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board/arm stm32: SDMMC support for stm32h747i_disco

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This commit adds support for SDMMC in stm32h747i_disco.
This commit is tested with fat fs list file example in
samples/subsys/fs/fatfs.

Signed-off-by: Affrin Pinhero <affrin.pinhero@hcl.com>
This commit is contained in:
Affrin Pinhero 2021-07-02 16:20:50 +05:30 • committed by Christopher Friedt
commit 1a4015f28d
3 changed files with 14 additions and 0 deletions
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3
boards/arm/stm32h747i_disco/Kconfig.defconfig
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@ -19,4 +19,7 @@ config NET_L2_ETHERNET
endif # NETWORKING
config DISK_DRIVER_SDMMC
default y if DISK_DRIVERS
endif # BOARD_STM32H747I_DISCO_M7

3
boards/arm/stm32h747i_disco/doc/index.rst
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@ -73,6 +73,8 @@ The current Zephyr stm32h747i_disco board configuration supports the following h
+-----------+------------+-------------------------------------+
| SPI | on-chip | spi |
+-----------+------------+-------------------------------------+
| SDMMC | on-chip | disk access |
+-----------+------------+-------------------------------------+
(*) From UM2411 Rev 4:
With the default setting, the Ethernet feature is not working because of
@ -99,6 +101,7 @@ Default Zephyr Peripheral Mapping:
- UART_1 TX/RX : PA9/PA10 (ST-Link Virtual Port Com)
- UART_8 TX/RX : PJ8/PJ9 (Arduino Serial)
- SPI_5 NSS/SCK/MISO/MOSI : PK1/PK0/PJ11/PJ10 (Arduino SPI)
- SDMMC_1 D0/D1/D2/D3/CK/CMD: PC8/PC9/PC10/PC11/PC12/PD2
- LD1 : PI12
- LD2 : PI13
- LD3 : PI14

8
boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts
View file

@ -161,4 +161,12 @@
};
};
&sdmmc1 {
status = "okay";
pinctrl-0 = <&sdmmc1_d0_pc8 &sdmmc1_d1_pc9
&sdmmc1_d2_pc10 &sdmmc1_d3_pc11
&sdmmc1_ck_pc12 &sdmmc1_cmd_pd2>;
cd-gpios = <&gpioi 8 GPIO_ACTIVE_LOW>;
};
arduino_spi: &spi5 {};