LXR uboot/arch/arm/mach-omap2/omap5/boot.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * OMAP5 boot
   4 *
   5 * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
   6 */
   7
   8#include <common.h>
   9#include <asm/io.h>
  10#include <asm/omap_common.h>
  11#include <spl.h>
  12
  13static u32 boot_devices[] = {
  14#if defined(CONFIG_DRA7XX)
  15        BOOT_DEVICE_MMC2,
  16        BOOT_DEVICE_NAND,
  17        BOOT_DEVICE_MMC1,
  18        BOOT_DEVICE_SATA,
  19        BOOT_DEVICE_XIP,
  20        BOOT_DEVICE_XIP,
  21        BOOT_DEVICE_SPI,
  22        BOOT_DEVICE_SPI,
  23#else
  24        BOOT_DEVICE_MMC2,
  25        BOOT_DEVICE_NAND,
  26        BOOT_DEVICE_MMC1,
  27        BOOT_DEVICE_SATA,
  28        BOOT_DEVICE_XIP,
  29        BOOT_DEVICE_MMC2,
  30        BOOT_DEVICE_XIPWAIT,
  31#endif
  32};
  33
  34u32 omap_sys_boot_device(void)
  35{
  36        u32 sys_boot;
  37
  38        /* Grab the first 4 bits of the status register for SYS_BOOT. */
  39        sys_boot = readl((u32 *) (*ctrl)->control_status) & ((1 << 4) - 1);
  40
  41        if (sys_boot >= (sizeof(boot_devices) / sizeof(u32)))
  42                return BOOT_DEVICE_NONE;
  43
  44        return boot_devices[sys_boot];
  45}
  46