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

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2015 - 2016 Xilinx, Inc.
   4 *
   5 * Michal Simek <michal.simek@xilinx.com>
   6 */
   7
   8#include <common.h>
   9#include <image.h>
  10#include <init.h>
  11#include <log.h>
  12#include <spl.h>
  13#include <linux/delay.h>
  14
  15#include <asm/io.h>
  16#include <asm/spl.h>
  17#include <asm/arch/hardware.h>
  18#include <asm/arch/psu_init_gpl.h>
  19#include <asm/arch/sys_proto.h>
  20
  21void board_init_f(ulong dummy)
  22{
  23        board_early_init_f();
  24        board_early_init_r();
  25}
  26
  27static void ps_mode_reset(ulong mode)
  28{
  29        writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
  30               &crlapb_base->boot_pin_ctrl);
  31        udelay(5);
  32        writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT |
  33               mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
  34               &crlapb_base->boot_pin_ctrl);
  35}
  36
  37/*
  38 * Set default PS_MODE1 which is used for USB ULPI phy reset
  39 * Also other resets can be connected to this certain pin
  40 */
  41#ifndef MODE_RESET
  42# define MODE_RESET     PS_MODE1
  43#endif
  44
  45#ifdef CONFIG_SPL_BOARD_INIT
  46void spl_board_init(void)
  47{
  48        preloader_console_init();
  49        ps_mode_reset(MODE_RESET);
  50        board_init();
  51        psu_post_config_data();
  52}
  53#endif
  54
  55void board_boot_order(u32 *spl_boot_list)
  56{
  57        spl_boot_list[0] = spl_boot_device();
  58
  59        if (spl_boot_list[0] == BOOT_DEVICE_MMC1)
  60                spl_boot_list[1] = BOOT_DEVICE_MMC2;
  61        if (spl_boot_list[0] == BOOT_DEVICE_MMC2)
  62                spl_boot_list[1] = BOOT_DEVICE_MMC1;
  63
  64        spl_boot_list[2] = BOOT_DEVICE_RAM;
  65}
  66
  67u32 spl_boot_device(void)
  68{
  69        u32 reg = 0;
  70        u8 bootmode;
  71
  72#if defined(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE_ENABLED)
  73        /* Change default boot mode at run-time */
  74        writel(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE << BOOT_MODE_ALT_SHIFT,
  75               &crlapb_base->boot_mode);
  76#endif
  77
  78        reg = readl(&crlapb_base->boot_mode);
  79        if (reg >> BOOT_MODE_ALT_SHIFT)
  80                reg >>= BOOT_MODE_ALT_SHIFT;
  81
  82        bootmode = reg & BOOT_MODES_MASK;
  83
  84        switch (bootmode) {
  85        case JTAG_MODE:
  86                return BOOT_DEVICE_RAM;
  87#ifdef CONFIG_SPL_MMC_SUPPORT
  88        case SD_MODE1:
  89        case SD1_LSHFT_MODE: /* not working on silicon v1 */
  90                return BOOT_DEVICE_MMC2;
  91        case SD_MODE:
  92        case EMMC_MODE:
  93                return BOOT_DEVICE_MMC1;
  94#endif
  95#ifdef CONFIG_SPL_DFU
  96        case USB_MODE:
  97                return BOOT_DEVICE_DFU;
  98#endif
  99#ifdef CONFIG_SPL_SATA_SUPPORT
 100        case SW_SATA_MODE:
 101                return BOOT_DEVICE_SATA;
 102#endif
 103#ifdef CONFIG_SPL_SPI_SUPPORT
 104        case QSPI_MODE_24BIT:
 105        case QSPI_MODE_32BIT:
 106                return BOOT_DEVICE_SPI;
 107#endif
 108        default:
 109                printf("Invalid Boot Mode:0x%x\n", bootmode);
 110                break;
 111        }
 112
 113        return 0;
 114}
 115
 116#ifdef CONFIG_SPL_OS_BOOT
 117int spl_start_uboot(void)
 118{
 119        return 0;
 120}
 121#endif
 122
 123#ifdef CONFIG_SPL_LOAD_FIT
 124int board_fit_config_name_match(const char *name)
 125{
 126        /* Just empty function now - can't decide what to choose */
 127        debug("%s: %s\n", __func__, name);
 128
 129        return -1;
 130}
 131#endif
 132