GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/plat/nxp/common/tbbr/x509_tbbr.c

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2018-2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include <lib/cassert.h>
+#include <sfp.h>
+#include <tools_share/tbbr_oid.h>
+
+#include <plat/common/platform.h>
+#include "plat_common.h"
+
+extern char nxp_rotpk_hash[], nxp_rotpk_hash_end[];
+
+int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
+			unsigned int *flags)
+{
+	*key_ptr = nxp_rotpk_hash;
+	*key_len = nxp_rotpk_hash_end - nxp_rotpk_hash;
+	*flags = ROTPK_IS_HASH;
+
+	return 0;
+}
+
+int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr)
+{
+	const char *oid;
+	uint32_t uid_num;
+	uint32_t val = 0U;
+
+	assert(cookie != NULL);
+	assert(nv_ctr != NULL);
+
+	oid = (const char *)cookie;
+	if (strcmp(oid, TRUSTED_FW_NVCOUNTER_OID) == 0) {
+		uid_num = 3U;
+	} else if (strcmp(oid, NON_TRUSTED_FW_NVCOUNTER_OID) == 0) {
+		uid_num = 4U;
+	} else {
+		return 1;
+	}
+
+	val = sfp_read_oem_uid(uid_num);
+
+	INFO("SFP Value read is %x from UID %d\n", val, uid_num);
+	if (val == 0U) {
+		*nv_ctr = 0U;
+	} else {
+		*nv_ctr = (32U - __builtin_clz(val));
+	}
+
+	INFO("NV Counter value for UID %d is %d\n", uid_num, *nv_ctr);
+	return 0;
+
+}
+
+int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
+{
+	const char *oid;
+	uint32_t uid_num, sfp_val;
+
+	assert(cookie != NULL);
+
+	/* Counter values upto 32 are supported */
+	if (nv_ctr > 32U) {
+		return 1;
+	}
+
+	oid = (const char *)cookie;
+	if (strcmp(oid, TRUSTED_FW_NVCOUNTER_OID) == 0) {
+		uid_num = 3U;
+	} else if (strcmp(oid, NON_TRUSTED_FW_NVCOUNTER_OID) == 0) {
+		uid_num = 4U;
+	} else {
+		return 1;
+	}
+	sfp_val = (1U << (nv_ctr - 1));
+
+	if (sfp_write_oem_uid(uid_num, sfp_val) == 1) {
+		/* Enable POVDD on board */
+		if (board_enable_povdd()) {
+			sfp_program_fuses();
+		}
+
+		/* Disable POVDD on board */
+		board_disable_povdd();
+	} else {
+		ERROR("Invalid OEM UID sent.\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size)
+{
+	return get_mbedtls_heap_helper(heap_addr, heap_size);
+}