72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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/*
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* linux/arch/sh/kernel/setup_sh2000.c
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*
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* Copyright (C) 2001 SUGIOKA Tochinobu
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*
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* SH-2000 Support.
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*
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*/
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#include <linux/config.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <asm/io.h>
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#include <asm/machvec.h>
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#include <asm/mach/sh2000.h>
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#define CF_CIS_BASE 0xb4200000
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#define PORT_PECR 0xa4000108
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#define PORT_PHCR 0xa400010E
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#define PORT_ICR1 0xa4000010
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#define PORT_IRR0 0xa4000004
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#define IDE_OFFSET 0xb6200000
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#define NIC_OFFSET 0xb6000000
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#define EXTBUS_OFFSET 0xba000000
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const char *get_system_type(void)
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{
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return "sh2000";
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}
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static unsigned long sh2000_isa_port2addr(unsigned long offset)
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{
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if((offset & ~7) == 0x1f0 || offset == 0x3f6)
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return IDE_OFFSET + offset;
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else if((offset & ~0x1f) == 0x300)
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return NIC_OFFSET + offset;
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return EXTBUS_OFFSET + offset;
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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_sh2000 __initmv = {
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.mv_nr_irqs = 80,
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.mv_isa_port2addr = sh2000_isa_port2addr,
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};
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ALIAS_MV(sh2000)
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/*
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* Initialize the board
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*/
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int __init platform_setup(void)
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{
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/* XXX: RTC setting comes here */
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/* These should be done by BIOS/IPL ... */
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/* Enable nCE2A, nCE2B output */
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ctrl_outw(ctrl_inw(PORT_PECR) & ~0xf00, PORT_PECR);
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/* Enable the Compact Flash card, and set the level interrupt */
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ctrl_outw(0x0042, CF_CIS_BASE+0x0200);
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/* Enable interrupt */
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ctrl_outw(ctrl_inw(PORT_PHCR) & ~0x03f3, PORT_PHCR);
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ctrl_outw(1, PORT_ICR1);
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ctrl_outw(ctrl_inw(PORT_IRR0) & ~0xff3f, PORT_IRR0);
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printk(KERN_INFO "SH-2000 Setup...done\n");
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return 0;
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}
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