1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2014 Freescale Semiconductor, Inc.
4 * Author: Ruchika Gupta <ruchika.gupta@freescale.com>
5 */
6
7#include <config.h>
8#include <common.h>
9#include <dm.h>
10#include <log.h>
11#include <u-boot/rsa-mod-exp.h>
12
13static int mod_exp_sw(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
14		      struct key_prop *prop, uint8_t *out)
15{
16	int ret = 0;
17
18	ret = rsa_mod_exp_sw(sig, sig_len, prop, out);
19	if (ret) {
20		debug("%s: RSA failed to verify: %d\n", __func__, ret);
21		return ret;
22	}
23
24	return 0;
25}
26
27static const struct mod_exp_ops mod_exp_ops_sw = {
28	.mod_exp	= mod_exp_sw,
29};
30
31U_BOOT_DRIVER(mod_exp_sw) = {
32	.name	= "mod_exp_sw",
33	.id	= UCLASS_MOD_EXP,
34	.ops	= &mod_exp_ops_sw,
35	.flags	= DM_FLAG_PRE_RELOC,
36};
37
38U_BOOT_DRVINFO(mod_exp_sw) = {
39	.name = "mod_exp_sw",
40};
41