+ writel(0x15040000 | (readl(&dev->uregs->misc_ctl) & 0x00020000), &dev->uregs->misc_ctl);
+
+ if (readl(&dev->uregs->misc_ctl) & 0x00020000) {
+ debug ("System Controller!\n"); /* test-only */
+ } else {
+ debug ("Not System Controller!\n"); /* test-only */
+ }