Found this in my X240, the following diff makes it work.
rtsx0 at pci1 dev 0 function 0 "Realtek RTS5227 Card Reader" rev 0x01: msi
sdmmc0 at rtsx0
scsibus4 at sdmmc0: 2 targets, initiator 0
sd1 at scsibus4 targ 1 lun 0: <SD/MMC, Drive #01, > SCSI2 0/direct fixed
sd1: 15296MB, 512 bytes/sector, 31326208 sectors
A bit surprised since it seems Linux has two different drivers for RTS52x9
and RTS5227.
--
:wq Claudio
Index: dev/pci/rtsx_pci.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/rtsx_pci.c,v
retrieving revision 1.4
diff -u -p -r1.4 rtsx_pci.c
--- dev/pci/rtsx_pci.c 6 Nov 2013 13:51:02 -0000 1.4
+++ dev/pci/rtsx_pci.c 4 Apr 2014 20:13:41 -0000
@@ -58,7 +58,8 @@ rtsx_pci_match(struct device *parent, vo
return 0;
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5209 ||
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229)
+ PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229 ||
+ PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5227)
return 1;
return 0;
