示例#1
0
static void vt8237_usb_i_read_resources(struct device *dev)
{
#if CONFIG_EPIA_VT8237R_INIT
	struct resource *res;
	u8 function = (u8) dev->path.pci.devfn & 0x7;

	printk(BIOS_SPEW, "VT8237R Fixing USB 1.1 fn %d I/O resource = 0x%04X\n", function, usb_io_addr[function]);

	/* Fix the I/O Resources of the USB1.1 Interfaces */
	/* Auto PCI probe seems to size the resources     */
	/* Incorrectly                                    */
	res = new_resource(dev, PCI_BASE_ADDRESS_4);
	res->base = usb_io_addr[function];
	res->size = 256;
	res->limit = 0xffffUL;
	res->align = 10;
	res->gran = 8;
	res->flags = IORESOURCE_IO | IORESOURCE_FIXED |
		     		IORESOURCE_ASSIGNED;
#else
	pci_dev_read_resources(dev);
#endif
	return;
}
示例#2
0
static void cpu_pci_domain_read_resources(struct device *dev)
{
	u16 nbid   = pci_read_config16(dev_find_slot(0, 0), PCI_DEVICE_ID);
	int i440fx = (nbid == 0x1237);
	int q35    = (nbid == 0x29c0);
	struct resource *res;
	unsigned long tomk = 0, high;
	int idx = 10;
	int size;

	pci_domain_read_resources(dev);

	size = fw_cfg_check_file("etc/e820");
	if (size > 0) {
		/* supported by qemu 1.7+ */
		FwCfgE820Entry *list = malloc(size);
		int i;
		fw_cfg_load_file("etc/e820", list);
		for (i = 0; i < size/sizeof(*list); i++) {
			switch (list[i].type) {
			case 1: /* ram */
				printk(BIOS_DEBUG, "QEMU: e820/ram: 0x%08llx +0x%08llx\n",
				       list[i].address, list[i].length);
				if (list[i].address == 0) {
					tomk = list[i].length / 1024;
					ram_resource(dev, idx++, 0, 640);
					ram_resource(dev, idx++, 768, tomk - 768);
				} else {
					ram_resource(dev, idx++,
						     list[i].address / 1024,
						     list[i].length / 1024);
				}
				break;
			case 2: /* reserved */
				printk(BIOS_DEBUG, "QEMU: e820/res: 0x%08llx +0x%08llx\n",
				       list[i].address, list[i].length);
				res = new_resource(dev, idx++);
				res->base = list[i].address;
				res->size = list[i].length;
				res->limit = 0xffffffff;
				res->flags = IORESOURCE_MEM | IORESOURCE_FIXED |
					IORESOURCE_STORED | IORESOURCE_ASSIGNED;
				break;
			default:
				/* skip unknown */
				break;
			}
		}
		free(list);
	}

	if (!tomk) {
		/* qemu older than 1.7, or reading etc/e820 failed. Fallback to cmos. */
		tomk = qemu_get_memory_size();
		high = qemu_get_high_memory_size();
		printk(BIOS_DEBUG, "QEMU: cmos: %lu MiB RAM below 4G.\n", tomk / 1024);
		printk(BIOS_DEBUG, "QEMU: cmos: %lu MiB RAM above 4G.\n", high / 1024);

		/* Report the memory regions. */
		ram_resource(dev, idx++, 0, 640);
		ram_resource(dev, idx++, 768, tomk - 768);
		if (high)
			ram_resource(dev, idx++, 4 * 1024 * 1024, high);
	}

	/* Reserve I/O ports used by QEMU */
	qemu_reserve_ports(dev, idx++, 0x0510, 0x02, "firmware-config");
	qemu_reserve_ports(dev, idx++, 0x5658, 0x01, "vmware-port");
	if (i440fx) {
		qemu_reserve_ports(dev, idx++, 0xae00, 0x10, "pci-hotplug");
		qemu_reserve_ports(dev, idx++, 0xaf00, 0x20, "cpu-hotplug");
		qemu_reserve_ports(dev, idx++, 0xafe0, 0x04, "piix4-gpe0");
	}
	if (inb(CONFIG_CONSOLE_QEMU_DEBUGCON_PORT) == 0xe9) {
		qemu_reserve_ports(dev, idx++, CONFIG_CONSOLE_QEMU_DEBUGCON_PORT, 1,
				   "debugcon");
	}

	if (q35 && ((tomk * 1024) < 0xb0000000)) {
		/*
		 * Reserve the region between top-of-ram and the
		 * mmconf xbar (ar 0xb0000000), so coreboot doesn't
		 * place pci bars there.  The region isn't declared as
		 * pci io window in the acpi tables (\_SB.PCI0._CRS).
		 */
		res = new_resource(dev, idx++);
		res->base = tomk * 1024;
		res->size = 0xb0000000 - tomk * 1024;
		res->limit = 0xffffffff;
		res->flags = IORESOURCE_MEM | IORESOURCE_FIXED |
			IORESOURCE_STORED | IORESOURCE_ASSIGNED;
	}

	if (i440fx) {
		/* Reserve space for the IOAPIC.  This should be in
		 * the southbridge, but I couldn't tell which device
		 * to put it in. */
		res = new_resource(dev, 2);
		res->base = IO_APIC_ADDR;
		res->size = 0x100000UL;
		res->limit = 0xffffffffUL;
		res->flags = IORESOURCE_MEM | IORESOURCE_FIXED |
			IORESOURCE_STORED | IORESOURCE_ASSIGNED;
	}

	/* Reserve space for the LAPIC.  There's one in every processor, but
	 * the space only needs to be reserved once, so we do it here. */
	res = new_resource(dev, 3);
	res->base = LOCAL_APIC_ADDR;
	res->size = 0x10000UL;
	res->limit = 0xffffffffUL;
	res->flags = IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
		     IORESOURCE_ASSIGNED;
}