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1da177e4 LT |
1 | /* |
2 | ** asm-m68k/amigayle.h -- This header defines the registers of the gayle chip | |
3 | ** found on the Amiga 1200 | |
4 | ** This information was found by disassembling card.resource, | |
5 | ** so the definitions may not be 100% correct | |
6 | ** anyone has an official doc ? | |
7 | ** | |
8 | ** Copyright 1997 by Alain Malek | |
9 | ** | |
10 | ** This file is subject to the terms and conditions of the GNU General Public | |
11 | ** License. See the file COPYING in the main directory of this archive | |
12 | ** for more details. | |
13 | ** | |
14 | ** Created: 11/28/97 by Alain Malek | |
15 | */ | |
16 | ||
17 | #ifndef _M68K_AMIGAYLE_H_ | |
18 | #define _M68K_AMIGAYLE_H_ | |
19 | ||
20 | #include <linux/types.h> | |
21 | #include <asm/amigahw.h> | |
22 | ||
23 | /* memory layout */ | |
24 | ||
25 | #define GAYLE_RAM (0x600000+zTwoBase) | |
26 | #define GAYLE_RAMSIZE (0x400000) | |
27 | #define GAYLE_ATTRIBUTE (0xa00000+zTwoBase) | |
28 | #define GAYLE_ATTRIBUTESIZE (0x020000) | |
29 | #define GAYLE_IO (0xa20000+zTwoBase) /* 16bit and even 8bit registers */ | |
30 | #define GAYLE_IOSIZE (0x010000) | |
31 | #define GAYLE_IO_8BITODD (0xa30000+zTwoBase) /* odd 8bit registers */ | |
32 | ||
33 | /* offset for accessing odd IO registers */ | |
34 | #define GAYLE_ODD (GAYLE_IO_8BITODD-GAYLE_IO-1) | |
35 | ||
36 | /* GAYLE registers */ | |
37 | ||
38 | struct GAYLE { | |
39 | u_char cardstatus; | |
40 | u_char pad0[0x1000-1]; | |
41 | ||
42 | u_char intreq; | |
43 | u_char pad1[0x1000-1]; | |
44 | ||
45 | u_char inten; | |
46 | u_char pad2[0x1000-1]; | |
47 | ||
48 | u_char config; | |
49 | u_char pad3[0x1000-1]; | |
50 | }; | |
51 | ||
52 | #define GAYLE_ADDRESS (0xda8000) /* gayle main registers base address */ | |
53 | ||
54 | #define GAYLE_RESET (0xa40000) /* write 0x00 to start reset, | |
55 | read 1 byte to stop reset */ | |
56 | ||
57 | #define gayle (*(volatile struct GAYLE *)(zTwoBase+GAYLE_ADDRESS)) | |
58 | #define gayle_reset (*(volatile u_char *)(zTwoBase+GAYLE_RESET)) | |
59 | ||
60 | #define gayle_attribute ((volatile u_char *)(GAYLE_ATTRIBUTE)) | |
61 | ||
62 | #if 0 | |
63 | #define gayle_inb(a) readb( GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) | |
64 | #define gayle_outb(v,a) writeb( v, GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) | |
65 | ||
66 | #define gayle_inw(a) readw( GAYLE_IO+(a) ) | |
67 | #define gayle_outw(v,a) writew( v, GAYLE_IO+(a) ) | |
68 | #endif | |
69 | ||
70 | /* GAYLE_CARDSTATUS bit def */ | |
71 | ||
72 | #define GAYLE_CS_CCDET 0x40 /* credit card detect */ | |
73 | #define GAYLE_CS_BVD1 0x20 /* battery voltage detect 1 */ | |
74 | #define GAYLE_CS_SC 0x20 /* credit card status change */ | |
75 | #define GAYLE_CS_BVD2 0x10 /* battery voltage detect 2 */ | |
76 | #define GAYLE_CS_DA 0x10 /* digital audio */ | |
77 | #define GAYLE_CS_WR 0x08 /* write enable (1 == enabled) */ | |
78 | #define GAYLE_CS_BSY 0x04 /* credit card busy */ | |
79 | #define GAYLE_CS_IRQ 0x04 /* interrupt request */ | |
80 | ||
81 | /* GAYLE_IRQ bit def */ | |
82 | ||
83 | #define GAYLE_IRQ_IDE 0x80 | |
84 | #define GAYLE_IRQ_CCDET 0x40 | |
85 | #define GAYLE_IRQ_BVD1 0x20 | |
86 | #define GAYLE_IRQ_SC 0x20 | |
87 | #define GAYLE_IRQ_BVD2 0x10 | |
88 | #define GAYLE_IRQ_DA 0x10 | |
89 | #define GAYLE_IRQ_WR 0x08 | |
90 | #define GAYLE_IRQ_BSY 0x04 | |
91 | #define GAYLE_IRQ_IRQ 0x04 | |
92 | #define GAYLE_IRQ_IDEACK1 0x02 | |
93 | #define GAYLE_IRQ_IDEACK0 0x01 | |
94 | ||
95 | /* GAYLE_CONFIG bit def | |
96 | (bit 0-1 for program voltage, bit 2-3 for access speed */ | |
97 | ||
98 | #define GAYLE_CFG_0V 0x00 | |
99 | #define GAYLE_CFG_5V 0x01 | |
100 | #define GAYLE_CFG_12V 0x02 | |
101 | ||
102 | #define GAYLE_CFG_100NS 0x08 | |
103 | #define GAYLE_CFG_150NS 0x04 | |
104 | #define GAYLE_CFG_250NS 0x00 | |
105 | #define GAYLE_CFG_720NS 0x0c | |
106 | ||
9aed2302 GU |
107 | struct gayle_ide_platform_data { |
108 | unsigned long base; | |
109 | unsigned long irqport; | |
110 | int explicit_ack; /* A1200 IDE needs explicit ack */ | |
111 | }; | |
112 | ||
1da177e4 | 113 | #endif /* asm-m68k/amigayle.h */ |