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authorTom Rini <trini@konsulko.com>2015-05-05 14:57:23 -0400
committerTom Rini <trini@konsulko.com>2015-05-05 14:57:23 -0400
commitd81572c272d4b0980fb9b8a02e1357090b002398 (patch)
tree4b2f774d628ab51944f0ba1ff83c15ef6b082a0f /doc
parent1131d4e22cf8f13d0dabaad7f1b84d9baffdfbd6 (diff)
parent8b0044ff5942943eaa49935f49d5006b346a60f8 (diff)
downloadtalos-obmc-uboot-d81572c272d4b0980fb9b8a02e1357090b002398.tar.gz
talos-obmc-uboot-d81572c272d4b0980fb9b8a02e1357090b002398.zip
Merge git://git.denx.de/u-boot-mpc85xx
Diffstat (limited to 'doc')
-rw-r--r--doc/README.fsl-esdhc28
1 files changed, 23 insertions, 5 deletions
diff --git a/doc/README.fsl-esdhc b/doc/README.fsl-esdhc
index 619c6b2d07..7e71387576 100644
--- a/doc/README.fsl-esdhc
+++ b/doc/README.fsl-esdhc
@@ -1,6 +1,24 @@
-CONFIG_SYS_FSL_ESDHC_LE means ESDHC IP is in little-endian mode.
-CONFIG_SYS_FSL_ESDHC_BE means ESDHC IP is in big-endian mode.
-CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT forces to run at 1.8V.
+Freescale esdhc-specific options
-Accessing ESDHC registers can be determined by ESDHC IP's endian
-mode or processor's endian mode.
+ - 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.
+
+ - CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT forces to run at 1.8V.
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