static int dwc_ahci_probe(struct udevice *dev) { struct dwc_ahci_priv *priv = dev_get_priv(dev); int ret; struct phy phy; ret = generic_phy_get_by_name(dev, "sata-phy", &phy); if (ret) { error("can't get the phy from DT\n"); return ret; } ret = generic_phy_init(&phy); if (ret) { error("unable to initialize the sata phy\n"); return ret; } ret = generic_phy_power_on(&phy); if (ret) { error("unable to power on the sata phy\n"); return ret; } if (priv->wrapper_base) { u32 val = TI_SATA_IDLE_NO | TI_SATA_STANDBY_NO; /* Enable SATA module, No Idle, No Standby */ writel(val, priv->wrapper_base + TI_SATA_SYSCONFIG); } ret = ahci_init_dm(dev, priv->base); if (ret) return ret; return achi_start_ports_dm(dev); }
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; }