STMSPER
writel_relaxed(drvdata->stmsper, drvdata->base + STMSPER);
writel_relaxed(0x0, drvdata->base + STMSPER);
stmsper = readl_relaxed(drvdata->base + STMSPER);
writel_relaxed(0x0, drvdata->base + STMSPER);
writel_relaxed(stmsper, drvdata->base + STMSPER);
val = readl_relaxed(drvdata->base + STMSPER);
writel_relaxed(drvdata->stmsper, drvdata->base + STMSPER);
coresight_simple_reg32(sper, STMSPER),