blob: 37ef6372a7729470e2f2776f2322c42516f87e0c [file] [log] [blame]
# 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
# 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_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