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Add support for the GOEPEL PicoTAP programmer

Browse Source 
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).

Corresponding to flashrom svn r1453.

Signed-off-by: Samir Ibradžić <sibradzic@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Samir Ibradžić 2011-10-20 23:14:10 +00:00 committed by Uwe Hermann
parent d0c5dc23e2
commit 7189a5ff8c
3 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
flashrom.8
View File

@ -199,8 +199,8 @@ cards)"
based USB SPI programmer), including the DLP Design DLP-USB1232H, \
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), \
including AVR flasher by Urja Rannikko, AVR flasher by eightdot, \
@ -443,7 +443,7 @@ syntax where
can be
.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
can be

8
ft2232_spi.c
View File

@ -37,6 +37,9 @@
#define TIAO_TUMPA_PID 0x8a98
#define AMONTEC_JTAGKEY_PID 0xCFF8
#define GOEPEL_VID 0x096C
#define GOEPEL_PICOTAP_PID 0x1449
#define FIC_VID 0x1457
#define OPENMOKO_DBGBOARD_PID 0x5118
@ -51,6 +54,7 @@ const struct usbdev_status devs_ft2232spi[] = {
{FTDI_VID, FTDI_FT4232H_PID, OK, "FTDI", "FT4232H"},
{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+)"},
{OLIMEX_VID, OLIMEX_ARM_OCD_PID, NT, "Olimex", "ARM-USB-OCD"},
@ -176,6 +180,10 @@ int ft2232_spi_init(void)
ft2232_interface = INTERFACE_A;
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. */
ft2232_type = TIAO_TUMPA_PID;

4
util/z60_flashrom.rules
View File

@ -56,6 +56,10 @@ ATTRS{idVendor}=="1457", ATTRS{idProduct}=="5118", MODE="664", GROUP="plugdev"
# http://www.ftdichip.com/Products/EvaluationKits/FT4232H_MiniModule.htm
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
ATTRS{idVendor}=="15ba", ATTRS{idProduct}=="0003", MODE="664", GROUP="plugdev"