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