This is an automated email from the ASF dual-hosted git repository. davids5 pushed a commit to branch revert-5010-stm32h7_sdmmc_50MHz_clk in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
commit 157cb668c7c2c9ecaa85723c622d1fbb2a50449c Author: David Sidrane <[email protected]> AuthorDate: Thu Dec 16 04:23:46 2021 -0800 Revert "stm32h7 sdmmc: set SDMMC_CK pin to high speed (50 MHz) mode. When it was in slow speed mode (by default), the output SDMMC_CK clock rise and fall times were about 13 ns each, that were very slow and prevented some SDIO devices from working." This reverts commit 0aecfe86913074586efc64798fae205e0d78104e. --- arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap.h | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap.h b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap.h index 8a1724e..54a59e7 100644 --- a/arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap.h +++ b/arch/arm/src/stm32h7/hardware/stm32h7x3xx_pinmap.h @@ -1049,17 +1049,10 @@ #define GPIO_SAI4_SD_B_1 (GPIO_ALT|GPIO_AF8|GPIO_PORTE|GPIO_PIN3) #define GPIO_SAI4_SD_B_2 (GPIO_ALT|GPIO_AF8|GPIO_PORTF|GPIO_PIN6) -/* SD/MMC - * - * Note that the below configures GPIO_SPEED_50MHz I/O. In case of using - * the SD/MMC it is recommended to enable I/O compensation cell for slew rate - * control on I/O commutation to reduce the I/O noise on power supply. - * The I/O commutation cell can be enabled by setting - * CONFIG_STM32_SYSCFG_IOCOMPENSATION=y option in your board configuration. - */ +/* SD/MMC */ #define GPIO_SDMMC1_CDIR (GPIO_ALT|GPIO_AF7|GPIO_PORTB|GPIO_PIN9) -#define GPIO_SDMMC1_CK (GPIO_ALT|GPIO_AF12|GPIO_SPEED_50MHz|GPIO_PORTC|GPIO_PIN12) +#define GPIO_SDMMC1_CK (GPIO_ALT|GPIO_AF12|GPIO_PORTC|GPIO_PIN12) #define GPIO_SDMMC1_CKIN (GPIO_ALT|GPIO_AF7|GPIO_PORTB|GPIO_PIN8) #define GPIO_SDMMC1_CMD (GPIO_ALT|GPIO_AF12|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTD|GPIO_PIN2) #define GPIO_SDMMC1_D0 (GPIO_ALT|GPIO_AF12|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTC|GPIO_PIN8) @@ -1073,8 +1066,8 @@ #define GPIO_SDMMC1_D6 (GPIO_ALT|GPIO_AF12|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTC|GPIO_PIN6) #define GPIO_SDMMC1_D7 (GPIO_ALT|GPIO_AF12|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTC|GPIO_PIN7) -#define GPIO_SDMMC2_CK_1 (GPIO_ALT|GPIO_AF11|GPIO_SPEED_50MHz|GPIO_PORTD|GPIO_PIN6) -#define GPIO_SDMMC2_CK_2 (GPIO_ALT|GPIO_AF9|GPIO_SPEED_50MHz|GPIO_PORTC|GPIO_PIN1) +#define GPIO_SDMMC2_CK_1 (GPIO_ALT|GPIO_AF11|GPIO_PORTD|GPIO_PIN6) +#define GPIO_SDMMC2_CK_2 (GPIO_ALT|GPIO_AF9|GPIO_PORTC|GPIO_PIN1) #define GPIO_SDMMC2_CMD_1 (GPIO_ALT|GPIO_AF11|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PULLUP|GPIO_PORTD|GPIO_PIN7) #define GPIO_SDMMC2_CMD_2 (GPIO_ALT|GPIO_AF9|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTA|GPIO_PIN0) #define GPIO_SDMMC2_D0 (GPIO_ALT|GPIO_AF9|GPIO_SPEED_50MHz|GPIO_PUSHPULL|GPIO_PORTB|GPIO_PIN14)
