ALTERA_SPI_SLAVE_SEL 68 drivers/spi/spi-altera.c writel(0, hw->base + ALTERA_SPI_SLAVE_SEL); ALTERA_SPI_SLAVE_SEL 70 drivers/spi/spi-altera.c writel(BIT(spi->chip_select), hw->base + ALTERA_SPI_SLAVE_SEL);