Signed-off-by: Vicente <[email protected]>
---
common/uimage.c | 27 +++++++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/common/uimage.c b/common/uimage.c
index c72db41..8f8736f 100644
--- a/common/uimage.c
+++ b/common/uimage.c
@@ -28,6 +28,8 @@
#include <rtc.h>
#include <filetype.h>
#include <memory.h>
+#include <linux/stat.h>
+#include <sizes.h>
#ifdef CONFIG_UIMAGE_MULTI
static inline int uimage_is_multi_image(struct uimage_handle *handle)
@@ -380,15 +382,36 @@ struct resource *file_to_sdram(const char *filename,
unsigned long adr)
struct resource *res;
size_t size = BUFSIZ;
size_t ofs = 0;
+ size_t now;
int fd;
+ struct stat s;
fd = open(filename, O_RDONLY);
if (fd < 0)
return NULL;
- while (1) {
- size_t now;
+ /* TODO: use fstat(fd, &s) when implemented and avoid reopening file */
+ if (stat(filename, &s) == 0 && s.st_size <= SZ_1G) {
+ /*
+ * As the file size is known we can read it at once and improve
+ * transfer speed.
+ */
+ size = s.st_size;
+ res = request_sdram_region("image", adr, size);
+ if (!res) {
+ printf("unable to request SDRAM 0x%08lx-0x%08lx\n",
+ adr, adr + size - 1);
+ goto out;
+ }
+ now = read_full(fd, (void *)(res->start), size);
+ if (now < size) {
+ release_sdram_region(res);
+ res = NULL;
+ }
+ goto out;
+ }
+ while (1) {
res = request_sdram_region("image", adr, size);
if (!res) {
printf("unable to request SDRAM 0x%08lx-0x%08lx\n",
--
1.7.12.2
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