Exemplo n.º 1
0
int board_usb_init(int index, enum usb_init_type init)
{
	int node;
	const char *mode;
	bool matched = false;
	const void *blob = gd->fdt_blob;

	/* find the usb_otg node */
	node = fdt_node_offset_by_compatible(blob, -1,
					"rockchip,rk3288-usb");

	while (node > 0) {
		mode = fdt_getprop(blob, node, "dr_mode", NULL);
		if (mode && strcmp(mode, "otg") == 0) {
			matched = true;
			break;
		}

		node = fdt_node_offset_by_compatible(blob, node,
					"rockchip,rk3288-usb");
	}
	if (!matched) {
		debug("Not found usb_otg device\n");
		return -ENODEV;
	}
	rk3036_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");

	return dwc2_udc_probe(&rk3036_otg_data);
}
Exemplo n.º 2
0
int board_usb_init(int index, enum usb_init_type init)
{
	int node, phy_node;
	const char *mode;
	bool matched = false;
	const void *blob = gd->fdt_blob;
	u32 grf_phy_offset;

	/* find the usb_otg node */
	node = fdt_node_offset_by_compatible(blob, -1,
					"rockchip,rk3288-usb");

	while (node > 0) {
		mode = fdt_getprop(blob, node, "dr_mode", NULL);
		if (mode && strcmp(mode, "otg") == 0) {
			matched = true;
			break;
		}

		node = fdt_node_offset_by_compatible(blob, node,
					"rockchip,rk3288-usb");
	}
	if (!matched) {
		debug("Not found usb_otg device\n");
		return -ENODEV;
	}
	rk3288_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");

	node = fdtdec_lookup_phandle(blob, node, "phys");
	if (node <= 0) {
		debug("Not found usb phy device\n");
		return -ENODEV;
	}

	phy_node = fdt_parent_offset(blob, node);
	if (phy_node <= 0) {
		debug("Not found usb phy device\n");
		return -ENODEV;
	}

	rk3288_otg_data.phy_of_node = phy_node;
	grf_phy_offset = fdtdec_get_addr(blob, node, "reg");

	/* find the grf node */
	node = fdt_node_offset_by_compatible(blob, -1,
					"rockchip,rk3288-grf");
	if (node <= 0) {
		debug("Not found grf device\n");
		return -ENODEV;
	}
	rk3288_otg_data.regs_phy = grf_phy_offset +
				fdtdec_get_addr(blob, node, "reg");

	return dwc2_udc_probe(&rk3288_otg_data);
}
Exemplo n.º 3
0
int board_usb_init(int index, enum usb_init_type init)
{
	int node[2], count;
	fdt_addr_t addr;

	count = fdtdec_find_aliases_for_id(gd->fdt_blob, "udc",
					   COMPAT_ALTERA_SOCFPGA_DWC2USB,
					   node, 2);
	if (count <= 0)	/* No controller found. */
		return 0;

	addr = fdtdec_get_addr(gd->fdt_blob, node[0], "reg");
	if (addr == FDT_ADDR_T_NONE) {
		printf("UDC Controller has no 'reg' property!\n");
		return -EINVAL;
	}

	/* Patch the address from OF into the controller pdata. */
	socfpga_otg_data.regs_otg = addr;

	return dwc2_udc_probe(&socfpga_otg_data);
}
Exemplo n.º 4
0
int board_usb_init(int index, enum usb_init_type init)
{
	debug("USB_udc_probe\n");
	return dwc2_udc_probe(&s5pc210_otg_data);
}
Exemplo n.º 5
0
int board_usb_init(int index, enum usb_init_type init)
{
	struct fdtdec_phandle_args args;
	struct udevice *dev;
	const void *blob = gd->fdt_blob;
	struct clk clk;
	struct phy phy;
	int node;
	int phy_provider;
	int ret;

	/* find the usb otg node */
	node = fdt_node_offset_by_compatible(blob, -1, "snps,dwc2");
	if (node < 0) {
		debug("Not found usb_otg device\n");
		return -ENODEV;
	}

	if (!fdtdec_get_is_enabled(blob, node)) {
		debug("stm32 usbotg is disabled in the device tree\n");
		return -ENODEV;
	}

	/* Enable clock */
	ret = fdtdec_parse_phandle_with_args(blob, node, "clocks",
					     "#clock-cells", 0, 0, &args);
	if (ret) {
		debug("usbotg has no clocks defined in the device tree\n");
		return ret;
	}

	ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &dev);
	if (ret)
		return ret;

	if (args.args_count != 1) {
		debug("Can't find clock ID in the device tree\n");
		return -ENODATA;
	}

	clk.dev = dev;
	clk.id = args.args[0];

	ret = clk_enable(&clk);
	if (ret) {
		debug("Failed to enable usbotg clock\n");
		return ret;
	}

	/* Reset */
	ret = fdtdec_parse_phandle_with_args(blob, node, "resets",
					     "#reset-cells", 0, 0, &args);
	if (ret) {
		debug("usbotg has no resets defined in the device tree\n");
		goto clk_err;
	}

	ret = uclass_get_device_by_of_offset(UCLASS_RESET, args.node, &dev);
	if (ret || args.args_count != 1)
		goto clk_err;

	usbotg_reset.dev = dev;
	usbotg_reset.id = args.args[0];

	reset_assert(&usbotg_reset);
	udelay(2);
	reset_deassert(&usbotg_reset);

	/* Get USB PHY */
	ret = fdtdec_parse_phandle_with_args(blob, node, "phys",
					     "#phy-cells", 0, 0, &args);
	if (!ret) {
		phy_provider = fdt_parent_offset(blob, args.node);
		ret = uclass_get_device_by_of_offset(UCLASS_PHY,
						     phy_provider, &dev);
		if (ret)
			goto clk_err;

		phy.dev = dev;
		phy.id = fdtdec_get_uint(blob, args.node, "reg", -1);

		ret = generic_phy_power_on(&phy);
		if (ret) {
			debug("unable to power on the phy\n");
			goto clk_err;
		}

		ret = generic_phy_init(&phy);
		if (ret) {
			debug("failed to init usb phy\n");
			goto phy_power_err;
		}
	}

	/* Parse and store data needed for gadget */
	stm32mp_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
	if (stm32mp_otg_data.regs_otg == FDT_ADDR_T_NONE) {
		debug("usbotg: can't get base address\n");
		ret = -ENODATA;
		goto phy_init_err;
	}

	stm32mp_otg_data.rx_fifo_sz = fdtdec_get_int(blob, node,
						     "g-rx-fifo-size", 0);
	stm32mp_otg_data.np_tx_fifo_sz = fdtdec_get_int(blob, node,
							"g-np-tx-fifo-size", 0);
	stm32mp_otg_data.tx_fifo_sz = fdtdec_get_int(blob, node,
						     "g-tx-fifo-size", 0);
	/* Enable voltage level detector */
	if (!(fdtdec_parse_phandle_with_args(blob, node, "usb33d-supply",
					     NULL, 0, 0, &args))) {
		if (!uclass_get_device_by_of_offset(UCLASS_REGULATOR,
						    args.node, &dev)) {
			ret = regulator_set_enable(dev, true);
			if (ret) {
				debug("Failed to enable usb33d\n");
				goto phy_init_err;
			}
		}
	}
		/* Enable vbus sensing */
	setbits_le32(stm32mp_otg_data.regs_otg + STM32MP_GGPIO,
		     STM32MP_GGPIO_VBUS_SENSING);

	return dwc2_udc_probe(&stm32mp_otg_data);

phy_init_err:
	generic_phy_exit(&phy);

phy_power_err:
	generic_phy_power_off(&phy);

clk_err:
	clk_disable(&clk);

	return ret;
}
Exemplo n.º 6
0
int board_usb_init(int index, enum usb_init_type init)
{
	debug("%s: performing dwc2_udc_probe\n", __func__);
	return dwc2_udc_probe(&bcm_otg_data);
}