From 0c28006cf2cf2d98ba2d73a73bf629e781f4ffb8 Mon Sep 17 00:00:00 2001
From: Kyle Schwarz <zeranoe@gmail.com>
Date: Sun, 10 Jul 2022 15:58:14 -0400
Subject: [PATCH] flash/nor/avrf: add ATmega32U4 support

Add new chip info and tcl target

Change-Id: Ib9d33d1b145a8659857b7a6cc9c5acba047f41d1
Signed-off-by: Kyle Schwarz <zeranoe@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7081
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
---
 src/flash/nor/avrf.c      |  1 +
 tcl/target/atmega32u4.cfg | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 tcl/target/atmega32u4.cfg

diff --git a/src/flash/nor/avrf.c b/src/flash/nor/avrf.c
index 0e2e263ce..1d317a10c 100644
--- a/src/flash/nor/avrf.c
+++ b/src/flash/nor/avrf.c
@@ -64,6 +64,7 @@ static const struct avrf_type avft_chips_info[] = {
 	{"atmega324pa", 0x9511, 128, 256, 4, 256},
 	{"atmega644p", 0x960a, 256, 256, 8, 256},
 	{"atmega1284p", 0x9705, 256, 512, 8, 512},
+	{"atmega32u4", 0x9587, 128, 256, 4, 256},
 };
 
 /* avr program functions */
diff --git a/tcl/target/atmega32u4.cfg b/tcl/target/atmega32u4.cfg
new file mode 100644
index 000000000..9199c741e
--- /dev/null
+++ b/tcl/target/atmega32u4.cfg
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# ATmega32U4
+
+if { [info exists CHIPNAME] } {
+   set _CHIPNAME $CHIPNAME
+} else {
+   set _CHIPNAME avr
+}
+
+if { [info exists ENDIAN] } {
+   set _ENDIAN $ENDIAN
+} else {
+   set _ENDIAN little
+}
+
+if { [info exists CPUTAPID] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x4958703f
+}
+
+adapter speed 4500
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME avr -endian $_ENDIAN -chain-position $_TARGETNAME
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME avr 0 0 0 0 $_TARGETNAME