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5 Commits

Author SHA1 Message Date
Marc Schink e57ffd84b8 tcl/interface: Adapt config files to new bcm2835gpio command syntax 
Change-Id: I2d649117aa8dbdf5484ace068785a1416efa3ecc
Signed-off-by: Marc Schink <dev@zapb.de>
Reviewed-on: http://openocd.zylin.com/6397
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
 2021-08-14 13:35:21 +01:00
Antonio Borneo 2aa2ed1d8a tcl: replace command "interface" with "adapter driver" 
Avoid annoying "deprecated" messages while running the scripts
distributed with OpenOCD code.
Change automatically created with command
	sed -i 's/^interface /adapter driver /' $(find tcl/ -type f)

Change-Id: I2291dfb96e164beecbeb3366ce83f9df2ad6c197
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5283
Reviewed-by: Marc Schink <dev@zapb.de>
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
 2020-01-29 05:36:56 +00:00
Paul Fertser 5a98ff786e tcl: interface: harmonise RPi configs 
Make all configs specify same JTAG and SWD GPIO numbers.

Change-Id: I65b09c1671c97f253f0aab88e511de7409d91e0a
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3932
Tested-by: jenkins
 2018-01-30 07:39:24 +00:00
Christoph Pittracher e3f8db54e6 bcm2835gpio: Add SWD support, Raspberry Pi 2 support. 
Added support for SWD transport similar to sysfsgpio driver.
Added configurable peripheral base address to support Raspberry Pi 2.

Change-Id: If76d45fbe74ce49f1f22af72e5f246e973237e04
Signed-off-by: Christoph Pittracher <pitt@segfault.info>
Reviewed-on: http://openocd.zylin.com/2802
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
 2015-08-06 13:16:02 +01:00
Paul Fertser 962b3eb40c Add BCM2835 (as found in Raspberry Pi) interface driver 
This adds support for JTAG programming by bitbanging GPIOs exposed on
the RaspberryPi's expansion header.

Tested by connecting directly to an STM32VLDiscovery board, without any
additional circuity. I observed maximum about 4MHz on the TCK pin with an
old analogue 'scope and about 100kHz when setting the speed to 100kHz.
Busyloop waiting is needed because even with a single 0ns nanosleep call
(with FIFO priority) it lowers the TCK speed to ~30kHz which is way too low
to be useful.

The speed testing with adapter_khz 2000 gave the following results:
sudo chrt -f 1 nice -n -19 ./src/openocd \
     -f interface/raspberrypi-native.cfg \
     -c "set WORKAREASIZE 0x2000" \
     -f target/stm32f1x.cfg -c "adapter_khz 2000"

wrote 131072 bytes from file random.bin in 3.973677s (32.212 KiB/s)
dumped 131072 bytes in 1.445699s (88.538 KiB/s)

This is 3.7 times faster for writing and 14.3 times faster for reading
compared to the generic sysfsgpio driver; probably the writing speed is
limited by the target itself here and reading speed might be considerably
higher too with appropriate connection and a capable target.

BCM2835 name is choosen over BCM2708 because the published peripherals
datasheet uses the particular model name and not family name.

Change-Id: Ib78168be27f53c2a3c88c3dd8154d1190c318c78
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/758
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
 2013-06-10 09:39:48 +00:00