3 * By Dustin McIntire (dustin@sensoria.com) (c)2001
5 * Setup and IRQ handling code for the HD64465 companion chip.
6 * by Greg Banks <gbanks@pocketpenguins.com>
7 * Copyright (c) 2000 PocketPenguins Inc
9 * Derived from setup_hd64465.c which bore the message:
10 * Greg Banks <gbanks@pocketpenguins.com>
11 * Copyright (c) 2000 PocketPenguins Inc and
12 * Copyright (C) 2000 YAEGASHI Takeshi
13 * and setup_cqreek.c which bore message:
14 * Copyright (C) 2000 Niibe Yutaka
16 * May be copied or modified under the terms of the GNU General Public
17 * License. See linux/COPYING for more information.
19 * Setup functions for a Hitachi Big Sur Evaluation Board.
23 #include <linux/sched.h>
24 #include <linux/module.h>
25 #include <linux/kernel.h>
26 #include <linux/param.h>
27 #include <linux/ioport.h>
28 #include <linux/interrupt.h>
29 #include <linux/init.h>
30 #include <linux/irq.h>
31 #include <linux/bitops.h>
35 #include <asm/machvec.h>
36 #include <asm/bigsur/io.h>
37 #include <asm/hd64465/hd64465.h>
38 #include <asm/bigsur/bigsur.h>
40 /*===========================================================*/
41 // Big Sur Init Routines
42 /*===========================================================*/
44 const char *get_system_type(void)
52 extern void heartbeat_bigsur(void);
53 extern void init_bigsur_IRQ(void);
55 struct sh_machine_vector mv_bigsur __initmv = {
56 .mv_nr_irqs = NR_IRQS, // Defined in <asm/irq.h>
58 .mv_isa_port2addr = bigsur_isa_port2addr,
59 .mv_irq_demux = bigsur_irq_demux,
61 .mv_init_irq = init_bigsur_IRQ,
62 #ifdef CONFIG_HEARTBEAT
63 .mv_heartbeat = heartbeat_bigsur,
68 int __init platform_setup(void)
70 /* Mask all 2nd level IRQ's */
76 /* Mask 1st level interrupts */
77 outb(-1,BIGSUR_IRLMR0);
78 outb(-1,BIGSUR_IRLMR1);
80 #if defined (CONFIG_HD64465) && defined (CONFIG_SERIAL)
81 /* remap IO ports for first ISA serial port to HD64465 UART */
82 bigsur_port_map(0x3f8, 8, CONFIG_HD64465_IOBASE + 0x8000, 1);
83 #endif /* CONFIG_HD64465 && CONFIG_SERIAL */
84 /* TODO: setup IDE registers */
85 bigsur_port_map(BIGSUR_IDECTL_IOPORT, 2, BIGSUR_ICTL, 8);
86 /* Setup the Ethernet port to BIGSUR_ETHER_IOPORT */
87 bigsur_port_map(BIGSUR_ETHER_IOPORT, 16, BIGSUR_ETHR+BIGSUR_ETHER_IOPORT, 0);
89 outw(1, BIGSUR_ETHR+0xe);
90 /* set the IO port to BIGSUR_ETHER_IOPORT */
91 outw(BIGSUR_ETHER_IOPORT<<3, BIGSUR_ETHR+0x2);