[PATCH 3/3] boot: fdt: Move usable variable below updated comment

[Marek Vasut]

Move the variable below comment which explains what the variable means.
Update the comment. No functional change.

Suggested-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Heinrich Schuchardt <xypron.glpk at gmx.de>
Cc: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Tom Rini <trini at konsulko.com>
---
 boot/image-fdt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/boot/image-fdt.c b/boot/image-fdt.c
index c37442c9130..16cd15e7e44 100644
--- a/boot/image-fdt.c
+++ b/boot/image-fdt.c
@@ -218,12 +218,12 @@ int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
 			if (start + size < low)
 				continue;
 
-			usable = min(start + size, low + mapsize);
-
 			/*
 			 * At least part of this DRAM bank is usable, try
-			 * using it for LMB allocation.
+			 * using the the DRAM bank up to $usable address
+			 * limit for LMB allocation.
 			 */
+			usable = min(start + size, low + mapsize);
 			addr = lmb_alloc_base(lmb, of_len, 0x1000, usable);
 			of_start = map_sysmem(addr, of_len);
 			/* Allocation succeeded, use this block. */
-- 
2.43.0