text: // SPDX-License-Identifier: GPL-2.0+
  /*
   * Copyright (c) 2013 The Chromium OS Authors.
   */
  
  #include <common.h>
  #include <malloc.h>
  #include <asm/unaligned.h>
  #include <tpm-common.h>
  #include <tpm-v1.h>
  #include "tpm-user-utils.h"
  
  static int do_tpm_startup(cmd_tbl_t *cmdtp, int flag, int argc,
  			  char * const argv[])
  {
  	enum tpm_startup_type mode;
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  	if (argc != 2)
  		return CMD_RET_USAGE;
  	if (!strcasecmp("TPM_ST_CLEAR", argv[1])) {
  		mode = TPM_ST_CLEAR;
  	} else if (!strcasecmp("TPM_ST_STATE", argv[1])) {
  		mode = TPM_ST_STATE;
  	} else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) {
  		mode = TPM_ST_DEACTIVATED;
  	} else {
  		printf("Couldn't recognize mode string: %s\n", argv[1]);
  		return CMD_RET_FAILURE;
  	}
  
  	return report_return_code(tpm_startup(dev, mode));
  }
  
  static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag, int argc,
  				  char * const argv[])
  {
  	u32 index, perm, size;
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 4)
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[1], NULL, 0);
  	perm = simple_strtoul(argv[2], NULL, 0);
  	size = simple_strtoul(argv[3], NULL, 0);
  
  	return report_return_code(tpm_nv_define_space(dev, index, perm, size));
  }
  
  static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag, int argc,
  				char * const argv[])
  {
  	u32 index, count, rc;
  	struct udevice *dev;
  	void *data;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 4)
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[1], NULL, 0);
  	data = (void *)simple_strtoul(argv[2], NULL, 0);
  	count = simple_strtoul(argv[3], NULL, 0);
  
  	rc = tpm_nv_read_value(dev, index, data, count);
  	if (!rc) {
  		puts("area content:\n");
  		print_byte_string(data, count);
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag, int argc,
  				 char * const argv[])
  {
  	struct udevice *dev;
  	u32 index, rc;
  	size_t count;
  	void *data;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 3)
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[1], NULL, 0);
  	data = parse_byte_string(argv[2], NULL, &count);
  	if (!data) {
  		printf("Couldn't parse byte string %s\n", argv[2]);
  		return CMD_RET_FAILURE;
  	}
  
  	rc = tpm_nv_write_value(dev, index, data, count);
  	free(data);
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag, int argc,
  			 char * const argv[])
  {
  	u8 in_digest[20], out_digest[20];
  	struct udevice *dev;
  	u32 index, rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 3)
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[1], NULL, 0);
  	if (!parse_byte_string(argv[2], in_digest, NULL)) {
  		printf("Couldn't parse byte string %s\n", argv[2]);
  		return CMD_RET_FAILURE;
  	}
  
  	rc = tpm_extend(dev, index, in_digest, out_digest);
  	if (!rc) {
  		puts("PCR value after execution of the command:\n");
  		print_byte_string(out_digest, sizeof(out_digest));
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag, int argc,
  			   char * const argv[])
  {
  	u32 index, count, rc;
  	struct udevice *dev;
  	void *data;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 4)
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[1], NULL, 0);
  	data = (void *)simple_strtoul(argv[2], NULL, 0);
  	count = simple_strtoul(argv[3], NULL, 0);
  
  	rc = tpm_pcr_read(dev, index, data, count);
  	if (!rc) {
  		puts("Named PCR content:\n");
  		print_byte_string(data, count);
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag, int argc,
  					char * const argv[])
  {
  	struct udevice *dev;
  	u16 presence;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 2)
  		return CMD_RET_USAGE;
  	presence = (u16)simple_strtoul(argv[1], NULL, 0);
  
  	return report_return_code(tpm_tsc_physical_presence(dev, presence));
  }
  
  static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag, int argc,
  			     char * const argv[])
  {
  	struct udevice *dev;
  	u32 count, rc;
  	void *data;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 3)
  		return CMD_RET_USAGE;
  	data = (void *)simple_strtoul(argv[1], NULL, 0);
  	count = simple_strtoul(argv[2], NULL, 0);
  
  	rc = tpm_read_pubek(dev, data, count);
  	if (!rc) {
  		puts("pubek value:\n");
  		print_byte_string(data, count);
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag, int argc,
  					   char * const argv[])
  {
  	struct udevice *dev;
  	u8 state;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 2)
  		return CMD_RET_USAGE;
  	state = (u8)simple_strtoul(argv[1], NULL, 0);
  
  	return report_return_code(tpm_physical_set_deactivated(dev, state));
  }
  
  static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag, int argc,
  				 char * const argv[])
  {
  	u32 cap_area, sub_cap, rc;
  	void *cap;
  	size_t count;
  	struct udevice *dev;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 5)
  		return CMD_RET_USAGE;
  	cap_area = simple_strtoul(argv[1], NULL, 0);
  	sub_cap = simple_strtoul(argv[2], NULL, 0);
  	cap = (void *)simple_strtoul(argv[3], NULL, 0);
  	count = simple_strtoul(argv[4], NULL, 0);
  
  	rc = tpm_get_capability(dev, cap_area, sub_cap, cap, count);
  	if (!rc) {
  		puts("capability information:\n");
  		print_byte_string(cap, count);
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag, int argc,
  			       char * const argv[])
  {
  	struct udevice *dev;
  	void *command;
  	u8 response[1024];
  	size_t count, response_length = sizeof(response);
  	u32 rc;
  
  	command = parse_byte_string(argv[1], NULL, &count);
  	if (!command) {
  		printf("Couldn't parse byte string %s\n", argv[1]);
  		return CMD_RET_FAILURE;
  	}
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	rc = tpm_xfer(dev, command, count, response, &response_length);
  	free(command);
  	if (!rc) {
  		puts("tpm response:\n");
  		print_byte_string(response, response_length);
  	}
  
  	return report_return_code(rc);
  }
  
  static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag, int argc,
  			    char * const argv[])
  {
  	u32 index, perm, size;
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 4)
  		return CMD_RET_USAGE;
  	size = type_string_get_space_size(argv[1]);
  	if (!size) {
  		printf("Couldn't parse arguments\n");
  		return CMD_RET_USAGE;
  	}
  	index = simple_strtoul(argv[2], NULL, 0);
  	perm = simple_strtoul(argv[3], NULL, 0);
  
  	return report_return_code(tpm_nv_define_space(dev, index, perm, size));
  }
  
  static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag, int argc,
  			  char * const argv[])
  {
  	u32 index, count, err;
  	struct udevice *dev;
  	void *data;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc < 3)
  		return CMD_RET_USAGE;
  	if (argc != 3 + type_string_get_num_values(argv[1]))
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[2], NULL, 0);
  	data = type_string_alloc(argv[1], &count);
  	if (!data) {
  		printf("Couldn't parse arguments\n");
  		return CMD_RET_USAGE;
  	}
  
  	err = tpm_nv_read_value(dev, index, data, count);
  	if (!err) {
  		if (type_string_write_vars(argv[1], data, argv + 3)) {
  			printf("Couldn't write to variables\n");
  			err = ~0;
  		}
  	}
  	free(data);
  
  	return report_return_code(err);
  }
  
  static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag, int argc,
  			   char * const argv[])
  {
  	u32 index, count, err;
  	struct udevice *dev;
  	void *data;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc < 3)
  		return CMD_RET_USAGE;
  	if (argc != 3 + type_string_get_num_values(argv[1]))
  		return CMD_RET_USAGE;
  	index = simple_strtoul(argv[2], NULL, 0);
  	data = type_string_alloc(argv[1], &count);
  	if (!data) {
  		printf("Couldn't parse arguments\n");
  		return CMD_RET_USAGE;
  	}
  	if (type_string_pack(argv[1], argv + 3, data)) {
  		printf("Couldn't parse arguments\n");
  		free(data);
  		return CMD_RET_USAGE;
  	}
  
  	err = tpm_nv_write_value(dev, index, data, count);
  	free(data);
  
  	return report_return_code(err);
  }
  
  #ifdef CONFIG_TPM_AUTH_SESSIONS
  
  static int do_tpm_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
  		       char * const argv[])
  {
  	u32 auth_handle, err;
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	err = tpm_oiap(dev, &auth_handle);
  
  	return report_return_code(err);
  }
  
  #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
  static int do_tpm_load_key_by_sha1(cmd_tbl_t *cmdtp, int flag, int argc, char *
  				   const argv[])
  {
  	u32 parent_handle = 0;
  	u32 key_len, key_handle, err;
  	u8 usage_auth[DIGEST_LENGTH];
  	u8 parent_hash[DIGEST_LENGTH];
  	void *key;
  	struct udevice *dev;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc < 5)
  		return CMD_RET_USAGE;
  
  	parse_byte_string(argv[1], parent_hash, NULL);
  	key = (void *)simple_strtoul(argv[2], NULL, 0);
  	key_len = simple_strtoul(argv[3], NULL, 0);
  	if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
  		return CMD_RET_FAILURE;
  	parse_byte_string(argv[4], usage_auth, NULL);
  
  	err = tpm_find_key_sha1(usage_auth, parent_hash, &parent_handle);
  	if (err) {
  		printf("Could not find matching parent key (err = %d)\n", err);
  		return CMD_RET_FAILURE;
  	}
  
  	printf("Found parent key %08x\n", parent_handle);
  
  	err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth,
  				 &key_handle);
  	if (!err) {
  		printf("Key handle is 0x%x\n", key_handle);
  		env_set_hex("key_handle", key_handle);
  	}
  
  	return report_return_code(err);
  }
  #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
  
  static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
  				 char * const argv[])
  {
  	u32 parent_handle, key_len, key_handle, err;
  	u8 usage_auth[DIGEST_LENGTH];
  	void *key;
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc < 5)
  		return CMD_RET_USAGE;
  
  	parent_handle = simple_strtoul(argv[1], NULL, 0);
  	key = (void *)simple_strtoul(argv[2], NULL, 0);
  	key_len = simple_strtoul(argv[3], NULL, 0);
  	if (strlen(argv[4]) != 2 * DIGEST_LENGTH)
  		return CMD_RET_FAILURE;
  	parse_byte_string(argv[4], usage_auth, NULL);
  
  	err = tpm_load_key2_oiap(dev, parent_handle, key, key_len, usage_auth,
  				 &key_handle);
  	if (!err)
  		printf("Key handle is 0x%x\n", key_handle);
  
  	return report_return_code(err);
  }
  
  static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag, int argc,
  				   char * const argv[])
  {
  	u32 key_handle, err;
  	u8 usage_auth[DIGEST_LENGTH];
  	u8 pub_key_buffer[TPM_PUBKEY_MAX_LENGTH];
  	size_t pub_key_len = sizeof(pub_key_buffer);
  	struct udevice *dev;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc < 3)
  		return CMD_RET_USAGE;
  
  	key_handle = simple_strtoul(argv[1], NULL, 0);
  	if (strlen(argv[2]) != 2 * DIGEST_LENGTH)
  		return CMD_RET_FAILURE;
  	parse_byte_string(argv[2], usage_auth, NULL);
  
  	err = tpm_get_pub_key_oiap(dev, key_handle, usage_auth, pub_key_buffer,
  				   &pub_key_len);
  	if (!err) {
  		printf("dump of received pub key structure:\n");
  		print_byte_string(pub_key_buffer, pub_key_len);
  	}
  	return report_return_code(err);
  }
  
  TPM_COMMAND_NO_ARG(tpm_end_oiap)
  
  #endif /* CONFIG_TPM_AUTH_SESSIONS */
  
  #ifdef CONFIG_TPM_FLUSH_RESOURCES
  static int do_tpm_flush(cmd_tbl_t *cmdtp, int flag, int argc,
  			char * const argv[])
  {
  	struct udevice *dev;
  	int type = 0;
  	int rc;
  
  	rc = get_tpm(&dev);
  	if (rc)
  		return rc;
  
  	if (argc != 3)
  		return CMD_RET_USAGE;
  
  	if (!strcasecmp(argv[1], "key"))
  		type = TPM_RT_KEY;
  	else if (!strcasecmp(argv[1], "auth"))
  		type = TPM_RT_AUTH;
  	else if (!strcasecmp(argv[1], "hash"))
  		type = TPM_RT_HASH;
  	else if (!strcasecmp(argv[1], "trans"))
  		type = TPM_RT_TRANS;
  	else if (!strcasecmp(argv[1], "context"))
  		type = TPM_RT_CONTEXT;
  	else if (!strcasecmp(argv[1], "counter"))
  		type = TPM_RT_COUNTER;
  	else if (!strcasecmp(argv[1], "delegate"))
  		type = TPM_RT_DELEGATE;
  	else if (!strcasecmp(argv[1], "daa_tpm"))
  		type = TPM_RT_DAA_TPM;
  	else if (!strcasecmp(argv[1], "daa_v0"))
  		type = TPM_RT_DAA_V0;
  	else if (!strcasecmp(argv[1], "daa_v1"))
  		type = TPM_RT_DAA_V1;
  
  	if (!type) {
  		printf("Resource type %s unknown.\n", argv[1]);
  		return -1;
  	}
  
  	if (!strcasecmp(argv[2], "all")) {
  		u16 res_count;
  		u8 buf[288];
  		u8 *ptr;
  		int err;
  		uint i;
  
  		/* fetch list of already loaded resources in the TPM */
  		err = tpm_get_capability(dev, TPM_CAP_HANDLE, type, buf,
  					 sizeof(buf));
  		if (err) {
  			printf("tpm_get_capability returned error %d.\n", err);
  			return -1;
  		}
  		res_count = get_unaligned_be16(buf);
  		ptr = buf + 2;
  		for (i = 0; i < res_count; ++i, ptr += 4)
  			tpm_flush_specific(dev, get_unaligned_be32(ptr), type);
  	} else {
  		u32 handle = simple_strtoul(argv[2], NULL, 0);
  
  		if (!handle) {
  			printf("Illegal resource handle %s\n", argv[2]);
  			return -1;
  		}
  		tpm_flush_specific(dev, cpu_to_be32(handle), type);
  	}
  
  	return 0;
  }
  #endif /* CONFIG_TPM_FLUSH_RESOURCES */
  
  #ifdef CONFIG_TPM_LIST_RESOURCES
  static int do_tpm_list(cmd_tbl_t *cmdtp, int flag, int argc,
  		       char * const argv[])
  {
  	int type = 0;
  	u16 res_count;
  	u8 buf[288];
  	u8 *ptr;
  	int err;
  	uint i;
  
  	if (argc != 2)
  		return CMD_RET_USAGE;
  
  	if (!strcasecmp(argv[1], "key"))
  		type = TPM_RT_KEY;
  	else if (!strcasecmp(argv[1], "auth"))
  		type = TPM_RT_AUTH;
  	else if (!strcasecmp(argv[1], "hash"))
  		type = TPM_RT_HASH;
  	else if (!strcasecmp(argv[1], "trans"))
  		type = TPM_RT_TRANS;
  	else if (!strcasecmp(argv[1], "context"))
  		type = TPM_RT_CONTEXT;
  	else if (!strcasecmp(argv[1], "counter"))
  		type = TPM_RT_COUNTER;
  	else if (!strcasecmp(argv[1], "delegate"))
  		type = TPM_RT_DELEGATE;
  	else if (!strcasecmp(argv[1], "daa_tpm"))
  		type = TPM_RT_DAA_TPM;
  	else if (!strcasecmp(argv[1], "daa_v0"))
  		type = TPM_RT_DAA_V0;
  	else if (!strcasecmp(argv[1], "daa_v1"))
  		type = TPM_RT_DAA_V1;
  
  	if (!type) {
  		printf("Resource type %s unknown.\n", argv[1]);
  		return -1;
  	}
  
  	/* fetch list of already loaded resources in the TPM */
  	err = tpm_get_capability(TPM_CAP_HANDLE, type, buf,
  				 sizeof(buf));
  	if (err) {
  		printf("tpm_get_capability returned error %d.\n", err);
  		return -1;
  	}
  	res_count = get_unaligned_be16(buf);
  	ptr = buf + 2;
  
  	printf("Resources of type %s (%02x):\n", argv[1], type);
  	if (!res_count) {
  		puts("None\n");
  	} else {
  		for (i = 0; i < res_count; ++i, ptr += 4)
  			printf("Index %d: %08x\n", i, get_unaligned_be32(ptr));
  	}
  
  	return 0;
  }
  #endif /* CONFIG_TPM_LIST_RESOURCES */
  
  TPM_COMMAND_NO_ARG(tpm_self_test_full)
  TPM_COMMAND_NO_ARG(tpm_continue_self_test)
  TPM_COMMAND_NO_ARG(tpm_force_clear)
  TPM_COMMAND_NO_ARG(tpm_physical_enable)
  TPM_COMMAND_NO_ARG(tpm_physical_disable)
  
  static cmd_tbl_t tpm1_commands[] = {
  	U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""),
  	U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""),
  	U_BOOT_CMD_MKENT(startup, 0, 1,
  			 do_tpm_startup, "", ""),
  	U_BOOT_CMD_MKENT(self_test_full, 0, 1,
  			 do_tpm_self_test_full, "", ""),
  	U_BOOT_CMD_MKENT(continue_self_test, 0, 1,
  			 do_tpm_continue_self_test, "", ""),
  	U_BOOT_CMD_MKENT(force_clear, 0, 1,
  			 do_tpm_force_clear, "", ""),
  	U_BOOT_CMD_MKENT(physical_enable, 0, 1,
  			 do_tpm_physical_enable, "", ""),
  	U_BOOT_CMD_MKENT(physical_disable, 0, 1,
  			 do_tpm_physical_disable, "", ""),
  	U_BOOT_CMD_MKENT(nv_define_space, 0, 1,
  			 do_tpm_nv_define_space, "", ""),
  	U_BOOT_CMD_MKENT(nv_read_value, 0, 1,
  			 do_tpm_nv_read_value, "", ""),
  	U_BOOT_CMD_MKENT(nv_write_value, 0, 1,
  			 do_tpm_nv_write_value, "", ""),
  	U_BOOT_CMD_MKENT(extend, 0, 1,
  			 do_tpm_extend, "", ""),
  	U_BOOT_CMD_MKENT(pcr_read, 0, 1,
  			 do_tpm_pcr_read, "", ""),
  	U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1,
  			 do_tpm_tsc_physical_presence, "", ""),
  	U_BOOT_CMD_MKENT(read_pubek, 0, 1,
  			 do_tpm_read_pubek, "", ""),
  	U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1,
  			 do_tpm_physical_set_deactivated, "", ""),
  	U_BOOT_CMD_MKENT(get_capability, 0, 1,
  			 do_tpm_get_capability, "", ""),
  	U_BOOT_CMD_MKENT(raw_transfer, 0, 1,
  			 do_tpm_raw_transfer, "", ""),
  	U_BOOT_CMD_MKENT(nv_define, 0, 1,
  			 do_tpm_nv_define, "", ""),
  	U_BOOT_CMD_MKENT(nv_read, 0, 1,
  			 do_tpm_nv_read, "", ""),
  	U_BOOT_CMD_MKENT(nv_write, 0, 1,
  			 do_tpm_nv_write, "", ""),
  #ifdef CONFIG_TPM_AUTH_SESSIONS
  	U_BOOT_CMD_MKENT(oiap, 0, 1,
  			 do_tpm_oiap, "", ""),
  	U_BOOT_CMD_MKENT(end_oiap, 0, 1,
  			 do_tpm_end_oiap, "", ""),
  	U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1,
  			 do_tpm_load_key2_oiap, "", ""),
  #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
  	U_BOOT_CMD_MKENT(load_key_by_sha1, 0, 1,
  			 do_tpm_load_key_by_sha1, "", ""),
  #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
  	U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1,
  			 do_tpm_get_pub_key_oiap, "", ""),
  #endif /* CONFIG_TPM_AUTH_SESSIONS */
  #ifdef CONFIG_TPM_FLUSH_RESOURCES
  	U_BOOT_CMD_MKENT(flush, 0, 1,
  			 do_tpm_flush, "", ""),
  #endif /* CONFIG_TPM_FLUSH_RESOURCES */
  #ifdef CONFIG_TPM_LIST_RESOURCES
  	U_BOOT_CMD_MKENT(list, 0, 1,
  			 do_tpm_list, "", ""),
  #endif /* CONFIG_TPM_LIST_RESOURCES */
  };
  
  cmd_tbl_t *get_tpm1_commands(unsigned int *size)
  {
  	*size = ARRAY_SIZE(tpm1_commands);
  
  	return tpm1_commands;
  }
  
  U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm,
  "Issue a TPMv1.x command",
  "cmd args...\n"
  "    - Issue TPM command <cmd> with arguments <args...>.\n"
  "Admin Startup and State Commands:\n"
  "  info - Show information about the TPM\n"
  "  init\n"
  "    - Put TPM into a state where it waits for 'startup' command.\n"
  "  startup mode\n"
  "    - Issue TPM_Starup command.  <mode> is one of TPM_ST_CLEAR,\n"
  "      TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n"
  "Admin Testing Commands:\n"
  "  self_test_full\n"
  "    - Test all of the TPM capabilities.\n"
  "  continue_self_test\n"
  "    - Inform TPM that it should complete the self-test.\n"
  "Admin Opt-in Commands:\n"
  "  physical_enable\n"
  "    - Set the PERMANENT disable flag to FALSE using physical presence as\n"
  "      authorization.\n"
  "  physical_disable\n"
  "    - Set the PERMANENT disable flag to TRUE using physical presence as\n"
  "      authorization.\n"
  "  physical_set_deactivated 0|1\n"
  "    - Set deactivated flag.\n"
  "Admin Ownership Commands:\n"
  "  force_clear\n"
  "    - Issue TPM_ForceClear command.\n"
  "  tsc_physical_presence flags\n"
  "    - Set TPM device's Physical Presence flags to <flags>.\n"
  "The Capability Commands:\n"
  "  get_capability cap_area sub_cap addr count\n"
  "    - Read <count> bytes of TPM capability indexed by <cap_area> and\n"
  "      <sub_cap> to memory address <addr>.\n"
  #if defined(CONFIG_TPM_FLUSH_RESOURCES) || defined(CONFIG_TPM_LIST_RESOURCES)
  "Resource management functions\n"
  #endif
  #ifdef CONFIG_TPM_FLUSH_RESOURCES
  "  flush resource_type id\n"
  "    - flushes a resource of type <resource_type> (may be one of key, auth,\n"
  "      hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
  "      and id <id> from the TPM. Use an <id> of \"all\" to flush all\n"
  "      resources of that type.\n"
  #endif /* CONFIG_TPM_FLUSH_RESOURCES */
  #ifdef CONFIG_TPM_LIST_RESOURCES
  "  list resource_type\n"
  "    - lists resources of type <resource_type> (may be one of key, auth,\n"
  "      hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n"
  "      contained in the TPM.\n"
  #endif /* CONFIG_TPM_LIST_RESOURCES */
  #ifdef CONFIG_TPM_AUTH_SESSIONS
  "Storage functions\n"
  "  loadkey2_oiap parent_handle key_addr key_len usage_auth\n"
  "    - loads a key data from memory address <key_addr>, <key_len> bytes\n"
  "      into TPM using the parent key <parent_handle> with authorization\n"
  "      <usage_auth> (20 bytes hex string).\n"
  #ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1
  "  load_key_by_sha1 parent_hash key_addr key_len usage_auth\n"
  "    - loads a key data from memory address <key_addr>, <key_len> bytes\n"
  "      into TPM using the parent hash <parent_hash> (20 bytes hex string)\n"
  "      with authorization <usage_auth> (20 bytes hex string).\n"
  #endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */
  "  get_pub_key_oiap key_handle usage_auth\n"
  "    - get the public key portion of a loaded key <key_handle> using\n"
  "      authorization <usage auth> (20 bytes hex string)\n"
  #endif /* CONFIG_TPM_AUTH_SESSIONS */
  "Endorsement Key Handling Commands:\n"
  "  read_pubek addr count\n"
  "    - Read <count> bytes of the public endorsement key to memory\n"
  "      address <addr>\n"
  "Integrity Collection and Reporting Commands:\n"
  "  extend index digest_hex_string\n"
  "    - Add a new measurement to a PCR.  Update PCR <index> with the 20-bytes\n"
  "      <digest_hex_string>\n"
  "  pcr_read index addr count\n"
  "    - Read <count> bytes from PCR <index> to memory address <addr>.\n"
  #ifdef CONFIG_TPM_AUTH_SESSIONS
  "Authorization Sessions\n"
  "  oiap\n"
  "    - setup an OIAP session\n"
  "  end_oiap\n"
  "    - terminates an active OIAP session\n"
  #endif /* CONFIG_TPM_AUTH_SESSIONS */
  "Non-volatile Storage Commands:\n"
  "  nv_define_space index permission size\n"
  "    - Establish a space at index <index> with <permission> of <size> bytes.\n"
  "  nv_read_value index addr count\n"
  "    - Read <count> bytes from space <index> to memory address <addr>.\n"
  "  nv_write_value index addr count\n"
  "    - Write <count> bytes from memory address <addr> to space <index>.\n"
  "Miscellaneous helper functions:\n"
  "  raw_transfer byte_string\n"
  "    - Send a byte string <byte_string> to TPM and print the response.\n"
  " Non-volatile storage helper functions:\n"
  "    These helper functions treat a non-volatile space as a non-padded\n"
  "    sequence of integer values.  These integer values are defined by a type\n"
  "    string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n"
  "    value, 'w' 16-bit value, 'd' 32-bit value.  All helper functions take\n"
  "    a type string as their first argument.\n"
  "  nv_define type_string index perm\n"
  "    - Define a space <index> with permission <perm>.\n"
  "  nv_read types_string index vars...\n"
  "    - Read from space <index> to environment variables <vars...>.\n"
  "  nv_write types_string index values...\n"
  "    - Write to space <index> from values <values...>.\n"
  );
  