diff --git a/include/asm-sparc64/floppy.h b/include/asm-sparc64/floppy.h
index 331013a0053e..4aa0925e1b1b 100644
--- a/include/asm-sparc64/floppy.h
+++ b/include/asm-sparc64/floppy.h
@@ -549,7 +549,7 @@ static int __init ebus_fdthree_p(struct linux_ebus_device *edev)
 	if (!strcmp(edev->prom_node->name, "fdthree"))
 		return 1;
 	if (!strcmp(edev->prom_node->name, "floppy")) {
-		char *compat;
+		const char *compat;
 
 		compat = of_get_property(edev->prom_node,
 					 "compatible", NULL);
@@ -661,7 +661,7 @@ static unsigned long __init sun_floppy_init(void)
 		struct linux_ebus_device *edev = NULL;
 		unsigned long config = 0;
 		void __iomem *auxio_reg;
-		char *state_prop;
+		const char *state_prop;
 
 		for_each_ebus(ebus) {
 			for_each_ebusdev(edev, ebus) {
diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h
index 284dfd01a33d..6340a5253a34 100644
--- a/include/asm-sparc64/parport.h
+++ b/include/asm-sparc64/parport.h
@@ -103,7 +103,7 @@ static int ebus_ecpp_p(struct linux_ebus_device *edev)
 	if (!strcmp(edev->prom_node->name, "ecpp"))
 		return 1;
 	if (!strcmp(edev->prom_node->name, "parallel")) {
-		char *compat;
+		const char *compat;
 
 		compat = of_get_property(edev->prom_node,
 					 "compatible", NULL);