xref: /openbmc/u-boot/doc/README.fsl-esdhc (revision 39632b4a01210e329333d787d828157dcd2c7328)
1*5a8dbdc6SYangbo LuFreescale esdhc-specific options
2c82e9de4SWang Huan
3*5a8dbdc6SYangbo Lu	- CONFIG_FSL_ESDHC_ADAPTER_IDENT
4*5a8dbdc6SYangbo Lu		Support Freescale adapter card type identification. This is implemented by
5*5a8dbdc6SYangbo Lu		operating Qixis FPGA relevant registers. The STAT_PRES1 register has SDHC
6*5a8dbdc6SYangbo Lu		Card ID[0:2] bits showing the type of card installed in the SDHC Adapter Slot.
7*5a8dbdc6SYangbo Lu
8*5a8dbdc6SYangbo Lu		SDHC Card ID[0:2]	Adapter Card Type
9*5a8dbdc6SYangbo Lu		0b000			reserved
10*5a8dbdc6SYangbo Lu		0b001			eMMC Card Rev4.5
11*5a8dbdc6SYangbo Lu		0b010			SD/MMC Legacy Card
12*5a8dbdc6SYangbo Lu		0b011			eMMC Card Rev4.4
13*5a8dbdc6SYangbo Lu		0b100			reserved
14*5a8dbdc6SYangbo Lu		0b101			MMC Card
15*5a8dbdc6SYangbo Lu		0b110			SD Card Rev2.0/3.0
16*5a8dbdc6SYangbo Lu		0b111			No card is present
17*5a8dbdc6SYangbo Lu	- CONFIG_SYS_FSL_ESDHC_LE
18*5a8dbdc6SYangbo Lu		ESDHC IP is in little-endian mode. Accessing ESDHC registers can be
19*5a8dbdc6SYangbo Lu		determined by ESDHC IP's endian mode or processor's endian mode.
20*5a8dbdc6SYangbo Lu	- CONFIG_SYS_FSL_ESDHC_BE
21*5a8dbdc6SYangbo Lu		ESDHC IP is in big-endian mode. Accessing ESDHC registers can be determined
22*5a8dbdc6SYangbo Lu		by ESDHC IP's endian mode or processor's endian mode.
23