SS_KEY0
writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);
writesl(ss->base + SS_KEY0 + i * 4, &op->key[i], 1);
writel(ss->seed[i], ss->base + SS_KEY0 + i * 4);
v = readl(ss->base + SS_KEY0 + i * 4);