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diff --git a/tcl/cpld/altera-maxii.cfg b/tcl/cpld/altera-maxii.cfg
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+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Altera MAXII CPLD
+
+if { [info exists CHIPNAME] } {
+ set _CHIPNAME $CHIPNAME
+} else {
+ set _CHIPNAME maxii
+}
+
+# see MAX II Device Handbook
+# Table 3-3: 32-Bit MAX II Device IDCODE
+# Version Part Number Manuf. ID LSB
+# 0000 0010 0000 1010 0001 000 0110 1110 1
+jtag newtap $_CHIPNAME tap -irlen 10 \
+ -expected-id 0x020a10dd \
+ -expected-id 0x020a20dd \
+ -expected-id 0x020a30dd \
+ -expected-id 0x020a40dd \
+ -expected-id 0x020a50dd \
+ -expected-id 0x020a60dd