1 /* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $
3 * arch/sh/kernel/setup_cqreek.c
5 * Copyright (C) 2000 Niibe Yutaka
7 * CqREEK IDE/ISA Bridge Support.
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/irq.h>
15 #include <asm/mach/cqreek.h>
16 #include <asm/machvec.h>
18 #include <asm/io_generic.h>
22 #define IDE_OFFSET 0xA4000000UL
23 #define ISA_OFFSET 0xA4A00000UL
25 const char *get_system_type(void)
30 static unsigned long cqreek_port2addr(unsigned long port)
32 if (0x0000<=port && port<=0x0040)
33 return IDE_OFFSET + port;
34 if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6)
35 return IDE_OFFSET + port;
37 return ISA_OFFSET + port;
43 struct sh_machine_vector mv_cqreek __initmv = {
44 #if defined(CONFIG_CPU_SH4)
46 #elif defined(CONFIG_CPU_SUBTYPE_SH7708)
48 #elif defined(CONFIG_CPU_SUBTYPE_SH7709)
52 .mv_init_irq = init_cqreek_IRQ,
54 .mv_isa_port2addr = cqreek_port2addr,
59 * Initialize the board
61 void __init platform_setup(void)
64 /* udelay is not available at setup time yet... */
65 #define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0)
67 if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */
68 outw_p(0, BRIDGE_IDE_INTR_LVL);
69 outw_p(0, BRIDGE_IDE_INTR_MASK);
71 outw_p(0, BRIDGE_IDE_CTRL);
74 outw_p(0x8000, BRIDGE_IDE_CTRL);
77 outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */
78 outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */
79 outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */
83 if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */
84 outw_p(0, BRIDGE_ISA_INTR_LVL);
85 outw_p(0, BRIDGE_ISA_INTR_MASK);
87 outw_p(0, BRIDGE_ISA_CTRL);
89 outw_p(0x8000, BRIDGE_ISA_CTRL);
92 outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */
93 outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */
94 outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */
98 printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa);