PC11_FUNC_SDMMC1_D3>,
<STM32F746_PC12_FUNC_SDMMC1_CK>,
<STM32F746_PD2_FUNC_SDMMC1_CMD>;
drive-push-pull;
slew-rate = <2>;
};
};
sdio_pins_od: sdio_pins_od@0 {
pins1 {
pinmux = <STM32F746_PC8_FUNC_SDMMC1_D0>,
<STM32F746_PC9_FUNC_SDMMC1_D1>,
<STM32F746_PC10_FUNC_SDMMC1_D2>,
<STM32F746_PC11_FUNC_SDMMC1_D3>,
<STM32F746_PC12_FUNC_SDMMC1_CK>;
drive-push-pull;
slew-rate = <2>;
};
pins2 {
pinmux = <STM32F746_PD2_FUNC_SDMMC1_CMD>;
drive-open-drain;
slew-rate = <2>;
};
};
sdio_pins_b: sdio_pins_b@0 {
pins {
pinmux = <STM32F769_PG9_FUNC_SDMMC2_D0>,
<STM32F769_PG10_FUNC_SDMMC2_D1>,
<STM32F769_PB3_FUNC_SDMMC2_D2>,
<STM32F769_PB4_FUNC_SDMMC2_D3>,
<STM32F769_PD6_FUNC_SDMMC2_CLK>,
<STM32F769_PD7_FUNC_SDMMC2_CMD>;
drive-push-pull;
slew-rate = <2>;
};
};
sdio_pins_od_b: sdio_pins_od_b@0 {
pins1 {
pinmux = <STM32F769_PG9_FUNC_SDMMC2_D0>,
<STM32F769_PG10_FUNC_SDMMC2_D1>,
<STM32F769_PB3_FUNC_SDMMC2_D2>,
<STM32F769_PB4_FUNC_SDMMC2_D3>,
<STM32F769_PD6_FUNC_SDMMC2_CLK>;
drive-push-pull;
slew-rate = <2>;
};
pins2 {
pinmux = <STM32F769_PD7_FUNC_SDMMC2_CMD>;
drive-open-drain;
slew-rate = <2>;
};
};
};
sdio: sdio@40012c00 {
compatible = "st,stm32f4xx-sdio";
reg = <0x40012c00 0x400>;
clocks = <&rcc 0 171>;
interrupts = <49>;
status = "disabled";
pinctrl-0 = <&sdio_pins>;
pinctrl-1 = <&sdio_pins_od>;
pinctrl-names = "default", "opendrain";
max-frequency = <48000000>;
};
sdio2: sdio2@40011c00 {
compatible = "st,stm32f4xx-sdio";
reg = <0x40011c00 0x400>;
clocks = <&rcc 0 167>;
interrupts = <103>;
status = "disabled";
pinctrl-0 = <&sdio_pins_b>;
pinctrl-1 = <&sdio_pins_od_b>;
pinctrl-names = "default", "opendrain";
max-frequency = <48000000>;
};
};
};

12
arch/arm/dts/stm32f769-disco.dts
View file

@ -60,6 +60,7 @@
aliases {
serial0 = &usart1;
spi0 = &qspi;
mmc0 = &sdio2;
/* Aliases for gpios so as to use sequence */
gpio0 = &gpioa;
gpio1 = &gpiob;
@ -252,3 +253,14 @@
reg = <0>;
};
};
&sdio2 {
status = "okay";
cd-gpios = <&gpioi 15 0>;
cd-inverted;
pinctrl-names = "default", "opendrain";
pinctrl-0 = <&sdio_pins_b>;
pinctrl-1 = <&sdio_pins_od_b>;
bus-width = <4>;
max-frequency = <25000000>;
};

19
include/dt-bindings/pinctrl/stm32f746-pinfunc.h
View file

@ -154,7 +154,6 @@
#define STM32F746_PA15_FUNC_EVENTOUT 0xf10
#define STM32F746_PA15_FUNC_ANALOG 0xf11
#define STM32F746_PB0_FUNC_GPIO 0x1000
#define STM32F746_PB0_FUNC_TIM1_CH2N 0x1002
#define STM32F746_PB0_FUNC_TIM3_CH3 0x1003
@ -188,6 +187,9 @@
#define STM32F746_PB3_FUNC_TIM2_CH2 0x1302
#define STM32F746_PB3_FUNC_SPI1_SCK_I2S1_CK 0x1306
#define STM32F746_PB3_FUNC_SPI3_SCK_I2S3_CK 0x1307
#define STM32F769_PB3_FUNC_SDMMC2_D2 0x130b
#define STM32F746_PB3_FUNC_EVENTOUT 0x1310
#define STM32F746_PB3_FUNC_ANALOG 0x1311
@ -197,6 +199,9 @@
#define STM32F746_PB4_FUNC_SPI1_MISO 0x1406
#define STM32F746_PB4_FUNC_SPI3_MISO 0x1407
#define STM32F746_PB4_FUNC_SPI2_NSS_I2S2_WS 0x1408
#define STM32F769_PB4_FUNC_SDMMC2_D3 0x140b
#define STM32F746_PB4_FUNC_EVENTOUT 0x1410
#define STM32F746_PB4_FUNC_ANALOG 0x1411
@ -505,6 +510,9 @@
#define STM32F746_PD6_FUNC_SPI3_MOSI_I2S3_SD 0x3606
#define STM32F746_PD6_FUNC_SAI1_SD_A 0x3607
#define STM32F746_PD6_FUNC_USART2_RX 0x3608
#define STM32F769_PD6_FUNC_SDMMC2_CLK 0x360c
#define STM32F746_PD6_FUNC_FMC_NWAIT 0x360d
#define STM32F746_PD6_FUNC_DCMI_D10 0x360e
#define STM32F746_PD6_FUNC_LCD_B2 0x360f
@ -514,6 +522,9 @@
#define STM32F746_PD7_FUNC_GPIO 0x3700
#define STM32F746_PD7_FUNC_USART2_CK 0x3708
#define STM32F746_PD7_FUNC_SPDIFRX_IN0 0x3709
#define STM32F769_PD7_FUNC_SDMMC2_CMD 0x370c
#define STM32F746_PD7_FUNC_FMC_NE1 0x370d
#define STM32F746_PD7_FUNC_EVENTOUT 0x3710
#define STM32F746_PD7_FUNC_ANALOG 0x3711
@ -893,6 +904,9 @@
#define STM32F746_PG9_FUNC_USART6_RX 0x6909
#define STM32F746_PG9_FUNC_QUADSPI_BK2_IO2 0x690a
#define STM32F746_PG9_FUNC_SAI2_FS_B 0x690b
#define STM32F769_PG9_FUNC_SDMMC2_D0 0x690c
#define STM32F746_PG9_FUNC_FMC_NE2_FMC_NCE 0x690d
#define STM32F746_PG9_FUNC_DCMI_VSYNC 0x690e
#define STM32F746_PG9_FUNC_EVENTOUT 0x6910
@ -901,6 +915,9 @@
#define STM32F746_PG10_FUNC_GPIO 0x6a00
#define STM32F746_PG10_FUNC_LCD_G3 0x6a0a
#define STM32F746_PG10_FUNC_SAI2_SD_B 0x6a0b
#define STM32F769_PG10_FUNC_SDMMC2_D1 0x6a0c
#define STM32F746_PG10_FUNC_FMC_NE3 0x6a0d
#define STM32F746_PG10_FUNC_DCMI_D2 0x6a0e
#define STM32F746_PG10_FUNC_LCD_B2 0x6a0f