Ziyuan Xu 649c6059d2 mmc: mmc: Fix HS switch failure in mmc_select_hs400() ... To slove the issue which was found on gru board for hs400. [ 4.616946] sdhci: Secure Digital Host Controller Interface driver [ 4.623135] sdhci: Copyright(c) Pierre Ossman [ 4.722575] sdhci-pltfm: SDHCI platform and OF driver helper [ 4.730962] sdhci-arasan fe330000.sdhci: No vmmc regulator found [ 4.737444] sdhci-arasan fe330000.sdhci: No vqmmc regulator found [ 4.774930] mmc0: SDHCI controller on fe330000.sdhci [fe330000.sdhci] using ADMA [ 4.980295] mmc0: switch to high-speed from hs200 failed, err:-84 [ 4.986487] mmc0: error -84 whilst initialising MMC card We should change HS400 mode selection timing to meet JEDEC specification. The JEDEC 5.1 said that change the frequency to <= 52MHZ after HS_TIMING switch. Refer to section 6.6.2.3 "HS400" timing mode selection: Set the "Timing Interface" parameter in the HS_TIMING[185] field of the Extended CSD register to 0x1 to switch to High Speed mode and then set the clock frequency to a value not greater than 52MHZ. Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2016-07-25 10:34:09 +02:00
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card	mmc: block: correct 4KB alignment check	2016-07-25 10:34:03 +02:00
core	mmc: mmc: Fix HS switch failure in mmc_select_hs400()	2016-07-25 10:34:09 +02:00
host	mmc: sdhci: Fix sdhci_card_busy()	2016-07-25 10:34:07 +02:00
Kconfig
Makefile	mmc: sdhci-pci: add platform data	2012-01-11 23:58:47 -05:00