DART_TCR
dart->save_tcr[sid] = readl(dart->regs + DART_TCR(dart, sid));
writel(dart->save_tcr[sid], dart->regs + DART_TCR(dart, sid));
writel(tcr, dart->regs + DART_TCR(dart, sid));
writel(dart->hw->tcr_disabled, dart->regs + DART_TCR(dart, sid));
dart->regs + DART_TCR(dart, sid));