Add BCM2835 (as found in Raspberry Pi) interface driver

[fw/openocd] / tcl / interface / raspberrypi-native.cfg

diff --git a/tcl/interface/raspberrypi-native.cfg b/tcl/interface/raspberrypi-native.cfg
new file mode 100644 (file)
index 0000000..058d80b
--- /dev/null
+++ b/tcl/interface/raspberrypi-native.cfg
@@ -0,0 +1,33 @@
+#
+# Config for using Raspberry Pi'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
+
+# 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 113714 28
+
+# 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
+
+# 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
+