This is an automated email from Gerrit.
"Name of user not set <m...@electricworry.net>" just uploaded a new patch set
to Gerrit, which you can find at https://review.openocd.org/c/openocd/+/8938
-- gerrit
commit a341106452002a4d8669591534df3e593b9cf76f
Author: Electric Worry <m...@electricworry.net>
Date: Thu May 29 11:31:59 2025 +0100
tcl/board/orange_pi_zero_3: Add Orange Pi Zero 3 board
The Orange Pi Zero 3 is an SBC that uses an Allwinner H618
SoC. As such, JTAG support is fully available, however the
SoC multiplexes JTAG function with UART1 and microSD.
Unfortunately Xunlong has used UART1 for the Wifi-BT
chip, leaving JTAG accessible only via the microSD using
a microSD breakout board (for example).
Change-Id: I0dc078cd2f3176815271917eb5e948cc8ef94525
Signed-off-by: Electric Worry <m...@electricworry.net>
diff --git a/tcl/board/orange_pi_zero_3.cfg b/tcl/board/orange_pi_zero_3.cfg
new file mode 100644
index 0000000000..2af983c650
--- /dev/null
+++ b/tcl/board/orange_pi_zero_3.cfg
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# This is the Orange Pi Zero 3 board with Allwinner H618 chip
+#
http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero-3.html
+#
+# Accessing JTAG signals on Orange Pi Zero 3 board requires connection to pins
+# on the microSD card slot.
+# 1 - DAT2 - TCK
+# 2 - CD/DAT3 - NC
+# 3 - CMD - TDO
+# 4 - VDD - NC
+# 5 - CLK - NC
+# 6 - VSS - NC
+# 7 - DAT0 - TDI
+# 8 - DAT1 - TMS
+#
+# PF Configure Register 0 at address 0x0300b0b4 must be set 0x07373733 to set
+# the JTAG function on these pins (which is what the factory installed image on
+# the SPI flash does when the board is powered without a microSD inserted).
+
+source [find target/allwinner_h618.cfg]
+
+# To this contributor's knowledge, the board neither exposes TRST nor SRST.
+reset_config none
--
