/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/device.h> #include <device/pci_def.h> #include <device/pci.h> #include <console/console.h> #include <console/uart.h> #include <device/mmio.h> #include <device/pci_ops.h> static void oxford_oxpcie_enable(struct device *dev) { printk(BIOS_DEBUG, "Initializing Oxford OXPCIe952\n"); struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0); if (!res) { printk(BIOS_WARNING, "OXPCIe952: No UART resource found.\n"); return; } void *bar0 = res2mmio(res, 0, 0); printk(BIOS_DEBUG, "OXPCIe952: Class=%x Revision ID=%x\n", (read32(bar0) >> 8), (read32(bar0) & 0xff)); printk(BIOS_DEBUG, "OXPCIe952: %d UARTs detected.\n", (read32(bar0 + 4) & 3)); printk(BIOS_DEBUG, "OXPCIe952: UART BAR: 0x%x\n", (u32)res->base); } static void oxford_oxpcie_set_resources(struct device *dev) { pci_dev_set_resources(dev); /* Re-initialize OXPCIe base address after set_resources */ u32 mmio_base = pci_read_config32(dev, PCI_BASE_ADDRESS_0); oxford_remap(mmio_base & ~0xf); } static struct device_operations oxford_oxpcie_ops = { .read_resources = pci_dev_read_resources, .set_resources = oxford_oxpcie_set_resources, .enable_resources = pci_dev_enable_resources, .init = oxford_oxpcie_enable, }; static const struct pci_driver oxford_oxpcie_driver __pci_driver = { .ops = &oxford_oxpcie_ops, .vendor = 0x1415, .device = 0xc158, }; static const struct pci_driver oxford_oxpcie_driver_2 __pci_driver = { .ops = &oxford_oxpcie_ops, .vendor = 0x1415, .device = 0xc11b, };