blob: 51d30830c47538999b8ba71df1773695f191f1be [file] [log] [blame]
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <platform_oid.h>
#include <stdint.h>
#include <string.h>
#include "fvp_def.h"
/*
* Store a new non-volatile counter value. On some FVP versions, the
* non-volatile counters are RO. On these versions we expect the values in the
* certificates to always match the RO values so that this function is never
* called.
*
* Return: 0 = success, Otherwise = error
*/
int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
{
const char *oid;
uint32_t *nv_ctr_addr;
assert(cookie != NULL);
oid = (const char *)cookie;
if (strcmp(oid, TRUSTED_FW_NVCOUNTER_OID) == 0) {
nv_ctr_addr = (uint32_t *)TFW_NVCTR_BASE;
} else if (strcmp(oid, NON_TRUSTED_FW_NVCOUNTER_OID) == 0) {
nv_ctr_addr = (uint32_t *)NTFW_CTR_BASE;
} else {
return 1;
}
*(unsigned int *)nv_ctr_addr = nv_ctr;
/* Verify that the current value is the one we just wrote. */
if (nv_ctr != (unsigned int)(*nv_ctr_addr))
return 1;
return 0;
}