From a09a98db320760f173702d33e795321d5f8b8377 Mon Sep 17 00:00:00 2001 From: Mihai Bojescu Date: Sat, 6 Nov 2021 16:38:09 +0200 Subject: [PATCH] Add support for debugging using a Raspberry Pi 4 Model B --- tcl/interface/raspberrypi4-native.cfg | 40 +++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tcl/interface/raspberrypi4-native.cfg diff --git a/tcl/interface/raspberrypi4-native.cfg b/tcl/interface/raspberrypi4-native.cfg new file mode 100644 index 0000000000..7879733e45 --- /dev/null +++ b/tcl/interface/raspberrypi4-native.cfg @@ -0,0 +1,40 @@ +# +# Config for using Raspberry Pi 4's expansion header +# +# This is best used with a fast enough buffer but also +# is suitable for direct connection if the target voltage +# matches RPi's 3.3V and the cable is short enough. +# +# Do not forget the GND connection, pin 6 of the expansion header. +# + +interface bcm2835gpio + +bcm2835gpio_peripheral_base 0xFE000000 + +# 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 236181 60 +bcm2835gpio_speed_coeffs 236181 60 + +# Each of the JTAG lines need a gpio number set: tck tms tdi tdo +# Header pin numbers: 25 27 26 24 (need to be set in Alt4 mode, might also +# need to have `enable_jtag_gpio=1` set in /boot/firmware/config.txt) +bcm2835gpio_jtag_nums 25 27 26 24 + +# Each of the SWD lines need a gpio number set: swclk swdio +# Header pin numbers: 23 22 +bcm2835gpio_swd_nums 11 25 + +# 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 srst_push_pull + +# or if you have both connected, +# reset_config trst_and_srst srst_push_pull