62 lines
1.8 KiB
INI
62 lines
1.8 KiB
INI
# SPDX-License-Identifier: GPL-2.0-or-later
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# ATMEL SAMV, SAMS, and SAME chips are Cortex-M7 parts
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# The chips are very similar; the SAMV series just has
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# more peripherals and seems like the "flagship" of the
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# family. This script will work for all of them.
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source [find target/swj-dp.tcl]
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME samv
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}
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if { [info exists ENDIAN] } {
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set _ENDIAN $ENDIAN
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} else {
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set _ENDIAN little
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}
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# Work-area is a space in RAM used for flash programming
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# By default use 16kB
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if { [info exists WORKAREASIZE] } {
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set _WORKAREASIZE $WORKAREASIZE
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} else {
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set _WORKAREASIZE 0x4000
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}
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if { [info exists CPUTAPID] } {
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set _CPUTAPID $CPUTAPID
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} else {
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set _CPUTAPID 0x0bd11477
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}
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swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
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dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
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set _TARGETNAME $_CHIPNAME.cpu
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target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
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$_TARGETNAME configure -work-area-phys 0x20400000 -work-area-size $_WORKAREASIZE -work-area-backup 0
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adapter speed 1800
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if {![using_hla]} {
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# if srst is not fitted use SYSRESETREQ to
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# perform a soft reset
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cortex_m reset_config sysresetreq
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# Set CSW[27], which according to ARM ADI v5 appendix E1.4 maps to AHB signal
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# HPROT[3], which according to AMBA AHB/ASB/APB specification chapter 3.7.3
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# makes the data access cacheable. This allows reading and writing data in the
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# CPU cache from the debugger, which is far more useful than going straight to
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# RAM when operating on typical variables, and is generally no worse when
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# operating on special memory locations.
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$_CHIPNAME.dap apcsw 0x08000000 0x08000000
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}
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set _FLASHNAME $_CHIPNAME.flash
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flash bank $_FLASHNAME atsamv 0x00400000 0 0 0 $_TARGETNAME
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