hw/xtensa/xtfpga: use symbolic constants for bootparam tags

Import bootparam tag names from linux/arch/xtensa/include/asm/bootparam.h
No functional changes.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

2 files changed, 13 insertions, 3 deletions

diff --git a/hw/xtensa/bootparam.h b/hw/xtensa/bootparam.h
index 38ef32bdb6..e6cf3b1492 100644
--- a/hw/xtensa/bootparam.h
+++ b/hw/xtensa/bootparam.h
@@ -1,6 +1,16 @@
 #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;
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 0aa3eeb046..6d070b0d64 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -250,12 +250,12 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
 
             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;