| # Copyright 2022 NXP |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| # SD stack configuration options |
| |
| menu "SD" |
| |
| config MMC_STACK |
| bool "MMC protocol support" |
| help |
| Enable MMC protocol support. Required for eMMC cards to function. |
| |
| config SDMMC_STACK |
| bool "SDMMC protocol support" |
| help |
| Enable SDMMC protocol support. Required for SD memory cards to |
| function. |
| |
| config SDIO_STACK |
| bool "SDIO protocol support" |
| help |
| Enable SDIO protocol support. Required for SD I/O cards to function. |
| |
| config SD_STACK |
| bool |
| default y if MMC_STACK || SDMMC_STACK || SDIO_STACK |
| select SDHC |
| help |
| Enable SD card support. |
| |
| if SD_STACK |
| |
| module = SD |
| module-str = SD stack |
| source "subsys/logging/Kconfig.template.log_config" |
| |
| config SD_INIT_TIMEOUT |
| int "Timeout while initializing SD card" |
| default 1500 |
| help |
| Maximum time to wait, in milliseconds, for the SD card to initialize. |
| |
| config SD_RETRY_COUNT |
| int "Number of times to retry initialization commands" |
| default 10 |
| help |
| Number of times to retry initialization commands in case of failure |
| |
| config SD_OCR_RETRY_COUNT |
| int "Number of times to retry SD OCR read" |
| default 1000 |
| help |
| Number of times to retry SD OCR read command. OCR reads typically |
| require more retries than general SD commands |
| |
| config SD_CMD_TIMEOUT |
| int "Timeout for SD commands (in ms)" |
| default 200 |
| help |
| Default timeout in milliseconds for SD commands |
| |
| config SD_DATA_TIMEOUT |
| int "Timeout for SD data transfer (in ms)" |
| default 10000 |
| help |
| Default timeout in milliseconds for SD data transfer commands |
| |
| config SD_BUFFER_SIZE |
| int |
| # If SDHC required buffer alignment, we need a full block size in |
| # internal buffer |
| default 512 if SDHC_BUFFER_ALIGNMENT != 1 |
| # If MMC is being used, need 512 bytes to read EXT_CSD |
| default 512 if MMC_STACK |
| # If SDIO is being used, need 512 bytes to read FUNC0 CIS |
| default 512 if SDIO_STACK |
| # Otherwise, we only need 64 bytes to read SD switch function |
| default 64 |
| help |
| Size in bytes of internal buffer SD card uses for unaligned reads and |
| internal data reads during initialization |
| |
| config SD_CMD_RETRIES |
| int "Number of times to retry sending command to card" |
| default 0 |
| help |
| Number of times to retry sending command to SD card in case of failure |
| |
| config SD_DATA_RETRIES |
| int "Number of times to retry sending data to card" |
| default 3 |
| help |
| Number of times to retry sending data to SD card in case of failure |
| |
| |
| config SD_UHS_PROTOCOL |
| bool "Ultra high speed SD card protocol support" |
| default y if SDHC_SUPPORTS_UHS |
| help |
| Enable support for ultra high speed SD cards. This can be disabled to |
| reduce code size, at the cost of data transfer speeds. |
| |
| config MMC_RCA |
| hex "MMC Relative card address" |
| default 2 |
| help |
| Relative card address to publish to MMC card. |
| |
| endif # SD_STACK |
| |
| endmenu |
