diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 33d8c9e3223d37ac90e0b756f22c85b07d38f833..005179c2af21ffc892bea142f97eeac0f3a95fd4 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -212,6 +212,21 @@ char * __init prom_getcmdline(void)
 	return &(arcs_cmdline[0]);
 }
 
+const char *__init prom_getenv(const char *name)
+{
+	const s32 *str = (const s32 *)fw_arg2;
+
+	if (!str)
+		return NULL;
+	/* YAMON style ("name", "value" pairs) */
+	while (str[0] && str[1]) {
+		if (!strcmp((const char *)(unsigned long)str[0], name))
+			return (const char *)(unsigned long)str[1];
+		str += 2;
+	}
+	return NULL;
+}
+
 static void __noreturn txx9_machine_halt(void)
 {
 	local_irq_disable();
diff --git a/include/asm-mips/txx9/generic.h b/include/asm-mips/txx9/generic.h
index c9eed7ea148c79b34052b235b2712ae0c006469a..0a225bf73496a469d865c209d358b05c97a57057 100644
--- a/include/asm-mips/txx9/generic.h
+++ b/include/asm-mips/txx9/generic.h
@@ -43,6 +43,7 @@ struct txx9_board_vec {
 extern struct txx9_board_vec *txx9_board_vec;
 extern int (*txx9_irq_dispatch)(int pending);
 char *prom_getcmdline(void);
+const char *prom_getenv(const char *name);
 void txx9_wdt_init(unsigned long base);
 void txx9_spi_init(int busid, unsigned long base, int irq);
 void txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr);