diff options
author | mav <mav@FreeBSD.org> | 2009-01-16 19:28:25 +0000 |
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committer | mav <mav@FreeBSD.org> | 2009-01-16 19:28:25 +0000 |
commit | 25496c56fad49877b89f304687259bd2610c7e4f (patch) | |
tree | 8d3607bdb3ad7dbafb4505c8d38695339b876933 /share | |
parent | ac0e50279760f174435ba6367200b16bf50355fb (diff) | |
download | FreeBSD-src-25496c56fad49877b89f304687259bd2610c7e4f.zip FreeBSD-src-25496c56fad49877b89f304687259bd2610c7e4f.tar.gz |
Add some information in SYNOPSIS, HARDWARE and BUGS sections.
Diffstat (limited to 'share')
-rw-r--r-- | share/man/man4/sdhci.4 | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/share/man/man4/sdhci.4 b/share/man/man4/sdhci.4 index 58635ab..09d4313 100644 --- a/share/man/man4/sdhci.4 +++ b/share/man/man4/sdhci.4 @@ -24,16 +24,29 @@ .\" .\" $FreeBSD$ .\" -.Dd October 22, 2008 +.Dd January 14, 2009 .Dt SDHCI 4 .Os .Sh NAME .Nm sdhci .Nd PCI SD Host Controller bridge driver .Sh SYNOPSIS -.Cd device mmc -.Cd device mmcsd -.Cd device sdhci +To compile this driver into the kernel, place the following lines in your +kernel configuration file: +.Bd -ragged -offset indent +.Cd "device mmc" +.Cd "device mmcsd" +.Cd "device sdhci" +.Ed +.Pp +Alternatively, to load the driver as a module at boot time, place the +following lines in +.Xr loader.conf 5 : +.Bd -literal -offset indent +mmc_load="YES" +mmcsd_load="YES" +sdhci_load="YES" +.Ed .Sh DESCRIPTION The .Nm @@ -42,6 +55,22 @@ 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. +.Sh HARDWARE +The +.Nm +driver supports different specification compatible chips. The following +chips have been verified to work: +.Pp +.Bl -bullet -compact +.It +ENE CB712 +.It +ENE CB714 +.It +RICOH R5C822 +.It +TI PCIXX21/XX11 +.El .Sh SEE ALSO .Xr mmc 4 , .Xr mmcsd 4 @@ -50,3 +79,8 @@ detaches it on card removing. .Re .Sh AUTHORS .An Alexander Motin Aq mav@FreeBSD.org . +.Sh BUGS +Many of existing SD controller chips have some nonstandard requirements, +proprietary registers and hardware bugs, requiring additional handling. +ENE chips are handled to work fine, while some revisions of RICOH and TI +controllers still don't see cards without some additional initialization. |