BRCM_RESCAL_START_BIT
writel(reg | BRCM_RESCAL_START_BIT, base + BRCM_RESCAL_START);
if (!(reg & BRCM_RESCAL_START_BIT)) {
writel(reg & ~BRCM_RESCAL_START_BIT, base + BRCM_RESCAL_START);