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imx-image: pad generated image to 4k 

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2015-04-01 18:14:12 +02:00 committed by Sascha Hauer
parent 4a50ffc746
commit 7cb4778e7f
1 changed files with 14 additions and 1 deletions
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15
scripts/imx/imx-image.c
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@ -653,6 +653,7 @@ int main(int argc, char *argv[])
struct stat s;
int infd, outfd;
int dcd_only = 0;
int now = 0;
while ((opt = getopt(argc, argv, "c:hf:o:bd")) != -1) {
switch (opt) {
@ -785,7 +786,7 @@ int main(int argc, char *argv[])
}
while (image_size) {
int now = image_size < 4096 ? image_size : 4096;
now = image_size < 4096 ? image_size : 4096;
ret = xread(infd, buf, now);
if (ret) {
@ -802,6 +803,18 @@ int main(int argc, char *argv[])
image_size -= now;
}
/* pad until next 4k boundary */
now = 4096 - now;
if (now) {
memset(buf, 0x5a, now);
ret = xwrite(outfd, buf, now);
if (ret) {
perror("write");
exit(1);
}
}
ret = close(outfd);
if (ret) {
perror("close");