rockchip: arm64: rk3399: add ddr controller driver

[oweals/u-boot.git] / tools / rkcommon.c

diff --git a/tools/rkcommon.c b/tools/rkcommon.c
index 249c86262df86d63d9b5a9cfa7cf7006af031516..6595e02c1c5b87e9e4c6b659bcd8c90365e5193a 100644 (file)
--- a/tools/rkcommon.c
+++ b/tools/rkcommon.c
@@ -40,22 +40,104 @@ struct header0_info {
        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 > CONFIG_ROCKCHIP_MAX_SPL_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;
@@ -66,3 +148,16 @@ 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;
+       }
+}