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012771d8 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Rob Taylor, Flying Pig Systems. [email protected]. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
012771d8 WD |
6 | */ |
7 | ||
8 | /* winbond access routines and defines*/ | |
9 | ||
10 | /* from the winbond data sheet - | |
11 | The W83C553F SIO controller with PCI arbiter is a multi-function PCI device. | |
12 | Function 0 is the ISA bridge, and Function 1 is the bus master IDE controller. | |
13 | */ | |
14 | ||
15 | /*ISA bridge configuration space*/ | |
16 | ||
17 | #define W83C553F_VID 0x10AD | |
18 | #define W83C553F_DID 0x0565 | |
19 | ||
20 | #define WINBOND_PCICONTR 0x40 /*pci control reg*/ | |
21 | #define WINBOND_SGBAR 0x41 /*scatter/gather base address reg*/ | |
22 | #define WINBOND_LBCR 0x42 /*Line Buffer Control reg*/ | |
23 | #define WINBOND_IDEIRCR 0x43 /*IDE Interrupt Routing Control Reg*/ | |
24 | #define WINBOND_PCIIRCR 0x44 /*PCI Interrupt Routing Control Reg*/ | |
25 | #define WINBOND_BTBAR 0x46 /*BIOS Timer Base Address Register*/ | |
26 | #define WINBOND_IPADCR 0x48 /*ISA to PCI Address Decoder Control Register*/ | |
27 | #define WINBOND_IRADCR 0x49 /*ISA ROM Address Decoder Control Register*/ | |
28 | #define WINBOND_IPMHSAR 0x4a /*ISA to PCI Memory Hole STart Address Register*/ | |
29 | #define WINBOND_IPMHSR 0x4b /*ISA to PCI Memory Hols Size Register*/ | |
30 | #define WINBOND_CDR 0x4c /*Clock Divisor Register*/ | |
31 | #define WINBOND_CSCR 0x4d /*Chip Select Control Register*/ | |
32 | #define WINBOND_ATSCR 0x4e /*AT System Control register*/ | |
33 | #define WINBOND_ATBCR 0x4f /*AT Bus ControL Register*/ | |
34 | #define WINBOND_IRQBEE0R 0x60 /*IRQ Break Event Enable 0 Register*/ | |
35 | #define WINBOND_IRQBEE1R 0x61 /*IRQ Break Event Enable 1 Register*/ | |
36 | #define WINBOND_ABEER 0x62 /*Additional Break Event Enable Register*/ | |
37 | #define WINBOND_DMABEER 0x63 /*DMA Break Event Enable Register*/ | |
38 | ||
39 | #define WINDOND_IDECSR 0x40 /*IDE Control/Status Register, Function 1*/ | |
40 | ||
41 | #define IPADCR_MBE512 0x1 | |
42 | #define IPADCR_MBE640 0x2 | |
43 | #define IPADCR_IPATOM4 0x10 | |
44 | #define IPADCR_IPATOM5 0x20 | |
45 | #define IPADCR_IPATOM6 0x40 | |
46 | #define IPADCR_IPATOM7 0x80 | |
47 | ||
48 | #define CSCR_UBIOSCSE 0x10 | |
49 | #define CSCR_BIOSWP 0x20 | |
50 | ||
51 | #define IDECSR_P0EN 0x01 | |
52 | #define IDECSR_P0F16 0x02 | |
53 | #define IDECSR_P1EN 0x10 | |
54 | #define IDECSR_P1F16 0x20 | |
55 | #define IDECSR_LEGIRQ 0x800 | |
56 | ||
57 | /* | |
58 | * Interrupt controller | |
59 | */ | |
6d0f6bcf JCPV |
60 | #define W83C553F_PIC1_ICW1 CONFIG_SYS_ISA_IO + 0x20 |
61 | #define W83C553F_PIC1_ICW2 CONFIG_SYS_ISA_IO + 0x21 | |
62 | #define W83C553F_PIC1_ICW3 CONFIG_SYS_ISA_IO + 0x21 | |
63 | #define W83C553F_PIC1_ICW4 CONFIG_SYS_ISA_IO + 0x21 | |
64 | #define W83C553F_PIC1_OCW1 CONFIG_SYS_ISA_IO + 0x21 | |
65 | #define W83C553F_PIC1_OCW2 CONFIG_SYS_ISA_IO + 0x20 | |
66 | #define W83C553F_PIC1_OCW3 CONFIG_SYS_ISA_IO + 0x20 | |
67 | #define W83C553F_PIC1_ELC CONFIG_SYS_ISA_IO + 0x4D0 | |
68 | #define W83C553F_PIC2_ICW1 CONFIG_SYS_ISA_IO + 0xA0 | |
69 | #define W83C553F_PIC2_ICW2 CONFIG_SYS_ISA_IO + 0xA1 | |
70 | #define W83C553F_PIC2_ICW3 CONFIG_SYS_ISA_IO + 0xA1 | |
71 | #define W83C553F_PIC2_ICW4 CONFIG_SYS_ISA_IO + 0xA1 | |
72 | #define W83C553F_PIC2_OCW1 CONFIG_SYS_ISA_IO + 0xA1 | |
73 | #define W83C553F_PIC2_OCW2 CONFIG_SYS_ISA_IO + 0xA0 | |
74 | #define W83C553F_PIC2_OCW3 CONFIG_SYS_ISA_IO + 0xA0 | |
75 | #define W83C553F_PIC2_ELC CONFIG_SYS_ISA_IO + 0x4D1 | |
012771d8 | 76 | |
6d0f6bcf | 77 | #define W83C553F_TMR1_CMOD CONFIG_SYS_ISA_IO + 0x43 |
012771d8 WD |
78 | |
79 | /* | |
80 | * DMA controller | |
81 | */ | |
6d0f6bcf JCPV |
82 | #define W83C553F_DMA1 CONFIG_SYS_ISA_IO + 0x000 /* channel 0 - 3 */ |
83 | #define W83C553F_DMA2 CONFIG_SYS_ISA_IO + 0x0C0 /* channel 4 - 7 */ | |
012771d8 WD |
84 | |
85 | /* command/status register bit definitions */ | |
86 | ||
87 | #define W83C553F_CS_COM_DACKAL (1<<7) /* DACK# assert level */ | |
88 | #define W83C553F_CS_COM_DREQSAL (1<<6) /* DREQ sense assert level */ | |
89 | #define W83C553F_CS_COM_GAP (1<<4) /* group arbitration priority */ | |
90 | #define W83C553F_CS_COM_CGE (1<<2) /* channel group enable */ | |
91 | ||
92 | #define W83C553F_CS_STAT_CH0REQ (1<<4) /* channel 0 (4) DREQ status */ | |
93 | #define W83C553F_CS_STAT_CH1REQ (1<<5) /* channel 1 (5) DREQ status */ | |
94 | #define W83C553F_CS_STAT_CH2REQ (1<<6) /* channel 2 (6) DREQ status */ | |
95 | #define W83C553F_CS_STAT_CH3REQ (1<<7) /* channel 3 (7) DREQ status */ | |
96 | ||
97 | #define W83C553F_CS_STAT_CH0TC (1<<0) /* channel 0 (4) TC status */ | |
98 | #define W83C553F_CS_STAT_CH1TC (1<<1) /* channel 1 (5) TC status */ | |
99 | #define W83C553F_CS_STAT_CH2TC (1<<2) /* channel 2 (6) TC status */ | |
100 | #define W83C553F_CS_STAT_CH3TC (1<<3) /* channel 3 (7) TC status */ | |
101 | ||
102 | /* mode register bit definitions */ | |
103 | ||
104 | #define W83C553F_MODE_TM_DEMAND (0<<6) /* transfer mode - demand */ | |
105 | #define W83C553F_MODE_TM_SINGLE (1<<6) /* transfer mode - single */ | |
106 | #define W83C553F_MODE_TM_BLOCK (2<<6) /* transfer mode - block */ | |
107 | #define W83C553F_MODE_TM_CASCADE (3<<6) /* transfer mode - cascade */ | |
108 | #define W83C553F_MODE_ADDRDEC (1<<5) /* address increment/decrement select */ | |
109 | #define W83C553F_MODE_AUTOINIT (1<<4) /* autoinitialize enable */ | |
110 | #define W83C553F_MODE_TT_VERIFY (0<<2) /* transfer type - verify */ | |
111 | #define W83C553F_MODE_TT_WRITE (1<<2) /* transfer type - write */ | |
112 | #define W83C553F_MODE_TT_READ (2<<2) /* transfer type - read */ | |
113 | #define W83C553F_MODE_TT_ILLEGAL (3<<2) /* transfer type - illegal */ | |
114 | #define W83C553F_MODE_CH0SEL (0<<0) /* channel 0 (4) select */ | |
115 | #define W83C553F_MODE_CH1SEL (1<<0) /* channel 1 (5) select */ | |
116 | #define W83C553F_MODE_CH2SEL (2<<0) /* channel 2 (6) select */ | |
117 | #define W83C553F_MODE_CH3SEL (3<<0) /* channel 3 (7) select */ | |
118 | ||
119 | /* request register bit definitions */ | |
120 | ||
121 | #define W83C553F_REQ_CHSERREQ (1<<2) /* channel service request */ | |
122 | #define W83C553F_REQ_CH0SEL (0<<0) /* channel 0 (4) select */ | |
123 | #define W83C553F_REQ_CH1SEL (1<<0) /* channel 1 (5) select */ | |
124 | #define W83C553F_REQ_CH2SEL (2<<0) /* channel 2 (6) select */ | |
125 | #define W83C553F_REQ_CH3SEL (3<<0) /* channel 3 (7) select */ | |
126 | ||
127 | /* write single mask bit register bit definitions */ | |
128 | ||
129 | #define W83C553F_WSMB_CHMASKSEL (1<<2) /* channel mask select */ | |
130 | #define W83C553F_WSMB_CH0SEL (0<<0) /* channel 0 (4) select */ | |
131 | #define W83C553F_WSMB_CH1SEL (1<<0) /* channel 1 (5) select */ | |
132 | #define W83C553F_WSMB_CH2SEL (2<<0) /* channel 2 (6) select */ | |
133 | #define W83C553F_WSMB_CH3SEL (3<<0) /* channel 3 (7) select */ | |
134 | ||
135 | /* read/write all mask bits register bit definitions */ | |
136 | ||
137 | #define W83C553F_RWAMB_CH0MASK (1<<0) /* channel 0 (4) mask */ | |
138 | #define W83C553F_RWAMB_CH1MASK (1<<1) /* channel 1 (5) mask */ | |
139 | #define W83C553F_RWAMB_CH2MASK (1<<2) /* channel 2 (6) mask */ | |
140 | #define W83C553F_RWAMB_CH3MASK (1<<3) /* channel 3 (7) mask */ | |
141 | ||
142 | /* typedefs */ | |
143 | ||
144 | #define W83C553F_DMA1_CS 0x8 | |
145 | #define W83C553F_DMA1_WR 0x9 | |
146 | #define W83C553F_DMA1_WSMB 0xA | |
147 | #define W83C553F_DMA1_WM 0xB | |
148 | #define W83C553F_DMA1_CBP 0xC | |
149 | #define W83C553F_DMA1_MC 0xD | |
150 | #define W83C553F_DMA1_CM 0xE | |
151 | #define W83C553F_DMA1_RWAMB 0xF | |
152 | ||
153 | #define W83C553F_DMA2_CS 0x10 | |
154 | #define W83C553F_DMA2_WR 0x12 | |
155 | #define W83C553F_DMA2_WSMB 0x14 | |
156 | #define W83C553F_DMA2_WM 0x16 | |
157 | #define W83C553F_DMA2_CBP 0x18 | |
158 | #define W83C553F_DMA2_MC 0x1A | |
159 | #define W83C553F_DMA2_CM 0x1C | |
160 | #define W83C553F_DMA2_RWAMB 0x1E | |
161 | ||
162 | void initialise_w83c553f(void); |