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Add adapter card type identification support by reading FPGA STAT_PRES1 register SDHC Card ID[0:2] bits. To use this function, define CONFIG_FSL_ESDHC_ADAPTER_IDENT. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Cc: York Sun <yorksun@freescale.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> [York Sun: resolve conflicts in README.fsl-esdhc] Reviewed-by: York Sun <yorksun@freescale.com>
24 lines
926 B
Text
24 lines
926 B
Text
Freescale esdhc-specific options
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- CONFIG_FSL_ESDHC_ADAPTER_IDENT
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Support Freescale adapter card type identification. This is implemented by
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operating Qixis FPGA relevant registers. The STAT_PRES1 register has SDHC
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Card ID[0:2] bits showing the type of card installed in the SDHC Adapter Slot.
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SDHC Card ID[0:2] Adapter Card Type
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0b000 reserved
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0b001 eMMC Card Rev4.5
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0b010 SD/MMC Legacy Card
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0b011 eMMC Card Rev4.4
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0b100 reserved
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0b101 MMC Card
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0b110 SD Card Rev2.0/3.0
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0b111 No card is present
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- CONFIG_SYS_FSL_ESDHC_LE
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ESDHC IP is in little-endian mode. Accessing ESDHC registers can be
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determined by ESDHC IP's endian mode or processor's endian mode.
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- CONFIG_SYS_FSL_ESDHC_BE
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ESDHC IP is in big-endian mode. Accessing ESDHC registers can be determined
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by ESDHC IP's endian mode or processor's endian mode.
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- CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT forces to run at 1.8V.
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