Luiz Otavio O Souza ba6fc1c73c Raise the SDHCI timeout to 10 seconds and add a sysctl to allow changing ... this value at runtime. The SD card specification says that a block write or a block erase can take up to 250ms to complete and thus, under some circumstances, the existent 2 seconds timeout was triggering with normal usage. This change fixes the sporadic controller timeout that happens on RPi and RPi 2. Discussed with: ian (some time ago)		2015-05-21 20:09:36 +00:00
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sdhci_fdt.c
sdhci_if.m
sdhci_pci.c
sdhci.c
sdhci.h