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"Das U-Boot" Source Tree
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 <env.h>
10#include <errno.h>
11#include <image.h>
12#include <log.h>
13#include <spl.h>
14#include <spl_load.h>
15#include <net.h>
16#include <linux/libfdt.h>
17
18#if defined(CONFIG_SPL_ETH) || defined(CONFIG_SPL_USB_ETHER)
19static 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, map_sysmem(image_load_addr + sector, count), count);
25 return count;
26}
27
28static int spl_net_load_image(struct spl_image_info *spl_image,
29 struct spl_boot_device *bootdev)
30{
31 struct spl_load_info load;
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 spl_load_init(&load, spl_net_load_read, NULL, 1);
51 return spl_load(spl_image, bootdev, &load, 0, 0);
52}
53#endif
54
55#ifdef CONFIG_SPL_ETH
56int spl_net_load_image_cpgmac(struct spl_image_info *spl_image,
57 struct spl_boot_device *bootdev)
58{
59#ifdef CONFIG_SPL_ETH_DEVICE
60 bootdev->boot_device_name = CONFIG_SPL_ETH_DEVICE;
61#endif
62
63 return spl_net_load_image(spl_image, bootdev);
64}
65SPL_LOAD_IMAGE_METHOD("eth device", 0, BOOT_DEVICE_CPGMAC,
66 spl_net_load_image_cpgmac);
67#endif
68
69#ifdef CONFIG_SPL_USB_ETHER
70int spl_net_load_image_usb(struct spl_image_info *spl_image,
71 struct spl_boot_device *bootdev)
72{
73 bootdev->boot_device_name = "usb_ether";
74#if CONFIG_IS_ENABLED(DM_USB_GADGET)
75 usb_ether_init();
76#endif
77 return spl_net_load_image(spl_image, bootdev);
78}
79SPL_LOAD_IMAGE_METHOD("USB eth", 0, BOOT_DEVICE_USBETH, spl_net_load_image_usb);
80#endif