2019-06-20 15:04:33 +08:00
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# Copyright (C) 2019 Synopsys, Inc.
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# SPDX-License-Identifier: Apache-2.0
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#
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#
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# Synopsys DesignWare ARC EM Software Development Platform
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#
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# Configure JTAG cable
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# EM SDP has built-in FT2232 chip, which is similiar to Digilent HS-1.
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2020-12-15 18:29:21 +08:00
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adapter driver ftdi
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2020-02-07 15:03:27 +08:00
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# Only specify FTDI serial number if it is specified via
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# "set _ZEPHYR_BOARD_SERIAL 12345" before reading this script
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if { [info exists _ZEPHYR_BOARD_SERIAL] } {
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ftdi_serial $_ZEPHYR_BOARD_SERIAL
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}
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2019-06-20 15:04:33 +08:00
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ftdi_vid_pid 0x0403 0x6010
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ftdi_layout_init 0x0088 0x008b
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ftdi_channel 0
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# EM11D requires 10 MHz.
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2020-12-15 18:29:21 +08:00
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adapter speed 10000
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2019-06-20 15:04:33 +08:00
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# ARCs support only JTAG.
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transport select jtag
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source [find cpu/arc/em.tcl]
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set _CHIPNAME arc-em
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set _TARGETNAME $_CHIPNAME.cpu
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# EM SDP IDENTITY is 0x200444b1
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2020-02-12 17:23:55 +08:00
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jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -expected-id 0x200044b1
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2019-06-20 15:04:33 +08:00
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set _coreid 0
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set _dbgbase [expr 0x00000000 | ($_coreid << 13)]
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target create $_TARGETNAME arcv2 -chain-position $_TARGETNAME \
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-coreid 0 -dbgbase $_dbgbase -endian little
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# There is no SRST, so do a software reset
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$_TARGETNAME configure -event reset-assert "arc_em_reset $_TARGETNAME"
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2020-02-07 15:03:27 +08:00
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arc_em_init_regs
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