xref: /openbmc/linux/arch/m68k/include/asm/q40_master.h (revision 9746882f)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Q40 master Chip Control
4  * RTC stuff merged for compactness.
5 */
6 
7 #ifndef _Q40_MASTER_H
8 #define _Q40_MASTER_H
9 
10 #include <asm/raw_io.h>
11 #include <asm/kmap.h>
12 
13 #define q40_master_addr 0xff000000
14 
15 #define IIRQ_REG            0x0       /* internal IRQ reg */
16 #define EIRQ_REG            0x4       /* external ... */
17 #define KEYCODE_REG         0x1c      /* value of received scancode  */
18 #define DISPLAY_CONTROL_REG 0x18
19 #define FRAME_CLEAR_REG     0x24
20 #define LED_REG             0x30
21 
22 #define Q40_LED_ON()        master_outb(1,LED_REG)
23 #define Q40_LED_OFF()       master_outb(0,LED_REG)
24 
25 #define INTERRUPT_REG       IIRQ_REG  /* "native" ints */
26 #define KEY_IRQ_ENABLE_REG  0x08      /**/
27 #define KEYBOARD_UNLOCK_REG 0x20      /* clear kb int */
28 
29 #define SAMPLE_ENABLE_REG   0x14      /* generate SAMPLE ints */
30 #define SAMPLE_RATE_REG     0x2c
31 #define SAMPLE_CLEAR_REG    0x28
32 #define SAMPLE_LOW          0x00
33 #define SAMPLE_HIGH         0x01
34 
35 #define FRAME_RATE_REG       0x38      /* generate FRAME ints at 200 HZ rate */
36 
37 #if 0
38 #define SER_ENABLE_REG      0x0c      /* allow serial ints to be generated */
39 #endif
40 #define EXT_ENABLE_REG      0x10      /* ... rest of the ISA ints ... */
41 
42 
43 #define master_inb(_reg_)      in_8((unsigned char *)q40_master_addr+_reg_)
44 #define master_outb(_b_,_reg_)  out_8((unsigned char *)q40_master_addr+_reg_,_b_)
45 
46 /* RTC defines */
47 
48 #define Q40_RTC_BASE	    (0xff021ffc)
49 
50 #define Q40_RTC_YEAR        (*(volatile unsigned char *)(Q40_RTC_BASE+0))
51 #define Q40_RTC_MNTH        (*(volatile unsigned char *)(Q40_RTC_BASE-4))
52 #define Q40_RTC_DATE        (*(volatile unsigned char *)(Q40_RTC_BASE-8))
53 #define Q40_RTC_DOW         (*(volatile unsigned char *)(Q40_RTC_BASE-12))
54 #define Q40_RTC_HOUR        (*(volatile unsigned char *)(Q40_RTC_BASE-16))
55 #define Q40_RTC_MINS        (*(volatile unsigned char *)(Q40_RTC_BASE-20))
56 #define Q40_RTC_SECS        (*(volatile unsigned char *)(Q40_RTC_BASE-24))
57 #define Q40_RTC_CTRL        (*(volatile unsigned char *)(Q40_RTC_BASE-28))
58 
59 /* some control bits */
60 #define Q40_RTC_READ   64  /* prepare for reading */
61 #define Q40_RTC_WRITE  128
62 
63 /* define some Q40 specific ints */
64 #include <asm/q40ints.h>
65 
66 /* misc defs */
67 #define DAC_LEFT  ((unsigned char *)0xff008000)
68 #define DAC_RIGHT ((unsigned char *)0xff008004)
69 
70 #endif /* _Q40_MASTER_H */
71