4  * SPDX-License-Identifier: Apache-2.0
249 		return -1;  in spi_saf_init()
328 		/* Write to volatile status is fast, expect BUSY to be clear */  in spi_saf_init()
395 			return -1;  in spi_saf_init()
427 	limit = pr->start + pr->size - 1U;  in pr_check_range()
430 	if (regs->SAF_PROT_RG[pr->pr_num].START != (pr->start >> 12)) {  in pr_check_range()
431 		return -1;  in pr_check_range()
434 	if (regs->SAF_PROT_RG[pr->pr_num].LIMIT != (limit >> 12)) {  in pr_check_range()
435 		return -1;  in pr_check_range()
443 	if (pr->flags & MCHP_SAF_PR_FLAG_ENABLE) {  in pr_check_enable()
444 		if (regs->SAF_PROT_RG[pr->pr_num].LIMIT > regs->SAF_PROT_RG[pr->pr_num].START) {  in pr_check_enable()
448 		if (regs->SAF_PROT_RG[pr->pr_num].START > regs->SAF_PROT_RG[pr->pr_num].LIMIT) {  in pr_check_enable()
453 	return -2;  in pr_check_enable()
458 	if (pr->flags & MCHP_SAF_PR_FLAG_LOCK) {  in pr_check_lock()
459 		if (regs->SAF_PROT_LOCK & BIT(pr->pr_num)) {  in pr_check_lock()
463 		if (!(regs->SAF_PROT_LOCK & BIT(pr->pr_num))) {  in pr_check_lock()
468 	return -3;  in pr_check_lock()
472  * NOTE: bit[0] of bit map registers is read-only = 1
476 	if (regs->SAF_PROT_RG[pr->pr_num].WEBM != (pr->master_bm_we | BIT(0))) {  in pr_check_master_bm()
477 		return -4;  in pr_check_master_bm()
480 	if (regs->SAF_PROT_RG[pr->pr_num].RDBM != (pr->master_bm_rd | BIT(0))) {  in pr_check_master_bm()
481 		return -4;  in pr_check_master_bm()
500 	pr = spr->pregions;  in espi_saf_test_pr1()
502 	for (size_t n = 0U; n < spr->nregions; n++) {  in espi_saf_test_pr1()
505 			LOG_INF("SAF Protection region %u range fail", pr->pr_num);  in espi_saf_test_pr1()
511 			LOG_INF("SAF Protection region %u enable fail", pr->pr_num);  in espi_saf_test_pr1()
517 			LOG_INF("SAF Protection region %u lock check fail", pr->pr_num);  in espi_saf_test_pr1()
523 			LOG_INF("SAF Protection region %u Master select fail", pr->pr_num);  in espi_saf_test_pr1()
542 		return -EINVAL;  in saf_read()
567 		n -= chunk_len;  in saf_read()
586 		spi_addr &= ~(4096U - 1U);  in saf_erase_block()
590 		spi_addr &= ~((32U * 1024U) - 1U);  in saf_erase_block()
594 		spi_addr &= ~((64U * 1024U) - 1U);  in saf_erase_block()
597 		return -EINVAL;  in saf_erase_block()
604 		LOG_INF("espi_saf_test1: erase fail = %d", rc);  in saf_erase_block()
620 		return -EINVAL;  in saf_page_prog()
641 			LOG_INF("%s: error = %d: erase fail spi_addr = 0x%X", __func__, rc,  in saf_page_prog()
648 		n -= chunk_len;  in saf_page_prog()
665 		spi_addr &= ~(4096U - 1U);  in espi_saf_test1()
674 	while (!erased && (retries-- > 0)) {  in espi_saf_test1()
686 				rc = -1;  in espi_saf_test1()
712 		return -1;  in espi_saf_test1()
751 			LOG_INF("%s: Read back mismatch: FAIL", __func__);  in espi_saf_test1()
891 	LOG_INF("eSPI test - callbacks initialization... ");  in espi_init()
901 	LOG_INF("eSPI test - callbacks registration... ");  in espi_init()
923 			LOG_ERR("Failed to read %x %d", gpio->pin, level);  in wait_for_pin()
924 			return -EIO;  in wait_for_pin()
928 			LOG_DBG("PIN %x = %x", gpio->pin, exp_level);  in wait_for_pin()
933 		loop_cnt--;  in wait_for_pin()
937 		LOG_ERR("Timeout for %x %x", gpio->pin, level);  in wait_for_pin()
938 		return -ETIMEDOUT;  in wait_for_pin()
956 			return -EIO;  in wait_for_vwire()
964 		loop_cnt--;  in wait_for_vwire()
969 		return -ETIMEDOUT;  in wait_for_vwire()
984 		loop_cnt--;  in wait_for_espi_reset()
988 		return -ETIMEDOUT;  in wait_for_espi_reset()
998 	LOG_INF("eSPI test - Handshake with eSPI master...");  in espi_handshake()
1157 		LOG_WRN("Fail to retrieve target boot done");  in send_target_bootdone()
1177 		LOG_ERR("%s: device not ready.", pwrgd_gpio.port->name);  in espi_test()
1178 		return -ENODEV;  in espi_test()
1181 		LOG_ERR("%s: device not ready.", rsm_gpio.port->name);  in espi_test()
1182 		return -ENODEV;  in espi_test()
1186 		LOG_ERR("%s: device not ready.", espi_dev->name);  in espi_test()
1187 		return -ENODEV;  in espi_test()
1192 		LOG_ERR("%s: device not ready.", qspi_dev->name);  in espi_test()
1193 		return -ENODEV;  in espi_test()
1197 		LOG_ERR("%s: device not ready.", espi_saf_dev->name);  in espi_test()
1198 		return -ENODEV;  in espi_test()
1220 		return -1;  in espi_test()
1230 	 * Host de-asserts ESPI_RESET#.  in espi_test()
1234 		LOG_ERR("Unable to configure %d:%s", ret, qspi_dev->name);  in espi_test()
1240 		LOG_ERR("Unable to configure %d:%s", ret, espi_saf_dev->name);  in espi_test()
1304 	/* eSPI flash test can fail and rest of operation can continue */  in espi_test()
1322 	/* System without host-initiated OOB Rx traffic */  in espi_test()
1325 	/* System with host-initiated OOB Rx traffic */  in espi_test()