bootinfo: Add BROM header decoding

bootinfo.c

@@ -47,6 +47,16 @@ typedef struct boot_file_head
 	u8   platform[8];        // platform information
 } boot_file_head_t;
 
+typedef struct brom_file_head
+{
+	u32  jump_instruction;   // one intruction jumping to real code
+	u8   magic[8];           // ="eGON.BRM",  not C-style string.
+	u32  length;             // generated by PC
+	u8   Boot_vsn[4];        // Boot version
+	u8   eGON_vsn[4];        // eGON version
+	u8   platform[8];        // platform information
+} brom_file_head_t;
+
 typedef struct _boot_dram_para_t {
     __u32 dram_baseaddr;
     __u32 dram_clk;
@@ -137,6 +147,7 @@ typedef struct _boot_sdcard_info_t {
     __s32 line_count[4];
 } boot_sdcard_info_t;
 
+#define BROM_MAGIC                     "eGON.BRM"
 #define BOOT0_MAGIC                     "eGON.BT0"
 #define BOOT1_MAGIC                     "eGON.BT1"
 
@@ -145,6 +156,15 @@ void fail(char *msg) {
 	exit(1);
 }
 
+void print_brom_file_head(brom_file_head_t *hdr)
+{
+	printf("Magic     : %.8s\n", hdr->magic);
+	printf("Length    : %u\n", hdr->length);
+	printf("BOOT ver  : %.4s\n", hdr->Boot_vsn);
+	printf("eGON ver  : %.4s\n", hdr->eGON_vsn);
+	printf("Chip?     : %.8s\n", hdr->platform);
+}
+
 void print_boot_file_head(boot_file_head_t *hdr)
 {
 	printf("Magic     : %.8s\n", hdr->magic);
@@ -283,6 +303,7 @@ int main(int argc, char * argv[])
 		boot_file_head_t boot;
 		boot0_file_head_t boot0;
 		boot1_file_head_t boot1;
+		brom_file_head_t brom;
 	} hdr;
 	int len;
 
@@ -293,6 +314,8 @@ int main(int argc, char * argv[])
 		print_boot0_file_head(&hdr.boot0);
 	} else if (strncmp((char *)hdr.boot.magic, BOOT1_MAGIC, strlen(BOOT1_MAGIC)) == 0) {
 		print_boot1_file_head(&hdr.boot1);
+	} else if (strncmp((char *)hdr.boot.magic, BROM_MAGIC, strlen(BROM_MAGIC)) == 0) {
+		print_brom_file_head(&hdr.brom);
 	} else {
 		fail("Invalid magic\n");
 	}