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-rw-r--r--arch/sh/boards/cqreek/setup.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/arch/sh/boards/cqreek/setup.c b/arch/sh/boards/cqreek/setup.c
new file mode 100644
index 000000000000..29b537cd6546
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+++ b/arch/sh/boards/cqreek/setup.c
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1/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $
2 *
3 * arch/sh/kernel/setup_cqreek.c
4 *
5 * Copyright (C) 2000 Niibe Yutaka
6 *
7 * CqREEK IDE/ISA Bridge Support.
8 *
9 */
10
11#include <linux/config.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/irq.h>
15
16#include <asm/mach/cqreek.h>
17#include <asm/machvec.h>
18#include <asm/io.h>
19#include <asm/io_generic.h>
20#include <asm/irq.h>
21#include <asm/rtc.h>
22
23#define IDE_OFFSET 0xA4000000UL
24#define ISA_OFFSET 0xA4A00000UL
25
26const char *get_system_type(void)
27{
28 return "CqREEK";
29}
30
31static unsigned long cqreek_port2addr(unsigned long port)
32{
33 if (0x0000<=port && port<=0x0040)
34 return IDE_OFFSET + port;
35 if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6)
36 return IDE_OFFSET + port;
37
38 return ISA_OFFSET + port;
39}
40
41/*
42 * The Machine Vector
43 */
44struct sh_machine_vector mv_cqreek __initmv = {
45#if defined(CONFIG_CPU_SH4)
46 .mv_nr_irqs = 48,
47#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
48 .mv_nr_irqs = 32,
49#elif defined(CONFIG_CPU_SUBTYPE_SH7709)
50 .mv_nr_irqs = 61,
51#endif
52
53 .mv_init_irq = init_cqreek_IRQ,
54
55 .mv_isa_port2addr = cqreek_port2addr,
56};
57ALIAS_MV(cqreek)
58
59/*
60 * Initialize the board
61 */
62void __init platform_setup(void)
63{
64 int i;
65/* udelay is not available at setup time yet... */
66#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0)
67
68 if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */
69 outw_p(0, BRIDGE_IDE_INTR_LVL);
70 outw_p(0, BRIDGE_IDE_INTR_MASK);
71
72 outw_p(0, BRIDGE_IDE_CTRL);
73 DELAY();
74
75 outw_p(0x8000, BRIDGE_IDE_CTRL);
76 DELAY();
77
78 outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */
79 outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */
80 outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */
81 cqreek_has_ide=1;
82 }
83
84 if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */
85 outw_p(0, BRIDGE_ISA_INTR_LVL);
86 outw_p(0, BRIDGE_ISA_INTR_MASK);
87
88 outw_p(0, BRIDGE_ISA_CTRL);
89 DELAY();
90 outw_p(0x8000, BRIDGE_ISA_CTRL);
91 DELAY();
92
93 outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */
94 outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */
95 outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */
96 cqreek_has_isa=1;
97 }
98
99 printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa);
100}
101