#ifndef HW_XTENSA_BOOTPARAM
#define HW_XTENSA_BOOTPARAM
+#define BP_TAG_COMMAND_LINE 0x1001 /* command line (0-terminated string)*/
+#define BP_TAG_INITRD 0x1002 /* ramdisk addr and size (bp_meminfo) */
+#define BP_TAG_MEMORY 0x1003 /* memory addr and size (bp_meminfo) */
+#define BP_TAG_SERIAL_BAUDRATE 0x1004 /* baud rate of current console. */
+#define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */
+#define BP_TAG_FDT 0x1006 /* flat device tree addr */
+
+#define BP_TAG_FIRST 0x7B0B /* first tag with a version number */
+#define BP_TAG_LAST 0x7E0B /* last tag */
+
typedef struct BpTag {
uint16_t tag;
uint16_t size;
env->regs[2] = tagptr;
- tagptr = put_tag(tagptr, 0x7b0b, 0, NULL);
+ tagptr = put_tag(tagptr, BP_TAG_FIRST, 0, NULL);
if (cmdline_size > 1) {
- tagptr = put_tag(tagptr, 0x1001,
+ tagptr = put_tag(tagptr, BP_TAG_COMMAND_LINE,
cmdline_size, kernel_cmdline);
}
- tagptr = put_tag(tagptr, 0x7e0b, 0, NULL);
+ tagptr = put_tag(tagptr, BP_TAG_LAST, 0, NULL);
}
uint64_t elf_entry;
uint64_t elf_lowaddr;