15 #include <asm/pci-bridge.h>
16 #include <asm/ppc-pci.h>
40 	{.type = "tsi-bridge",},
43 	{.compatible = "simple-bus",},
44 	{.compatible = "wrs,epld-localbus",},
49 static int legacy_serial_console = -1;
54 	offset = offset << p->regshift;  in tsi_serial_in()
56 		tmp = readl(p->membase + (UART_IIR & ~3));  in tsi_serial_in()
59 		return readb(p->membase + offset);  in tsi_serial_in()
64 	offset = offset << p->regshift;  in tsi_serial_out()
66 		writeb(value, p->membase + offset);  in tsi_serial_out()
79 	clk = of_get_property(np, "clock-frequency", NULL);  in add_legacy_port()
84 	spd = of_get_property(np, "current-speed", NULL);  in add_legacy_port()
97 		return -1;  in add_legacy_port()
105 			printk(KERN_DEBUG "Moved legacy port %d -> %d\n",  in add_legacy_port()
141 	       index, np->full_name);  in add_legacy_port()
161 	 * encoded in the device-tree.  in add_legacy_soc_port()
163 	if (of_get_property(np, "clock-frequency", NULL) == NULL)  in add_legacy_soc_port()
164 		return -1;  in add_legacy_soc_port()
166 	/* if reg-shift or offset, don't try to use it */  in add_legacy_soc_port()
167 	if ((of_get_property(np, "reg-shift", NULL) != NULL) ||  in add_legacy_soc_port()
168 		(of_get_property(np, "reg-offset", NULL) != NULL))  in add_legacy_soc_port()
169 		return -1;  in add_legacy_soc_port()
172 	if (of_get_property(np, "used-by-rtas", NULL) != NULL)  in add_legacy_soc_port()
173 		return -1;  in add_legacy_soc_port()
178 		return -1;  in add_legacy_soc_port()
182 		return -1;  in add_legacy_soc_port()
187 	if (tsi && !strcmp(tsi->type, "tsi-bridge"))  in add_legacy_soc_port()
188 		return add_legacy_port(np, -1, UPIO_TSI, addr, addr, NO_IRQ, flags, 0);  in add_legacy_soc_port()
190 		return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);  in add_legacy_soc_port()
198 	int index = -1;  in add_legacy_isa_port()
201 	DBG(" -> add_legacy_isa_port(%s)\n", np->full_name);  in add_legacy_isa_port()
206 		return -1;  in add_legacy_isa_port()
210 		return -1;  in add_legacy_isa_port()
212 	/* Now look for an "ibm,aix-loc" property that gives us ordering  in add_legacy_isa_port()
215 	typep = of_get_property(np, "ibm,aix-loc", NULL);  in add_legacy_isa_port()
219 		index = simple_strtol(typep+1, NULL, 0) - 1;  in add_legacy_isa_port()
242 	int iotype, index = -1, lindex = 0;  in add_legacy_pci_port()
244 	DBG(" -> add_legacy_pci_port(%s)\n", np->full_name);  in add_legacy_pci_port()
247 	 * encoded in the device-tree (that is have an fcode). Anything  in add_legacy_pci_port()
253 	if (of_get_property(np, "clock-frequency", NULL) == NULL)  in add_legacy_pci_port()
254 		return -1;  in add_legacy_pci_port()
259 		return -1;  in add_legacy_pci_port()
265 		return -1;  in add_legacy_pci_port()
314 	if (info->taddr == 0)  in setup_legacy_serial_console()
316 	addr = ioremap(info->taddr, 0x1000);  in setup_legacy_serial_console()
319 	if (info->speed == 0)  in setup_legacy_serial_console()
320 		info->speed = udbg_probe_uart_speed(addr, info->clock);  in setup_legacy_serial_console()
321 	DBG("default console speed = %d\n", info->speed);  in setup_legacy_serial_console()
322 	udbg_init_uart(addr, info->speed, info->clock);  in setup_legacy_serial_console()
328  * will try to build a list of all the available 8250-compatible serial ports
329  * in the machine using the Open Firmware device-tree. It currently only deals
332  * the machine non-PCI ports and to properly pick the default console port
336 	struct device_node *np, *stdout = NULL;  in find_legacy_serial_ports()  local
337 	const char *path;  in find_legacy_serial_ports()  local
340 	DBG(" -> find_legacy_serial_port()\n");  in find_legacy_serial_ports()
343 	path = of_get_property(of_chosen, "linux,stdout-path", NULL);  in find_legacy_serial_ports()
344 	if (path != NULL) {  in find_legacy_serial_ports()
345 		stdout = of_find_node_by_path(path);  in find_legacy_serial_ports()
346 		if (stdout)  in find_legacy_serial_ports()
347 			DBG("stdout is %s\n", stdout->full_name);  in find_legacy_serial_ports()
349 		DBG(" no linux,stdout-path !\n");  in find_legacy_serial_ports()
360 				if (index >= 0 && np == stdout)  in find_legacy_serial_ports()
370 		if (isa && !strcmp(isa->name, "isa")) {  in find_legacy_serial_ports()
372 			if (index >= 0 && np == stdout)  in find_legacy_serial_ports()
382 		if (parent && !strcmp(parent->name, "isa")) {  in find_legacy_serial_ports()
386 		if (strcmp(np->name, "serial") && strcmp(np->type, "serial")) {  in find_legacy_serial_ports()
404 		if (index >= 0 && np == stdout)  in find_legacy_serial_ports()
413 	DBG(" <- find_legacy_serial_port()\n");  in find_legacy_serial_ports()
443 	port->irq = virq;  in fixup_port_irq()
447 		port->handle_irq = fsl8250_handle_irq;  in fixup_port_irq()
462 		unsigned long offset = (unsigned long)hose->io_base_virt -  in fixup_port_pio()
468 		DBG("port %d, IO %lx -> %lx\n",  in fixup_port_pio()
469 		    index, port->iobase, port->iobase + offset);  in fixup_port_pio()
470 		port->iobase += offset;  in fixup_port_pio()
481 	port->membase = ioremap(port->mapbase, 0x100);  in fixup_port_mmio()
502 		return -ENODEV;  in serial_dev_init()
514 		if (port->irq == NO_IRQ)  in serial_dev_init()
516 		if (port->iotype == UPIO_PORT)  in serial_dev_init()
518 		if ((port->iotype == UPIO_MEM) || (port->iotype == UPIO_TSI))  in serial_dev_init()
544 	DBG(" -> check_legacy_serial_console()\n");  in check_legacy_serial_console()
549 		return -EBUSY;  in check_legacy_serial_console()
554 		return -ENODEV;  in check_legacy_serial_console()
559 		return -ENODEV;  in check_legacy_serial_console()
562 	/* ... So use the full path instead */  in check_legacy_serial_console()
563 	name = of_get_property(of_chosen, "linux,stdout-path", NULL);  in check_legacy_serial_console()
565 		DBG(" no linux,stdout-path !\n");  in check_legacy_serial_console()
566 		return -ENODEV;  in check_legacy_serial_console()
570 		DBG(" can't find stdout package %s !\n", name);  in check_legacy_serial_console()
571 		return -ENODEV;  in check_legacy_serial_console()
573 	DBG("stdout is %s\n", prom_stdout->full_name);  in check_legacy_serial_console()
577 		DBG(" stdout package has no name !\n");  in check_legacy_serial_console()
580 	spd = of_get_property(prom_stdout, "current-speed", NULL);  in check_legacy_serial_console()
612 	return -ENODEV;  in check_legacy_serial_console()