common/spl/spl_net.c

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