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u-boot/tools/fdt_host.h
Simon Glass 70e6bcc43f tools: Improve comments in signing functions
Add some more comments to explain what is going on in the signing
functions. Fix two repeated typos.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-26 08:50:43 -07:00

41 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2008 Semihalf
*/
#ifndef __FDT_HOST_H__
#define __FDT_HOST_H__
/* Make sure to include u-boot version of libfdt include files */
#include "../include/linux/libfdt.h"
#include "../include/fdt_support.h"
/**
* fdt_remove_unused_strings() - Remove any unused strings from an FDT
*
* This creates a new device tree in @new with unused strings removed. The
* called can then use fdt_pack() to minimise the space consumed.
*
* @old: Old device tree blog
* @new: Place to put new device tree blob, which must be as large as
* @old
* @return
* 0, on success
* -FDT_ERR_BADOFFSET, corrupt device tree
* -FDT_ERR_NOSPACE, out of space, which should not happen unless there
* is something very wrong with the device tree input
*/
int fdt_remove_unused_strings(const void *old, void *new);
/**
* fit_check_sign() - Check a signature in a FIT
*
* @fit: FIT to check
* @key: Key FDT blob to check against
* @fit_uname_config: Name of configuration to check (NULL for default)
* @return 0 if OK, -ve if signature failed
*/
int fit_check_sign(const void *fit, const void *key,
const char *fit_uname_config);
#endif /* __FDT_HOST_H__ */