97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
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/*
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*
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* By Dustin McIntire (dustin@sensoria.com) (c)2001
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*
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* Setup and IRQ handling code for the HD64465 companion chip.
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* by Greg Banks <gbanks@pocketpenguins.com>
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* Copyright (c) 2000 PocketPenguins Inc
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*
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* Derived from setup_hd64465.c which bore the message:
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* Greg Banks <gbanks@pocketpenguins.com>
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* Copyright (c) 2000 PocketPenguins Inc and
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* Copyright (C) 2000 YAEGASHI Takeshi
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* and setup_cqreek.c which bore message:
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* Copyright (C) 2000 Niibe Yutaka
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* Setup functions for a Hitachi Big Sur Evaluation Board.
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*
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*/
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#include <linux/config.h>
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#include <linux/sched.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/ioport.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/bitops.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/machvec.h>
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#include <asm/bigsur/io.h>
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#include <asm/hd64465/hd64465.h>
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#include <asm/bigsur/bigsur.h>
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/*===========================================================*/
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// Big Sur Init Routines
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/*===========================================================*/
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const char *get_system_type(void)
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{
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return "Big Sur";
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}
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/*
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* The Machine Vector
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*/
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extern void heartbeat_bigsur(void);
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extern void init_bigsur_IRQ(void);
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struct sh_machine_vector mv_bigsur __initmv = {
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.mv_nr_irqs = NR_IRQS, // Defined in <asm/irq.h>
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.mv_isa_port2addr = bigsur_isa_port2addr,
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.mv_irq_demux = bigsur_irq_demux,
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.mv_init_irq = init_bigsur_IRQ,
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#ifdef CONFIG_HEARTBEAT
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.mv_heartbeat = heartbeat_bigsur,
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#endif
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};
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ALIAS_MV(bigsur)
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int __init platform_setup(void)
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{
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/* Mask all 2nd level IRQ's */
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outb(-1,BIGSUR_IMR0);
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outb(-1,BIGSUR_IMR1);
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outb(-1,BIGSUR_IMR2);
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outb(-1,BIGSUR_IMR3);
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/* Mask 1st level interrupts */
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outb(-1,BIGSUR_IRLMR0);
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outb(-1,BIGSUR_IRLMR1);
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#if defined (CONFIG_HD64465) && defined (CONFIG_SERIAL)
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/* remap IO ports for first ISA serial port to HD64465 UART */
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bigsur_port_map(0x3f8, 8, CONFIG_HD64465_IOBASE + 0x8000, 1);
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#endif /* CONFIG_HD64465 && CONFIG_SERIAL */
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/* TODO: setup IDE registers */
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bigsur_port_map(BIGSUR_IDECTL_IOPORT, 2, BIGSUR_ICTL, 8);
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/* Setup the Ethernet port to BIGSUR_ETHER_IOPORT */
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bigsur_port_map(BIGSUR_ETHER_IOPORT, 16, BIGSUR_ETHR+BIGSUR_ETHER_IOPORT, 0);
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/* set page to 1 */
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outw(1, BIGSUR_ETHR+0xe);
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/* set the IO port to BIGSUR_ETHER_IOPORT */
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outw(BIGSUR_ETHER_IOPORT<<3, BIGSUR_ETHR+0x2);
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return 0;
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}
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