LXR uboot/arch/arm/mach-zynq/spl.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2014 - 2017 Xilinx, Inc. Michal Simek
   4 */
   5#include <common.h>
   6#include <debug_uart.h>
   7#include <hang.h>
   8#include <image.h>
   9#include <init.h>
  10#include <log.h>
  11#include <spl.h>
  12
  13#include <asm/io.h>
  14#include <asm/spl.h>
  15#include <asm/arch/hardware.h>
  16#include <asm/arch/sys_proto.h>
  17#include <asm/arch/ps7_init_gpl.h>
  18
  19void board_init_f(ulong dummy)
  20{
  21        ps7_init();
  22
  23        arch_cpu_init();
  24
  25#ifdef CONFIG_DEBUG_UART
  26        /* Uart debug for sure */
  27        debug_uart_init();
  28        puts("Debug uart enabled\n"); /* or printch() */
  29#endif
  30}
  31
  32#ifdef CONFIG_SPL_BOARD_INIT
  33void spl_board_init(void)
  34{
  35        preloader_console_init();
  36#if defined(CONFIG_ARCH_EARLY_INIT_R) && defined(CONFIG_SPL_FPGA)
  37        arch_early_init_r();
  38#endif
  39        board_init();
  40}
  41#endif
  42
  43u32 spl_boot_device(void)
  44{
  45        u32 mode;
  46
  47        switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
  48#ifdef CONFIG_SPL_SPI
  49        case ZYNQ_BM_QSPI:
  50                mode = BOOT_DEVICE_SPI;
  51                break;
  52#endif
  53        case ZYNQ_BM_NAND:
  54                mode = BOOT_DEVICE_NAND;
  55                break;
  56        case ZYNQ_BM_NOR:
  57                mode = BOOT_DEVICE_NOR;
  58                break;
  59#ifdef CONFIG_SPL_MMC
  60        case ZYNQ_BM_SD:
  61                mode = BOOT_DEVICE_MMC1;
  62                break;
  63#endif
  64        case ZYNQ_BM_JTAG:
  65                mode = BOOT_DEVICE_RAM;
  66                break;
  67        default:
  68                puts("Unsupported boot mode selected\n");
  69                hang();
  70        }
  71
  72        return mode;
  73}
  74
  75#ifdef CONFIG_SPL_OS_BOOT
  76int spl_start_uboot(void)
  77{
  78        /* boot linux */
  79        return 0;
  80}
  81#endif
  82
  83void spl_board_prepare_for_boot(void)
  84{
  85        ps7_post_config();
  86        debug("SPL bye\n");
  87}
  88