[people/ms/u-boot.git] / doc / README.fsl-esdhc

Freescale esdhc-specific options

	- CONFIG_FSL_ESDHC_ADAPTER_IDENT
		Support Freescale adapter card type identification. This is implemented by
		operating Qixis FPGA relevant registers. The STAT_PRES1 register has SDHC
		Card ID[0:2] bits showing the type of card installed in the SDHC Adapter Slot.

		SDHC Card ID[0:2]	Adapter Card Type
		0b000			reserved
		0b001			eMMC Card Rev4.5
		0b010			SD/MMC Legacy Card
		0b011			eMMC Card Rev4.4
		0b100			reserved
		0b101			MMC Card
		0b110			SD Card Rev2.0/3.0
		0b111			No card is present
	- CONFIG_SYS_FSL_ESDHC_LE
		ESDHC IP is in little-endian mode. Accessing ESDHC registers can be
		determined by ESDHC IP's endian mode or processor's endian mode.
	- CONFIG_SYS_FSL_ESDHC_BE
		ESDHC IP is in big-endian mode. Accessing ESDHC registers can be determined
		by ESDHC IP's endian mode or processor's endian mode.
Commit	Line	Data
5a8dbdc6	1	Freescale esdhc-specific options
c82e9de4	2
5a8dbdc6 YL	3	- CONFIG_FSL_ESDHC_ADAPTER_IDENT
	4	Support Freescale adapter card type identification. This is implemented by
	5	operating Qixis FPGA relevant registers. The STAT_PRES1 register has SDHC
	6	Card ID[0:2] bits showing the type of card installed in the SDHC Adapter Slot.
	7
	8	SDHC Card ID[0:2] Adapter Card Type
	9	0b000 reserved
	10	0b001 eMMC Card Rev4.5
	11	0b010 SD/MMC Legacy Card
	12	0b011 eMMC Card Rev4.4
	13	0b100 reserved
	14	0b101 MMC Card
	15	0b110 SD Card Rev2.0/3.0
	16	0b111 No card is present
	17	- CONFIG_SYS_FSL_ESDHC_LE
	18	ESDHC IP is in little-endian mode. Accessing ESDHC registers can be
	19	determined by ESDHC IP's endian mode or processor's endian mode.
	20	- CONFIG_SYS_FSL_ESDHC_BE
	21	ESDHC IP is in big-endian mode. Accessing ESDHC registers can be determined
	22	by ESDHC IP's endian mode or processor's endian mode.