1 /*********************************************************************** 2 * 3 * Copyright 2001 MontaVista Software Inc. 4 * Author: jsun@mvista.com or jsun@junsun.net 5 * 6 * include/asm-mips/ddb5xxx/ddb5477.h 7 * DDB 5477 specific definitions and macros. 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 *********************************************************************** 15 */ 16 17 #ifndef __ASM_DDB5XXX_DDB5477_H 18 #define __ASM_DDB5XXX_DDB5477_H 19 20 #include <linux/config.h> 21 22 /* 23 * This contains macros that are specific to DDB5477 or renamed from 24 * DDB5476. 25 */ 26 27 /* 28 * renamed PADRs 29 */ 30 #define DDB_LCS0 DDB_DCS2 31 #define DDB_LCS1 DDB_DCS3 32 #define DDB_LCS2 DDB_DCS4 33 #define DDB_VRC5477 DDB_INTCS 34 35 /* 36 * New CPU interface registers 37 */ 38 #define DDB_INTCTRL0 0x0400 /* Interrupt Control 0 */ 39 #define DDB_INTCTRL1 0x0404 /* Interrupt Control 1 */ 40 #define DDB_INTCTRL2 0x0408 /* Interrupt Control 2 */ 41 #define DDB_INTCTRL3 0x040c /* Interrupt Control 3 */ 42 43 #define DDB_INT0STAT 0x0420 /* INT0 Status [R] */ 44 #define DDB_INT1STAT 0x0428 /* INT1 Status [R] */ 45 #define DDB_INT2STAT 0x0430 /* INT2 Status [R] */ 46 #define DDB_INT3STAT 0x0438 /* INT3 Status [R] */ 47 #define DDB_INT4STAT 0x0440 /* INT4 Status [R] */ 48 #define DDB_NMISTAT 0x0450 /* NMI Status [R] */ 49 50 #define DDB_INTCLR32 0x0468 /* Interrupt Clear */ 51 52 #define DDB_INTPPES0 0x0470 /* PCI0 Interrupt Control */ 53 #define DDB_INTPPES1 0x0478 /* PCI1 Interrupt Control */ 54 55 #undef DDB_CPUSTAT /* duplicate in Vrc-5477 */ 56 #define DDB_CPUSTAT 0x0480 /* CPU Status [R] */ 57 #define DDB_BUSCTRL 0x0488 /* Internal Bus Control */ 58 59 60 /* 61 * Timer registers 62 */ 63 #define DDB_REFCTRL_L DDB_T0CTRL 64 #define DDB_REFCTRL_H (DDB_T0CTRL+4) 65 #define DDB_REFCNTR DDB_T0CNTR 66 #define DDB_SPT0CTRL_L DDB_T1CTRL 67 #define DDB_SPT0CTRL_H (DDB_T1CTRL+4) 68 #define DDB_SPT1CTRL_L DDB_T2CTRL 69 #define DDB_SPT1CTRL_H (DDB_T2CTRL+4) 70 #define DDB_SPT1CNTR DDB_T1CTRL 71 #define DDB_WDTCTRL_L DDB_T3CTRL 72 #define DDB_WDTCTRL_H (DDB_T3CTRL+4) 73 #define DDB_WDTCNTR DDB_T3CNTR 74 75 /* 76 * DMA registers are moved. We don't care about it for now. TODO. 77 */ 78 79 /* 80 * BARs for ext PCI (PCI0) 81 */ 82 #undef DDB_BARC 83 #undef DDB_BARB 84 85 #define DDB_BARC0 0x0210 /* PCI0 Control */ 86 #define DDB_BARM010 0x0218 /* PCI0 SDRAM bank01 */ 87 #define DDB_BARM230 0x0220 /* PCI0 SDRAM bank23 */ 88 #define DDB_BAR00 0x0240 /* PCI0 LDCS0 */ 89 #define DDB_BAR10 0x0248 /* PCI0 LDCS1 */ 90 #define DDB_BAR20 0x0250 /* PCI0 LDCS2 */ 91 #define DDB_BAR30 0x0258 /* PCI0 LDCS3 */ 92 #define DDB_BAR40 0x0260 /* PCI0 LDCS4 */ 93 #define DDB_BAR50 0x0268 /* PCI0 LDCS5 */ 94 #define DDB_BARB0 0x0280 /* PCI0 BOOT */ 95 #define DDB_BARP00 0x0290 /* PCI0 for IOPCI Window0 */ 96 #define DDB_BARP10 0x0298 /* PCI0 for IOPCI Window1 */ 97 98 /* 99 * BARs for IOPIC (PCI1) 100 */ 101 #define DDB_BARC1 0x0610 /* PCI1 Control */ 102 #define DDB_BARM011 0x0618 /* PCI1 SDRAM bank01 */ 103 #define DDB_BARM231 0x0620 /* PCI1 SDRAM bank23 */ 104 #define DDB_BAR01 0x0640 /* PCI1 LDCS0 */ 105 #define DDB_BAR11 0x0648 /* PCI1 LDCS1 */ 106 #define DDB_BAR21 0x0650 /* PCI1 LDCS2 */ 107 #define DDB_BAR31 0x0658 /* PCI1 LDCS3 */ 108 #define DDB_BAR41 0x0660 /* PCI1 LDCS4 */ 109 #define DDB_BAR51 0x0668 /* PCI1 LDCS5 */ 110 #define DDB_BARB1 0x0680 /* PCI1 BOOT */ 111 #define DDB_BARP01 0x0690 /* PCI1 for ext PCI Window0 */ 112 #define DDB_BARP11 0x0698 /* PCI1 for ext PCI Window1 */ 113 114 /* 115 * Other registers for ext PCI (PCI0) 116 */ 117 #define DDB_PCIINIT00 0x02f0 /* PCI0 Initiator 0 */ 118 #define DDB_PCIINIT10 0x02f8 /* PCI0 Initiator 1 */ 119 120 #define DDB_PCISWP0 0x02b0 /* PCI0 Swap */ 121 #define DDB_PCIERR0 0x02b8 /* PCI0 Error */ 122 123 #define DDB_PCICTL0_L 0x02e0 /* PCI0 Control-L */ 124 #define DDB_PCICTL0_H 0x02e4 /* PCI0 Control-H */ 125 #define DDB_PCIARB0_L 0x02e8 /* PCI0 Arbitration-L */ 126 #define DDB_PCIARB0_H 0x02ec /* PCI0 Arbitration-H */ 127 128 /* 129 * Other registers for IOPCI (PCI1) 130 */ 131 #define DDB_IOPCIW0 0x00d0 /* PCI Address Window 0 [R/W] */ 132 #define DDB_IOPCIW1 0x00d8 /* PCI Address Window 1 [R/W] */ 133 134 #define DDB_PCIINIT01 0x06f0 /* PCI1 Initiator 0 */ 135 #define DDB_PCIINIT11 0x06f8 /* PCI1 Initiator 1 */ 136 137 #define DDB_PCISWP1 0x06b0 /* PCI1 Swap */ 138 #define DDB_PCIERR1 0x06b8 /* PCI1 Error */ 139 140 #define DDB_PCICTL1_L 0x06e0 /* PCI1 Control-L */ 141 #define DDB_PCICTL1_H 0x06e4 /* PCI1 Control-H */ 142 #define DDB_PCIARB1_L 0x06e8 /* PCI1 Arbitration-L */ 143 #define DDB_PCIARB1_H 0x06ec /* PCI1 Arbitration-H */ 144 145 /* 146 * Local Bus 147 */ 148 #define DDB_LCST0 0x0110 /* LB Chip Select Timing 0 */ 149 #define DDB_LCST1 0x0118 /* LB Chip Select Timing 1 */ 150 #undef DDB_LCST2 151 #define DDB_LCST2 0x0120 /* LB Chip Select Timing 2 */ 152 #undef DDB_LCST3 153 #undef DDB_LCST4 154 #undef DDB_LCST5 155 #undef DDB_LCST6 156 #undef DDB_LCST7 157 #undef DDB_LCST8 158 #define DDB_ERRADR 0x0150 /* Error Address Register */ 159 #define DDB_ERRCS 0x0160 160 #define DDB_BTM 0x0170 /* Boot Time Mode value */ 161 162 /* 163 * MISC registers 164 */ 165 #define DDB_GIUFUNSEL 0x4040 /* select dual-func pins */ 166 #define DDB_PIBMISC 0x0750 /* USB buffer enable / power saving */ 167 168 /* 169 * Memory map (physical address) 170 * 171 * Note most of the following address must be properly aligned by the 172 * corresponding size. For example, if PCI_IO_SIZE is 16MB, then 173 * PCI_IO_BASE must be aligned along 16MB boundary. 174 */ 175 176 /* the actual ram size is detected at run-time */ 177 #define DDB_SDRAM_BASE 0x00000000 178 #define DDB_MAX_SDRAM_SIZE 0x08000000 /* less than 128MB */ 179 180 #define DDB_PCI0_MEM_BASE 0x08000000 181 #define DDB_PCI0_MEM_SIZE 0x08000000 /* 128 MB */ 182 183 #define DDB_PCI1_MEM_BASE 0x10000000 184 #define DDB_PCI1_MEM_SIZE 0x08000000 /* 128 MB */ 185 186 #define DDB_PCI0_CONFIG_BASE 0x18000000 187 #define DDB_PCI0_CONFIG_SIZE 0x01000000 /* 16 MB */ 188 189 #define DDB_PCI1_CONFIG_BASE 0x19000000 190 #define DDB_PCI1_CONFIG_SIZE 0x01000000 /* 16 MB */ 191 192 #define DDB_PCI_IO_BASE 0x1a000000 /* we concatenate two IOs */ 193 #define DDB_PCI0_IO_BASE 0x1a000000 194 #define DDB_PCI0_IO_SIZE 0x01000000 /* 16 MB */ 195 #define DDB_PCI1_IO_BASE 0x1b000000 196 #define DDB_PCI1_IO_SIZE 0x01000000 /* 16 MB */ 197 198 #define DDB_LCS0_BASE 0x1c000000 /* flash memory */ 199 #define DDB_LCS0_SIZE 0x01000000 /* 16 MB */ 200 201 #define DDB_LCS1_BASE 0x1d000000 /* misc */ 202 #define DDB_LCS1_SIZE 0x01000000 /* 16 MB */ 203 204 #define DDB_LCS2_BASE 0x1e000000 /* Mezzanine */ 205 #define DDB_LCS2_SIZE 0x01000000 /* 16 MB */ 206 207 #define DDB_VRC5477_BASE 0x1fa00000 /* VRC5477 control regs */ 208 #define DDB_VRC5477_SIZE 0x00200000 /* 2MB */ 209 210 #define DDB_BOOTCS_BASE 0x1fc00000 /* Boot ROM / EPROM /Flash */ 211 #define DDB_BOOTCS_SIZE 0x00200000 /* 2 MB - doc says 4MB */ 212 213 #define DDB_LED DDB_LCS1_BASE + 0x10000 214 215 216 /* 217 * DDB5477 specific functions 218 */ 219 #ifndef __ASSEMBLY__ 220 extern void ddb5477_irq_setup(void); 221 222 /* route irq to cpu int pin */ 223 extern void ll_vrc5477_irq_route(int vrc5477_irq, int ip); 224 225 /* low-level routine for enabling vrc5477 irq, bypassing high-level */ 226 extern void ll_vrc5477_irq_enable(int vrc5477_irq); 227 extern void ll_vrc5477_irq_disable(int vrc5477_irq); 228 #endif /* !__ASSEMBLY__ */ 229 230 /* PCI intr ack share PCIW0 with PCI IO */ 231 #define DDB_PCI_IACK_BASE DDB_PCI_IO_BASE 232 233 /* 234 * Interrupt mapping 235 * 236 * We have three interrupt controllers: 237 * 238 * . CPU itself - 8 sources 239 * . i8259 - 16 sources 240 * . vrc5477 - 32 sources 241 * 242 * They connected as follows: 243 * all vrc5477 interrupts are routed to cpu IP2 (by software setting) 244 * all i8359 are routed to INTC in vrc5477 (by hardware connection) 245 * 246 * All VRC5477 PCI interrupts are level-triggered (no ack needed). 247 * All PCI irq but INTC are active low. 248 */ 249 250 /* 251 * irq number block assignment 252 */ 253 254 #define NUM_CPU_IRQ 8 255 #define NUM_I8259_IRQ 16 256 #define NUM_VRC5477_IRQ 32 257 258 #define DDB_IRQ_BASE 0 259 260 #define I8259_IRQ_BASE DDB_IRQ_BASE 261 #define VRC5477_IRQ_BASE (I8259_IRQ_BASE + NUM_I8259_IRQ) 262 #define CPU_IRQ_BASE (VRC5477_IRQ_BASE + NUM_VRC5477_IRQ) 263 264 /* 265 * vrc5477 irq defs 266 */ 267 268 #define VRC5477_IRQ_CPCE (0 + VRC5477_IRQ_BASE) /* cpu parity error */ 269 #define VRC5477_IRQ_CNTD (1 + VRC5477_IRQ_BASE) /* cpu no target */ 270 #define VRC5477_IRQ_I2C (2 + VRC5477_IRQ_BASE) /* I2C */ 271 #define VRC5477_IRQ_DMA (3 + VRC5477_IRQ_BASE) /* DMA */ 272 #define VRC5477_IRQ_UART0 (4 + VRC5477_IRQ_BASE) 273 #define VRC5477_IRQ_WDOG (5 + VRC5477_IRQ_BASE) /* watchdog timer */ 274 #define VRC5477_IRQ_SPT1 (6 + VRC5477_IRQ_BASE) /* special purpose timer 1 */ 275 #define VRC5477_IRQ_LBRT (7 + VRC5477_IRQ_BASE) /* local bus read timeout */ 276 #define VRC5477_IRQ_INTA (8 + VRC5477_IRQ_BASE) /* PCI INT #A */ 277 #define VRC5477_IRQ_INTB (9 + VRC5477_IRQ_BASE) /* PCI INT #B */ 278 #define VRC5477_IRQ_INTC (10 + VRC5477_IRQ_BASE) /* PCI INT #C */ 279 #define VRC5477_IRQ_INTD (11 + VRC5477_IRQ_BASE) /* PCI INT #D */ 280 #define VRC5477_IRQ_INTE (12 + VRC5477_IRQ_BASE) /* PCI INT #E */ 281 #define VRC5477_IRQ_RESERVED_13 (13 + VRC5477_IRQ_BASE) /* reserved */ 282 #define VRC5477_IRQ_PCIS (14 + VRC5477_IRQ_BASE) /* PCI SERR # */ 283 #define VRC5477_IRQ_PCI (15 + VRC5477_IRQ_BASE) /* PCI internal error */ 284 #define VRC5477_IRQ_IOPCI_INTA (16 + VRC5477_IRQ_BASE) /* USB-H */ 285 #define VRC5477_IRQ_IOPCI_INTB (17 + VRC5477_IRQ_BASE) /* USB-P */ 286 #define VRC5477_IRQ_IOPCI_INTC (18 + VRC5477_IRQ_BASE) /* AC97 */ 287 #define VRC5477_IRQ_IOPCI_INTD (19 + VRC5477_IRQ_BASE) /* Reserved */ 288 #define VRC5477_IRQ_UART1 (20 + VRC5477_IRQ_BASE) 289 #define VRC5477_IRQ_SPT0 (21 + VRC5477_IRQ_BASE) /* special purpose timer 0 */ 290 #define VRC5477_IRQ_GPT0 (22 + VRC5477_IRQ_BASE) /* general purpose timer 0 */ 291 #define VRC5477_IRQ_GPT1 (23 + VRC5477_IRQ_BASE) /* general purpose timer 1 */ 292 #define VRC5477_IRQ_GPT2 (24 + VRC5477_IRQ_BASE) /* general purpose timer 2 */ 293 #define VRC5477_IRQ_GPT3 (25 + VRC5477_IRQ_BASE) /* general purpose timer 3 */ 294 #define VRC5477_IRQ_GPIO (26 + VRC5477_IRQ_BASE) 295 #define VRC5477_IRQ_SIO0 (27 + VRC5477_IRQ_BASE) 296 #define VRC5477_IRQ_SIO1 (28 + VRC5477_IRQ_BASE) 297 #define VRC5477_IRQ_RESERVED_29 (29 + VRC5477_IRQ_BASE) /* reserved */ 298 #define VRC5477_IRQ_IOPCISERR (30 + VRC5477_IRQ_BASE) /* IO PCI SERR # */ 299 #define VRC5477_IRQ_IOPCI (31 + VRC5477_IRQ_BASE) 300 301 /* 302 * i2859 irq assignment 303 */ 304 #define I8259_IRQ_RESERVED_0 (0 + I8259_IRQ_BASE) 305 #define I8259_IRQ_KEYBOARD (1 + I8259_IRQ_BASE) /* M1543 default */ 306 #define I8259_IRQ_CASCADE (2 + I8259_IRQ_BASE) 307 #define I8259_IRQ_UART_B (3 + I8259_IRQ_BASE) /* M1543 default, may conflict with RTC according to schematic diagram */ 308 #define I8259_IRQ_UART_A (4 + I8259_IRQ_BASE) /* M1543 default */ 309 #define I8259_IRQ_PARALLEL (5 + I8259_IRQ_BASE) /* M1543 default */ 310 #define I8259_IRQ_RESERVED_6 (6 + I8259_IRQ_BASE) 311 #define I8259_IRQ_RESERVED_7 (7 + I8259_IRQ_BASE) 312 #define I8259_IRQ_RTC (8 + I8259_IRQ_BASE) /* who set this? */ 313 #define I8259_IRQ_USB (9 + I8259_IRQ_BASE) /* ddb_setup */ 314 #define I8259_IRQ_PMU (10 + I8259_IRQ_BASE) /* ddb_setup */ 315 #define I8259_IRQ_RESERVED_11 (11 + I8259_IRQ_BASE) 316 #define I8259_IRQ_RESERVED_12 (12 + I8259_IRQ_BASE) /* m1543_irq_setup */ 317 #define I8259_IRQ_RESERVED_13 (13 + I8259_IRQ_BASE) 318 #define I8259_IRQ_HDC1 (14 + I8259_IRQ_BASE) /* default and ddb_setup */ 319 #define I8259_IRQ_HDC2 (15 + I8259_IRQ_BASE) /* default */ 320 321 322 /* 323 * misc 324 */ 325 #define VRC5477_I8259_CASCADE (VRC5477_IRQ_INTC - VRC5477_IRQ_BASE) 326 #define CPU_VRC5477_CASCADE 2 327 328 /* 329 * debug routines 330 */ 331 #ifndef __ASSEMBLY__ 332 #if defined(CONFIG_RUNTIME_DEBUG) 333 extern void vrc5477_show_pdar_regs(void); 334 extern void vrc5477_show_pci_regs(void); 335 extern void vrc5477_show_bar_regs(void); 336 extern void vrc5477_show_int_regs(void); 337 extern void vrc5477_show_all_regs(void); 338 #endif 339 340 /* 341 * RAM size 342 */ 343 extern int board_ram_size; 344 #endif /* !__ASSEMBLY__ */ 345 346 #endif /* __ASM_DDB5XXX_DDB5477_H */ 347