C++ (Cpp) zynqmp_qspi_init_hw 예제들

예제 #1

파일: zynqmp_gqspi.c 프로젝트: Xilinx/u-boot-xlnx

static int zynqmp_qspi_probe(struct udevice *bus)
{
	struct zynqmp_qspi_platdata *plat = dev_get_platdata(bus);
	struct zynqmp_qspi_priv *priv = dev_get_priv(bus);
#if !defined(CONFIG_ARCH_VERSAL)
	struct clk clk;
	unsigned long clock;
	int ret;
#endif

	debug("%s: bus:%p, priv:%p\n", __func__, bus, priv);

	priv->regs = plat->regs;
	priv->dma_regs = plat->dma_regs;
	priv->is_dual = plat->is_dual;
	priv->io_mode = plat->io_mode;

	if (priv->is_dual == -1) {
		debug("%s: No QSPI device detected based on MIO settings\n",
		      __func__);
		return -1;
	}
#if !defined(CONFIG_ARCH_VERSAL)
	ret = clk_get_by_index(bus, 0, &clk);
	if (ret < 0) {
		dev_err(dev, "failed to get clock\n");
		return ret;
	}

	clock = clk_get_rate(&clk);
	if (IS_ERR_VALUE(clock)) {
		dev_err(dev, "failed to get rate\n");
		return clock;
	}
	debug("%s: CLK %ld\n", __func__, clock);

	ret = clk_enable(&clk);
	if (ret && ret != -ENOSYS) {
		dev_err(dev, "failed to enable clock\n");
		return ret;
	}
	plat->frequency = clock;
	plat->speed_hz = plat->frequency;
#endif

	/* init the zynq spi hw */
	zynqmp_qspi_init_hw(priv);

	return 0;
}

예제 #2

파일: zynqmp_qspi.c 프로젝트: rck2015/u-boot-xlnx

static int zynqmp_qspi_probe(struct udevice *bus)
{
	struct zynqmp_qspi_platdata *plat = dev_get_platdata(bus);
	struct zynqmp_qspi_priv *priv = dev_get_priv(bus);

	debug("zynqmp_qspi_probe:  bus:%p, priv:%p \n", bus, priv);

	priv->regs = plat->regs;
	priv->dma_regs = plat->dma_regs;
	zynqmp_qspi_check_is_dual_flash(priv);

	if (priv->is_dual == -1) {
		debug("%s: No QSPI device detected based on MIO settings\n",
		      __func__);
		return -1;
	}

	/* init the zynq spi hw */
	zynqmp_qspi_init_hw(priv);

	return 0;
}