1 /* 2 * PLX 9060 PCI Interface chip 3 */ 4 5 /* 6 * PCI configuration registers, same offset on local and PCI sides, 7 * but on PCI side, must use PCI BIOS calls to read/write. 8 */ 9 #define PCI_PLXREGS_BASE_ADDR 0x10 10 11 #define PCI_PLXREGS_IO_ADDR 0x14 12 13 #define PCI_SPACE0_BASE_ADDR 0x18 14 15 #define PCI_ROM_BASE_ADDR 0x30 16 # define PCI_ROM_ENABLED 0x00000001 17 18 #define PCI_INT_LINE 0x3C 19 20 /* 21 * Registers accessable directly from PCI and local side. 22 * Offset is from PCI side. Add PLX_LCL_OFFSET for local address. 23 */ 24 #define PLX_LCL_OFFSET 0x80 /* Offset of regs from local side */ 25 26 /* 27 * Local Configuration Registers 28 */ 29 #define PLX_SPACE0_RANGE 0x00 /* Range for PCI to Lcl Addr Space 0 */ 30 #define PLX_SPACE0_BASE_ADDR 0x04 /* Lcl Base address remap */ 31 32 #define PLX_ROM_RANGE 0x10 /* Range for expansion ROM (DMA) */ 33 #define PLX_ROM_BASE_ADDR 0x14 /* Lcl base address remap for ROM */ 34 35 #define PLX_BUS_REGION 0x18 /* Bus Region Descriptors */ 36 37 /* 38 * Shared Run Time Registers 39 */ 40 #define PLX_MBOX0 0x40 41 #define PLX_MBOX1 0x44 42 #define PLX_MBOX2 0x48 43 #define PLX_MBOX3 0x4C 44 #define PLX_MBOX4 0x50 45 #define PLX_MBOX5 0x54 46 #define PLX_MBOX6 0x58 47 #define PLX_MBOX7 0x5C 48 49 #define PLX_PCI2LCL_DOORBELL 0x60 50 51 #define PLX_LCL2PCI_DOORBELL 0x64 52 53 #define PLX_INT_CSR 0x68 /* Interrupt Control/Status */ 54 # define PLX_LSERR_ENABLE 0x00000001 55 # define PLX_LSERR_PE 0x00000002 56 # define PLX_SERR 0x00000004 57 # undef PLX_UNUSED /* 0x00000008 */ 58 # undef PLX_UNUSED /* 0x00000010 */ 59 # undef PLX_UNUSED /* 0x00000020 */ 60 # undef PLX_UNUSED /* 0x00000040 */ 61 # undef PLX_UNUSED /* 0x00000080 */ 62 # define PLX_PCI_IE 0x00000100 63 # define PLX_PCI_DOORBELL_IE 0x00000200 64 # define PLX_PCI_ABORT_IE 0x00000400 65 # define PLX_PCI_LOCAL_IE 0x00000800 66 # define PLX_RETRY_ABORT_ENABLE 0x00001000 67 # define PLX_PCI_DOORBELL_INT 0x00002000 68 # define PLX_PCI_ABORT_INT 0x00004000 69 # define PLX_PCI_LOCAL_INT 0x00008000 70 # define PLX_LCL_IE 0x00010000 71 # define PLX_LCL_DOORBELL_IE 0x00020000 72 # define PLX_LCL_DMA0_IE 0x00040000 73 # define PLX_LCL_DMA1_IE 0x00080000 74 # define PLX_LCL_DOORBELL_INT 0x00100000 75 # define PLX_LCL_DMA0_INT 0x00200000 76 # define PLX_LCL_DMA1_INT 0x00400000 77 # define PLX_LCL_BIST_INT 0x00800000 78 # define PLX_BM_DIRECT_ 0x01000000 79 # define PLX_BM_DMA0_ 0x02000000 80 # define PLX_BM_DMA1_ 0x04000000 81 # define PLX_BM_ABORT_ 0x08000000 82 # undef PLX_UNUSED /* 0x10000000 */ 83 # undef PLX_UNUSED /* 0x20000000 */ 84 # undef PLX_UNUSED /* 0x40000000 */ 85 # undef PLX_UNUSED /* 0x80000000 */ 86 87 #define PLX_MISC_CSR 0x6c /* EEPROM,PCI,User,Init Control/Status*/ 88 # define PLX_USEROUT 0x00010000 89 # define PLX_USERIN 0x00020000 90 # define PLX_EECK 0x01000000 91 # define PLX_EECS 0x02000000 92 # define PLX_EEWD 0x04000000 93 # define PLX_EERD 0x08000000 94 95 /* 96 * DMA registers. Offset is from local side 97 */ 98 #define PLX_DMA0_MODE 0x100 99 # define PLX_DMA_MODE_WIDTH32 0x00000003 100 # define PLX_DMA_MODE_WAITSTATES(X) ((X)<<2) 101 # define PLX_DMA_MODE_NOREADY 0x00000000 102 # define PLX_DMA_MODE_READY 0x00000040 103 # define PLX_DMA_MODE_NOBTERM 0x00000000 104 # define PLX_DMA_MODE_BTERM 0x00000080 105 # define PLX_DMA_MODE_NOBURST 0x00000000 106 # define PLX_DMA_MODE_BURST 0x00000100 107 # define PLX_DMA_MODE_NOCHAIN 0x00000000 108 # define PLX_DMA_MODE_CHAIN 0x00000200 109 # define PLX_DMA_MODE_DONE_IE 0x00000400 110 # define PLX_DMA_MODE_ADDR_HOLD 0x00000800 111 112 #define PLX_DMA0_PCI_ADDR 0x104 113 /* non-chaining mode PCI address */ 114 115 #define PLX_DMA0_LCL_ADDR 0x108 116 /* non-chaining mode local address */ 117 118 #define PLX_DMA0_SIZE 0x10C 119 /* non-chaining mode length */ 120 121 #define PLX_DMA0_DESCRIPTOR 0x110 122 # define PLX_DMA_DESC_EOC 0x00000002 123 # define PLX_DMA_DESC_TC_IE 0x00000004 124 # define PLX_DMA_DESC_TO_HOST 0x00000008 125 # define PLX_DMA_DESC_TO_BOARD 0x00000000 126 # define PLX_DMA_DESC_NEXTADDR 0xFFFFfff0 127 128 #define PLX_DMA1_MODE 0x114 129 #define PLX_DMA1_PCI_ADDR 0x118 130 #define PLX_DMA1_LCL_ADDR 0x11C 131 #define PLX_DMA1_SIZE 0x110 132 #define PLX_DMA1_DESCRIPTOR 0x124 133 134 #define PLX_DMA_CSR 0x128 135 # define PLX_DMA_CSR_0_ENABLE 0x00000001 136 # define PLX_DMA_CSR_0_START 0x00000002 137 # define PLX_DMA_CSR_0_ABORT 0x00000004 138 # define PLX_DMA_CSR_0_CLR_INTR 0x00000008 139 # define PLX_DMA_CSR_0_DONE 0x00000010 140 # define PLX_DMA_CSR_1_ENABLE 0x00000100 141 # define PLX_DMA_CSR_1_START 0x00000200 142 # define PLX_DMA_CSR_1_ABORT 0x00000400 143 # define PLX_DMA_CSR_1_CLR_INTR 0x00000800 144 # define PLX_DMA_CSR_1_DONE 0x00001000 145 146 #define PLX_DMA_ARB0 0x12C 147 # define PLX_DMA_ARB0_LATENCY_T 0x000000FF 148 # define PLX_DMA_ARB0_PAUSE_T 0x0000FF00 149 # define PLX_DMA_ARB0_LATENCY_EN 0x00010000 150 # define PLX_DMA_ARB0_PAUSE_EN 0x00020000 151 # define PLX_DMA_ARB0_BREQ_EN 0x00040000 152 # define PLX_DMA_ARB0_PRI 0x00180000 153 # define PLX_DMA_ARB0_PRI_ROUND 0x00000000 154 # define PLX_DMA_ARB0_PRI_0 0x00080000 155 # define PLX_DMA_ARB0_PRI_1 0x00100000 156 157 #define PLX_DMA_ARB1 0x130 158 /* Chan 0: FIFO DEPTH=16 */ 159 # define PLX_DMA_ARB1_0_P2L_LW_TRIG(X) ( ((X)&15) << 0 ) 160 # define PLX_DMA_ARB1_0_L2P_LR_TRIG(X) ( ((X)&15) << 4 ) 161 # define PLX_DMA_ARB1_0_L2P_PW_TRIG(X) ( ((X)&15) << 8 ) 162 # define PLX_DMA_ARB1_0_P2L_PR_TRIG(X) ( ((X)&15) << 12 ) 163 /* Chan 1: FIFO DEPTH=8 */ 164 # define PLX_DMA_ARB1_1_P2L_LW_TRIG(X) ( ((X)& 7) << 16 ) 165 # define PLX_DMA_ARB1_1_L2P_LR_TRIG(X) ( ((X)& 7) << 20 ) 166 # define PLX_DMA_ARB1_1_L2P_PW_TRIG(X) ( ((X)& 7) << 24 ) 167 # define PLX_DMA_ARB1_1_P2L_PR_TRIG(X) ( ((X)& 7) << 28 ) 168 169 typedef struct _dmachain 170 { 171 ulong pciaddr; 172 ulong lcladdr; 173 ulong len; 174 ulong next; 175 } DMACHAIN; 176