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/config.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/irq.h>
16 #include <asm/mach/cqreek.h>
17 #include <asm/machvec.h>
19 #include <asm/io_generic.h>
23 #define IDE_OFFSET 0xA4000000UL
24 #define ISA_OFFSET 0xA4A00000UL
26 const char *get_system_type(void)
31 static unsigned long cqreek_port2addr(unsigned long port
)
33 if (0x0000<=port
&& port
<=0x0040)
34 return IDE_OFFSET
+ port
;
35 if ((0x01f0<=port
&& port
<=0x01f7) || port
== 0x03f6)
36 return IDE_OFFSET
+ port
;
38 return ISA_OFFSET
+ port
;
44 struct sh_machine_vector mv_cqreek __initmv
= {
45 #if defined(CONFIG_CPU_SH4)
47 #elif defined(CONFIG_CPU_SUBTYPE_SH7708)
49 #elif defined(CONFIG_CPU_SUBTYPE_SH7709)
53 .mv_init_irq
= init_cqreek_IRQ
,
55 .mv_isa_port2addr
= cqreek_port2addr
,
60 * Initialize the board
62 void __init
platform_setup(void)
65 /* udelay is not available at setup time yet... */
66 #define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0)
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
);
72 outw_p(0, BRIDGE_IDE_CTRL
);
75 outw_p(0x8000, BRIDGE_IDE_CTRL
);
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 */
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
);
88 outw_p(0, BRIDGE_ISA_CTRL
);
90 outw_p(0x8000, BRIDGE_ISA_CTRL
);
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 */
99 printk(KERN_INFO
"CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide
, cqreek_has_isa
);