diff options
Diffstat (limited to 'arch/sh/boards/cqreek/setup.c')
-rw-r--r-- | arch/sh/boards/cqreek/setup.c | 101 |
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 --- /dev/null +++ b/arch/sh/boards/cqreek/setup.c | |||
@@ -0,0 +1,101 @@ | |||
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 | |||
26 | const char *get_system_type(void) | ||
27 | { | ||
28 | return "CqREEK"; | ||
29 | } | ||
30 | |||
31 | static 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 | */ | ||
44 | struct 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 | }; | ||
57 | ALIAS_MV(cqreek) | ||
58 | |||
59 | /* | ||
60 | * Initialize the board | ||
61 | */ | ||
62 | void __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 | |||