3 * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 /* winbond access routines and defines*/
26 /* from the winbond data sheet -
27 The W83C553F SIO controller with PCI arbiter is a multi-function PCI device.
28 Function 0 is the ISA bridge, and Function 1 is the bus master IDE controller.
31 /*ISA bridge configuration space*/
33 #define W83C553F_VID 0x10AD
34 #define W83C553F_DID 0x0565
36 #define WINBOND_PCICONTR 0x40 /*pci control reg*/
37 #define WINBOND_SGBAR 0x41 /*scatter/gather base address reg*/
38 #define WINBOND_LBCR 0x42 /*Line Buffer Control reg*/
39 #define WINBOND_IDEIRCR 0x43 /*IDE Interrupt Routing Control Reg*/
40 #define WINBOND_PCIIRCR 0x44 /*PCI Interrupt Routing Control Reg*/
41 #define WINBOND_BTBAR 0x46 /*BIOS Timer Base Address Register*/
42 #define WINBOND_IPADCR 0x48 /*ISA to PCI Address Decoder Control Register*/
43 #define WINBOND_IRADCR 0x49 /*ISA ROM Address Decoder Control Register*/
44 #define WINBOND_IPMHSAR 0x4a /*ISA to PCI Memory Hole STart Address Register*/
45 #define WINBOND_IPMHSR 0x4b /*ISA to PCI Memory Hols Size Register*/
46 #define WINBOND_CDR 0x4c /*Clock Divisor Register*/
47 #define WINBOND_CSCR 0x4d /*Chip Select Control Register*/
48 #define WINBOND_ATSCR 0x4e /*AT System Control register*/
49 #define WINBOND_ATBCR 0x4f /*AT Bus ControL Register*/
50 #define WINBOND_IRQBEE0R 0x60 /*IRQ Break Event Enable 0 Register*/
51 #define WINBOND_IRQBEE1R 0x61 /*IRQ Break Event Enable 1 Register*/
52 #define WINBOND_ABEER 0x62 /*Additional Break Event Enable Register*/
53 #define WINBOND_DMABEER 0x63 /*DMA Break Event Enable Register*/
55 #define WINDOND_IDECSR 0x40 /*IDE Control/Status Register, Function 1*/
57 #define IPADCR_MBE512 0x1
58 #define IPADCR_MBE640 0x2
59 #define IPADCR_IPATOM4 0x10
60 #define IPADCR_IPATOM5 0x20
61 #define IPADCR_IPATOM6 0x40
62 #define IPADCR_IPATOM7 0x80
64 #define CSCR_UBIOSCSE 0x10
65 #define CSCR_BIOSWP 0x20
67 #define IDECSR_P0EN 0x01
68 #define IDECSR_P0F16 0x02
69 #define IDECSR_P1EN 0x10
70 #define IDECSR_P1F16 0x20
71 #define IDECSR_LEGIRQ 0x800
74 * Interrupt controller
76 #define W83C553F_PIC1_ICW1 CONFIG_SYS_ISA_IO + 0x20
77 #define W83C553F_PIC1_ICW2 CONFIG_SYS_ISA_IO + 0x21
78 #define W83C553F_PIC1_ICW3 CONFIG_SYS_ISA_IO + 0x21
79 #define W83C553F_PIC1_ICW4 CONFIG_SYS_ISA_IO + 0x21
80 #define W83C553F_PIC1_OCW1 CONFIG_SYS_ISA_IO + 0x21
81 #define W83C553F_PIC1_OCW2 CONFIG_SYS_ISA_IO + 0x20
82 #define W83C553F_PIC1_OCW3 CONFIG_SYS_ISA_IO + 0x20
83 #define W83C553F_PIC1_ELC CONFIG_SYS_ISA_IO + 0x4D0
84 #define W83C553F_PIC2_ICW1 CONFIG_SYS_ISA_IO + 0xA0
85 #define W83C553F_PIC2_ICW2 CONFIG_SYS_ISA_IO + 0xA1
86 #define W83C553F_PIC2_ICW3 CONFIG_SYS_ISA_IO + 0xA1
87 #define W83C553F_PIC2_ICW4 CONFIG_SYS_ISA_IO + 0xA1
88 #define W83C553F_PIC2_OCW1 CONFIG_SYS_ISA_IO + 0xA1
89 #define W83C553F_PIC2_OCW2 CONFIG_SYS_ISA_IO + 0xA0
90 #define W83C553F_PIC2_OCW3 CONFIG_SYS_ISA_IO + 0xA0
91 #define W83C553F_PIC2_ELC CONFIG_SYS_ISA_IO + 0x4D1
93 #define W83C553F_TMR1_CMOD CONFIG_SYS_ISA_IO + 0x43
98 #define W83C553F_DMA1 CONFIG_SYS_ISA_IO + 0x000 /* channel 0 - 3 */
99 #define W83C553F_DMA2 CONFIG_SYS_ISA_IO + 0x0C0 /* channel 4 - 7 */
101 /* command/status register bit definitions */
103 #define W83C553F_CS_COM_DACKAL (1<<7) /* DACK# assert level */
104 #define W83C553F_CS_COM_DREQSAL (1<<6) /* DREQ sense assert level */
105 #define W83C553F_CS_COM_GAP (1<<4) /* group arbitration priority */
106 #define W83C553F_CS_COM_CGE (1<<2) /* channel group enable */
108 #define W83C553F_CS_STAT_CH0REQ (1<<4) /* channel 0 (4) DREQ status */
109 #define W83C553F_CS_STAT_CH1REQ (1<<5) /* channel 1 (5) DREQ status */
110 #define W83C553F_CS_STAT_CH2REQ (1<<6) /* channel 2 (6) DREQ status */
111 #define W83C553F_CS_STAT_CH3REQ (1<<7) /* channel 3 (7) DREQ status */
113 #define W83C553F_CS_STAT_CH0TC (1<<0) /* channel 0 (4) TC status */
114 #define W83C553F_CS_STAT_CH1TC (1<<1) /* channel 1 (5) TC status */
115 #define W83C553F_CS_STAT_CH2TC (1<<2) /* channel 2 (6) TC status */
116 #define W83C553F_CS_STAT_CH3TC (1<<3) /* channel 3 (7) TC status */
118 /* mode register bit definitions */
120 #define W83C553F_MODE_TM_DEMAND (0<<6) /* transfer mode - demand */
121 #define W83C553F_MODE_TM_SINGLE (1<<6) /* transfer mode - single */
122 #define W83C553F_MODE_TM_BLOCK (2<<6) /* transfer mode - block */
123 #define W83C553F_MODE_TM_CASCADE (3<<6) /* transfer mode - cascade */
124 #define W83C553F_MODE_ADDRDEC (1<<5) /* address increment/decrement select */
125 #define W83C553F_MODE_AUTOINIT (1<<4) /* autoinitialize enable */
126 #define W83C553F_MODE_TT_VERIFY (0<<2) /* transfer type - verify */
127 #define W83C553F_MODE_TT_WRITE (1<<2) /* transfer type - write */
128 #define W83C553F_MODE_TT_READ (2<<2) /* transfer type - read */
129 #define W83C553F_MODE_TT_ILLEGAL (3<<2) /* transfer type - illegal */
130 #define W83C553F_MODE_CH0SEL (0<<0) /* channel 0 (4) select */
131 #define W83C553F_MODE_CH1SEL (1<<0) /* channel 1 (5) select */
132 #define W83C553F_MODE_CH2SEL (2<<0) /* channel 2 (6) select */
133 #define W83C553F_MODE_CH3SEL (3<<0) /* channel 3 (7) select */
135 /* request register bit definitions */
137 #define W83C553F_REQ_CHSERREQ (1<<2) /* channel service request */
138 #define W83C553F_REQ_CH0SEL (0<<0) /* channel 0 (4) select */
139 #define W83C553F_REQ_CH1SEL (1<<0) /* channel 1 (5) select */
140 #define W83C553F_REQ_CH2SEL (2<<0) /* channel 2 (6) select */
141 #define W83C553F_REQ_CH3SEL (3<<0) /* channel 3 (7) select */
143 /* write single mask bit register bit definitions */
145 #define W83C553F_WSMB_CHMASKSEL (1<<2) /* channel mask select */
146 #define W83C553F_WSMB_CH0SEL (0<<0) /* channel 0 (4) select */
147 #define W83C553F_WSMB_CH1SEL (1<<0) /* channel 1 (5) select */
148 #define W83C553F_WSMB_CH2SEL (2<<0) /* channel 2 (6) select */
149 #define W83C553F_WSMB_CH3SEL (3<<0) /* channel 3 (7) select */
151 /* read/write all mask bits register bit definitions */
153 #define W83C553F_RWAMB_CH0MASK (1<<0) /* channel 0 (4) mask */
154 #define W83C553F_RWAMB_CH1MASK (1<<1) /* channel 1 (5) mask */
155 #define W83C553F_RWAMB_CH2MASK (1<<2) /* channel 2 (6) mask */
156 #define W83C553F_RWAMB_CH3MASK (1<<3) /* channel 3 (7) mask */
160 #define W83C553F_DMA1_CS 0x8
161 #define W83C553F_DMA1_WR 0x9
162 #define W83C553F_DMA1_WSMB 0xA
163 #define W83C553F_DMA1_WM 0xB
164 #define W83C553F_DMA1_CBP 0xC
165 #define W83C553F_DMA1_MC 0xD
166 #define W83C553F_DMA1_CM 0xE
167 #define W83C553F_DMA1_RWAMB 0xF
169 #define W83C553F_DMA2_CS 0x10
170 #define W83C553F_DMA2_WR 0x12
171 #define W83C553F_DMA2_WSMB 0x14
172 #define W83C553F_DMA2_WM 0x16
173 #define W83C553F_DMA2_CBP 0x18
174 #define W83C553F_DMA2_MC 0x1A
175 #define W83C553F_DMA2_CM 0x1C
176 #define W83C553F_DMA2_RWAMB 0x1E
178 void initialise_w83c553f(void);