79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
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/*
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* linux/arch/sh/boards/ec3104/setup.c
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* EC3104 companion chip support
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*
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* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
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*
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*/
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/* EC3104 note:
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* This code was written without any documentation about the EC3104 chip. While
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* I hope I got most of the basic functionality right, the register names I use
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* are most likely completely different from those in the chip documentation.
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*
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* If you have any further information about the EC3104, please tell me
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* (prumpf@tux.org).
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*/
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/param.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/types.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/mach/ec3104.h>
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const char *get_system_type(void)
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{
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return "EC3104";
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}
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/*
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* The Machine Vector
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*/
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struct sh_machine_vector mv_ec3104 __initmv = {
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.mv_nr_irqs = 96,
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.mv_inb = ec3104_inb,
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.mv_inw = ec3104_inw,
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.mv_inl = ec3104_inl,
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.mv_outb = ec3104_outb,
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.mv_outw = ec3104_outw,
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.mv_outl = ec3104_outl,
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.mv_irq_demux = ec3104_irq_demux,
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};
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ALIAS_MV(ec3104)
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int __init platform_setup(void)
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{
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char str[8];
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int i;
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if (0)
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return 0;
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for (i=0; i<8; i++)
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str[i] = ctrl_readb(EC3104_BASE + i);
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for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++)
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irq_desc[i].handler = &ec3104_int;
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printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n",
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str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE);
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/* mask all interrupts. this should have been done by the boot
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* loader for us but we want to be sure ... */
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ctrl_writel(0xffffffff, EC3104_IMR);
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return 0;
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}
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