1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* apollohw.h : some structures to access apollo HW */
3
4 #ifndef _ASMm68k_APOLLOHW_H_
5 #define _ASMm68k_APOLLOHW_H_
6
7 #include <linux/types.h>
8
9 #include <asm/bootinfo-apollo.h>
10
11
12 extern u_long apollo_model;
13
14
15 /*
16 see scn2681 data sheet for more info.
17 member names are read_write.
18 */
19
20 #define DECLARE_2681_FIELD(x) unsigned char x; unsigned char dummy##x
21
22 struct SCN2681 {
23
24 DECLARE_2681_FIELD(mra);
25 DECLARE_2681_FIELD(sra_csra);
26 DECLARE_2681_FIELD(BRGtest_cra);
27 DECLARE_2681_FIELD(rhra_thra);
28 DECLARE_2681_FIELD(ipcr_acr);
29 DECLARE_2681_FIELD(isr_imr);
30 DECLARE_2681_FIELD(ctu_ctur);
31 DECLARE_2681_FIELD(ctl_ctlr);
32 DECLARE_2681_FIELD(mrb);
33 DECLARE_2681_FIELD(srb_csrb);
34 DECLARE_2681_FIELD(tst_crb);
35 DECLARE_2681_FIELD(rhrb_thrb);
36 DECLARE_2681_FIELD(reserved);
37 DECLARE_2681_FIELD(ip_opcr);
38 DECLARE_2681_FIELD(startCnt_setOutBit);
39 DECLARE_2681_FIELD(stopCnt_resetOutBit);
40
41 };
42
43 struct mc146818 {
44 unsigned char second, alarm_second;
45 unsigned char minute, alarm_minute;
46 unsigned char hours, alarm_hours;
47 unsigned char day_of_week, day_of_month;
48 unsigned char month, year;
49 };
50
51
52 #define IO_BASE 0x80000000
53
54 extern u_long sio01_physaddr;
55 extern u_long sio23_physaddr;
56 extern u_long rtc_physaddr;
57 extern u_long pica_physaddr;
58 extern u_long picb_physaddr;
59 extern u_long cpuctrl_physaddr;
60 extern u_long timer_physaddr;
61
62 #define SAU7_SIO01_PHYSADDR 0x10400
63 #define SAU7_SIO23_PHYSADDR 0x10500
64 #define SAU7_RTC_PHYSADDR 0x10900
65 #define SAU7_PICA 0x11000
66 #define SAU7_PICB 0x11100
67 #define SAU7_CPUCTRL 0x10100
68 #define SAU7_TIMER 0x010800
69
70 #define SAU8_SIO01_PHYSADDR 0x8400
71 #define SAU8_RTC_PHYSADDR 0x8900
72 #define SAU8_PICA 0x9400
73 #define SAU8_PICB 0x9500
74 #define SAU8_CPUCTRL 0x8100
75 #define SAU8_TIMER 0x8800
76
77 #define sio01 ((*(volatile struct SCN2681 *)(IO_BASE + sio01_physaddr)))
78 #define sio23 ((*(volatile struct SCN2681 *)(IO_BASE + sio23_physaddr)))
79 #define rtc (((volatile struct mc146818 *)(IO_BASE + rtc_physaddr)))
80 #define cpuctrl (*(volatile unsigned int *)(IO_BASE + cpuctrl_physaddr))
81 #define pica (IO_BASE + pica_physaddr)
82 #define picb (IO_BASE + picb_physaddr)
83 #define apollo_timer (IO_BASE + timer_physaddr)
84 #define addr_xlat_map ((unsigned short *)(IO_BASE + 0x17000))
85
86 #define isaIO2mem(x) (((((x) & 0x3f8) << 7) | (((x) & 0xfc00) >> 6) | ((x) & 0x7)) + 0x40000 + IO_BASE)
87
88 #define IRQ_APOLLO IRQ_USER
89
90 #endif
91
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