tegra_sflash_readl
status = tegra_sflash_readl(tsd, SPI_STATUS);
status = tegra_sflash_readl(tsd, SPI_STATUS);
status = tegra_sflash_readl(tsd, SPI_STATUS);
u32 x = tegra_sflash_readl(tsd, SPI_RX_FIFO);
status = tegra_sflash_readl(tsd, SPI_STATUS);
tsd->status_reg = tegra_sflash_readl(tsd, SPI_STATUS);
tegra_sflash_readl(tsd, SPI_COMMAND);