1 /****************************************************************************/ 2 3 /* 4 * anchor.h -- Anchor CO-MEM Lite PCI host bridge part. 5 * 6 * (C) Copyright 2000, Moreton Bay (www.moreton.com.au) 7 */ 8 9 /****************************************************************************/ 10 #ifndef anchor_h 11 #define anchor_h 12 /****************************************************************************/ 13 14 /* 15 * Define basic addressing info. 16 */ 17 #if defined(CONFIG_M5407C3) 18 #define COMEM_BASE 0xFFFF0000 /* Base of CO-MEM address space */ 19 #define COMEM_IRQ 25 /* IRQ of anchor part */ 20 #else 21 #define COMEM_BASE 0x80000000 /* Base of CO-MEM address space */ 22 #define COMEM_IRQ 25 /* IRQ of anchor part */ 23 #endif 24 25 /****************************************************************************/ 26 27 /* 28 * 4-byte registers of CO-MEM, so adjust register addresses for 29 * easy access. Handy macro for word access too. 30 */ 31 #define LREG(a) ((a) >> 2) 32 #define WREG(a) ((a) >> 1) 33 34 35 /* 36 * Define base addresses within CO-MEM Lite register address space. 37 */ 38 #define COMEM_I2O 0x0000 /* I2O registers */ 39 #define COMEM_OPREGS 0x0400 /* Operation registers */ 40 #define COMEM_PCIBUS 0x2000 /* Direct access to PCI bus */ 41 #define COMEM_SHMEM 0x4000 /* Shared memory region */ 42 43 #define COMEM_SHMEMSIZE 0x4000 /* Size of shared memory */ 44 45 46 /* 47 * Define CO-MEM Registers. 48 */ 49 #define COMEM_I2OHISR 0x0030 /* I2O host interrupt status */ 50 #define COMEM_I2OHIMR 0x0034 /* I2O host interrupt mask */ 51 #define COMEM_I2OLISR 0x0038 /* I2O local interrupt status */ 52 #define COMEM_I2OLIMR 0x003c /* I2O local interrupt mask */ 53 #define COMEM_IBFPFIFO 0x0040 /* I2O inbound free/post FIFO */ 54 #define COMEM_OBPFFIFO 0x0044 /* I2O outbound post/free FIFO */ 55 #define COMEM_IBPFFIFO 0x0048 /* I2O inbound post/free FIFO */ 56 #define COMEM_OBFPFIFO 0x004c /* I2O outbound free/post FIFO */ 57 58 #define COMEM_DAHBASE 0x0460 /* Direct access base address */ 59 60 #define COMEM_NVCMD 0x04a0 /* I2C serial command */ 61 #define COMEM_NVREAD 0x04a4 /* I2C serial read */ 62 #define COMEM_NVSTAT 0x04a8 /* I2C status */ 63 64 #define COMEM_DMALBASE 0x04b0 /* DMA local base address */ 65 #define COMEM_DMAHBASE 0x04b4 /* DMA host base address */ 66 #define COMEM_DMASIZE 0x04b8 /* DMA size */ 67 #define COMEM_DMACTL 0x04bc /* DMA control */ 68 69 #define COMEM_HCTL 0x04e0 /* Host control */ 70 #define COMEM_HINT 0x04e4 /* Host interrupt control/status */ 71 #define COMEM_HLDATA 0x04e8 /* Host to local data mailbox */ 72 #define COMEM_LINT 0x04f4 /* Local interrupt contole status */ 73 #define COMEM_LHDATA 0x04f8 /* Local to host data mailbox */ 74 75 #define COMEM_LBUSCFG 0x04fc /* Local bus configuration */ 76 77 78 /* 79 * Commands and flags for use with Direct Access Register. 80 */ 81 #define COMEM_DA_IACK 0x00000000 /* Interrupt acknowledge (read) */ 82 #define COMEM_DA_SPCL 0x00000010 /* Special cycle (write) */ 83 #define COMEM_DA_MEMRD 0x00000004 /* Memory read cycle */ 84 #define COMEM_DA_MEMWR 0x00000004 /* Memory write cycle */ 85 #define COMEM_DA_IORD 0x00000002 /* I/O read cycle */ 86 #define COMEM_DA_IOWR 0x00000002 /* I/O write cycle */ 87 #define COMEM_DA_CFGRD 0x00000006 /* Configuration read cycle */ 88 #define COMEM_DA_CFGWR 0x00000006 /* Configuration write cycle */ 89 90 #define COMEM_DA_ADDR(a) ((a) & 0xffffe000) 91 92 #define COMEM_DA_OFFSET(a) ((a) & 0x00001fff) 93 94 95 /* 96 * The PCI bus will be limited in what slots will actually be used. 97 * Define valid device numbers for different boards. 98 */ 99 #if defined(CONFIG_M5407C3) 100 #define COMEM_MINDEV 14 /* Minimum valid DEVICE */ 101 #define COMEM_MAXDEV 14 /* Maximum valid DEVICE */ 102 #define COMEM_BRIDGEDEV 15 /* Slot bridge is in */ 103 #else 104 #define COMEM_MINDEV 0 /* Minimum valid DEVICE */ 105 #define COMEM_MAXDEV 3 /* Maximum valid DEVICE */ 106 #endif 107 108 #define COMEM_MAXPCI (COMEM_MAXDEV+1) /* Maximum PCI devices */ 109 110 111 /****************************************************************************/ 112 #endif /* anchor_h */ 113