env: Kconfig: cosmetics: update comment for SYS_RELOC_GD_ENV_ADDR
[oweals/u-boot.git] / tools / omapimage.c
index 7198b3330d6d6a62a8d3064643bfe1fe191cec33..c59cdcc79b3d0f4934817fca231bc4e6c6fc7c87 100644 (file)
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2010
  * Linaro LTD, www.linaro.org
@@ -10,8 +11,6 @@
  * (C) Copyright 2008
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include "imagetool.h"
@@ -20,6 +19,8 @@
 #include "gpheader.h"
 #include "omapimage.h"
 
+#define DIV_ROUND_UP(n, d)     (((n) + (d) - 1) / (d))
+
 /* Header size is CH header rounded up to 512 bytes plus GP header */
 #define OMAP_CH_HDR_SIZE 512
 #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE + GPIMAGE_HDR_SIZE)
@@ -143,15 +144,17 @@ static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
        toc++;
        memset(toc, 0xff, sizeof(*toc));
 
-       gph_set_header(gph, sbuf->st_size - OMAP_FILE_HDR_SIZE,
+       gph_set_header(gph, sbuf->st_size - OMAP_CH_HDR_SIZE,
                       params->addr, 0);
 
        if (strncmp(params->imagename, "byteswap", 8) == 0) {
                do_swap32 = 1;
                int swapped = 0;
                uint32_t *data = (uint32_t *)ptr;
+               const off_t size_in_words =
+                       DIV_ROUND_UP(sbuf->st_size, sizeof(uint32_t));
 
-               while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
+               while (swapped < size_in_words) {
                        *data = cpu_to_be32(*data);
                        swapped++;
                        data++;