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| author | Matthew Mets <matt@blinkinlabs.com> | 2021-07-20 01:48:47 +0200 |
|---|---|---|
| committer | Antonio Borneo <borneo.antonio@gmail.com> | 2021-07-31 10:07:44 +0100 |
| commit | dbb10a57d128073cece9ccfc7edc7bb45b220406 (patch) | |
| tree | 146f38da89f6a19504c194ef2de96a318457bab4 /tcl | |
| parent | 44d7cc31dac89d270541bca1c6b7e34d803cbaaf (diff) | |
| download | riscv-openocd-dbb10a57d128073cece9ccfc7edc7bb45b220406.zip riscv-openocd-dbb10a57d128073cece9ccfc7edc7bb45b220406.tar.gz riscv-openocd-dbb10a57d128073cece9ccfc7edc7bb45b220406.tar.bz2 | |
interface/jtag_hat: Add interface configuration for the JTAG HAT
This adds support for the Blinkinlabs JTAG Hat, a Raspberry Pi
expansion board that provides JTAG and SWD connections via level-
shifting buffers.
Change-Id: I228bf6a18890b7c3d6679bbc63bfe39f726d8323
Signed-off-by: Matthew Mets <matt@blinkinlabs.com>
Reviewed-on: http://openocd.zylin.com/6372
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
Diffstat (limited to 'tcl')
| -rw-r--r-- | tcl/interface/jtag_hat_rpi2.cfg | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tcl/interface/jtag_hat_rpi2.cfg b/tcl/interface/jtag_hat_rpi2.cfg new file mode 100644 index 0000000..495ff0f --- /dev/null +++ b/tcl/interface/jtag_hat_rpi2.cfg @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Blinkinlabs JTAG_Hat +# +# https://github.com/blinkinlabs/jtag_hat +# + +adapter driver bcm2835gpio + +bcm2835gpio_peripheral_base 0x3F000000 + +# Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET +# These depend on system clock, calibrated for stock 700MHz +# bcm2835gpio_speed SPEED_COEFF SPEED_OFFSET +bcm2835gpio_speed_coeffs 146203 36 + +# Each of the JTAG lines need a gpio number set: tck tms tdi tdo +# Header pin numbers: 23 22 19 21 +bcm2835gpio_jtag_nums 11 25 10 9 + +# Each of the SWD lines need a gpio number set: swclk swdio +# Header pin numbers: 23 22 +bcm2835gpio_swd_nums 11 25 + +# Direction pin for SWDIO level shifting buffer +bcm2835gpio_swdio_dir_num 6 + +# If you define trst or srst, use appropriate reset_config +# Header pin numbers: TRST - 26, SRST - 18 + +bcm2835gpio_trst_num 7 +#reset_config trst_only + +bcm2835gpio_srst_num 24 +#reset_config srst_only + +# or if you have both connected +#reset_config trst_and_srst |