1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2014 Freescale Semiconductor, Inc.
4 * Author: Ruchika Gupta <ruchika.gupta@freescale.com>
10 #include <asm/types.h>
16 #include <u-boot/rsa-mod-exp.h>
18 int fsl_mod_exp(struct udevice *dev, const uint8_t *sig, uint32_t sig_len,
19 struct key_prop *prop, uint8_t *out)
22 struct pk_in_params pkin;
23 uint32_t desc[MAX_CAAM_DESCSIZE];
27 keylen = prop->num_bits / 8;
31 pkin.n = prop->modulus;
33 pkin.e = prop->public_exponent;
34 pkin.e_siz = prop->exp_len;
36 inline_cnstr_jobdesc_pkha_rsaexp(desc, &pkin, out, sig_len);
38 ret = run_descriptor_jr(desc);
40 debug("%s: RSA failed to verify: %d\n", __func__, ret);
47 static const struct mod_exp_ops fsl_mod_exp_ops = {
48 .mod_exp = fsl_mod_exp,
51 U_BOOT_DRIVER(fsl_rsa_mod_exp) = {
52 .name = "fsl_rsa_mod_exp",
54 .ops = &fsl_mod_exp_ops,
55 .flags = DM_FLAG_PRE_RELOC,
58 U_BOOT_DEVICE(fsl_rsa) = {
59 .name = "fsl_rsa_mod_exp",