diff --git a/util/openocd.genesys2.tcl b/util/openocd.genesys2.tcl
index fc1460488..ef81a7630 100644
--- a/util/openocd.genesys2.tcl
+++ b/util/openocd.genesys2.tcl
@@ -4,7 +4,7 @@
 #
 # OpenOCD script for Cheshire on Genesys2.
 
-adapter_khz 2000
+adapter_khz 8000
 interface ftdi
 ftdi_vid_pid 0x0403 0x6010
 ftdi_layout_init 0x00e8 0x60eb
diff --git a/util/openocd.hs2.tcl b/util/openocd.hs2.tcl
index c0a83b560..c60d05475 100644
--- a/util/openocd.hs2.tcl
+++ b/util/openocd.hs2.tcl
@@ -4,7 +4,7 @@
 #
 # OpenOCD script for Cheshire through Digilent HS2 adapter.
 
-adapter_khz 2000
+adapter_khz 8000
 interface ftdi
 ftdi_vid_pid 0x0403 0x6014
 ftdi_layout_init 0x00e8 0x60eb