source:
rtems/c/src/lib/libbsp/m68k/mrm332/include/mrm332.h
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098cdaf6
Last change on this file since 098cdaf6 was 332484b5, checked in by Joel Sherrill <joel.sherrill@…>, on 05/25/01 at 16:28:46 | |
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1 | /* mrm332.h |
2 | * |
3 | * $Id$ |
4 | */ |
5 | |
6 | #ifndef _MRM332_H_ |
7 | #define _MRM332_H_ |
8 | |
9 | |
10 | /* SIM_MM (SIM Module Mapping) determines the location of the control |
11 | register block. When MM=0, register addresses range fom 0x7ff000 to |
12 | 0x7FFFFF. When MM=1, register addresses range from 0xfff000 to |
13 | 0xffffff. */ |
14 | #define SIM_MM 1 |
15 | |
16 | |
17 | /* Interrupt related definitions */ |
18 | #define SIM_IARB 15 |
19 | #define QSM_IARB 10 |
20 | |
21 | #define MRM_PIV 64 |
22 | #define ISRL_PIT 4 /* zero disables PIT */ |
23 | |
24 | #define EFI_QIVR 66 /* 66=>SCI and 67=>QSPI interrupt */ |
25 | #define ISRL_QSPI 0 |
26 | |
27 | #define EFI_SPINT 24 /* spurious interrupt */ |
28 | #define EFI_INT1 25 /* CTS interrupt */ |
29 | #define ISRL_SCI 6 |
30 | |
31 | |
32 | |
33 | /* System Clock definitions */ |
34 | #define XTAL 32768.0 /* crystal frequency in Hz */ |
35 | |
36 | #if 0 |
37 | /* Default MRM clock rate (8.388688 MHz) set by CPU32: */ |
38 | #define MRM_W 0 /* system clock parameters */ |
39 | #define MRM_X 0 |
40 | #define MRM_Y 0x3f |
41 | #endif |
42 | |
43 | #if 0 |
44 | /* 16.77722 MHz: */ |
45 | #define MRM_W 1 /* system clock parameters */ |
46 | #define MRM_X 1 |
47 | #define MRM_Y 0x0f |
48 | #endif |
49 | |
50 | #if 1 |
51 | /* 25.16582 MHz: */ |
52 | #define MRM_W 1 /* system clock parameters */ |
53 | #define MRM_X 1 |
54 | #define MRM_Y 0x17 |
55 | #endif |
56 | |
57 | #define SYS_CLOCK (XTAL*4.0*(MRM_Y+1)*(1 << (2*MRM_W+MRM_X))) |
58 | #define SCI_BAUD 9600 /* RS232 Baud Rate */ |
59 | |
60 | |
61 | /* macros/functions */ |
62 | |
63 | /* |
64 | * This prototype really should have the noreturn attribute but |
65 | * that causes a warning. Not sure how to fix that. |
66 | */ |
67 | /* static void reboot(void) __attribute__ ((noreturn)); */ |
68 | static void reboot(void); |
69 | __inline__ static void reboot() {asm("trap #15; .word 0x0063");} |
70 | |
71 | #endif /* _MRM_H_ */ |
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