uint8_t reserved2[2];
};
+/**
+ * struct spl_info - spl info for each chip
+ *
+ * @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, false },
+ { "rk3188", "RK31", 0x8000 - 0x800, true },
+ { "rk3288", "RK32", 0x8000, false },
+ { "rk3399", "RK33", 0x20000, false },
+};
+
static unsigned char rc4_key[16] = {
124, 78, 3, 4, 85, 5, 9, 7,
45, 44, 123, 56, 23, 13, 23, 17
};
-int rkcommon_set_header(void *buf, uint file_size)
+static struct spl_info *rkcommon_get_spl_info(char *imagename)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
+ if (!strncmp(imagename, spl_infos[i].imagename, 6))
+ return spl_infos + i;
+
+ return NULL;
+}
+
+int rkcommon_check_params(struct image_tool_params *params)
+{
+ int i;
+
+ if (rkcommon_get_spl_info(params->imagename) != NULL)
+ return 0;
+
+ fprintf(stderr, "ERROR: imagename (%s) is not supported!\n",
+ strlen(params->imagename) > 0 ? params->imagename : "NULL");
+
+ fprintf(stderr, "Available imagename:");
+ for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
+ fprintf(stderr, "\t%s", spl_infos[i].imagename);
+ fprintf(stderr, "\n");
+
+ return -1;
+}
+
+const char *rkcommon_get_spl_hdr(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_hdr;
+}
+
+int rkcommon_get_spl_size(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_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)
{
struct header0_info *hdr;
- if (file_size > RK_MAX_CODE1_SIZE)
+ if (file_size > rkcommon_get_spl_size(params))
return -ENOSPC;
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;
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;
+ }
+}