Dear Sir.
I was have a experence like you.
And i was resolved. To implementation the "tpm set_enable" command on
u-boot.
My source is see below.
=================================================
/* Control code of startup */
static
uchar cmd_startup[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0C, 0x00, 0x00,
0x00, 0x99, 0x00, 0x01
};
/* Control code of physPres_present */
static
uchar cmd_physPres_present[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0C, 0x40, 0x00,
0x00, 0x0A, 0x00, 0x08
};
/* Control code of physEnable */
static
uchar cmd_physEnable[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0A, 0x00, 0x00,
0x00, 0x6F
};
/* Control code of physicalDisable */
static
uchar cmd_physicalDisable[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0A, 0x00, 0x00,
0x00, 0x70
};
/* Control code of physicalSetDeactivated_false */
static
uchar cmd_physicalSetDeactivated_false[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0B, 0x00, 0x00,
0x00, 0x72, 0x00
};
/* Control code of physicalSetDeactivated_true */
static
uchar cmd_physicalSetDeactivated_true[] = {
0x00, 0xC1, 0x00, 0x00,
0x00, 0x0B, 0x00, 0x00,
0x00, 0x72, 0x01
};
static
int
__tpm_command(const uint cmd, /* tpm command */
const uint subAddr,/* I2C sub addr */
const uint mDelay, /* delay time between write and read */
const uint dump) /* If is set, will print out buffer to
console */
{
int len = 0;
int ret;
unsigned char *cmd_buf = NULL, r_buf[512];
switch(cmd)
{
case TPM_CMD_STARTUP:
printf("## TPM_CMD_STARTUP\n");
cmd_buf = cmd_startup;
len = sizeof(cmd_startup)/sizeof(uchar);
break;
case TPM_CMD_PHYS_PRES_PRESENT:
printf("## TPM_CMD_PHYS_PRES_PRESENT\n");
cmd_buf = cmd_physPres_present;
len = sizeof(cmd_physPres_present)/sizeof(uchar);
break;
case TPM_CMD_PHYS_ENABLE:
printf("## TPM_CMD_PHYS_ENABLE\n");
cmd_buf = cmd_physEnable;
len = sizeof(cmd_physEnable)/sizeof(uchar);
break;
case TPM_CMD_PHYS_DISABLE:
printf("## TPM_CMD_PHYS_DISABLE\n");
cmd_buf = cmd_physicalDisable;
len = sizeof(cmd_physicalDisable)/sizeof(uchar);
break;
case TPM_CMD_PHYS_SET_DEACTIVATED_FALSE:
printf("## TPM_CMD_PHYS_SET_DEACTIVATED_FALSE\n");
cmd_buf = cmd_physicalSetDeactivated_false;
len = sizeof(cmd_physicalSetDeactivated_false)/sizeof(uchar);
break;
case TPM_CMD_PHYS_SET_DEACTIVATED_TRUE:
printf("## TPM_CMD_PHYS_SET_DEACTIVATED_TRUE\n");
cmd_buf = cmd_physicalSetDeactivated_true;
len = sizeof(cmd_physicalSetDeactivated_true)/sizeof(uchar);
break;
default:
printf("%s() : Wrong command\n", __FUNCTION__);
break;
}
memset(r_buf, 0x00, sizeof(r_buf));
ret = tpm_i2c_write(subAddr, cmd_buf, len, dump);
mdelay(mDelay);
ret = tpm_i2c_read(subAddr, r_buf, sizeof(r_buf), dump);
mdelay(10);
return ret;
}
static
int
do_tpm_setEnable(cmd_tbl_t *cmdtp,
int flag,
int argc,
char * const argv[])
{
int subAddr = CONFIG_TPM_ATMEL_ADDR;
FUNC_DEBUG("# %s(), subAddr 0x%x\n", __FUNCTION__,
CONFIG_TPM_ATMEL_ADDR);
if (!FLAG_TPM_POWER_UP)
{
do_tpm_power_up(cmdtp, flag, argc, argv);
}
__tpm_command(TPM_CMD_STARTUP, subAddr, 100, ENABLE);
__tpm_command(TPM_CMD_PHYS_PRES_PRESENT, subAddr, 10, ENABLE);
__tpm_command(TPM_CMD_PHYS_ENABLE, subAddr, 10, ENABLE);
__tpm_command(TPM_CMD_PHYS_SET_DEACTIVATED_FALSE, subAddr, 10, ENABLE);
return 0;
}
=================================================
Please refer this code.
Thank you.
2016-07-19 오후 3:51에 mipsan.K 이(가) 쓴 글:
Dear,
I'm handling a TPM with Exynos5422, and Debian Jessie as an OS.
TPM is connected via I2C with SoC.
- Kernel ver: 3.10.96
- Debian Jessie 8.1
- trousers: 0.3.13-4
- tpm-tools: 1.3.8-2
After start TrouSers, tpm_version command shows as follow;
Restarting trousers (via systemctl): trousers.service.
TPM 1.2 Version Info:
Chip Version: 1.2.133.32
Spec Level: 2
Errata Revision: 3
TPM Vendor ID: IFX
Vendor Specific data: 85200050 0074706d 3438ffff ff
TPM Version: 01010000
Manufacturer Info: 49465800
However, when I try to takeownership, it returns an error as follow;
and setenable as well.
root@odroid:/home/odroid# tpm_takeownership
Enter owner password:
Confirm password:
Enter SRK password:
Confirm password:
Tspi_TPM_TakeOwnership failed: 0x00000007 - layer=tpm, code=0007 (7),
TPM is disabled
root@odroid:/home/odroid# tpm_clear -f
Tspi_TPM_ClearOwner failed: 0x00000007 - layer=tpm, code=0007 (7), TPM
is disabled
root@odroid:/home/odroid# tpm_setenable -e
Enter owner password:
Tspi_TPM_SetStatus failed: 0x00000001 - layer=tpm, code=0001 (1),
Authentication failed
root@odroid:/home/odroid# tpm_setenable -e
Enter owner password:
Tspi_TPM_SetStatus failed: 0x00000803 - layer=tpm, code=0803 (2051),
TPM is defending against dictionary attacks and is in some time-out period
-------------------------
I cannot clear TPM nor get ownership for further job.
Any idea would be appreciated.
Thanks
mipsan
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------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity planning
reports.http://sdm.link/zohodev2dev
_______________________________________________
TrouSerS-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/trousers-users
