Hebbar, Gururaja cd587096c0 mmc: omap_hsmmc: Enable HSPE bit for high speed cards ... HSMMC IP on AM33xx need a special setting to handle High-speed cards. Other platforms like TI81xx, OMAP4 may need this as-well. This depends on the HSMMC IP timing closure done for the high speed cards. From AM335x TRM (SPRUH73F - 18.3.12 Output Signals Generation): The MMC/SD/SDIO output signals can be driven on either falling edge or rising edge depending on the SD_HCTL[2] HSPE bit. This feature allows to reach better timing performance, and thus to increase data transfer frequency. There are few pre-requisites for enabling the HSPE bit - Controller should support High-Speed-Enable Bit and - Controller should not be using DDR Mode and - Controller should advertise that it supports High Speed in capabilities register and - MMC/SD clock coming out of controller > 25MHz Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com> Signed-off-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>		2012-12-06 13:54:56 -05:00
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bindings	mmc: omap_hsmmc: Enable HSPE bit for high speed cards	2012-12-06 13:54:56 -05:00
00-INDEX	Documentation: add devicetree docs index file	2011-03-16 10:47:03 -07:00
booting-without-of.txt	dt/documentation: Fix value format description	2012-05-19 15:03:28 -06:00
usage-model.txt	usage-model.txt: fix typo machine_init->init_machine	2012-07-06 07:16:33 -05:00