LXR uboot/arch/arm/mach-socfpga/board.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Altera SoCFPGA common board code
   4 *
   5 * Copyright (C) 2015 Marek Vasut <marex@denx.de>
   6 */
   7
   8#include <common.h>
   9#include <errno.h>
  10#include <fdtdec.h>
  11#include <asm/arch/reset_manager.h>
  12#include <asm/arch/clock_manager.h>
  13#include <asm/arch/misc.h>
  14#include <asm/io.h>
  15
  16#include <usb.h>
  17#include <usb/dwc2_udc.h>
  18
  19DECLARE_GLOBAL_DATA_PTR;
  20
  21void s_init(void) {
  22#ifndef CONFIG_ARM64
  23        /*
  24         * Preconfigure ACTLR and CPACR, make sure Write Full Line of Zeroes
  25         * is disabled in ACTLR.
  26         * This is optional on CycloneV / ArriaV.
  27         * This is mandatory on Arria10, otherwise Linux refuses to boot.
  28         */
  29        asm volatile(
  30                "mcr p15, 0, %0, c1, c0, 1\n"
  31                "mcr p15, 0, %0, c1, c0, 2\n"
  32                "isb\n"
  33                "dsb\n"
  34        ::"r"(0x0));
  35#endif
  36}
  37
  38/*
  39 * Miscellaneous platform dependent initialisations
  40 */
  41int board_init(void)
  42{
  43        /* Address of boot parameters for ATAG (if ATAG is used) */
  44        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  45
  46        return 0;
  47}
  48
  49int dram_init_banksize(void)
  50{
  51        fdtdec_setup_memory_banksize();
  52
  53        return 0;
  54}
  55
  56#ifdef CONFIG_USB_GADGET
  57struct dwc2_plat_otg_data socfpga_otg_data = {
  58        .usb_gusbcfg    = 0x1417,
  59};
  60
  61int board_usb_init(int index, enum usb_init_type init)
  62{
  63        int node[2], count;
  64        fdt_addr_t addr;
  65
  66        count = fdtdec_find_aliases_for_id(gd->fdt_blob, "udc",
  67                                           COMPAT_ALTERA_SOCFPGA_DWC2USB,
  68                                           node, 2);
  69        if (count <= 0) /* No controller found. */
  70                return 0;
  71
  72        addr = fdtdec_get_addr(gd->fdt_blob, node[0], "reg");
  73        if (addr == FDT_ADDR_T_NONE) {
  74                printf("UDC Controller has no 'reg' property!\n");
  75                return -EINVAL;
  76        }
  77
  78        /* Patch the address from OF into the controller pdata. */
  79        socfpga_otg_data.regs_otg = addr;
  80
  81        return dwc2_udc_probe(&socfpga_otg_data);
  82}
  83
  84int g_dnl_board_usb_cable_connected(void)
  85{
  86        return 1;
  87}
  88#endif
  89