]>
git.ipfire.org Git - people/ms/u-boot.git/blob - tools/rkcommon.c
2 * (C) Copyright 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
7 * Helper functions for Rockchip images
10 #include "imagetool.h"
17 RK_SIGNATURE
= 0x0ff0aa55,
21 * struct header0_info - header block for boot ROM
23 * This is stored at SD card block 64 (where each block is 512 bytes, or at
24 * the start of SPI flash. It is encoded with RC4.
26 * @signature: Signature (must be RKSD_SIGNATURE)
27 * @disable_rc4: 0 to use rc4 for boot image, 1 to use plain binary
28 * @init_offset: Offset in blocks of the SPL code from this header
29 * block. E.g. 4 means 2KB after the start of this header.
30 * Other fields are not used by U-Boot
37 uint8_t reserved1
[492];
39 uint16_t init_boot_size
;
44 * struct spl_info - spl info for each chip
46 * @imagename: Image name(passed by "mkimage -n")
47 * @spl_hdr: Boot ROM requires a 4-bytes spl header
48 * @spl_size: Spl size(include extra 4-bytes spl header)
51 const char *imagename
;
53 const uint32_t spl_size
;
56 static struct spl_info spl_infos
[] = {
57 { "rk3036", "RK30", 0x1000 },
58 { "rk3288", "RK32", 0x8000 },
59 { "rk3399", "RK33", 0x20000 },
62 static unsigned char rc4_key
[16] = {
63 124, 78, 3, 4, 85, 5, 9, 7,
64 45, 44, 123, 56, 23, 13, 23, 17
67 static struct spl_info
*rkcommon_get_spl_info(char *imagename
)
71 for (i
= 0; i
< ARRAY_SIZE(spl_infos
); i
++)
72 if (!strncmp(imagename
, spl_infos
[i
].imagename
, 6))
78 int rkcommon_check_params(struct image_tool_params
*params
)
82 if (rkcommon_get_spl_info(params
->imagename
) != NULL
)
85 fprintf(stderr
, "ERROR: imagename (%s) is not supported!\n",
86 strlen(params
->imagename
) > 0 ? params
->imagename
: "NULL");
88 fprintf(stderr
, "Available imagename:");
89 for (i
= 0; i
< ARRAY_SIZE(spl_infos
); i
++)
90 fprintf(stderr
, "\t%s", spl_infos
[i
].imagename
);
91 fprintf(stderr
, "\n");
96 const char *rkcommon_get_spl_hdr(struct image_tool_params
*params
)
98 struct spl_info
*info
= rkcommon_get_spl_info(params
->imagename
);
101 * info would not be NULL, because of we checked params before.
103 return info
->spl_hdr
;
106 int rkcommon_get_spl_size(struct image_tool_params
*params
)
108 struct spl_info
*info
= rkcommon_get_spl_info(params
->imagename
);
111 * info would not be NULL, because of we checked params before.
113 return info
->spl_size
;
116 int rkcommon_set_header(void *buf
, uint file_size
,
117 struct image_tool_params
*params
)
119 struct header0_info
*hdr
;
121 if (file_size
> rkcommon_get_spl_size(params
))
124 memset(buf
, '\0', RK_INIT_OFFSET
* RK_BLK_SIZE
);
125 hdr
= (struct header0_info
*)buf
;
126 hdr
->signature
= RK_SIGNATURE
;
127 hdr
->disable_rc4
= 1;
128 hdr
->init_offset
= RK_INIT_OFFSET
;
130 hdr
->init_size
= (file_size
+ RK_BLK_SIZE
- 1) / RK_BLK_SIZE
;
131 hdr
->init_size
= (hdr
->init_size
+ 3) & ~3;
132 hdr
->init_boot_size
= hdr
->init_size
+ RK_MAX_BOOT_SIZE
/ RK_BLK_SIZE
;
134 rc4_encode(buf
, RK_BLK_SIZE
, rc4_key
);