2022-02-17 03:53:54 +08:00
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# Copyright (c) 2022, NXP
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# SPDX -License-Identifier: Apache-2.0
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config IMX_USDHC
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bool "NXP IMX USDHC Driver"
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2022-08-12 11:19:08 +08:00
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default y
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depends on DT_HAS_NXP_IMX_USDHC_ENABLED
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2022-02-17 03:53:54 +08:00
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select SDHC_SUPPORTS_UHS
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select SDHC_SUPPORTS_NATIVE_MODE
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help
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Enable the NXP IMX SD Host controller driver
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if IMX_USDHC
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config IMX_USDHC_DAT3_PWR_TOGGLE
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bool "Toggle power when pulling DAT3 line low"
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default y
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help
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Toggle power to SD card to clear DAT3 pull when pulling line low
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config IMX_USDHC_DMA_SUPPORT
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2022-09-08 04:06:17 +08:00
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bool "DMA support for USDHC"
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2022-02-17 03:53:54 +08:00
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default y
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2022-09-08 04:06:17 +08:00
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select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
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help
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Enable DMA support for USDHC
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2022-02-17 03:53:54 +08:00
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if IMX_USDHC_DMA_SUPPORT
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# USDHC DMA needs 32 bit aligned buffers
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config SDHC_BUFFER_ALIGNMENT
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default 4
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config IMX_USDHC_DMA_BUFFER_SIZE
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int "Size of DMA descriptor buffer in bytes"
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default 128
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help
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Size of USDHC ADMA descriptor buffer in bytes
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endif # IMX_USDHC_DMA_SUPPORT
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endif
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