include/w83c553f.h

   1 /*
   2  * (C) Copyright 2000
   3  * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   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.
  12  *
  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.
  17  *
  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,
  21  * MA 02111-1307 USA
  22  */
  23
  24  /* winbond access routines and defines*/
  25
  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.
  29 */
  30
  31 /*ISA bridge configuration space*/
  32
  33 #define W83C553F_VID            0x10AD
  34 #define W83C553F_DID            0x0565
  35
  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*/
  54
  55 #define WINDOND_IDECSR          0x40  /*IDE Control/Status Register, Function 1*/
  56
  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
  63
  64 #define CSCR_UBIOSCSE           0x10
  65 #define CSCR_BIOSWP                     0x20
  66
  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
  72
  73 /*
  74  * Interrupt controller
  75  */
  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
  92
  93 #define W83C553F_TMR1_CMOD      CONFIG_SYS_ISA_IO + 0x43
  94
  95 /*
  96  * DMA controller
  97  */
  98 #define W83C553F_DMA1   CONFIG_SYS_ISA_IO + 0x000       /* channel 0 - 3 */
  99 #define W83C553F_DMA2   CONFIG_SYS_ISA_IO + 0x0C0       /* channel 4 - 7 */
 100
 101 /* command/status register bit definitions */
 102
 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 */
 107
 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 */
 112
 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 */
 117
 118 /* mode register bit definitions */
 119
 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 */
 134
 135 /* request register bit definitions */
 136
 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 */
 142
 143 /* write single mask bit register bit definitions */
 144
 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 */
 150
 151 /* read/write all mask bits register bit definitions */
 152
 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 */
 157
 158 /* typedefs */
 159
 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
 168
 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
 177
 178 void initialise_w83c553f(void);