coreboot-kgpe-d16/src/soc/intel/quark/uart.c

/* SPDX-License-Identifier: GPL-2.0-only */

#include <console/uart.h>
#include <device/pci.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <soc/pci_devs.h>

static void uart_read_resources(struct device *dev)
{
	struct resource *res;

	/* Read the resources */
	pci_dev_read_resources(dev);

	/* Set the debug port configuration */
	res = find_resource(dev, PCI_BASE_ADDRESS_0);
	res->base = uart_platform_base(CONFIG_UART_FOR_CONSOLE);
	res->size = 0x100;
	res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}

static struct device_operations device_ops = {
	.read_resources		= uart_read_resources,
	.set_resources		= pci_dev_set_resources,
	.enable_resources	= pci_dev_enable_resources,
};

static const struct pci_driver uart_driver __pci_driver = {
	.ops	= &device_ops,
	.vendor	= PCI_VENDOR_ID_INTEL,
	.device	= HSUART_DEVID,
};