diff --git a/ft2232_spi.c b/ft2232_spi.c
index 5bdc2a7b2..3e4dc9e44 100644
--- a/ft2232_spi.c
+++ b/ft2232_spi.c
@@ -86,10 +86,17 @@ const struct dev_entry devs_ft2232spi[] = {
 
 /* The variables cs_bits and pindir store the values for the "set data bits low byte" MPSSE command that
  * sets the initial state and the direction of the I/O pins. The pin offsets are as follows:
- * SCK is bit 0.
- * DO  is bit 1.
- * DI  is bit 2.
- * CS  is bit 3.
+ * TCK/SK is bit 0.
+ * TDI/DO is bit 1.
+ * TDO/DI is bit 2.
+ * TMS/CS is bit 3.
+ * GPIOL0 is bit 4.
+ * GPIOL1 is bit 5.
+ * GPIOL2 is bit 6.
+ * GPIOL3 is bit 7.
+ *
+ * The pin signal direction bit offsets follow the same order; 0 means that
+ * pin at the matching bit index is an input, 1 means pin is an output.
  *
  * The default values (set below) are used for most devices:
  *  value: 0x08  CS=high, DI=low, DO=low, SK=low
@@ -331,19 +338,24 @@ int ft2232_spi_init(void)
 	}
 	free(arg);
 
+	/* Allows setting multiple GPIOL states, for example: csgpiol=012 */
 	arg = extract_programmer_param("csgpiol");
 	if (arg) {
-		char *endptr;
-		unsigned int temp = strtoul(arg, &endptr, 10);
-		if (*endptr || endptr == arg || temp > 3) {
-			msg_perr("Error: Invalid GPIOL specified: \"%s\".\n"
-				 "Valid values are between 0 and 3.\n", arg);
-			free(arg);
-			return -2;
+		unsigned int ngpios = strlen(arg);
+		for (unsigned int i = 0; i <= ngpios; i++) {
+			int temp = arg[i] - '0';
+			if (ngpios == 0 || (ngpios != i && (temp < 0 || temp > 3))) {
+				msg_perr("Error: Invalid GPIOLs specified: \"%s\".\n"
+					 "Valid values are numbers between 0 and 3. "
+					 "Multiple GPIOLs can be specified.\n", arg);
+				free(arg);
+				return -2;
+			} else {
+				unsigned int pin = temp + 4;
+				cs_bits |= 1 << pin;
+				pindir |= 1 << pin;
+			}
 		}
-		unsigned int pin = temp + 4;
-		cs_bits |= 1 << pin;
-		pindir |= 1 << pin;
 	}
 	free(arg);