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fsl_sec_mon: Update driver for Security Monitor

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Update the API's for transition of Security Monitor states. Instead
of providing both initial and final states for transition, just
provide final state for transition as Security Monitor driver will
take care of it internally.

Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
[York Sun: Reformatted commit message slightly]
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Sumit Garg
2016-08-31 08:54:15 -04:00
committed by York Sun
parent 4de6ce1594
commit b259732d36
3 changed files with 148 additions and 150 deletions
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48
board/freescale/common/fsl_validate.c
View File

@@ -301,27 +301,15 @@ static inline u32 get_key_len(struct fsl_secboot_img_priv *img)
*/
static void fsl_secboot_header_verification_failure(void)
{
struct ccsr_sec_mon_regs *sec_mon_regs = (void *)
(CONFIG_SYS_SEC_MON_ADDR);
struct ccsr_sfp_regs *sfp_regs = (void *)(CONFIG_SYS_SFP_ADDR);
u32 sts = sec_mon_in32(&sec_mon_regs->hp_stat);
/* 29th bit of OSPR is ITS */
u32 its = sfp_in32(&sfp_regs->ospr) >> 2;
/*
* Read the SEC_MON status register
* Read SSM_ST field
*/
sts = sec_mon_in32(&sec_mon_regs->hp_stat);
if ((sts & HPSR_SSM_ST_MASK) == HPSR_SSM_ST_TRUST) {
if (its == 1)
change_sec_mon_state(HPSR_SSM_ST_TRUST,
HPSR_SSM_ST_SOFT_FAIL);
else
change_sec_mon_state(HPSR_SSM_ST_TRUST,
HPSR_SSM_ST_NON_SECURE);
}
if (its == 1)
set_sec_mon_state(HPSR_SSM_ST_SOFT_FAIL);
else
set_sec_mon_state(HPSR_SSM_ST_NON_SECURE);
printf("Generating reset request\n");
do_reset(NULL, 0, 0, NULL);
@@ -338,32 +326,20 @@ static void fsl_secboot_header_verification_failure(void)
*/
static void fsl_secboot_image_verification_failure(void)
{
struct ccsr_sec_mon_regs *sec_mon_regs = (void *)
(CONFIG_SYS_SEC_MON_ADDR);
struct ccsr_sfp_regs *sfp_regs = (void *)(CONFIG_SYS_SFP_ADDR);
u32 sts = sec_mon_in32(&sec_mon_regs->hp_stat);
u32 its = (sfp_in32(&sfp_regs->ospr) & ITS_MASK) >> ITS_BIT;
/*
* Read the SEC_MON status register
* Read SSM_ST field
*/
sts = sec_mon_in32(&sec_mon_regs->hp_stat);
if ((sts & HPSR_SSM_ST_MASK) == HPSR_SSM_ST_TRUST) {
if (its == 1) {
change_sec_mon_state(HPSR_SSM_ST_TRUST,
HPSR_SSM_ST_SOFT_FAIL);
if (its == 1) {
set_sec_mon_state(HPSR_SSM_ST_SOFT_FAIL);
printf("Generating reset request\n");
do_reset(NULL, 0, 0, NULL);
/* If reset doesn't coocur, halt execution */
do_esbc_halt(NULL, 0, 0, NULL);
printf("Generating reset request\n");
do_reset(NULL, 0, 0, NULL);
/* If reset doesn't coocur, halt execution */
do_esbc_halt(NULL, 0, 0, NULL);
} else {
change_sec_mon_state(HPSR_SSM_ST_TRUST,
HPSR_SSM_ST_NON_SECURE);
}
} else {
set_sec_mon_state(HPSR_SSM_ST_NON_SECURE);
}
}