STMSPSCR
writel_relaxed(drvdata->stmspscr, drvdata->base + STMSPSCR);
val = readl_relaxed(drvdata->base + STMSPSCR);
writel_relaxed(drvdata->stmspscr, drvdata->base + STMSPSCR);
coresight_simple_reg32(spscr, STMSPSCR),