diff --git a/pc-bios/QEMU,tcx.bin b/pc-bios/QEMU,tcx.bin
index a8ddd70ef3..eed108f3f1 100644
Binary files a/pc-bios/QEMU,tcx.bin and b/pc-bios/QEMU,tcx.bin differ
diff --git a/pc-bios/README b/pc-bios/README
index a110125a97..f1900686dc 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -12,7 +12,7 @@
   1275-1994 (referred to as Open Firmware) compliant firmware.
   The included images for PowerPC (for 32 and 64 bit PPC CPUs),
   Sparc32 (including QEMU,tcx.bin) and Sparc64 are built from OpenBIOS SVN
-  revision 1229.
+  revision 1246.
 
 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
   implementation for certain IBM POWER hardware.  The sources are at
diff --git a/pc-bios/openbios-ppc b/pc-bios/openbios-ppc
index 550273a5ef..f4a3a396c4 100644
Binary files a/pc-bios/openbios-ppc and b/pc-bios/openbios-ppc differ
diff --git a/pc-bios/openbios-sparc32 b/pc-bios/openbios-sparc32
index 01105fc904..bb7cdfb4ec 100644
Binary files a/pc-bios/openbios-sparc32 and b/pc-bios/openbios-sparc32 differ
diff --git a/pc-bios/openbios-sparc64 b/pc-bios/openbios-sparc64
index 62c9e77983..46b4fddd08 100644
Binary files a/pc-bios/openbios-sparc64 and b/pc-bios/openbios-sparc64 differ
diff --git a/roms/openbios b/roms/openbios
index d363cf50c5..888126272f 160000
--- a/roms/openbios
+++ b/roms/openbios
@@ -1 +1 @@
-Subproject commit d363cf50c50c268da7e6d0bf707adde1893d1ab9
+Subproject commit 888126272f92294b0da45158393f1b862742cf6b