diff options
Diffstat (limited to 'boot/vbe_common.h')
| -rw-r--r-- | boot/vbe_common.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/boot/vbe_common.h b/boot/vbe_common.h index 37a81330325..bfa339008e1 100644 --- a/boot/vbe_common.h +++ b/boot/vbe_common.h @@ -94,4 +94,32 @@ int vbe_read_version(struct udevice *blk, ulong offset, char *version, */ int vbe_read_nvdata(struct udevice *blk, ulong offset, ulong size, u8 *buf); +/** + * vbe_read_fit() - Read an image from a FIT + * + * This handles most of the VBE logic for reading from a FIT. It reads the FIT + * metadata, decides which image to load and loads it to a suitable address, + * ready for jumping to the next phase of VBE. + * + * This supports transition from VPL to SPL as well as SPL to U-Boot proper. For + * now, TPL->VPL is not supported. + * + * Both embedded and external data are supported for the FIT + * + * @blk: Block device containing FIT + * @area_offset: Byte offset of the VBE area in @blk containing the FIT + * @area_size: Size of the VBE area + * @load_addrp: If non-null, returns the address where the image was loaded + * @lenp: If non-null, returns the size of the image loaded, in bytes + * @namep: If non-null, returns the name of the FIT-image node that was loaded + * (allocated by this function) + * Return: 0 if OK, -EINVAL if the area does not contain an FDT (the underlying + * format for FIT), -E2BIG if the FIT extends past @area_size, -ENOMEM if there + * was not space to allocate the image-node name, other error if a read error + * occurred (see blk_read()), or something went wrong with the actually + * FIT-parsing (see fit_image_load()). + */ +int vbe_read_fit(struct udevice *blk, ulong area_offset, ulong area_size, + ulong *load_addrp, ulong *lenp, char **namep); + #endif /* __VBE_ABREC_H */ |