diff options
Diffstat (limited to 'common/uimage.c')
| -rw-r--r-- | common/uimage.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/common/uimage.c b/common/uimage.c index 344bd61c06..3f5a3d5cd0 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", |