From 6962da00287c88c3fa89df8a8623a956735379db Mon Sep 17 00:00:00 2001 From: Antonio Borneo Date: Thu, 2 Apr 2020 00:14:21 +0200 Subject: [PATCH] tcl/interface: add example of linuxgpiod through dln-2 The USB adapter DLN-2 provides 32 GPIO (beside I2C, SPI, ...). Use the first 6 GPIO for a SWD/JTAG bitbanging example through linuxgpiod driver. Change-Id: I229c2078142ec648fc6430b5d123539045dcfbda Signed-off-by: Antonio Borneo Reviewed-on: http://openocd.zylin.com/5561 Tested-by: jenkins --- tcl/interface/dln-2-gpiod.cfg | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 tcl/interface/dln-2-gpiod.cfg diff --git a/tcl/interface/dln-2-gpiod.cfg b/tcl/interface/dln-2-gpiod.cfg new file mode 100644 index 0000000000..1859688be3 --- /dev/null +++ b/tcl/interface/dln-2-gpiod.cfg @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +# Use DLN-2 GPIO through linuxgpiod +# +# +-----------+-------------+-------------+ +# | signal | DLN-2 | gpio offset | +# +-----------+-------------+-------------+ +# | nSRST | J3.1 (PA0) | 0 | +# | TDO | J3.2 (PA1) | 1 | +# | TCK/SWCLK | J3.3 (PA2) | 2 | +# | TMS/SWDIO | J3.4 (PA3) | 3 | +# | TDI | J3.5 (PA4) | 4 | +# | nTRST | J3.6 (PA5) | 5 | +# | GND | J3.12 (GND) | | +# +-----------+-------------+-------------+ + +adapter driver linuxgpiod + +linuxgpiod_gpiochip 0 +linuxgpiod_jtag_nums 2 3 4 1 +linuxgpiod_trst_num 5 +linuxgpiod_swd_nums 2 3 +linuxgpiod_srst_num 0 + +reset_config trst_and_srst separate srst_push_pull -- 2.30.2