b5b838f1a7
Add new configuration option CONFIG_MMC_TINY which strips away all memory allocation within the MMC code and code for handling multiple cards. This allows extremely space-constrained SPL code use the MMC framework. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Jaehoon Chung <jh80.chung@samsung.com>
114 lines
3.9 KiB
Plaintext
114 lines
3.9 KiB
Plaintext
menu "MMC Host controller Support"
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config MMC
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bool "Enable MMC support"
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depends on ARCH_SUNXI || SANDBOX
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help
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TODO: Move all architectures to use this option
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config DM_MMC
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bool "Enable MMC controllers using Driver Model"
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depends on DM
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help
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This enables the MultiMediaCard (MMC) uclass which supports MMC and
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Secure Digital I/O (SDIO) cards. Both removable (SD, micro-SD, etc.)
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and non-removable (e.g. eMMC chip) devices are supported. These
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appear as block devices in U-Boot and can support filesystems such
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as EXT4 and FAT.
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config DM_MMC_OPS
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bool "Support MMC controller operations using Driver Model"
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depends on DM_MMC
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default y if DM_MMC
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help
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Driver model provides a means of supporting device operations. This
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option moves MMC operations under the control of driver model. The
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option will be removed as soon as all DM_MMC drivers use it, as it
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will the only supported behaviour.
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config SPL_MMC_TINY
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bool "Tiny MMC framework in SPL"
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help
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Enable MMC framework tinification support. This option is useful if
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if your SPL is extremely size constrained. Heed the warning, enable
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this option if and only if you know exactly what you are doing, if
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you are reading this help text, you most likely have no idea :-)
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The MMC framework is reduced to bare minimum to be useful. No malloc
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support is needed for the MMC framework operation with this option
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enabled. The framework supports exactly one MMC device and exactly
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one MMC driver. The MMC driver can be adjusted to avoid any malloc
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operations too, which can remove the need for malloc support in SPL
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and thus further reduce footprint.
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config MSM_SDHCI
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bool "Qualcomm SDHCI controller"
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depends on DM_MMC && BLK && DM_MMC_OPS
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help
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Enables support for SDHCI 2.0 controller present on some Qualcomm
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Snapdragon devices. This device is compatible with eMMC v4.5 and
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SD 3.0 specifications. Both SD and eMMC devices are supported.
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Card-detect gpios are not supported.
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config ATMEL_SDHCI
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bool "Atmel SDHCI controller support"
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depends on DM_MMC && BLK && DM_MMC_OPS && ARCH_AT91
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help
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This enables support for the Atmel SDHCI controller, which supports
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the embedded MultiMedia Card (e.MMC) Specification V4.51, the SD
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Memory Card Specification V3.0, and the SDIO V3.0 specification.
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It is compliant with the SD Host Controller Standard V3.0
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specification.
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config ROCKCHIP_DWMMC
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bool "Rockchip SD/MMC controller support"
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depends on DM_MMC && OF_CONTROL
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help
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This enables support for the Rockchip SD/MMM controller, which is
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based on Designware IP. The device is compatible with at least
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SD 3.0, SDIO 3.0 and MMC 4.5 and supports common eMMC chips as well
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as removeable SD and micro-SD cards.
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config SH_SDHI
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bool "SuperH/Renesas ARM SoCs on-chip SDHI host controller support"
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depends on RMOBILE
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help
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Support for the on-chip SDHI host controller on SuperH/Renesas ARM SoCs platform
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config PIC32_SDHCI
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bool "Microchip PIC32 on-chip SDHCI support"
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depends on DM_MMC && MACH_PIC32
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help
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Support for Microchip PIC32 SDHCI controller.
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config ZYNQ_SDHCI
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bool "Arasan SDHCI controller support"
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depends on DM_MMC && OF_CONTROL
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help
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Support for Arasan SDHCI host controller on Zynq/ZynqMP ARM SoCs platform
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config ROCKCHIP_SDHCI
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bool "Arasan SDHCI controller for Rockchip support"
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depends on DM_MMC && BLK && DM_MMC_OPS
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help
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Support for Arasan SDHCI host controller on Rockchip ARM SoCs platform
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config MMC_UNIPHIER
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bool "UniPhier SD/MMC Host Controller support"
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depends on ARCH_UNIPHIER
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depends on BLK
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select DM_MMC_OPS
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help
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This selects support for the SD/MMC Host Controller on UniPhier SoCs.
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config SANDBOX_MMC
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bool "Sandbox MMC support"
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depends on MMC && SANDBOX
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help
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This select a dummy sandbox MMC driver. At present this does nothing
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other than allow sandbox to be build with MMC support. This
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improves build coverage for sandbox and makes it easier to detect
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MMC build errors with sandbox.
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endmenu
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