diff options
Diffstat (limited to 'tools/rkcommon.c')
| -rw-r--r-- | tools/rkcommon.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/tools/rkcommon.c b/tools/rkcommon.c index 0a072aa..ed9b241 100644 --- a/tools/rkcommon.c +++ b/tools/rkcommon.c @@ -46,17 +46,19 @@ struct header0_info { * @imagename: Image name(passed by "mkimage -n") * @spl_hdr: Boot ROM requires a 4-bytes spl header * @spl_size: Spl size(include extra 4-bytes spl header) + * @spl_rc4: RC4 encode the SPL binary (same key as header) */ struct spl_info { const char *imagename; const char *spl_hdr; const uint32_t spl_size; + const bool spl_rc4; }; static struct spl_info spl_infos[] = { - { "rk3036", "RK30", 0x1000 }, - { "rk3288", "RK32", 0x8000 }, - { "rk3399", "RK33", 0x20000 }, + { "rk3036", "RK30", 0x1000, false }, + { "rk3288", "RK32", 0x8000, false }, + { "rk3399", "RK33", 0x20000, false }, }; static unsigned char rc4_key[16] = { @@ -113,6 +115,16 @@ int rkcommon_get_spl_size(struct image_tool_params *params) return info->spl_size; } +bool rkcommon_need_rc4_spl(struct image_tool_params *params) +{ + struct spl_info *info = rkcommon_get_spl_info(params->imagename); + + /* + * info would not be NULL, because of we checked params before. + */ + return info->spl_rc4; +} + int rkcommon_set_header(void *buf, uint file_size, struct image_tool_params *params) { @@ -124,7 +136,7 @@ int rkcommon_set_header(void *buf, uint file_size, memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE); hdr = (struct header0_info *)buf; hdr->signature = RK_SIGNATURE; - hdr->disable_rc4 = 1; + hdr->disable_rc4 = !rkcommon_need_rc4_spl(params); hdr->init_offset = RK_INIT_OFFSET; hdr->init_size = (file_size + RK_BLK_SIZE - 1) / RK_BLK_SIZE; @@ -135,3 +147,16 @@ int rkcommon_set_header(void *buf, uint file_size, return 0; } + +void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size) +{ + unsigned int remaining = size; + + while (remaining > 0) { + int step = (remaining > RK_BLK_SIZE) ? RK_BLK_SIZE : remaining; + + rc4_encode(buf + offset, step, rc4_key); + offset += RK_BLK_SIZE; + remaining -= step; + } +} |