Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-16 17:58:23 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/arch/arm/mach-imx/imx8/snvs_security_sc.c
Franck LENORMAND 242d1cd69b imx8: Configure SNVS 
Add a module to configure the tamper and secure violation of
the SNVS using the SCU API.

The module also adds some commands:
 - snvs_cfg: Configure the SNVS HP and LP registers
 - snvs_dgo_cfg: Configure the SNVS DGO bloc if present (8QXP)
 - tamper_pin_cfg: Change the configuration of the tamper pins
 - snvs_clear_status: Allow to write to LPSR and LPTDSR to clear
   status bits

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2020-05-01 13:46:22 +02:00

923 lines
23 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019-2020 NXP.
*/
/*
* Configuration of the Tamper pins in different mode:
* - default (no tamper pins): _default_
* - passive mode expecting VCC on the line: "_passive_vcc_"
* - passive mode expecting VCC on the line: "_passive_gnd_"
* - active mode: "_active_"
*/
#include <command.h>
#include <log.h>
#include <stddef.h>
#include <common.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch-imx8/imx8-pins.h>
#include <asm/arch-imx8/snvs_security_sc.h>
/* Access to gd */
DECLARE_GLOBAL_DATA_PTR;
#define SC_WRITE_CONF 1
#define PGD_HEX_VALUE 0x41736166
#define SRTC_EN 0x1
#define DP_EN BIT(5)
struct snvs_security_sc_conf {
struct snvs_hp_conf {
u32 lock; /* HPLR - HP Lock */
u32 __cmd; /* HPCOMR - HP Command */
u32 __ctl; /* HPCR - HP Control */
u32 secvio_intcfg; /* HPSICR - Security Violation Int
* Config
*/
u32 secvio_ctl; /* HPSVCR - Security Violation Control*/
u32 status; /* HPSR - HP Status */
u32 secvio_status; /* HPSVSR - Security Violation Status */
u32 __ha_counteriv; /* High Assurance Counter IV */
u32 __ha_counter; /* High Assurance Counter */
u32 __rtc_msb; /* Real Time Clock/Counter MSB */
u32 __rtc_lsb; /* Real Time Counter LSB */
u32 __time_alarm_msb; /* Time Alarm MSB */
u32 __time_alarm_lsb; /* Time Alarm LSB */
} hp;
struct snvs_lp_conf {
u32 lock;
u32 __ctl;
u32 __mstr_key_ctl; /* Master Key Control */
u32 secvio_ctl; /* Security Violation Control */
u32 tamper_filt_cfg; /* Tamper Glitch Filters Configuration*/
u32 tamper_det_cfg; /* Tamper Detectors Configuration */
u32 status;
u32 __srtc_msb; /* Secure Real Time Clock/Counter MSB */
u32 __srtc_lsb; /* Secure Real Time Clock/Counter LSB */
u32 __time_alarm; /* Time Alarm */
u32 __smc_msb; /* Secure Monotonic Counter MSB */
u32 __smc_lsb; /* Secure Monotonic Counter LSB */
u32 __pwr_glitch_det; /* Power Glitch Detector */
u32 __gen_purpose;
u8 __zmk[32]; /* Zeroizable Master Key */
u32 __rsvd0;
u32 __gen_purposes[4]; /* gp0_30 to gp0_33 */
u32 tamper_det_cfg2; /* Tamper Detectors Configuration2 */
u32 tamper_det_status; /* Tamper Detectors status */
u32 tamper_filt1_cfg; /* Tamper Glitch Filter1 Configuration*/
u32 tamper_filt2_cfg; /* Tamper Glitch Filter2 Configuration*/
u32 __rsvd1[4];
u32 act_tamper1_cfg; /* Active Tamper1 Configuration */
u32 act_tamper2_cfg; /* Active Tamper2 Configuration */
u32 act_tamper3_cfg; /* Active Tamper3 Configuration */
u32 act_tamper4_cfg; /* Active Tamper4 Configuration */
u32 act_tamper5_cfg; /* Active Tamper5 Configuration */
u32 __rsvd2[3];
u32 act_tamper_ctl; /* Active Tamper Control */
u32 act_tamper_clk_ctl; /* Active Tamper Clock Control */
u32 act_tamper_routing_ctl1;/* Active Tamper Routing Control1 */
u32 act_tamper_routing_ctl2;/* Active Tamper Routing Control2 */
} lp;
};
static struct snvs_security_sc_conf snvs_default_config = {
.hp = {
.lock = 0x1f0703ff,
.secvio_ctl = 0x3000007f,
},
.lp = {
.lock = 0x1f0003ff,
.secvio_ctl = 0x36,
.tamper_filt_cfg = 0,
.tamper_det_cfg = 0x76, /* analogic tampers
* + rollover tampers
*/
.tamper_det_cfg2 = 0,
.tamper_filt1_cfg = 0,
.tamper_filt2_cfg = 0,
.act_tamper1_cfg = 0,
.act_tamper2_cfg = 0,
.act_tamper3_cfg = 0,
.act_tamper4_cfg = 0,
.act_tamper5_cfg = 0,
.act_tamper_ctl = 0,
.act_tamper_clk_ctl = 0,
.act_tamper_routing_ctl1 = 0,
.act_tamper_routing_ctl2 = 0,
}
};
static struct snvs_security_sc_conf snvs_passive_vcc_config = {
.hp = {
.lock = 0x1f0703ff,
.secvio_ctl = 0x3000007f,
},
.lp = {
.lock = 0x1f0003ff,
.secvio_ctl = 0x36,
.tamper_filt_cfg = 0,
.tamper_det_cfg = 0x276, /* ET1 will trig on line at GND
* + analogic tampers
* + rollover tampers
*/
.tamper_det_cfg2 = 0,
.tamper_filt1_cfg = 0,
.tamper_filt2_cfg = 0,
.act_tamper1_cfg = 0,
.act_tamper2_cfg = 0,
.act_tamper3_cfg = 0,
.act_tamper4_cfg = 0,
.act_tamper5_cfg = 0,
.act_tamper_ctl = 0,
.act_tamper_clk_ctl = 0,
.act_tamper_routing_ctl1 = 0,
.act_tamper_routing_ctl2 = 0,
}
};
static struct snvs_security_sc_conf snvs_passive_gnd_config = {
.hp = {
.lock = 0x1f0703ff,
.secvio_ctl = 0x3000007f,
},
.lp = {
.lock = 0x1f0003ff,
.secvio_ctl = 0x36,
.tamper_filt_cfg = 0,
.tamper_det_cfg = 0xa76, /* ET1 will trig on line at VCC
* + analogic tampers
* + rollover tampers
*/
.tamper_det_cfg2 = 0,
.tamper_filt1_cfg = 0,
.tamper_filt2_cfg = 0,
.act_tamper1_cfg = 0,
.act_tamper2_cfg = 0,
.act_tamper3_cfg = 0,
.act_tamper4_cfg = 0,
.act_tamper5_cfg = 0,
.act_tamper_ctl = 0,
.act_tamper_clk_ctl = 0,
.act_tamper_routing_ctl1 = 0,
.act_tamper_routing_ctl2 = 0,
}
};
static struct snvs_security_sc_conf snvs_active_config = {
.hp = {
.lock = 0x1f0703ff,
.secvio_ctl = 0x3000007f,
},
.lp = {
.lock = 0x1f0003ff,
.secvio_ctl = 0x36,
.tamper_filt_cfg = 0x00800000, /* Enable filtering */
.tamper_det_cfg = 0x276, /* ET1 enabled + analogic tampers
* + rollover tampers
*/
.tamper_det_cfg2 = 0,
.tamper_filt1_cfg = 0,
.tamper_filt2_cfg = 0,
.act_tamper1_cfg = 0x84001111,
.act_tamper2_cfg = 0,
.act_tamper3_cfg = 0,
.act_tamper4_cfg = 0,
.act_tamper5_cfg = 0,
.act_tamper_ctl = 0x00010001,
.act_tamper_clk_ctl = 0,
.act_tamper_routing_ctl1 = 0x1,
.act_tamper_routing_ctl2 = 0,
}
};
static struct snvs_security_sc_conf *get_snvs_config(void)
{
return &snvs_default_config;
}
struct snvs_dgo_conf {
u32 tamper_offset_ctl;
u32 tamper_pull_ctl;
u32 tamper_ana_test_ctl;
u32 tamper_sensor_trim_ctl;
u32 tamper_misc_ctl;
u32 tamper_core_volt_mon_ctl;
};
static struct snvs_dgo_conf snvs_dgo_default_config = {
.tamper_misc_ctl = 0x80000000, /* Lock the DGO */
};
static struct snvs_dgo_conf snvs_dgo_passive_vcc_config = {
.tamper_misc_ctl = 0x80000000, /* Lock the DGO */
.tamper_pull_ctl = 0x00000001, /* Pull down ET1 */
.tamper_ana_test_ctl = 0x20000000, /* Enable tamper */
};
static struct snvs_dgo_conf snvs_dgo_passive_gnd_config = {
.tamper_misc_ctl = 0x80000000, /* Lock the DGO */
.tamper_pull_ctl = 0x00000401, /* Pull up ET1 */
.tamper_ana_test_ctl = 0x20000000, /* Enable tamper */
};
static struct snvs_dgo_conf snvs_dgo_active_config = {
.tamper_misc_ctl = 0x80000000, /* Lock the DGO */
.tamper_ana_test_ctl = 0x20000000, /* Enable tamper */
};
static struct snvs_dgo_conf *get_snvs_dgo_config(void)
{
return &snvs_dgo_default_config;
}
struct tamper_pin_cfg {
u32 pad;
u32 mux_conf;
};
static struct tamper_pin_cfg tamper_pin_list_default_config[] = {
{SC_P_CSI_D00, 0}, /* Tamp_Out0 */
{SC_P_CSI_D01, 0}, /* Tamp_Out1 */
{SC_P_CSI_D02, 0}, /* Tamp_Out2 */
{SC_P_CSI_D03, 0}, /* Tamp_Out3 */
{SC_P_CSI_D04, 0}, /* Tamp_Out4 */
{SC_P_CSI_D05, 0}, /* Tamp_In0 */
{SC_P_CSI_D06, 0}, /* Tamp_In1 */
{SC_P_CSI_D07, 0}, /* Tamp_In2 */
{SC_P_CSI_HSYNC, 0}, /* Tamp_In3 */
{SC_P_CSI_VSYNC, 0}, /* Tamp_In4 */
};
static struct tamper_pin_cfg tamper_pin_list_passive_vcc_config[] = {
{SC_P_CSI_D05, 0x1c000060}, /* Tamp_In0 */ /* Sel tamper + OD input */
};
static struct tamper_pin_cfg tamper_pin_list_passive_gnd_config[] = {
{SC_P_CSI_D05, 0x1c000060}, /* Tamp_In0 */ /* Sel tamper + OD input */
};
static struct tamper_pin_cfg tamper_pin_list_active_config[] = {
{SC_P_CSI_D00, 0x1a000060}, /* Tamp_Out0 */ /* Sel tamper + OD */
{SC_P_CSI_D05, 0x1c000060}, /* Tamp_In0 */ /* Sel tamper + OD input */
};
#define TAMPER_PIN_LIST_CHOSEN tamper_pin_list_default_config
static struct tamper_pin_cfg *get_tamper_pin_cfg_list(u32 *size)
{
*size = sizeof(TAMPER_PIN_LIST_CHOSEN) /
sizeof(TAMPER_PIN_LIST_CHOSEN[0]);
return TAMPER_PIN_LIST_CHOSEN;
}
#define SC_CONF_OFFSET_OF(_field) \
(offsetof(struct snvs_security_sc_conf, _field))
static u32 ptr_value(u32 *_p)
{
return (_p) ? *_p : 0xdeadbeef;
}
static int check_write_secvio_config(u32 id, u32 *_p1, u32 *_p2,
u32 *_p3, u32 *_p4, u32 *_p5,
u32 _cnt)
{
int scierr = 0;
u32 d1 = ptr_value(_p1);
u32 d2 = ptr_value(_p2);
u32 d3 = ptr_value(_p3);
u32 d4 = ptr_value(_p4);
u32 d5 = ptr_value(_p5);
scierr = sc_seco_secvio_config(-1, id, SC_WRITE_CONF, &d1, &d2, &d3,
&d4, &d4, _cnt);
if (scierr != SC_ERR_NONE) {
printf("Failed to set secvio configuration\n");
debug("Failed to set conf id 0x%x with values ", id);
debug("0x%.8x 0x%.8x 0x%.8x 0x%.8x 0x%.8x (cnt: %d)\n",
d1, d2, d3, d4, d5, _cnt);
goto exit;
}
if (_p1)
*(u32 *)_p1 = d1;
if (_p2)
*(u32 *)_p2 = d2;
if (_p3)
*(u32 *)_p3 = d3;
if (_p4)
*(u32 *)_p4 = d4;
if (_p5)
*(u32 *)_p5 = d5;
exit:
return scierr;
}
#define SC_CHECK_WRITE1(id, _p1) \
check_write_secvio_config(id, _p1, NULL, NULL, NULL, NULL, 1)
static int apply_snvs_config(struct snvs_security_sc_conf *cnf)
{
int scierr = 0;
debug("%s\n", __func__);
debug("Applying config:\n"
"\thp.lock = 0x%.8x\n"
"\thp.secvio_ctl = 0x%.8x\n"
"\tlp.lock = 0x%.8x\n"
"\tlp.secvio_ctl = 0x%.8x\n"
"\tlp.tamper_filt_cfg = 0x%.8x\n"
"\tlp.tamper_det_cfg = 0x%.8x\n"
"\tlp.tamper_det_cfg2 = 0x%.8x\n"
"\tlp.tamper_filt1_cfg = 0x%.8x\n"
"\tlp.tamper_filt2_cfg = 0x%.8x\n"
"\tlp.act_tamper1_cfg = 0x%.8x\n"
"\tlp.act_tamper2_cfg = 0x%.8x\n"
"\tlp.act_tamper3_cfg = 0x%.8x\n"
"\tlp.act_tamper4_cfg = 0x%.8x\n"
"\tlp.act_tamper5_cfg = 0x%.8x\n"
"\tlp.act_tamper_ctl = 0x%.8x\n"
"\tlp.act_tamper_clk_ctl = 0x%.8x\n"
"\tlp.act_tamper_routing_ctl1 = 0x%.8x\n"
"\tlp.act_tamper_routing_ctl2 = 0x%.8x\n",
cnf->hp.lock,
cnf->hp.secvio_ctl,
cnf->lp.lock,
cnf->lp.secvio_ctl,
cnf->lp.tamper_filt_cfg,
cnf->lp.tamper_det_cfg,
cnf->lp.tamper_det_cfg2,
cnf->lp.tamper_filt1_cfg,
cnf->lp.tamper_filt2_cfg,
cnf->lp.act_tamper1_cfg,
cnf->lp.act_tamper2_cfg,
cnf->lp.act_tamper3_cfg,
cnf->lp.act_tamper4_cfg,
cnf->lp.act_tamper5_cfg,
cnf->lp.act_tamper_ctl,
cnf->lp.act_tamper_clk_ctl,
cnf->lp.act_tamper_routing_ctl1,
cnf->lp.act_tamper_routing_ctl2);
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.tamper_filt_cfg),
&cnf->lp.tamper_filt_cfg,
&cnf->lp.tamper_filt1_cfg,
&cnf->lp.tamper_filt2_cfg, NULL,
NULL, 3);
if (scierr != SC_ERR_NONE)
goto exit;
/* Configure AT */
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.act_tamper1_cfg),
&cnf->lp.act_tamper1_cfg,
&cnf->lp.act_tamper2_cfg,
&cnf->lp.act_tamper2_cfg,
&cnf->lp.act_tamper2_cfg,
&cnf->lp.act_tamper2_cfg, 5);
if (scierr != SC_ERR_NONE)
goto exit;
/* Configure AT routing */
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.act_tamper_routing_ctl1),
&cnf->lp.act_tamper_routing_ctl1,
&cnf->lp.act_tamper_routing_ctl2,
NULL, NULL, NULL, 2);
if (scierr != SC_ERR_NONE)
goto exit;
/* Configure AT frequency */
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(lp.act_tamper_clk_ctl),
&cnf->lp.act_tamper_clk_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
/* Activate the ATs */
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(lp.act_tamper_ctl),
&cnf->lp.act_tamper_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
/* Activate the detectors */
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.tamper_det_cfg),
&cnf->lp.tamper_det_cfg,
&cnf->lp.tamper_det_cfg2, NULL, NULL,
NULL, 2);
if (scierr != SC_ERR_NONE)
goto exit;
/* Configure LP secvio */
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(lp.secvio_ctl),
&cnf->lp.secvio_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
/* Configure HP secvio */
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(hp.secvio_ctl),
&cnf->hp.secvio_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
/* Lock access */
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(hp.lock), &cnf->hp.lock);
if (scierr != SC_ERR_NONE)
goto exit;
scierr = SC_CHECK_WRITE1(SC_CONF_OFFSET_OF(lp.lock), &cnf->lp.lock);
if (scierr != SC_ERR_NONE)
goto exit;
exit:
return (scierr == SC_ERR_NONE) ? 0 : -EIO;
}
static int dgo_write(u32 _id, u8 _access, u32 *_pdata)
{
int scierr = sc_seco_secvio_dgo_config(-1, _id, _access, _pdata);
if (scierr != SC_ERR_NONE) {
printf("Failed to set dgo configuration\n");
debug("Failed to set conf id 0x%x : 0x%.8x", _id, *_pdata);
}
return scierr;
}
static int apply_snvs_dgo_config(struct snvs_dgo_conf *cnf)
{
int scierr = 0;
debug("%s\n", __func__);
debug("Applying config:\n"
"\ttamper_offset_ctl = 0x%.8x\n"
"\ttamper_pull_ctl = 0x%.8x\n"
"\ttamper_ana_test_ctl = 0x%.8x\n"
"\ttamper_sensor_trim_ctl = 0x%.8x\n"
"\ttamper_misc_ctl = 0x%.8x\n"
"\ttamper_core_volt_mon_ctl = 0x%.8x\n",
cnf->tamper_offset_ctl,
cnf->tamper_pull_ctl,
cnf->tamper_ana_test_ctl,
cnf->tamper_sensor_trim_ctl,
cnf->tamper_misc_ctl,
cnf->tamper_core_volt_mon_ctl);
dgo_write(0x04, 1, &cnf->tamper_offset_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
dgo_write(0x14, 1, &cnf->tamper_pull_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
dgo_write(0x24, 1, &cnf->tamper_ana_test_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
dgo_write(0x34, 1, &cnf->tamper_sensor_trim_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
dgo_write(0x54, 1, &cnf->tamper_core_volt_mon_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
/* Last as it could lock the writes */
dgo_write(0x44, 1, &cnf->tamper_misc_ctl);
if (scierr != SC_ERR_NONE)
goto exit;
exit:
return (scierr == SC_ERR_NONE) ? 0 : -EIO;
}
static int pad_write(u32 _pad, u32 _value)
{
int scierr = sc_pad_set(-1, _pad, _value);
if (scierr != SC_ERR_NONE) {
printf("Failed to set pad configuration\n");
debug("Failed to set conf pad 0x%x : 0x%.8x", _pad, _value);
}
return scierr;
}
static int apply_tamper_pin_list_config(struct tamper_pin_cfg *confs, u32 size)
{
int scierr = 0;
u32 idx;
debug("%s\n", __func__);
for (idx = 0; idx < size; idx++) {
debug("\t idx %d: pad %d: 0x%.8x\n", idx, confs[idx].pad,
confs[idx].mux_conf);
pad_write(confs[idx].pad, 3 << 30 | confs[idx].mux_conf);
if (scierr != SC_ERR_NONE)
goto exit;
}
exit:
return (scierr == SC_ERR_NONE) ? 0 : -EIO;
}
int examples(void)
{
u32 size;
struct snvs_security_sc_conf *snvs_conf;
struct snvs_dgo_conf *snvs_dgo_conf;
struct tamper_pin_cfg *tamper_pin_conf;
/* Caller */
snvs_conf = get_snvs_config();
snvs_dgo_conf = get_snvs_dgo_config();
tamper_pin_conf = get_tamper_pin_cfg_list(&size);
/* Default */
snvs_conf = &snvs_default_config;
snvs_dgo_conf = &snvs_dgo_default_config;
tamper_pin_conf = tamper_pin_list_default_config;
/* Passive tamper expecting VCC on the line */
snvs_conf = &snvs_passive_vcc_config;
snvs_dgo_conf = &snvs_dgo_passive_vcc_config;
tamper_pin_conf = tamper_pin_list_passive_vcc_config;
/* Passive tamper expecting GND on the line */
snvs_conf = &snvs_passive_gnd_config;
snvs_dgo_conf = &snvs_dgo_passive_gnd_config;
tamper_pin_conf = tamper_pin_list_passive_gnd_config;
/* Active tamper */
snvs_conf = &snvs_active_config;
snvs_dgo_conf = &snvs_dgo_active_config;
tamper_pin_conf = tamper_pin_list_active_config;
return !snvs_conf + !snvs_dgo_conf + !tamper_pin_conf;
}
#ifdef CONFIG_IMX_SNVS_SEC_SC_AUTO
int snvs_security_sc_init(void)
{
int err = 0;
struct snvs_security_sc_conf *snvs_conf;
struct snvs_dgo_conf *snvs_dgo_conf;
struct tamper_pin_cfg *tamper_pin_conf;
u32 size;
debug("%s\n", __func__);
snvs_conf = get_snvs_config();
snvs_dgo_conf = get_snvs_dgo_config();
tamper_pin_conf = get_tamper_pin_cfg_list(&size);
err = apply_tamper_pin_list_config(tamper_pin_conf, size);
if (err) {
debug("Failed to set pins\n");
goto exit;
}
err = apply_snvs_dgo_config(snvs_dgo_conf);
if (err) {
debug("Failed to set dgo\n");
goto exit;
}
err = apply_snvs_config(snvs_conf);
if (err) {
debug("Failed to set snvs\n");
goto exit;
}
exit:
return err;
}
#endif /* CONFIG_IMX_SNVS_SEC_SC_AUTO */
static char snvs_cfg_help_text[] =
"snvs_cfg\n"
"\thp.lock\n"
"\thp.secvio_ctl\n"
"\tlp.lock\n"
"\tlp.secvio_ctl\n"
"\tlp.tamper_filt_cfg\n"
"\tlp.tamper_det_cfg\n"
"\tlp.tamper_det_cfg2\n"
"\tlp.tamper_filt1_cfg\n"
"\tlp.tamper_filt2_cfg\n"
"\tlp.act_tamper1_cfg\n"
"\tlp.act_tamper2_cfg\n"
"\tlp.act_tamper3_cfg\n"
"\tlp.act_tamper4_cfg\n"
"\tlp.act_tamper5_cfg\n"
"\tlp.act_tamper_ctl\n"
"\tlp.act_tamper_clk_ctl\n"
"\tlp.act_tamper_routing_ctl1\n"
"\tlp.act_tamper_routing_ctl2\n"
"\n"
"ALL values should be in hexadecimal format";
#define NB_REGISTERS 18
static int do_snvs_cfg(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
int err = 0;
u32 idx = 0;
struct snvs_security_sc_conf conf = {0};
if (argc != (NB_REGISTERS + 1))
return CMD_RET_USAGE;
conf.hp.lock = simple_strtoul(argv[++idx], NULL, 16);
conf.hp.secvio_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.lock = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.secvio_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_filt_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_det_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_det_cfg2 = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_filt1_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_filt2_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper1_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper2_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper3_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper4_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper5_cfg = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper_clk_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper_routing_ctl1 = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.act_tamper_routing_ctl2 = simple_strtoul(argv[++idx], NULL, 16);
err = apply_snvs_config(&conf);
return err;
}
U_BOOT_CMD(snvs_cfg,
NB_REGISTERS + 1, 1, do_snvs_cfg,
"Security violation configuration",
snvs_cfg_help_text
);
static char snvs_dgo_cfg_help_text[] =
"snvs_dgo_cfg\n"
"\ttamper_offset_ctl\n"
"\ttamper_pull_ctl\n"
"\ttamper_ana_test_ctl\n"
"\ttamper_sensor_trim_ctl\n"
"\ttamper_misc_ctl\n"
"\ttamper_core_volt_mon_ctl\n"
"\n"
"ALL values should be in hexadecimal format";
static int do_snvs_dgo_cfg(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int err = 0;
u32 idx = 0;
struct snvs_dgo_conf conf = {0};
if (argc != (6 + 1))
return CMD_RET_USAGE;
conf.tamper_offset_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.tamper_pull_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.tamper_ana_test_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.tamper_sensor_trim_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.tamper_misc_ctl = simple_strtoul(argv[++idx], NULL, 16);
conf.tamper_core_volt_mon_ctl = simple_strtoul(argv[++idx], NULL, 16);
err = apply_snvs_dgo_config(&conf);
return err;
}
U_BOOT_CMD(snvs_dgo_cfg,
7, 1, do_snvs_dgo_cfg,
"SNVS DGO configuration",
snvs_dgo_cfg_help_text
);
static char tamper_pin_cfg_help_text[] =
"snvs_dgo_cfg\n"
"\tpad\n"
"\tvalue\n"
"\n"
"ALL values should be in hexadecimal format";
static int do_tamper_pin_cfg(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int err = 0;
u32 idx = 0;
struct tamper_pin_cfg conf = {0};
if (argc != (2 + 1))
return CMD_RET_USAGE;
conf.pad = simple_strtoul(argv[++idx], NULL, 10);
conf.mux_conf = simple_strtoul(argv[++idx], NULL, 16);
err = apply_tamper_pin_list_config(&conf, 1);
return err;
}
U_BOOT_CMD(tamper_pin_cfg,
3, 1, do_tamper_pin_cfg,
"tamper pin configuration",
tamper_pin_cfg_help_text
);
static char snvs_clear_status_help_text[] =
"snvs_clear_status\n"
"\tHPSR\n"
"\tHPSVSR\n"
"\tLPSR\n"
"\tLPTDSR\n"
"\n"
"Write the status registers with the value provided,"
" clearing the status";
static int do_snvs_clear_status(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int scierr = 0;
u32 idx = 0;
struct snvs_security_sc_conf conf = {0};
if (argc != (2 + 1))
return CMD_RET_USAGE;
conf.lp.status = simple_strtoul(argv[++idx], NULL, 16);
conf.lp.tamper_det_status = simple_strtoul(argv[++idx], NULL, 16);
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.status),
&conf.lp.status, NULL, NULL, NULL,
NULL, 1);
if (scierr != SC_ERR_NONE)
goto exit;
scierr = check_write_secvio_config(SC_CONF_OFFSET_OF(lp.tamper_det_status),
&conf.lp.tamper_det_status, NULL,
NULL, NULL, NULL, 1);
if (scierr != SC_ERR_NONE)
goto exit;
exit:
return (scierr == SC_ERR_NONE) ? 0 : 1;
}
U_BOOT_CMD(snvs_clear_status,
3, 1, do_snvs_clear_status,
"snvs clear status",
snvs_clear_status_help_text
);
static char snvs_sec_status_help_text[] =
"snvs_sec_status\n"
"Display information about the security related to tamper and secvio";
static int do_snvs_sec_status(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int scierr;
u32 idx;
u32 data[5];
u32 pads[] = {
SC_P_CSI_D00,
SC_P_CSI_D01,
SC_P_CSI_D02,
SC_P_CSI_D03,
SC_P_CSI_D04,
SC_P_CSI_D05,
SC_P_CSI_D06,
SC_P_CSI_D07,
SC_P_CSI_HSYNC,
SC_P_CSI_VSYNC,
};
u32 fuses[] = {
14,
30,
31,
260,
261,
262,
263,
768,
};
struct snvs_reg {
u32 id;
u32 nb;
} snvs[] = {
/* Locks */
{0x0, 1},
{0x34, 1},
/* Security violation */
{0xc, 1},
{0x10, 1},
{0x18, 1},
{0x40, 1},
/* Temper detectors */
{0x48, 2},
{0x4c, 1},
{0xa4, 1},
/* */
{0x44, 3},
{0xe0, 1},
{0xe4, 1},
{0xe8, 2},
/* Misc */
{0x3c, 1},
{0x5c, 2},
{0x64, 1},
{0xf8, 2},
};
u32 dgo[] = {
0x0,
0x10,
0x20,
0x30,
0x40,
0x50,
};
/* Pins */
printf("Pins:\n");
for (idx = 0; idx < ARRAY_SIZE(pads); idx++) {
u8 pad_id = pads[idx];
scierr = sc_pad_get(-1, pad_id, &data[0]);
if (scierr == 0)
printf("\t- Pin %d: %.8x\n", pad_id, data[0]);
else
printf("Failed to read Pin %d\n", pad_id);
}
/* Fuses */
printf("Fuses:\n");
for (idx = 0; idx < ARRAY_SIZE(fuses); idx++) {
u32 fuse_id = fuses[idx];
scierr = sc_misc_otp_fuse_read(-1, fuse_id, &data[0]);
if (scierr == 0)
printf("\t- Fuse %d: %.8x\n", fuse_id, data[0]);
else
printf("Failed to read Fuse %d\n", fuse_id);
}
/* SNVS */
printf("SNVS:\n");
for (idx = 0; idx < ARRAY_SIZE(snvs); idx++) {
struct snvs_reg *reg = &snvs[idx];
scierr = sc_seco_secvio_config(-1, reg->id, 0, &data[0],
&data[1], &data[2], &data[3],
&data[4], reg->nb);
if (scierr == 0) {
int subidx;
printf("\t- SNVS %.2x(%d):", reg->id, reg->nb);
for (subidx = 0; subidx < reg->nb; subidx++)
printf(" %.8x", data[subidx]);
printf("\n");
} else {
printf("Failed to read SNVS %d\n", reg->id);
}
}
/* DGO */
printf("DGO:\n");
for (idx = 0; idx < ARRAY_SIZE(dgo); idx++) {
u8 dgo_id = dgo[idx];
scierr = sc_seco_secvio_dgo_config(-1, dgo_id, 0, &data[0]);
if (scierr == 0)
printf("\t- DGO %.2x: %.8x\n", dgo_id, data[0]);
else
printf("Failed to read DGO %d\n", dgo_id);
}
return 0;
}
U_BOOT_CMD(snvs_sec_status,
1, 1, do_snvs_sec_status,
"tamper pin configuration",
snvs_sec_status_help_text
);
Reference in a new issue View git blame Copy permalink