/* * Serial Device Initialisation for Lasi/Asp/Wax/Dino * * (c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include <linux/errno.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/module.h> #include <linux/serial_core.h> #include <linux/signal.h> #include <linux/types.h> #include <asm/hardware.h> #include <asm/parisc-device.h> #include <asm/io.h> #include "8250.h" static int __init serial_init_chip(struct parisc_device *dev) { struct uart_port port; unsigned long address; int err; if (!dev->irq) { /* We find some unattached serial ports by walking native * busses. These should be silently ignored. Otherwise, * what we have here is a missing parent device, so tell * the user what they're missing. */ if (parisc_parent(dev)->id.hw_type != HPHW_IOA) printk(KERN_INFO "Serial: device 0x%llx not configured.\n" "Enable support for Wax, Lasi, Asp or Dino.\n", (unsigned long long)dev->hpa.start); return -ENODEV; } address = dev->hpa.start; if (dev->id.sversion != 0x8d) address += 0x800; memset(&port, 0, sizeof(port)); port.iotype = UPIO_MEM; /* 7.272727MHz on Lasi. Assumed the same for Dino, Wax and Timi. */ port.uartclk = 7272727; port.mapbase = address; port.membase = ioremap_nocache(address, 16); port.irq = dev->irq; port.flags = UPF_BOOT_AUTOCONF; port.dev = &dev->dev; err = serial8250_register_port(&port); if (err < 0) { printk(KERN_WARNING "serial8250_register_port returned error %d\n", err); iounmap(port.membase); return err; } return 0; } static struct parisc_device_id serial_tbl[] = { { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 }, { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c }, { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d }, { 0 } }; /* Hack. Some machines have SERIAL_0 attached to Lasi and SERIAL_1 * attached to Dino. Unfortunately, Dino appears before Lasi in the device * tree. To ensure that ttyS0 == SERIAL_0, we register two drivers; one * which only knows about Lasi and then a second which will find all the * other serial ports. HPUX ignores this problem. */ static struct parisc_device_id lasi_tbl[] = { { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */ { 0 } }; MODULE_DEVICE_TABLE(parisc, serial_tbl); static struct parisc_driver lasi_driver = { .name = "serial_1", .id_table = lasi_tbl, .probe = serial_init_chip, }; static struct parisc_driver serial_driver = { .name = "serial", .id_table = serial_tbl, .probe = serial_init_chip, }; static int __init probe_serial_gsc(void) { register_parisc_driver(&lasi_driver); register_parisc_driver(&serial_driver); return 0; } module_init(probe_serial_gsc); MODULE_LICENSE("GPL");