35 static uint32_t bsec_shadow_register(uint32_t otp);
40 static uint32_t bsec_read_permanent_lock(uint32_t otp, bool *value);
83 static void enable_non_secure_access(uint32_t otp)  in enable_non_secure_access()  argument
85 	otp_nsec_access[otp / __WORD_BIT] |= BIT(otp % __WORD_BIT);  in enable_non_secure_access()
87 	if (bsec_shadow_register(otp) != BSEC_OK) {  in enable_non_secure_access()
92 static bool non_secure_can_access(uint32_t otp)  in non_secure_can_access()  argument
94 	return (otp_nsec_access[otp / __WORD_BIT] &  in non_secure_can_access()
95 		BIT(otp % __WORD_BIT)) != 0U;  in non_secure_can_access()
104 		uint32_t otp;  in bsec_dt_otp_nsec_access()  local
119 		otp = offset / sizeof(uint32_t);  in bsec_dt_otp_nsec_access()
121 		if (otp < STM32MP1_UPPER_OTP_START) {  in bsec_dt_otp_nsec_access()
131 				otp = STM32MP1_UPPER_OTP_START;  in bsec_dt_otp_nsec_access()
156 		for (i = otp; i < (otp + size); i++) {  in bsec_dt_otp_nsec_access()
185 static uint32_t otp_bank_offset(uint32_t otp)  in otp_bank_offset()  argument
187 	assert(otp <= STM32MP1_OTP_MAX_ID);  in otp_bank_offset()
189 	return ((otp & ~BSEC_OTP_MASK) >> BSEC_OTP_BANK_SHIFT) *  in otp_bank_offset()
193 static uint32_t otp_bit_mask(uint32_t otp)  in otp_bit_mask()  argument
195 	return BIT(otp & BSEC_OTP_MASK);  in otp_bit_mask()
205 static uint32_t bsec_check_error(uint32_t otp, bool check_disturbed)  in bsec_check_error()  argument
207 	uint32_t bit = otp_bit_mask(otp);  in bsec_check_error()
208 	uint32_t bank = otp_bank_offset(otp);  in bsec_check_error()
260 static uint32_t bsec_shadow_register(uint32_t otp)  in bsec_shadow_register()  argument
270 	result = bsec_read_sr_lock(otp, &value);  in bsec_shadow_register()
272 		ERROR("BSEC: %u Sticky-read bit read Error %u\n", otp, result);  in bsec_shadow_register()
278 			otp);  in bsec_shadow_register()
293 	mmio_write_32(BSEC_BASE + BSEC_OTP_CTRL_OFF, otp | BSEC_READ);  in bsec_shadow_register()
299 	result = bsec_check_error(otp, true);  in bsec_shadow_register()
318 uint32_t bsec_read_otp(uint32_t *val, uint32_t otp)  in bsec_read_otp()  argument
324 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_read_otp()
329 			    (otp * sizeof(uint32_t)));  in bsec_read_otp()
340 uint32_t bsec_write_otp(uint32_t val, uint32_t otp)  in bsec_write_otp()  argument
349 	result = bsec_read_sw_lock(otp, &value);  in bsec_write_otp()
351 		ERROR("BSEC: %u Sticky-write bit read Error %u\n", otp, result);  in bsec_write_otp()
357 			otp);  in bsec_write_otp()
364 		      (otp * sizeof(uint32_t)), val);  in bsec_write_otp()
378 uint32_t bsec_program_otp(uint32_t val, uint32_t otp)  in bsec_program_otp()  argument
389 	result = bsec_read_sp_lock(otp, &sp_lock);  in bsec_program_otp()
391 		ERROR("BSEC: %u Sticky-prog bit read Error %u\n", otp, result);  in bsec_program_otp()
395 	result = bsec_read_permanent_lock(otp, &perm_lock);  in bsec_program_otp()
397 		ERROR("BSEC: %u permanent bit read Error %u\n", otp, result);  in bsec_program_otp()
424 	mmio_write_32(BSEC_BASE + BSEC_OTP_CTRL_OFF, otp | BSEC_WRITE);  in bsec_program_otp()
433 		result = bsec_check_error(otp, true);  in bsec_program_otp()
453 uint32_t bsec_permanent_lock_otp(uint32_t otp)  in bsec_permanent_lock_otp()  argument
464 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_permanent_lock_otp()
478 	if (otp < STM32MP1_UPPER_OTP_START) {  in bsec_permanent_lock_otp()
479 		addr = otp >> ADDR_LOWER_OTP_PERLOCK_SHIFT;  in bsec_permanent_lock_otp()
481 		       ((otp & DATA_LOWER_OTP_PERLOCK_MASK) << 1U);  in bsec_permanent_lock_otp()
483 		addr = (otp >> ADDR_UPPER_OTP_PERLOCK_SHIFT) + 2U;  in bsec_permanent_lock_otp()
485 		       (otp & DATA_UPPER_OTP_PERLOCK_MASK);  in bsec_permanent_lock_otp()
502 		result = bsec_check_error(otp, false);  in bsec_permanent_lock_otp()
574 uint32_t bsec_set_sr_lock(uint32_t otp)  in bsec_set_sr_lock()  argument
576 	uint32_t bank = otp_bank_offset(otp);  in bsec_set_sr_lock()
577 	uint32_t otp_mask = otp_bit_mask(otp);  in bsec_set_sr_lock()
583 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_set_sr_lock()
600 uint32_t bsec_read_sr_lock(uint32_t otp, bool *value)  in bsec_read_sr_lock()  argument
602 	uint32_t bank = otp_bank_offset(otp);  in bsec_read_sr_lock()
603 	uint32_t otp_mask = otp_bit_mask(otp);  in bsec_read_sr_lock()
606 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_read_sr_lock()
622 uint32_t bsec_set_sw_lock(uint32_t otp)  in bsec_set_sw_lock()  argument
624 	uint32_t bank = otp_bank_offset(otp);  in bsec_set_sw_lock()
625 	uint32_t otp_mask = otp_bit_mask(otp);  in bsec_set_sw_lock()
631 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_set_sw_lock()
648 uint32_t bsec_read_sw_lock(uint32_t otp, bool *value)  in bsec_read_sw_lock()  argument
650 	uint32_t bank = otp_bank_offset(otp);  in bsec_read_sw_lock()
651 	uint32_t otp_mask = BIT(otp & BSEC_OTP_MASK);  in bsec_read_sw_lock()
654 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_read_sw_lock()
670 uint32_t bsec_set_sp_lock(uint32_t otp)  in bsec_set_sp_lock()  argument
672 	uint32_t bank = otp_bank_offset(otp);  in bsec_set_sp_lock()
673 	uint32_t otp_mask = otp_bit_mask(otp);  in bsec_set_sp_lock()
679 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_set_sp_lock()
696 uint32_t bsec_read_sp_lock(uint32_t otp, bool *value)  in bsec_read_sp_lock()  argument
698 	uint32_t bank = otp_bank_offset(otp);  in bsec_read_sp_lock()
699 	uint32_t otp_mask = BIT(otp & BSEC_OTP_MASK);  in bsec_read_sp_lock()
702 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_read_sp_lock()
719 static uint32_t bsec_read_permanent_lock(uint32_t otp, bool *value)  in bsec_read_permanent_lock()  argument
721 	uint32_t bank = otp_bank_offset(otp);  in bsec_read_permanent_lock()
722 	uint32_t otp_mask = otp_bit_mask(otp);  in bsec_read_permanent_lock()
725 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_read_permanent_lock()
785 uint32_t bsec_shadow_read_otp(uint32_t *val, uint32_t otp)  in bsec_shadow_read_otp()  argument
789 	result = bsec_shadow_register(otp);  in bsec_shadow_read_otp()
791 		ERROR("BSEC: %u Shadowing Error %u\n", otp, result);  in bsec_shadow_read_otp()
795 	result = bsec_read_otp(val, otp);  in bsec_shadow_read_otp()
797 		ERROR("BSEC: %u Read Error %u\n", otp, result);  in bsec_shadow_read_otp()
809 uint32_t bsec_check_nsec_access_rights(uint32_t otp)  in bsec_check_nsec_access_rights()  argument
811 	if (otp > STM32MP1_OTP_MAX_ID) {  in bsec_check_nsec_access_rights()
815 	if (otp >= STM32MP1_UPPER_OTP_START) {  in bsec_check_nsec_access_rights()
816 		if (!non_secure_can_access(otp)) {  in bsec_check_nsec_access_rights()