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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Stefan Agner22802f42016-12-23 07:51:53 +01002/*
3 * (C) Copyright 2016
4 * Xilinx, Inc.
5 *
6 * (C) Copyright 2016
7 * Toradex AG
8 *
9 * Michal Simek <michal.simek@xilinx.com>
10 * Stefan Agner <stefan.agner@toradex.com>
Stefan Agner22802f42016-12-23 07:51:53 +010011 */
12#include <common.h>
Simon Glassdfce1792017-11-13 18:55:04 -070013#include <binman_sym.h>
Simon Glass4d72caa2020-05-10 11:40:01 -060014#include <image.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060015#include <log.h>
Simon Glassdfce1792017-11-13 18:55:04 -070016#include <mapmem.h>
Stefan Agner22802f42016-12-23 07:51:53 +010017#include <spl.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090018#include <linux/libfdt.h>
Stefan Agner22802f42016-12-23 07:51:53 +010019
20#ifndef CONFIG_SPL_LOAD_FIT_ADDRESS
21# define CONFIG_SPL_LOAD_FIT_ADDRESS 0
22#endif
23
24static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
25 ulong count, void *buf)
26{
Philippe Reynes2404a012022-03-28 22:57:01 +020027 ulong addr;
28
Stefan Agner22802f42016-12-23 07:51:53 +010029 debug("%s: sector %lx, count %lx, buf %lx\n",
30 __func__, sector, count, (ulong)buf);
Philippe Reynes2404a012022-03-28 22:57:01 +020031
32 addr = (ulong)CONFIG_SPL_LOAD_FIT_ADDRESS + sector;
33 if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD))
34 addr += image_load_offset;
35
36 memcpy(buf, (void *)addr, count);
37
Stefan Agner22802f42016-12-23 07:51:53 +010038 return count;
39}
40
41static int spl_ram_load_image(struct spl_image_info *spl_image,
42 struct spl_boot_device *bootdev)
43{
Simon Glassf3543e62022-09-06 20:26:52 -060044 struct legacy_img_hdr *header;
Stefan Agner22802f42016-12-23 07:51:53 +010045
Simon Glassf3543e62022-09-06 20:26:52 -060046 header = (struct legacy_img_hdr *)CONFIG_SPL_LOAD_FIT_ADDRESS;
Stefan Agner22802f42016-12-23 07:51:53 +010047
Philippe Reynes2404a012022-03-28 22:57:01 +020048 if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD)) {
49 unsigned long addr = (unsigned long)header;
50 int ret = image_pre_load(addr);
51
52 if (ret)
53 return ret;
54
55 addr += image_load_offset;
Simon Glassf3543e62022-09-06 20:26:52 -060056 header = (struct legacy_img_hdr *)addr;
Philippe Reynes2404a012022-03-28 22:57:01 +020057 }
58
Andrew F. Davis6536ca42019-01-17 13:43:02 -060059#if CONFIG_IS_ENABLED(DFU)
Stefan Agner22802f42016-12-23 07:51:53 +010060 if (bootdev->boot_device == BOOT_DEVICE_DFU)
61 spl_dfu_cmd(0, "dfu_alt_info_ram", "ram", "0");
62#endif
63
64 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
65 image_get_magic(header) == FDT_MAGIC) {
66 struct spl_load_info load;
67
68 debug("Found FIT\n");
69 load.bl_len = 1;
70 load.read = spl_ram_load_read;
71 spl_load_simple_fit(spl_image, &load, 0, header);
72 } else {
Alper Nebi Yasakd7f07172022-06-18 15:13:06 +030073 ulong u_boot_pos = spl_get_image_pos();
Simon Glassdfce1792017-11-13 18:55:04 -070074
Stefan Agner22802f42016-12-23 07:51:53 +010075 debug("Legacy image\n");
76 /*
77 * Get the header. It will point to an address defined by
78 * handoff which will tell where the image located inside
Simon Glassdfce1792017-11-13 18:55:04 -070079 * the flash.
Stefan Agner22802f42016-12-23 07:51:53 +010080 */
Simon Glassdfce1792017-11-13 18:55:04 -070081 debug("u_boot_pos = %lx\n", u_boot_pos);
82 if (u_boot_pos == BINMAN_SYM_MISSING) {
83 /*
84 * No binman support or no information. For now, fix it
85 * to the address pointed to by U-Boot.
86 */
Michal Simek83a64562018-10-04 09:29:20 +020087 u_boot_pos = (ulong)spl_get_load_buffer(-sizeof(*header),
88 sizeof(*header));
Simon Glassdfce1792017-11-13 18:55:04 -070089 }
Simon Glassf3543e62022-09-06 20:26:52 -060090 header = (struct legacy_img_hdr *)map_sysmem(u_boot_pos, 0);
Stefan Agner22802f42016-12-23 07:51:53 +010091
Pali Rohár2e0429b2022-01-14 14:31:38 +010092 spl_parse_image_header(spl_image, bootdev, header);
Stefan Agner22802f42016-12-23 07:51:53 +010093 }
94
95 return 0;
96}
Marek Vasut49132612018-04-07 17:03:28 +020097#if CONFIG_IS_ENABLED(RAM_DEVICE)
Stefan Agner22802f42016-12-23 07:51:53 +010098SPL_LOAD_IMAGE_METHOD("RAM", 0, BOOT_DEVICE_RAM, spl_ram_load_image);
99#endif
Andrew F. Davis6536ca42019-01-17 13:43:02 -0600100#if CONFIG_IS_ENABLED(DFU)
Stefan Agner22802f42016-12-23 07:51:53 +0100101SPL_LOAD_IMAGE_METHOD("DFU", 0, BOOT_DEVICE_DFU, spl_ram_load_image);
102#endif