4  * SPDX-License-Identifier: Apache-2.0
8 #include <zephyr/logging/log.h>
13 #include <zephyr/kernel.h>
16 #include <zephyr/device.h>
17 #include <zephyr/init.h>
21 #include <zephyr/drivers/pcie/pcie.h>
24 static int pcie_ptm_root_setup(const struct device *dev, uint32_t base)  in pcie_ptm_root_setup()  argument
26 	const struct pcie_ptm_root_config *config = dev->config;  in pcie_ptm_root_setup()
30 	cap.raw = pcie_conf_read(config->pcie->bdf, base + PTM_CAP_REG_OFFSET);  in pcie_ptm_root_setup()
32 		LOG_ERR("PTM root not supported on 0x%x", config->pcie->bdf);  in pcie_ptm_root_setup()
33 		return -ENOTSUP;  in pcie_ptm_root_setup()
39 	pcie_conf_write(config->pcie->bdf, base + PTM_CTRL_REG_OFFSET, ctrl.raw);  in pcie_ptm_root_setup()
41 	LOG_DBG("PTM root 0x%x enabled", config->pcie->bdf);  in pcie_ptm_root_setup()
48 	const struct pcie_ptm_root_config *config = dev->config;  in pcie_ptm_root_init()
51 	reg = pcie_get_ext_cap(config->pcie->bdf, PCIE_EXT_CAP_ID_PTM);  in pcie_ptm_root_init()
53 		LOG_ERR("PTM capability not exposed on 0x%x", config->pcie->bdf);  in pcie_ptm_root_init()
54 		return -ENODEV;  in pcie_ptm_root_init()
74 	uint32_t base;  in DT_INST_FOREACH_STATUS_OKAY()  local
78 	base = pcie_get_ext_cap(bdf, PCIE_EXT_CAP_ID_PTM);  in DT_INST_FOREACH_STATUS_OKAY()
79 	if (base == 0) {  in DT_INST_FOREACH_STATUS_OKAY()
84 	cap.raw = pcie_conf_read(bdf, base + PTM_CAP_REG_OFFSET);  in DT_INST_FOREACH_STATUS_OKAY()
92 	pcie_conf_write(bdf, base + PTM_CTRL_REG_OFFSET, ctrl.raw);  in DT_INST_FOREACH_STATUS_OKAY()