Index: head/sys/boot/mips/beri/loader/beri_disk_cfi.c
===================================================================
--- head/sys/boot/mips/beri/loader/beri_disk_cfi.c	(revision 283896)
+++ head/sys/boot/mips/beri/loader/beri_disk_cfi.c	(working copy)
@@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$");
 static int	beri_cfi_disk_init(void);
 static int	beri_cfi_disk_open(struct open_file *, ...);
 static int	beri_cfi_disk_close(struct open_file *);
+static int	beri_cfi_disk_ioctl(struct open_file *, u_long, void *);
 static void	beri_cfi_disk_cleanup(void);
 static int	beri_cfi_disk_strategy(void *, int, daddr_t, size_t, char *,
 		    size_t *);
@@ -56,7 +57,7 @@ struct devsw beri_cfi_disk = {
 	.dv_strategy = beri_cfi_disk_strategy,
 	.dv_open = beri_cfi_disk_open,
 	.dv_close = beri_cfi_disk_close,
-	.dv_ioctl = noioctl,
+	.dv_ioctl = beri_cfi_disk_ioctl,
 	.dv_print = beri_cfi_disk_print,
 	.dv_cleanup = beri_cfi_disk_cleanup,
 };
@@ -133,6 +134,25 @@ beri_cfi_disk_print(int verbose)
 
 }
 
+static int
+beri_cfi_disk_ioctl(struct open_file *f, u_long cmd, void *data)
+{
+	struct disk_devdesc *dev;
+
+	dev = (struct disk_devdesc *)f->f_devdata;
+	switch (cmd) {
+	case DIOCGSECTORSIZE:
+		*(u_int *)data = (u_int)cfi_get_sectorsize();
+		break;
+	case DIOCGMEDIASIZE:
+		*(off_t *)data = (off_t)cfi_get_mediasize();
+		break;
+	default:
+		return (ENOTTY);
+	}
+	return (0);
+}
+
 static void
 beri_cfi_disk_cleanup(void)
 {
Index: head/sys/boot/mips/beri/loader/beri_disk_sdcard.c
===================================================================
--- head/sys/boot/mips/beri/loader/beri_disk_sdcard.c	(revision 283896)
+++ head/sys/boot/mips/beri/loader/beri_disk_sdcard.c	(working copy)
@@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$");
 static int	beri_sdcard_disk_init(void);
 static int	beri_sdcard_disk_open(struct open_file *, ...);
 static int	beri_sdcard_disk_close(struct open_file *);
+static int	beri_sdcard_disk_ioctl(struct open_file *, u_long, void *);
 static void	beri_sdcard_disk_cleanup(void);
 static int	beri_sdcard_disk_strategy(void *, int, daddr_t, size_t, char *,
 		    size_t *);
@@ -56,7 +57,7 @@ struct devsw beri_sdcard_disk = {
 	.dv_strategy = beri_sdcard_disk_strategy,
 	.dv_open = beri_sdcard_disk_open,
 	.dv_close = beri_sdcard_disk_close,
-	.dv_ioctl = noioctl,
+	.dv_ioctl = beri_sdcard_disk_ioctl,
 	.dv_print = beri_sdcard_disk_print,
  	.dv_cleanup = beri_sdcard_disk_cleanup,
 };
@@ -138,6 +139,25 @@ beri_sdcard_disk_print(int verbose)
 	}
 }
 
+static int
+beri_sdcard_disk_ioctl(struct open_file *f, u_long cmd, void *data)
+{
+	struct disk_devdesc *dev;
+
+	dev = (struct disk_devdesc *)f->f_devdata;
+	switch (cmd) {
+	case DIOCGSECTORSIZE:
+		*(u_int *)data = (u_int)altera_sdcard_get_sectorsize();
+		break;
+	case DIOCGMEDIASIZE:
+		*(off_t *)data = (off_t)altera_sdcard_get_mediasize();
+		break;
+	default:
+		return (ENOTTY);
+	}
+	return (0);
+}
+
 static void
 beri_sdcard_disk_cleanup(void)
 {