GREG_CFG
writel(cfg, gp->regs + GREG_CFG);
if (!(readl(gp->regs + GREG_CFG) & GREG_CFG_IBURST)) {
writel(cfg, gp->regs + GREG_CFG);
hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST64);
hme_write32(hp, gregs + GREG_CFG, gcfg);
hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST32);
hme_write32(hp, gregs + GREG_CFG, GREG_CFG_BURST16);
hme_write32(hp, gregs + GREG_CFG, 0);
hme_read32(hp, gregs + GREG_CFG), bursts);