X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=tcl%2Ftarget%2Fti_cc3220sf.cfg;h=cf433637687ee7b8d254be625928fdb38aa79d0c;hb=34a6a64920cb9f106a3a12542ac1297229833c1e;hp=f7d9bfe17aab2aff1e67d2584d4b9f1dc3b74609;hpb=d02de3a8a92091b9761ebaf44dff1a71f5b2edcb;p=fw%2Fopenocd

diff --git a/tcl/target/ti_cc3220sf.cfg b/tcl/target/ti_cc3220sf.cfg
index f7d9bfe17..cf4336376 100644
--- a/tcl/target/ti_cc3220sf.cfg
+++ b/tcl/target/ti_cc3220sf.cfg
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 #
 # Texas Instruments CC3220SF - ARM Cortex-M4
 #
@@ -10,3 +12,31 @@ source [find target/ti_cc32xx.cfg]
 
 set _FLASHNAME $_CHIPNAME.flash
 flash bank $_FLASHNAME cc3220sf 0 0 0 0 $_TARGETNAME
+
+#
+# On CC32xx family of devices, sysreqreset is disabled, and vectreset is
+# blocked by the boot loader (stops in a while(1) statement). srst reset can
+# leave the target in a state that prevents debug. The following uses the
+# soft_reset_halt command to reset and halt the target. Then the PC and stack
+# are initialized from internal flash. This allows for a more reliable reset,
+# but with two caveats: it only works for the SF variant that has internal
+# flash, and it only resets the CPU and not any peripherals.
+#
+
+proc ocd_process_reset_inner { MODE } {
+
+	soft_reset_halt
+
+	# Initialize MSP, PSP, and PC from vector table at flash 0x01000800
+	set boot [read_memory 0x01000800 32 2]
+
+	reg msp [lindex $boot 0]
+	reg psp [lindex $boot 0]
+	reg pc [lindex $boot 1]
+
+	if { 0 == [string compare $MODE run ] } {
+		resume
+	}
+
+	cc32xx.cpu invoke-event reset-end
+}