Esempi in C++ (Cpp) per is_imx27_cspi

Esempio n. 1

File: spi-imx.c Progetto: acton393/linux

static int mx21_config(struct spi_device *spi, struct spi_imx_config *config)
{
	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
	unsigned int reg = MX21_CSPICTRL_ENABLE | MX21_CSPICTRL_MASTER;
	unsigned int max = is_imx27_cspi(spi_imx) ? 16 : 18;

	reg |= spi_imx_clkdiv_1(spi_imx->spi_clk, config->speed_hz, max) <<
		MX21_CSPICTRL_DR_SHIFT;
	reg |= config->bpw - 1;

	if (spi->mode & SPI_CPHA)
		reg |= MX21_CSPICTRL_PHA;
	if (spi->mode & SPI_CPOL)
		reg |= MX21_CSPICTRL_POL;
	if (spi->mode & SPI_CS_HIGH)
		reg |= MX21_CSPICTRL_SSPOL;
	if (spi->cs_gpio < 0)
		reg |= (spi->cs_gpio + 32) << MX21_CSPICTRL_CS_SHIFT;

	writel(reg, spi_imx->base + MXC_CSPICTRL);

	return 0;
}

Esempio n. 2

File: spi-imx.c Progetto: IRT-SystemX/xvisor-next

static int __maybe_unused mx21_config(struct spi_imx_data *spi_imx,
		struct spi_imx_config *config)
{
	unsigned int reg = MX21_CSPICTRL_ENABLE | MX21_CSPICTRL_MASTER;
	int cs = spi_imx->chipselect[config->cs];
	unsigned int max = is_imx27_cspi(spi_imx) ? 16 : 18;

	reg |= spi_imx_clkdiv_1(spi_imx->spi_clk, config->speed_hz, max) <<
		MX21_CSPICTRL_DR_SHIFT;
	reg |= config->bpw - 1;

	if (config->mode & SPI_CPHA)
		reg |= MX21_CSPICTRL_PHA;
	if (config->mode & SPI_CPOL)
		reg |= MX21_CSPICTRL_POL;
	if (config->mode & SPI_CS_HIGH)
		reg |= MX21_CSPICTRL_SSPOL;
	if (cs < 0)
		reg |= (cs + 32) << MX21_CSPICTRL_CS_SHIFT;

	writel(reg, spi_imx->base + MXC_CSPICTRL);

	return 0;
}