[U-Boot] [PATCH] board_f: Only reserve memory for U-Boot if we're going to relocate

[Alexey Brodkin]

In case of no relocation we'll just waste some paceat the very end
of usable memory area. If U-Boot is huge and we cannot use a lot of memory this
loss will be pretty inconvenient.

Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Bin Meng <bmeng.cn at gmail.com>
Cc: Heiko Schocher <hs at denx.de>
Cc: York Sun <york.sun at nxp.com>
Cc: Stefan Roese <sr at denx.de>
---
 common/board_f.c | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/common/board_f.c b/common/board_f.c
index 92743089087e..d1662199a570 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -396,19 +396,21 @@ static int reserve_trace(void)
 
 static int reserve_uboot(void)
 {
-	/*
-	 * reserve memory for U-Boot code, data & bss
-	 * round down to next 4 kB limit
-	 */
-	gd->relocaddr -= gd->mon_len;
-	gd->relocaddr &= ~(4096 - 1);
-#if defined(CONFIG_E500) || defined(CONFIG_MIPS)
-	/* round down to next 64 kB limit so that IVPR stays aligned */
-	gd->relocaddr &= ~(65536 - 1);
-#endif
-
-	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
-	      gd->relocaddr);
+	if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
+		/*
+		 * reserve memory for U-Boot code, data & bss
+		 * round down to next 4 kB limit
+		 */
+		gd->relocaddr -= gd->mon_len;
+		gd->relocaddr &= ~(4096 - 1);
+	#if defined(CONFIG_E500) || defined(CONFIG_MIPS)
+		/* round down to next 64 kB limit so that IVPR stays aligned */
+		gd->relocaddr &= ~(65536 - 1);
+	#endif
+
+		debug("Reserving %ldk for U-Boot at: %08lx\n",
+		      gd->mon_len >> 10, gd->relocaddr);
+	}
 
 	gd->start_addr_sp = gd->relocaddr;
 
-- 
2.14.3