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 <libfdt.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 #if defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USB_ETHER)
  19 static ulong spl_net_load_read(struct spl_load_info *load, ulong sector,
  20                                ulong count, void *buf)
  21 {
  22         debug("%s: sector %lx, count %lx, buf %lx\n",
  23               __func__, sector, count, (ulong)buf);
  24         memcpy(buf, (void *)(load_addr + sector), count);
  25         return count;
  26 }
  27
  28 static int spl_net_load_image(struct spl_image_info *spl_image,
  29                               struct spl_boot_device *bootdev)
  30 {
  31         struct image_header *header = (struct image_header *)load_addr;
  32         int rv;
  33
  34         env_init();
  35         env_relocate();
  36         env_set("autoload", "yes");
  37         rv = eth_initialize();
  38         if (rv == 0) {
  39                 printf("No Ethernet devices found\n");
  40                 return -ENODEV;
  41         }
  42         if (bootdev->boot_device_name)
  43                 env_set("ethact", bootdev->boot_device_name);
  44         rv = net_loop(BOOTP);
  45         if (rv < 0) {
  46                 printf("Problem booting with BOOTP\n");
  47                 return rv;
  48         }
  49
  50         if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
  51             image_get_magic(header) == FDT_MAGIC) {
  52                 struct spl_load_info load;
  53
  54                 debug("Found FIT\n");
  55                 load.bl_len = 1;
  56                 load.read = spl_net_load_read;
  57                 rv = spl_load_simple_fit(spl_image, &load, 0, header);
  58         } else {
  59                 debug("Legacy image\n");
  60
  61                 rv = spl_parse_image_header(spl_image, header);
  62                 if (rv)
  63                         return rv;
  64
  65                 memcpy((void *)spl_image->load_addr, header, spl_image->size);
  66         }
  67
  68         return rv;
  69 }
  70 #endif
  71
  72 #ifdef CONFIG_SPL_ETH_SUPPORT
  73 int spl_net_load_image_cpgmac(struct spl_image_info *spl_image,
  74                               struct spl_boot_device *bootdev)
  75 {
  76 #ifdef CONFIG_SPL_ETH_DEVICE
  77         bootdev->boot_device_name = CONFIG_SPL_ETH_DEVICE;
  78 #endif
  79
  80         return spl_net_load_image(spl_image, bootdev);
  81 }
  82 SPL_LOAD_IMAGE_METHOD("eth device", 0, BOOT_DEVICE_CPGMAC,
  83                       spl_net_load_image_cpgmac);
  84 #endif
  85
  86 #ifdef CONFIG_SPL_USB_ETHER
  87 int spl_net_load_image_usb(struct spl_image_info *spl_image,
  88                            struct spl_boot_device *bootdev)
  89 {
  90         bootdev->boot_device_name = "usb_ether";
  91
  92         return spl_net_load_image(spl_image, bootdev);
  93 }
  94 SPL_LOAD_IMAGE_METHOD("USB eth", 0, BOOT_DEVICE_USBETH, spl_net_load_image_usb);
  95 #endif