common/spl/spl_net.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2004
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  *
   6  * (C) Copyright 2012
   7  * Ilya Yanok <ilya.yanok@gmail.com>
   8  */
   9 #include <common.h>
  10 #include <errno.h>
  11 #include <spl.h>
  12 #include <net.h>
  13 #include <linux/libfdt.h>
  14
  15 #if defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USB_ETHER)
  16 static ulong spl_net_load_read(struct spl_load_info *load, ulong sector,
  17                                ulong count, void *buf)
  18 {
  19         debug("%s: sector %lx, count %lx, buf %lx\n",
  20               __func__, sector, count, (ulong)buf);
  21         memcpy(buf, (void *)(load_addr + sector), count);
  22         return count;
  23 }
  24
  25 static int spl_net_load_image(struct spl_image_info *spl_image,
  26                               struct spl_boot_device *bootdev)
  27 {
  28         struct image_header *header = (struct image_header *)load_addr;
  29         int rv;
  30
  31         env_init();
  32         env_relocate();
  33         env_set("autoload", "yes");
  34         rv = eth_initialize();
  35         if (rv == 0) {
  36                 printf("No Ethernet devices found\n");
  37                 return -ENODEV;
  38         }
  39         if (bootdev->boot_device_name)
  40                 env_set("ethact", bootdev->boot_device_name);
  41         rv = net_loop(BOOTP);
  42         if (rv < 0) {
  43                 printf("Problem booting with BOOTP\n");
  44                 return rv;
  45         }
  46
  47         if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
  48             image_get_magic(header) == FDT_MAGIC) {
  49                 struct spl_load_info load;
  50
  51                 debug("Found FIT\n");
  52                 load.bl_len = 1;
  53                 load.read = spl_net_load_read;
  54                 rv = spl_load_simple_fit(spl_image, &load, 0, header);
  55         } else {
  56                 debug("Legacy image\n");
  57
  58                 rv = spl_parse_image_header(spl_image, header);
  59                 if (rv)
  60                         return rv;
  61
  62                 memcpy((void *)spl_image->load_addr, header, spl_image->size);
  63         }
  64
  65         return rv;
  66 }
  67 #endif
  68
  69 #ifdef CONFIG_SPL_ETH_SUPPORT
  70 int spl_net_load_image_cpgmac(struct spl_image_info *spl_image,
  71                               struct spl_boot_device *bootdev)
  72 {
  73 #ifdef CONFIG_SPL_ETH_DEVICE
  74         bootdev->boot_device_name = CONFIG_SPL_ETH_DEVICE;
  75 #endif
  76
  77         return spl_net_load_image(spl_image, bootdev);
  78 }
  79 SPL_LOAD_IMAGE_METHOD("eth device", 0, BOOT_DEVICE_CPGMAC,
  80                       spl_net_load_image_cpgmac);
  81 #endif
  82
  83 #ifdef CONFIG_SPL_USB_ETHER
  84 int spl_net_load_image_usb(struct spl_image_info *spl_image,
  85                            struct spl_boot_device *bootdev)
  86 {
  87         bootdev->boot_device_name = "usb_ether";
  88 #if CONFIG_IS_ENABLED(DM_USB_GADGET)
  89         usb_ether_init();
  90 #endif
  91         return spl_net_load_image(spl_image, bootdev);
  92 }
  93 SPL_LOAD_IMAGE_METHOD("USB eth", 0, BOOT_DEVICE_USBETH, spl_net_load_image_usb);
  94 #endif