target/xtensa: flag additional write-only registers

intsetN, intclearN (for LX8)
mesrclr (for NX)

Signed-off-by: Ian Thompson <ianst@cadence.com>
Change-Id: I0bb59728fcec761a71c4789189f733a10bad6375

src/target/xtensa/xtensa.c

@@ -3966,10 +3966,10 @@ COMMAND_HELPER(xtensa_cmd_xtreg_do, struct xtensa *xtensa)
 			rptr->type = XT_REG_OTHER;
 		}
 
-		/* Register flags */
+		/* Register flags: includes intsetN, intclearN for LX8 */
 		if ((strcmp(rptr->name, "mmid") == 0) || (strcmp(rptr->name, "eraccess") == 0) ||
-			(strcmp(rptr->name, "ddr") == 0) || (strcmp(rptr->name, "intset") == 0) ||
-			(strcmp(rptr->name, "intclear") == 0))
+			(strcmp(rptr->name, "ddr") == 0) || (strncmp(rptr->name, "intset", 6) == 0) ||
+			(strncmp(rptr->name, "intclear", 8) == 0) || (strcmp(rptr->name, "mesrclr") == 0))
 			rptr->flags = XT_REGF_NOREAD;
 		else
 			rptr->flags = 0;