include/asm-mips/mach-pb1x00/pb1000.h

   1 /*
   2  * Alchemy Semi PB1000 Referrence Board
   3  *
   4  * Copyright 2001 MontaVista Software Inc.
   5  * Author: MontaVista Software, Inc.
   6  *              ppopov@mvista.com or source@mvista.com
   7  *
   8  * ########################################################################
   9  *
  10  *  This program is free software; you can distribute it and/or modify it
  11  *  under the terms of the GNU General Public License (Version 2) as
  12  *  published by the Free Software Foundation.
  13  *
  14  *  This program is distributed in the hope it will be useful, but WITHOUT
  15  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17  *  for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License along
  20  *  with this program; if not, write to the Free Software Foundation, Inc.,
  21  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22  *
  23  * ########################################################################
  24  *
  25  *
  26  */
  27 #ifndef __ASM_PB1000_H
  28 #define __ASM_PB1000_H
  29
  30 /* PCMCIA PB1000 specific defines */
  31 #define PCMCIA_MAX_SOCK 1
  32 #define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
  33
  34 #define PB1000_PCR     0xBE000000
  35 #  define PCR_SLOT_0_VPP0  (1<<0)
  36 #  define PCR_SLOT_0_VPP1  (1<<1)
  37 #  define PCR_SLOT_0_VCC0  (1<<2)
  38 #  define PCR_SLOT_0_VCC1  (1<<3)
  39 #  define PCR_SLOT_0_RST   (1<<4)
  40
  41 #  define PCR_SLOT_1_VPP0  (1<<8)
  42 #  define PCR_SLOT_1_VPP1  (1<<9)
  43 #  define PCR_SLOT_1_VCC0  (1<<10)
  44 #  define PCR_SLOT_1_VCC1  (1<<11)
  45 #  define PCR_SLOT_1_RST   (1<<12)
  46
  47 #define PB1000_MDR     0xBE000004
  48 #  define MDR_PI        (1<<5)  /* pcmcia int latch  */
  49 #  define MDR_EPI      (1<<14)  /* enable pcmcia int */
  50 #  define MDR_CPI      (1<<15)  /* clear pcmcia int  */
  51
  52 #define PB1000_ACR1    0xBE000008
  53 #  define ACR1_SLOT_0_CD1    (1<<0)  /* card detect 1     */
  54 #  define ACR1_SLOT_0_CD2    (1<<1)  /* card detect 2     */
  55 #  define ACR1_SLOT_0_READY  (1<<2)  /* ready             */
  56 #  define ACR1_SLOT_0_STATUS (1<<3)  /* status change     */
  57 #  define ACR1_SLOT_0_VS1    (1<<4)  /* voltage sense 1   */
  58 #  define ACR1_SLOT_0_VS2    (1<<5)  /* voltage sense 2   */
  59 #  define ACR1_SLOT_0_INPACK (1<<6)  /* inpack pin status */
  60 #  define ACR1_SLOT_1_CD1    (1<<8)  /* card detect 1     */
  61 #  define ACR1_SLOT_1_CD2    (1<<9)  /* card detect 2     */
  62 #  define ACR1_SLOT_1_READY  (1<<10) /* ready             */
  63 #  define ACR1_SLOT_1_STATUS (1<<11) /* status change     */
  64 #  define ACR1_SLOT_1_VS1    (1<<12) /* voltage sense 1   */
  65 #  define ACR1_SLOT_1_VS2    (1<<13) /* voltage sense 2   */
  66 #  define ACR1_SLOT_1_INPACK (1<<14) /* inpack pin status */
  67
  68 #define CPLD_AUX0      0xBE00000C
  69 #define CPLD_AUX1      0xBE000010
  70 #define CPLD_AUX2      0xBE000014
  71
  72 /* Voltage levels */
  73
  74 /* VPPEN1 - VPPEN0 */
  75 #define VPP_GND ((0<<1) | (0<<0))
  76 #define VPP_5V  ((1<<1) | (0<<0))
  77 #define VPP_3V  ((0<<1) | (1<<0))
  78 #define VPP_12V ((0<<1) | (1<<0))
  79 #define VPP_HIZ ((1<<1) | (1<<0))
  80
  81 /* VCCEN1 - VCCEN0 */
  82 #define VCC_3V  ((0<<1) | (1<<0))
  83 #define VCC_5V  ((1<<1) | (0<<0))
  84 #define VCC_HIZ ((0<<1) | (0<<0))
  85
  86 /* VPP/VCC */
  87 #define SET_VCC_VPP(VCC, VPP, SLOT)\
  88         ((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
  89
  90
  91 /* PCI PB1000 specific defines */
  92 /* The reason these defines are here instead of au1000.h is because
  93  * the Au1000 does not have a PCI bus controller so the PCI implementation
  94  * on the some of the older Pb1000 boards was very board specific.
  95  */
  96 #define PCI_CONFIG_BASE   0xBA020000 /* the only external slot */
  97
  98 #define SDRAM_DEVID       0xBA010000
  99 #define SDRAM_CMD         0xBA010004
 100 #define SDRAM_CLASS       0xBA010008
 101 #define SDRAM_MISC        0xBA01000C
 102 #define SDRAM_MBAR        0xBA010010
 103
 104 #define PCI_IO_DATA_PORT  0xBA800000
 105
 106 #define PCI_IO_ADDR       0xBE00001C
 107 #define PCI_INT_ACK       0xBBC00000
 108 #define PCI_IO_READ       0xBBC00020
 109 #define PCI_IO_WRITE      0xBBC00030
 110
 111 #define PCI_BRIDGE_CONFIG 0xBE000018
 112
 113 #define PCI_IO_START      0x10000000
 114 #define PCI_IO_END        0x1000ffff
 115 #define PCI_MEM_START     0x18000000
 116 #define PCI_MEM_END       0x18ffffff
 117
 118 #define PCI_FIRST_DEVFN   0
 119 #define PCI_LAST_DEVFN    1
 120
 121 static inline u8 au_pci_io_readb(u32 addr)
 122 {
 123         writel(addr, PCI_IO_ADDR);
 124         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffcfff) | (1<<12), PCI_BRIDGE_CONFIG);
 125         return (readl(PCI_IO_DATA_PORT) & 0xff);
 126 }
 127
 128 static inline u16 au_pci_io_readw(u32 addr)
 129 {
 130         writel(addr, PCI_IO_ADDR);
 131         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffcfff) | (1<<13), PCI_BRIDGE_CONFIG);
 132         return (readl(PCI_IO_DATA_PORT) & 0xffff);
 133 }
 134
 135 static inline u32 au_pci_io_readl(u32 addr)
 136 {
 137         writel(addr, PCI_IO_ADDR);
 138         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffcfff), PCI_BRIDGE_CONFIG);
 139         return readl(PCI_IO_DATA_PORT);
 140 }
 141
 142 static inline void au_pci_io_writeb(u8 val, u32 addr)
 143 {
 144         writel(addr, PCI_IO_ADDR);
 145         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffcfff) | (1<<12), PCI_BRIDGE_CONFIG);
 146         writel(val, PCI_IO_DATA_PORT);
 147 }
 148
 149 static inline void au_pci_io_writew(u16 val, u32 addr)
 150 {
 151         writel(addr, PCI_IO_ADDR);
 152         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffcfff) | (1<<13), PCI_BRIDGE_CONFIG);
 153         writel(val, PCI_IO_DATA_PORT);
 154 }
 155
 156 static inline void au_pci_io_writel(u32 val, u32 addr)
 157 {
 158         writel(addr, PCI_IO_ADDR);
 159         writel(readl(PCI_BRIDGE_CONFIG) & 0xffffcfff, PCI_BRIDGE_CONFIG);
 160         writel(val, PCI_IO_DATA_PORT);
 161 }
 162
 163 static inline void set_sdram_extbyte(void)
 164 {
 165         writel(readl(PCI_BRIDGE_CONFIG) & 0xffffff00, PCI_BRIDGE_CONFIG);
 166 }
 167
 168 static inline void set_slot_extbyte(void)
 169 {
 170         writel((readl(PCI_BRIDGE_CONFIG) & 0xffffbf00) | 0x18, PCI_BRIDGE_CONFIG);
 171 }
 172 #endif /* __ASM_PB1000_H */