Add Altera USB-Blaster SPI programmer

Adds support for the Altera USB-Blaster programming dongle in Active
Serial (AS) mode. Tested on both original product and a clone dongle.

Corresponding to flashrom svn r1658.

Signed-off-by: James Laird <>
Signed-off-by: Kyösti Mälkki <>
Signed-off-by: Stefan Tauner <>
Acked-by: Kyösti Mälkki <>
Acked-by: Stefan Tauner <>
diff --git a/README b/README
index 8e812be..7f24cca 100644
--- a/README
+++ b/README
@@ -45,8 +45,8 @@
 To build flashrom you need to install the following software:
  * pciutils+libpci (if you want support for mainboard or PCI device flashing)
- * libusb (if you want FT2232 or Dediprog support)
- * libftdi (if you want FT2232 support)
+ * libusb (if you want FT2232, Dediprog or USB-Blaster support)
+ * libftdi (if you want FT2232 or USB-Blaster support)
 Linux et al: