board/rockchip/evb_rk3328/evb-rk3328.c

   1 /*
   2  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/armv8/mmu.h>
   9 #include <dwc3-uboot.h>
  10 #include <power/regulator.h>
  11 #include <usb.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 int board_init(void)
  16 {
  17         int ret;
  18
  19         ret = regulators_enable_boot_on(false);
  20         if (ret)
  21                 debug("%s: Cannot enable boot on regulator\n", __func__);
  22
  23         return ret;
  24 }
  25
  26 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
  27 #include <usb.h>
  28 #include <usb/dwc2_udc.h>
  29
  30 static struct dwc2_plat_otg_data rk3328_otg_data = {
  31         .rx_fifo_sz     = 512,
  32         .np_tx_fifo_sz  = 16,
  33         .tx_fifo_sz     = 128,
  34 };
  35
  36 int board_usb_init(int index, enum usb_init_type init)
  37 {
  38         int node;
  39         const char *mode;
  40         bool matched = false;
  41         const void *blob = gd->fdt_blob;
  42
  43         /* find the usb_otg node */
  44         node = fdt_node_offset_by_compatible(blob, -1,
  45                                         "rockchip,rk3328-usb");
  46
  47         while (node > 0) {
  48                 mode = fdt_getprop(blob, node, "dr_mode", NULL);
  49                 if (mode && strcmp(mode, "otg") == 0) {
  50                         matched = true;
  51                         break;
  52                 }
  53
  54                 node = fdt_node_offset_by_compatible(blob, node,
  55                                         "rockchip,rk3328-usb");
  56         }
  57         if (!matched) {
  58                 debug("Not found usb_otg device\n");
  59                 return -ENODEV;
  60         }
  61
  62         rk3328_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
  63
  64         return dwc2_udc_probe(&rk3328_otg_data);
  65 }
  66
  67 int board_usb_cleanup(int index, enum usb_init_type init)
  68 {
  69         return 0;
  70 }
  71 #endif