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Diffstat (limited to 'tools/rkcommon.c')
-rw-r--r--tools/rkcommon.c90
1 files changed, 79 insertions, 11 deletions
diff --git a/tools/rkcommon.c b/tools/rkcommon.c
index 6595e02c1c..6cdb749c4c 100644
--- a/tools/rkcommon.c
+++ b/tools/rkcommon.c
@@ -41,25 +41,37 @@ struct header0_info {
};
/**
+ * struct header1_info
+ */
+struct header1_info {
+ uint32_t magic;
+};
+
+/**
* 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)
+ * @spl_boot0: A new-style (ARM_SOC_BOOT0_HOOK) image that should
+ * have the boot magic (e.g. 'RK33') written to its first
+ * word.
*/
+
struct spl_info {
const char *imagename;
const char *spl_hdr;
const uint32_t spl_size;
const bool spl_rc4;
+ const bool spl_boot0;
};
static struct spl_info spl_infos[] = {
- { "rk3036", "RK30", 0x1000, false },
- { "rk3188", "RK31", 0x8000 - 0x800, true },
- { "rk3288", "RK32", 0x8000, false },
- { "rk3399", "RK33", 0x20000, false },
+ { "rk3036", "RK30", 0x1000, false, false },
+ { "rk3188", "RK31", 0x8000 - 0x800, true, false },
+ { "rk3288", "RK32", 0x8000, false, false },
+ { "rk3399", "RK33", 0x20000, false, true },
};
static unsigned char rc4_key[16] = {
@@ -106,6 +118,7 @@ const char *rkcommon_get_spl_hdr(struct image_tool_params *params)
return info->spl_hdr;
}
+
int rkcommon_get_spl_size(struct image_tool_params *params)
{
struct spl_info *info = rkcommon_get_spl_info(params->imagename);
@@ -126,16 +139,22 @@ bool rkcommon_need_rc4_spl(struct image_tool_params *params)
return info->spl_rc4;
}
-int rkcommon_set_header(void *buf, uint file_size,
- struct image_tool_params *params)
+bool rkcommon_spl_is_boot0(struct image_tool_params *params)
{
- struct header0_info *hdr;
+ struct spl_info *info = rkcommon_get_spl_info(params->imagename);
- if (file_size > rkcommon_get_spl_size(params))
- return -ENOSPC;
+ /*
+ * info would not be NULL, because of we checked params before.
+ */
+ return info->spl_boot0;
+}
+
+static void rkcommon_set_header0(void *buf, uint file_size,
+ struct image_tool_params *params)
+{
+ struct header0_info *hdr = buf;
- memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
- hdr = (struct header0_info *)buf;
+ memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
hdr->signature = RK_SIGNATURE;
hdr->disable_rc4 = !rkcommon_need_rc4_spl(params);
hdr->init_offset = RK_INIT_OFFSET;
@@ -145,6 +164,24 @@ int rkcommon_set_header(void *buf, uint file_size,
hdr->init_boot_size = hdr->init_size + RK_MAX_BOOT_SIZE / RK_BLK_SIZE;
rc4_encode(buf, RK_BLK_SIZE, rc4_key);
+}
+
+int rkcommon_set_header(void *buf, uint file_size,
+ struct image_tool_params *params)
+{
+ struct header1_info *hdr = buf + RK_SPL_HDR_START;
+
+ if (file_size > rkcommon_get_spl_size(params))
+ return -ENOSPC;
+
+ rkcommon_set_header0(buf, file_size, params);
+
+ /* Set up the SPL name and add the AArch64 'nop' padding, if needed */
+ memcpy(&hdr->magic, rkcommon_get_spl_hdr(params), RK_SPL_HDR_SIZE);
+
+ if (rkcommon_need_rc4_spl(params))
+ rkcommon_rc4_encode_spl(buf, RK_SPL_HDR_START,
+ params->file_size - RK_SPL_HDR_START);
return 0;
}
@@ -161,3 +198,34 @@ void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size)
remaining -= step;
}
}
+
+void rkcommon_vrec_header(struct image_tool_params *params,
+ struct image_type_params *tparams)
+{
+ /*
+ * The SPL image looks as follows:
+ *
+ * 0x0 header0 (see rkcommon.c)
+ * 0x800 spl_name ('RK30', ..., 'RK33')
+ * 0x804 first instruction to be executed
+ * (image start for AArch32, 'nop' for AArch64))
+ * 0x808 second instruction to be executed
+ * (image start for AArch64)
+ *
+ * For AArch64 (ARMv8) payloads, we receive an input file that
+ * needs to start on an 8-byte boundary (natural alignment), so
+ * we need to put a NOP at 0x804.
+ *
+ * Depending on this, the header is either 0x804 or 0x808 bytes
+ * in length.
+ */
+ if (rkcommon_spl_is_boot0(params))
+ tparams->header_size = RK_SPL_HDR_START;
+ else
+ tparams->header_size = RK_SPL_HDR_START + 4;
+
+ /* Allocate, clear and install the header */
+ tparams->hdr = malloc(tparams->header_size);
+ memset(tparams->hdr, 0, tparams->header_size);
+ tparams->header_size = tparams->header_size;
+}