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arm: stm32mp: add defines for BSEC_LOCK status in stm32key command

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Add defines for value used in stm32key for BSEC permanent lock status
and error.

This patch is a preliminary step to support more lock status in BSEC
driver.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-09-15 18:11:38 +02:00 committed by Patrice Chotard
parent 89f3745152
commit c6327ba40f
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/mach-stm32mp/cmd_stm32key.c
View File

@ -19,6 +19,9 @@
#define STM32_OTP_HASH_KEY_START 24
#define STM32_OTP_HASH_KEY_SIZE 8
#define BSEC_LOCK_ERROR (-1)
#define BSEC_LOCK_PERM BIT(0)
static int get_misc_dev(struct udevice **dev)
{
int ret;
@ -60,14 +63,14 @@ static int read_hash_otp(bool print, bool *locked, bool *closed)
val = ~0x0;
ret = misc_read(dev, STM32_BSEC_LOCK(word), &lock, 4);
if (ret != 4)
lock = -1;
lock = BSEC_LOCK_ERROR;
if (print)
printf("OTP HASH %i: %x lock : %d\n", word, val, lock);
printf("OTP HASH %i: %x lock : %x\n", word, val, lock);
if (val == ~0x0)
nb_invalid++;
else if (val == 0x0)
nb_zero++;
if (lock == 1)
if (lock & BSEC_LOCK_PERM)
nb_lock++;
}
@ -77,13 +80,13 @@ static int read_hash_otp(bool print, bool *locked, bool *closed)
val = 0x0;
ret = misc_read(dev, STM32_BSEC_LOCK(word), &lock, 4);
if (ret != 4)
lock = -1;
lock = BSEC_LOCK_ERROR;
status = (val & STM32_OTP_CLOSE_MASK) == STM32_OTP_CLOSE_MASK;
if (closed)
*closed = status;
if (print)
printf("OTP %d: closed status: %d lock : %d\n", word, status, lock);
printf("OTP %d: closed status: %d lock : %x\n", word, status, lock);
status = (nb_lock == STM32_OTP_HASH_KEY_SIZE);
if (locked)
@ -128,7 +131,7 @@ static int fuse_hash_value(u32 addr, bool print)
return ret;
}
/* on success, lock the OTP for HASH key */
val = 1;
val = BSEC_LOCK_PERM;
ret = misc_write(dev, STM32_BSEC_LOCK(word), &val, 4);
if (ret != 4) {
log_err("Lock OTP %i failed\n", word);