--- /dev/null
+# Copyright (C) 2014-2016,2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#
+# Synopsys DesignWare ARC EM Starter Kit v2.x
+#
+
+# Configure JTAG cable
+# EM Starter Kit has built-in FT2232 chip, which is similiar to Digilent HS-1.
+source [find interface/ftdi/digilent-hs1.cfg]
+
+# 5MHz seems to work good with all cores that might happen in 2.x
+adapter speed 5000
+
+# ARCs support only JTAG.
+transport select jtag
+
+# Configure FPGA. This script supports both LX45 and LX150.
+source [find target/snps_em_sk_fpga.cfg]
--- /dev/null
+# Copyright (C) 2014-2016,2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#
+# Synopsys DesignWare ARC EM Starter Kit v1.0 and v1.1
+#
+
+# Configure JTAG cable
+# EM Starter Kit has built-in FT2232 chip, which is similiar to Digilent HS-1.
+source [find interface/ftdi/digilent-hs1.cfg]
+adapter speed 10000
+
+# ARCs support only JTAG.
+transport select jtag
+
+# Configure FPGA. This script supports both LX45 and LX150.
+source [find target/snps_em_sk_fpga.cfg]
--- /dev/null
+# Copyright (C) 2014-2016,2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#
+# Synopsys DesignWare ARC EM Starter Kit v2.1
+#
+
+# Configure JTAG cable
+# EM Starter Kit has built-in FT2232 chip, which is similiar to Digilent HS-1.
+source [find interface/ftdi/digilent-hs1.cfg]
+
+# JTAG 10MHz is too fast for EM7D FPU in EM SK 2.1 which has core frequency
+# 20MHz. 7.5 MHz seems to work fine.
+adapter speed 7500
+
+# ARCs support only JTAG.
+transport select jtag
+
+# Configure FPGA. This script supports both LX45 and LX150.
+source [find target/snps_em_sk_fpga.cfg]
--- /dev/null
+# Copyright (C) 2016,2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#
+# Synopsys DesignWare ARC EM Starter Kit v2.2
+#
+
+# Configure JTAG cable
+# EM Starter Kit has built-in FT2232 chip, which is similiar to Digilent HS-1.
+source [find interface/ftdi/digilent-hs1.cfg]
+
+# EM11D reportedly requires 5 MHz. Other cores and board can work faster.
+adapter speed 5000
+
+# ARCs support only JTAG.
+transport select jtag
+
+# Configure FPGA. This script supports both LX45 and LX150.
+source [find target/snps_em_sk_fpga.cfg]
--- /dev/null
+# Copyright (C) 2015, 2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Things common to all ARCs
+
+# It is assumed that target is already halted.
+proc arc_common_reset { {target ""} } {
+ if { $target != "" } {
+ targets $target
+ }
+
+ halt
+
+ # 1. Interrupts are disabled (STATUS32.IE)
+ # 2. The status register flags are cleared.
+ # All fields, except the H bit, are set to 0 when the processor is Reset.
+
+ arc jtag set-aux-reg 0xA 0x1
+
+ # 3. The loop count, loop start, and loop end registers are cleared.
+ arc jtag set-core-reg 60 0
+ arc jtag set-aux-reg 0x2 0
+ arc jtag set-aux-reg 0x3 0
+
+ # Program execution begins at the address referenced by the four byte reset
+ # vector located at the interrupt vector base address, which is the first
+ # entry (offset 0x00) in the vector table.
+ set int_vector_base [arc jtag get-aux-reg 0x25]
+ set start_pc ""
+ mem2array start_pc 32 $int_vector_base 1
+ arc jtag set-aux-reg 0x6 $start_pc(0)
+
+ # It is OK to do uncached writes - register cache will be invalidated by
+ # the reset_assert() function.
+}
+
+# vim:expandtab:
--- /dev/null
+# Copyright (C) 2015, 2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+source [find cpu/arc/v2.tcl]
+
+proc arc_em_examine_target { {target ""} } {
+ # Will set current target
+ arc_v2_examine_target $target
+}
+
+proc arc_em_init_regs { } {
+ arc_v2_init_regs
+
+ [target current] configure \
+ -event examine-end "arc_em_examine_target [target current]"
+}
+
+# Scripts in "target" folder should call this function instead of direct
+# invocation of arc_common_reset.
+proc arc_em_reset { {target ""} } {
+ arc_v2_reset $target
+
+ # Set DEBUG.ED bit to enable clock in actionpoint module.
+ # This is specific to ARC EM.
+ set debug [arc jtag get-aux-reg 5]
+ if { !($debug & (1 << 20)) } {
+ arc jtag set-aux-reg 5 [expr $debug | (1 << 20)]
+ }
+}
--- /dev/null
+# Copyright (C) 2015, 2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+source [find cpu/arc/common.tcl]
+
+# Currently 'examine_target' can only read JTAG registers and set properties -
+# but it shouldn't write any of registers - writes will be cached, but cache
+# will be invalidated before flushing after examine_target, and changes will be
+# lost. Perhaps that would be fixed later - perhaps writes shouldn't be cached
+# after all. But if write to register is really needed from TCL - then it
+# should be done via "arc jtag" for now.
+proc arc_v2_examine_target { {target ""} } {
+ # Set current target, because OpenOCD event handlers don't do this for us.
+ if { $target != "" } {
+ targets $target
+ }
+
+ # Those registers always exist. DEBUG and DEBUGI are formally optional,
+ # however they come with JTAG interface, and so far there is no way
+ # OpenOCD can communicate with target without JTAG interface.
+ arc set-reg-exists identity pc status32 bta debug lp_start lp_end \
+ eret erbta erstatus ecr efa
+
+ # 32 core registers
+ arc set-reg-exists \
+ r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 \
+ r13 r14 r15 r16 r17 r18 r19 r20 r21 r22 r23 r24 r25 \
+ gp fp sp ilink r30 blink lp_count pcl
+
+ # DCCM
+ set dccm_version [arc get-reg-field dccm_build version]
+ if { $dccm_version == 3 || $dccm_version == 4 } {
+ arc set-reg-exists aux_dccm
+ }
+
+ # ICCM
+ if { [arc get-reg-field iccm_build version] == 4 } {
+ arc set-reg-exists aux_iccm
+ }
+
+ # MPU
+ if { [arc get-reg-field mpu_build version] >= 2 &&
+ [arc get-reg-field mpu_build version] <= 4 } {
+ arc set-reg-exists mpu_en mpu_ecr
+ set mpu_regions [arc get-reg-field mpu_build regions]
+ for {set i 0} {$i < $mpu_regions} {incr i} {
+ arc set-reg-exists mpu_rdp$i mpu_rdb$i
+ }
+
+ # Secure MPU
+ if { [arc get-reg-field mpu_build version] == 4 } {
+ arc set-reg-exists mpu_index mpu_rstart mpu_rend mpu_rper
+ }
+ }
+}
+
+proc arc_v2_init_regs { } {
+ # XML features
+ set core_feature "org.gnu.gdb.arc.core.v2"
+ set aux_min_feature "org.gnu.gdb.arc.aux-minimal"
+ set aux_other_feature "org.gnu.gdb.arc.aux-other"
+
+ # Describe types
+ # Types are sorted alphabetically according to their name.
+ arc add-reg-type-struct -name ap_build_t -bitfield version 0 7 \
+ -bitfield type 8 11
+ arc add-reg-type-struct -name ap_control_t -bitfield at 0 3 -bitfield tt 4 5 \
+ -bitfield m 6 6 -bitfield p 7 7 -bitfield aa 8 8 -bitfield q 9 9
+ # Cycles field added in version 4.
+ arc add-reg-type-struct -name dccm_build_t -bitfield version 0 7 \
+ -bitfield size0 8 11 -bitfield size1 12 15 -bitfield cycles 17 19
+
+ arc add-reg-type-struct -name debug_t \
+ -bitfield fh 1 1 -bitfield ah 2 2 -bitfield asr 3 10 \
+ -bitfield is 11 11 -bitfield ep 19 19 -bitfield ed 20 20 \
+ -bitfield eh 21 21 -bitfield ra 22 22 -bitfield zz 23 23 \
+ -bitfield sm 24 26 -bitfield ub 28 28 -bitfield bh 29 29 \
+ -bitfield sh 30 30 -bitfield ld 31 31
+
+ arc add-reg-type-struct -name ecr_t \
+ -bitfield parameter 0 7 \
+ -bitfield cause 8 15 \
+ -bitfield vector 16 23 \
+ -bitfield U 30 30 \
+ -bitfield P 31 31
+ arc add-reg-type-struct -name iccm_build_t -bitfield version 0 7 \
+ -bitfield iccm0_size0 8 11 -bitfield iccm1_size0 12 15 \
+ -bitfield iccm0_size1 16 19 -bitfield iccm1_size1 20 23
+ arc add-reg-type-struct -name identity_t \
+ -bitfield arcver 0 7 -bitfield arcnum 8 15 -bitfield chipid 16 31
+ arc add-reg-type-struct -name isa_config_t -bitfield version 0 7 \
+ -bitfield pc_size 8 11 -bitfield lpc_size 12 15 -bitfield addr_size 16 19 \
+ -bitfield b 20 20 -bitfield a 21 21 -bitfield n 22 22 -bitfield l 23 23 \
+ -bitfield c 24 27 -bitfield d 28 31
+ arc add-reg-type-struct -name mpu_build_t -bitfield version 0 7 \
+ -bitfield regions 8 15 \
+ -bitfield s 16 16 \
+ -bitfield i 17 17
+ arc add-reg-type-struct -name mpu_ecr_t \
+ -bitfield MR 0 7 \
+ -bitfield VT 8 9 \
+ -bitfield EC_CODE 16 31
+ arc add-reg-type-struct -name mpu_en_t \
+ -bitfield UE 3 3 -bitfield UW 4 4 -bitfield UR 5 5 \
+ -bitfield KE 6 6 -bitfield KW 7 7 -bitfield KR 8 8 \
+ -bitfield S 15 15 -bitfield SID 16 23 \
+ -bitfield EN 30 30
+ arc add-reg-type-struct -name mpu_index_t \
+ -bitfield I 0 3 -bitfield M 30 30 -bitfield D 31 31
+ arc add-reg-type-struct -name mpu_rper_t \
+ -bitfield V 0 0 \
+ -bitfield UE 3 3 -bitfield UW 4 4 -bitfield UR 5 5 \
+ -bitfield KE 6 6 -bitfield KW 7 7 -bitfield KR 8 8 \
+ -bitfield S 15 15 -bitfield SID 16 23
+ arc add-reg-type-flags -name status32_t \
+ -flag H 0 -flag E0 1 -flag E1 2 -flag E2 3 \
+ -flag E3 4 -flag AE 5 -flag DE 6 -flag U 7 \
+ -flag V 8 -flag C 9 -flag N 10 -flag Z 11 \
+ -flag L 12 -flag DZ 13 -flag SC 14 -flag ES 15 \
+ -flag RB0 16 -flag RB1 17 -flag RB2 18 \
+ -flag AD 19 -flag US 20 -flag IE 31
+
+ # Core registers
+ set core_regs {
+ r0 0 uint32
+ r1 1 uint32
+ r2 2 uint32
+ r3 3 uint32
+ r4 4 uint32
+ r5 5 uint32
+ r6 6 uint32
+ r7 7 uint32
+ r8 8 uint32
+ r9 9 uint32
+ r10 10 uint32
+ r11 11 uint32
+ r12 12 uint32
+ r13 13 uint32
+ r14 14 uint32
+ r15 15 uint32
+ r16 16 uint32
+ r17 17 uint32
+ r18 18 uint32
+ r19 19 uint32
+ r20 20 uint32
+ r21 21 uint32
+ r22 23 uint32
+ r23 24 uint32
+ r24 24 uint32
+ r25 25 uint32
+ gp 26 data_ptr
+ fp 27 data_ptr
+ sp 28 data_ptr
+ ilink 29 code_ptr
+ r30 30 uint32
+ blink 31 code_ptr
+ r32 32 uint32
+ r33 33 uint32
+ r34 34 uint32
+ r35 35 uint32
+ r36 36 uint32
+ r37 37 uint32
+ r38 38 uint32
+ r39 39 uint32
+ r40 40 uint32
+ r41 41 uint32
+ r42 42 uint32
+ r43 43 uint32
+ r44 44 uint32
+ r45 45 uint32
+ r46 46 uint32
+ r47 47 uint32
+ r48 48 uint32
+ r49 49 uint32
+ r50 50 uint32
+ r51 51 uint32
+ r52 52 uint32
+ r53 53 uint32
+ r54 54 uint32
+ r55 55 uint32
+ r56 56 uint32
+ r57 57 uint32
+ accl 58 uint32
+ acch 59 uint32
+ lp_count 60 uint32
+ limm 61 uint32
+ reserved 62 uint32
+ pcl 63 code_ptr
+ }
+ foreach {reg count type} $core_regs {
+ arc add-reg -name $reg -num $count -core -type $type -g \
+ -feature $core_feature
+ }
+
+ # AUX min
+ set aux_min {
+ 0x6 pc code_ptr
+ 0x2 lp_start code_ptr
+ 0x3 lp_end code_ptr
+ 0xA status32 status32_t
+ }
+ foreach {num name type} $aux_min {
+ arc add-reg -name $name -num $num -type $type -feature $aux_min_feature -g
+ }
+
+ # AUX other
+ set aux_other {
+ 0x004 identity identity_t
+ 0x005 debug debug_t
+ 0x018 aux_dccm int
+ 0x208 aux_iccm int
+
+
+ 0x400 eret code_ptr
+ 0x401 erbta code_ptr
+ 0x402 erstatus status32_t
+ 0x403 ecr ecr_t
+ 0x404 efa data_ptr
+
+ 0x409 mpu_en mpu_en_t
+
+ 0x412 bta code_ptr
+
+ 0x420 mpu_ecr mpu_ecr_t
+ 0x422 mpu_rdb0 int
+ 0x423 mpu_rdp0 int
+ 0x424 mpu_rdb1 int
+ 0x425 mpu_rdp1 int
+ 0x426 mpu_rdb2 int
+ 0x427 mpu_rdp2 int
+ 0x428 mpu_rdb3 int
+ 0x429 mpu_rdp3 int
+ 0x42A mpu_rdb4 int
+ 0x42B mpu_rdp4 int
+ 0x42C mpu_rdb5 int
+ 0x42D mpu_rdp5 int
+ 0x42E mpu_rdb6 int
+ 0x42F mpu_rdp6 int
+ 0x430 mpu_rdb7 int
+ 0x431 mpu_rdp7 int
+ 0x432 mpu_rdb8 int
+ 0x433 mpu_rdp8 int
+ 0x434 mpu_rdb9 int
+ 0x435 mpu_rdp9 int
+ 0x436 mpu_rdb10 int
+ 0x437 mpu_rdp10 int
+ 0x438 mpu_rdb11 int
+ 0x439 mpu_rdp11 int
+ 0x43A mpu_rdb12 int
+ 0x43B mpu_rdp12 int
+ 0x43C mpu_rdb13 int
+ 0x43D mpu_rdp13 int
+ 0x43E mpu_rdb14 int
+ 0x43F mpu_rdp14 int
+ 0x440 mpu_rdb15 int
+ 0x441 mpu_rdp15 int
+ 0x448 mpu_index mpu_index_t
+ 0x449 mpu_rstart uint32
+ 0x44A mpu_rend uint32
+ 0x44B mpu_rper mpu_rper_t
+ 0x44C mpu_probe uint32
+ }
+ foreach {num name type} $aux_other {
+ arc add-reg -name $name -num $num -type $type -feature $aux_other_feature
+ }
+
+ # AUX BCR
+ set bcr {
+ 0x6D mpu_build
+ 0x74 dccm_build
+ 0x76 ap_build
+ 0x78 iccm_build
+ 0xC1 isa_config
+ }
+ foreach {num reg} $bcr {
+ arc add-reg -name $reg -num $num -type ${reg}_t -bcr -feature $aux_other_feature
+ }
+
+ [target current] configure \
+ -event examine-end "arc_v2_examine_target [target current]"
+}
+
+proc arc_v2_reset { {target ""} } {
+ arc_common_reset $target
+}
--- /dev/null
+# Copyright (C) 2014-2015,2020 Synopsys, Inc.
+# Anton Kolesov <anton.kolesov@synopsys.com>
+# Didin Evgeniy <didin@synopsys.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#
+# Xilinx Spartan-6 XC6SLX45 FPGA on EM Starter Kit v1.
+# Xilinx Spartan-6 XC6SLX150 FPGA on EM Starter Kit v2.
+#
+
+source [find cpu/arc/em.tcl]
+
+set _CHIPNAME arc-em
+set _TARGETNAME $_CHIPNAME.cpu
+
+# EM SK IDENTITY is 0x200444b1
+# EM SK v2 IDENTITY is 0x200044b1
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -expected-id 0x200444b1 \
+ -expected-id 0x200044b1
+
+set _coreid 0
+set _dbgbase [expr 0x00000000 | ($_coreid << 13)]
+
+target create $_TARGETNAME arcv2 -chain-position $_TARGETNAME \
+ -coreid 0 -dbgbase $_dbgbase -endian little
+
+# There is no SRST, so do a software reset
+$_TARGETNAME configure -event reset-assert "arc_em_reset $_TARGETNAME"
+
+arc_em_init_regs
+
+# vim:ft=tcl
+
projects / fw / openocd / commitdiff