--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/prom.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/include/asm/prom.h	2021-11-10 11:53:54.000000000 +0000
@@ -51,4 +51,28 @@
 extern char *mips_get_machine_name(void);
 extern void mips_set_machine_name(const char *name);
 
+
+/* AVM non-dt work-arounds follow */
+
+extern void prom_printf(const char *fmt, ...);
+extern char *prom_getcmdline(void);
+extern char *prom_getenv(char *name);
+extern void prom_init_cmdline(void);
+extern void prom_meminit(void);
+extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem);
+extern void mips_display_message(const char *str);
+extern void mips_display_word(unsigned int num);
+extern void mips_scroll_message(void);
+extern int get_ethernet_addr(char *ethernet_addr);
+
+/* Memory descriptor management. */
+#define PROM_MAX_PMEMBLOCKS    32
+struct prom_pmemblock {
+	unsigned long base; /* Within KSEG0. */
+	unsigned int size;  /* In bytes. */
+	unsigned int type;  /* free or prom memory */
+};
+
+
+#include <asm/prealloc_memory.h>
 #endif /* __ASM_PROM_H */