| Otavio Salvador | 303cbd2 | 2018-11-30 11:34:15 -0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * (C) Copyright 2015 Google, Inc |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
| 7 | |
| 8 | DECLARE_GLOBAL_DATA_PTR; |
| 9 | |
| 10 | #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG) |
| 11 | #include <usb.h> |
| 12 | #include <usb/dwc2_udc.h> |
| 13 | |
| 14 | static struct dwc2_plat_otg_data rv1108_otg_data = { |
| 15 | .rx_fifo_sz = 512, |
| 16 | .np_tx_fifo_sz = 16, |
| 17 | .tx_fifo_sz = 128, |
| 18 | }; |
| 19 | |
| 20 | int board_usb_init(int index, enum usb_init_type init) |
| 21 | { |
| 22 | const void *blob = gd->fdt_blob; |
| 23 | bool matched = false; |
| 24 | int node, phy_node; |
| 25 | u32 grf_phy_offset; |
| 26 | const char *mode; |
| 27 | |
| 28 | /* find the usb_otg node */ |
| 29 | node = fdt_node_offset_by_compatible(blob, -1, "rockchip,rk3066-usb"); |
| 30 | while (node > 0) { |
| 31 | mode = fdt_getprop(blob, node, "dr_mode", NULL); |
| 32 | if (mode && strcmp(mode, "otg") == 0) { |
| 33 | matched = true; |
| 34 | break; |
| 35 | } |
| 36 | |
| 37 | node = fdt_node_offset_by_compatible(blob, node, |
| 38 | "rockchip,rk3066-usb"); |
| 39 | } |
| 40 | |
| 41 | if (!matched) { |
| 42 | debug("usb_otg device not found\n"); |
| 43 | return -ENODEV; |
| 44 | } |
| 45 | |
| 46 | rv1108_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg"); |
| 47 | |
| 48 | node = fdtdec_lookup_phandle(blob, node, "phys"); |
| 49 | if (node <= 0) { |
| 50 | debug("phys node not found\n"); |
| 51 | return -ENODEV; |
| 52 | } |
| 53 | |
| 54 | phy_node = fdt_parent_offset(blob, node); |
| 55 | if (phy_node <= 0) { |
| 56 | debug("usb phy node not found\n"); |
| 57 | return -ENODEV; |
| 58 | } |
| 59 | |
| 60 | rv1108_otg_data.phy_of_node = phy_node; |
| 61 | grf_phy_offset = fdtdec_get_addr(blob, node, "reg"); |
| 62 | |
| 63 | /* find the grf node */ |
| 64 | node = fdt_node_offset_by_compatible(blob, -1, |
| 65 | "rockchip,rv1108-grf"); |
| 66 | if (node <= 0) { |
| 67 | debug("grf node not found\n"); |
| 68 | return -ENODEV; |
| 69 | } |
| 70 | |
| 71 | rv1108_otg_data.regs_phy = grf_phy_offset + fdtdec_get_addr(blob, node, |
| 72 | "reg"); |
| 73 | |
| 74 | return dwc2_udc_probe(&rv1108_otg_data); |
| 75 | } |
| 76 | |
| 77 | int board_usb_cleanup(int index, enum usb_init_type init) |
| 78 | { |
| 79 | return 0; |
| 80 | } |
| 81 | #endif |