Index: src/sys/dev/ata/ata-chipset.c
===================================================================
RCS file: /ncvs/src/sys/dev/ata/ata-chipset.c,v
retrieving revision 1.212
diff -u -p -r1.212 ata-chipset.c
--- src/sys/dev/ata/ata-chipset.c	7 Mar 2008 09:29:19 -0000	1.212
+++ src/sys/dev/ata/ata-chipset.c	26 Mar 2008 10:09:57 -0000
@@ -1803,6 +1803,7 @@ ata_intel_ident(device_t dev)
      { ATA_I82801HB_R1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
      { ATA_I82801HB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
      { ATA_I82801HB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
+     { ATA_I82801HBM,    0,    0, 0x00, ATA_UDMA5, "ICH8M" },
      { ATA_I82801HBM_S1, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
      { ATA_I82801HBM_S2, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
      { ATA_I82801IB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
Index: src/sys/dev/ata/ata-pci.h
===================================================================
RCS file: /ncvs/src/sys/dev/ata/ata-pci.h,v
retrieving revision 1.83
diff -u -p -r1.83 ata-pci.h
--- src/sys/dev/ata/ata-pci.h	7 Mar 2008 09:29:19 -0000	1.83
+++ src/sys/dev/ata/ata-pci.h	26 Mar 2008 10:09:57 -0000
@@ -170,6 +170,7 @@ struct ata_connect_task {
 #define ATA_I82801HB_R1         0x28228086
 #define ATA_I82801HB_AH4        0x28248086
 #define ATA_I82801HB_S2         0x28258086
+#define ATA_I82801HBM           0x28508086
 #define ATA_I82801HBM_S1        0x28298086
 #define ATA_I82801HBM_S2        0x282a8086
 #define ATA_I82801IB_S1         0x29208086