Changeset 1453

Timestamp:

10/21/11 01:14:10 (7 months ago)

Author:

uwe

Message:

Add support for the GOEPEL PicoTAP programmer.

 http://www.goepel.com/en/jtagboundary-scan/hardware/picotap.html

This device is actually a JTAG adapter, but since it uses standard
FT2232 A interface pins, it can be easily used as SPI programmer
(tested it here successfully). PicoTAP supports only 5V output, so one
needs to reduce this to 3.3V in a same manner as DLP Design DLP-USB1232H, see

 http://flashrom.org/FT2232SPI_Programmer#DLP_Design_DLP-USB1232H

for details.

The PicoTAP pin-out is as follows:

PicoTAP | SPI

---------+-------

TCK | SCLK
TMS | CS#
TDI | SO
TDO | SI

/TRST | -

GND | GND
+5V | VCC, HOLD# & WP# after 3.3V regulator

I managed to run PicoTAP in 10MHz, 15MHz and 30MHz modes (by forcing
DIVIDE_BY), against SST25VF016B SPI flash, read/write/erase all worked
fine (write seems somewhat slow).

Signed-off-by: Samir Ibradžić <sibradzic@…>
Acked-by: Uwe Hermann <uwe@…>

Location:

trunk

Files:

• flashrom.8 (modified) (2 diffs)
• ft2232_spi.c (modified) (3 diffs)
• util/z60_flashrom.rules (modified) (1 diff)

trunk/flashrom.8

@@ -200 +200 @@
 FTDI FT2232H Mini-Module, FTDI FT4232H Mini-Module, openbiosprog-spi, Amontec \
 JTAGkey/JTAGkey-tiny/JTAGkey-2, Dangerous Prototypes Bus Blaster, \
-Olimex ARM-USB-TINY/-H, Olimex ARM-USB-OCD/-H, and TIAO/DIYGADGET USB
-Multi-Protocol Adapter (TUMPA).
+Olimex ARM-USB-TINY/-H, Olimex ARM-USB-OCD/-H, TIAO/DIYGADGET USB
+Multi-Protocol Adapter (TUMPA), and GOEPEL PicoTAP.
 .sp
 .BR "* serprog" " (for flash ROMs attached to a programmer speaking serprog), \
@@ -444 +444 @@
 .BR 2232H ", " 4232H ", " jtagkey ", " busblaster ", " openmoko ", " \
 arm-usb-tiny ", " arm-usb-tiny-h ", " arm-usb-ocd ", " arm-usb-ocd-h \
-", or " tumpa
+", " tumpa ", or " picotap
 and
 .B interface

trunk/ft2232_spi.c

@@ -38 +38 @@
 #define AMONTEC_JTAGKEY_PID     0xCFF8
 
+#define GOEPEL_VID              0x096C
+#define GOEPEL_PICOTAP_PID      0x1449
+
 #define FIC_VID                 0x1457
 #define OPENMOKO_DBGBOARD_PID   0x5118
@@ -52 +55 @@
         {FTDI_VID, TIAO_TUMPA_PID, OK, "TIAO", "USB Multi-Protocol Adapter"},
         {FTDI_VID, AMONTEC_JTAGKEY_PID, OK, "Amontec", "JTAGkey"},
+        {GOEPEL_VID, GOEPEL_PICOTAP_PID, OK, "GOEPEL", "PicoTAP"},
         {FIC_VID, OPENMOKO_DBGBOARD_PID, OK, "FIC",
                 "OpenMoko Neo1973 Debug board (V2+)"},
@@ -177 +181 @@
                         cs_bits = 0x18;
                         pindir = 0x1b;
+                } else if (!strcasecmp(arg, "picotap")) {
+                        ft2232_vid = GOEPEL_VID;
+                        ft2232_type = GOEPEL_PICOTAP_PID;
+                        ft2232_interface = INTERFACE_A;
                 } else if (!strcasecmp(arg, "tumpa")) {
                         /* Interface A is SPI1, B is SPI2. */

trunk/util/z60_flashrom.rules

@@ -57 +57 @@
 ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6011", MODE="664", GROUP="plugdev"
 
+# GOEPEL PicoTAP
+# http://www.goepel.com/jtagboundary-scan/hardware/picotap.html
+ATTRS{idVendor}=="096c", ATTRS{idProduct}=="1449", MODE="664", GROUP="plugdev"
+
 # Olimex ARM-USB-OCD
 # http://olimex.com/dev/arm-usb-ocd.html