flash/nor/at91samd: Use 32-bit register writes for ST-Link compat

[fw/openocd] / tcl / mmr_helpers.tcl

diff --git a/tcl/mmr_helpers.tcl b/tcl/mmr_helpers.tcl
index d9b6e63834678a6c7f791f3cbc67331a2806fcd1..5c37fcfdc138baeb30ddc553ef43270d4a693840 100644 (file)
--- a/tcl/mmr_helpers.tcl
+++ b/tcl/mmr_helpers.tcl
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 proc proc_exists { NAME } {
     set n [info commands $NAME]
@@ -70,3 +71,22 @@ proc show_mmr_bitfield { MSB LSB VAL FIELDNAME FIELDVALUES } {
     }
     echo [format "%-15s: %d (0x%0*x) %s" $FIELDNAME $nval $width $nval $sval ]
 }
+
+# Give: ADDR - address of the register.
+#       BIT - bit's number.
+
+proc get_mmr_bit { ADDR BIT } {
+       set val [memread32 $ADDR]
+       set bit_val [expr {$val & [expr {1 << $BIT}]}]
+       return $bit_val
+}
+
+
+# Give: ADDR - address of the register.
+#       MSB - MSB bit's number.
+#       LSB - LSB bit's number.
+
+proc get_mmr_bitfield { ADDR MSB LSB } {
+       set rval [memread32 $ADDR]
+       return normalize_bitfield $rval $MSB $LSB
+}