1#  Copyright (C) 2018 Synopsys, Inc.
2#  SPDX-License-Identifier: Apache-2.0
3#
4
5#
6# Synopsys DesignWare ARC IoT Development Kit
7#
8
9# Configure JTAG cable
10# IoT DK has built-in FT2232 chip, which is similar to Digilent HS-1.
11adapter driver ftdi
12
13# Only specify FTDI serial number if it is specified via
14# "set _ZEPHYR_BOARD_SERIAL 12345" before reading this script
15if { [info exists _ZEPHYR_BOARD_SERIAL] } {
16	ftdi_serial $_ZEPHYR_BOARD_SERIAL
17}
18
19ftdi vid_pid 0x0403 0x6010
20ftdi layout_init 0x0088 0x008b
21ftdi channel 1
22
23
24# EM9D requires 8 MHz.
25adapter speed 8000
26
27# ARCs support only JTAG.
28transport select jtag
29
30source [find cpu/arc/em.tcl]
31
32set _CHIPNAME arc-em
33set _TARGETNAME $_CHIPNAME.cpu
34
35# IOTDK IDENTITY is 0x200444b1
36jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -expected-id 0x200444b1
37
38set _coreid 0
39set _dbgbase [expr {0x00000000 | ($_coreid << 13)}]
40
41target create $_TARGETNAME arcv2 -chain-position $_TARGETNAME \
42  -coreid 0 -dbgbase $_dbgbase -endian little
43
44# There is no SRST, so do a software reset
45$_TARGETNAME configure -event reset-assert "arc_em_reset $_TARGETNAME"
46
47arc_em_init_regs
48