On Sat, Oct 15, 2011 at 03:00:45AM +0900, Samir Ibradžić wrote:
Hello,
I would like to submit a patch, that enables support for another FT2232 device, PicoTAP by GOEPEL electronic GmbH.
Great, thanks a lot!
You forgot the "Signed-off-by" line though, please check
http://flashrom.org/Development_Guidelines and thus also http://www.coreboot.org/Development_Guidelines#Sign-off_Procedure
and resend the (updated) patch. Thanks!
Btw, 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). For the sake of more testing, is there any way 20Mhz can be set in FT2232?
Hm, dunno, need to check datasheets.
I am also thinking about implementing passing frequency divider as an option, for example:
# flashrom -p ft2232_spi:type=picotap,divider=2
DIVIDE_BY constant would be used as default. I think this parameter would be useful, but would like to hear more opinions.
Sounds useful, yes. I don't know if there are reasons not to make this a user-visible option, I'd wait for more feedback here (this would be another patch anyway).
Index: ft2232_spi.c
--- ft2232_spi.c (revision 1450) +++ ft2232_spi.c (working copy) @@ -43,6 +43,9 @@ #define OLIMEX_ARM_OCD_H_PID 0x002B #define OLIMEX_ARM_TINY_H_PID 0x002A
+#define GOEPEL_VID 0x096C +#define PICOTAP_PID 0x1449
const struct usbdev_status devs_ft2232spi[] = { {FTDI_VID, FTDI_FT2232H_PID, OK, "FTDI", "FT2232H"}, {FTDI_VID, FTDI_FT4232H_PID, OK, "FTDI", "FT4232H"}, @@ -53,6 +56,7 @@ {OLIMEX_VID, OLIMEX_ARM_TINY_PID, OK, "Olimex", "ARM-USB-TINY"}, {OLIMEX_VID, OLIMEX_ARM_OCD_H_PID, NT, "Olimex", "ARM-USB-OCD-H"}, {OLIMEX_VID, OLIMEX_ARM_TINY_H_PID, NT, "Olimex", "ARM-USB-TINY-H"},
- {GOEPEL_VID, PICOTAP_PID, OK, "GOEPEL electronic GmbH", "PicoTAP"},
Please sort the entries by vendor ID, then by device ID (we added comment for that sorting a few minutes ago in the repository :)
Also use just "GOEPEL" instead of "GOEPEL electronic GmbH" here, please. We don't include legalese such as "GmbH", "Inc.", etc. in the vendor names.
@@ -66,7 +70,7 @@
- In either case, the divisor is a simple integer clock divider.
- If clock_5x is set, this divisor divides 30MHz, else it divides 6MHz.
*/ -#define DIVIDE_BY 3 /* e.g. '3' will give either 10MHz or 2MHz SPI clock. */ +#define DIVIDE_BY 1 /* e.g. '3' will give either 10MHz or 2MHz SPI clock. */
This should probably not be in the initial patch, but rather in another DIVIDE_BY related patch (see above).
Uwe.