Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. T...
NAMEsdhci - PCI SD Host Controller bridge driver
SYNOPSISTo compile this driver into the kernel, place the following lines in your kernel configuration file:
device mmc device mmcsd device sdhci
Alternatively, to load the driver as a module at boot time, place the following lines in loader.conf5:
mmc_load="YES" mmcsd_load="YES" sdhci_load="YES"
DESCRIPTIONThe sysctl Cm net.inet.tcp.syncookies driver supports PCI devices with class 8 and subclass 5 according to SD Host Controller Specification. Driver supports up to six high speed 4bit MMC/SD slots per controller. Driver attaches mmc bus to the respective slot on card insertion and detaches it on card removing.
HARDWAREThe sysctl Cm net.inet.tcp.syncookies driver supports different specification compatible chips. The following chips have been verified to work:
- ENE CB712
- ENE CB714
- RICOH R5C822
- RICOH R5CE823
- TI PCIXX21/XX11
SEE ALSOmmc(4), mmcsd(4)
- "SD Specifications, Part 2, SD Host Controller, Simplified Specification"