SATA_CONFIGURATION_0
val = readl(tegra->sata_regs + SATA_CONFIGURATION_0);
writel(val, tegra->sata_regs + SATA_CONFIGURATION_0);
val = readl(tegra->sata_regs + SATA_CONFIGURATION_0);
writel(val, tegra->sata_regs + SATA_CONFIGURATION_0);