OTG_SYSCON_1
syscon = omap_readl(OTG_SYSCON_1);
pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1));
omap_writel(syscon, OTG_SYSCON_1);
syscon = omap_readl(OTG_SYSCON_1) & 0xffff;
pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1));
omap_writel(syscon, OTG_SYSCON_1);
tmp = omap_readw(OTG_SYSCON_1);