nand.lst

au1200下的boot代码

 199              		.loc 1 96 0
 200              		.loc 1 42 0
 201 0124 4400A210 		beq	$5,$2,$L53
 202 0128 1000023C 		li	$2,1048576			# 0x100000
 203              	
 204 012c A600A228 		slt	$2,$5,166
 205 0130 33004014 		bne	$2,$0,$L45
 206 0134 A3000224 		li	$2,163			# 0xa3
 207              	
 208 0138 AA000224 		li	$2,170			# 0xaa
 209              		.loc 1 78 0
 210              		.loc 1 42 0
 211 013c 5900A210 		beq	$5,$2,$L54
 212 0140 0200023C 		li	$2,131072			# 0x20000
 213              	
 214 0144 AC000224 		li	$2,172			# 0xac
 215 0148 5C00A210 		beq	$5,$2,$L55
 216 014c 00000000 		nop
 217              	
 218              	$L34:
 219              		.loc 1 99 0
 220 0150 0000023C 		lui	$2,%hi(nand_device)
 221              		.loc 1 102 0
 222 0154 21200000 		move	$4,$0
 223              		.loc 1 100 0
 224 0158 04004324 		addiu	$3,$2,%lo(nand_device)
 225              		.loc 1 99 0
 226 015c 040040AC 		sw	$0,%lo(nand_device)($2)
 227              		.loc 1 106 0
 228 0160 21108000 		move	$2,$4
 229              		.loc 1 101 0
 230 0164 080060AC 		sw	$0,8($3)
GAS LISTING /tmp/cc4NTrNa.s 			page 7


 231              		.loc 1 100 0
 232              		.loc 1 106 0
 233 0168 0800E003 		j	$31
 234 016c 040060AC 		sw	$0,4($3)
 235              	
 236              	$L39:
 237              		.loc 1 76 0
 238              		.loc 1 42 0
 239 0170 4B00A210 		beq	$5,$2,$L27
 240 0174 0000043C 		lui	$4,%hi(nand_device)
 241              	
 242 0178 DB00A228 		slt	$2,$5,219
 243 017c 2A004014 		bne	$2,$0,$L46
 244 0180 D5000224 		li	$2,213			# 0xd5
 245              	
 246 0184 DC000224 		li	$2,220			# 0xdc
 247              		.loc 1 84 0
 248              		.loc 1 42 0
 249 0188 4D00A210 		beq	$5,$2,$L56
 250 018c 0400023C 		li	$2,262144			# 0x40000
 251              	
 252 0190 F1000224 		li	$2,241			# 0xf1
 253 0194 EEFFA214 		bne	$5,$2,$L34
 254 0198 00000000 		nop
 255              	
 256              	$L49:
 257              		.loc 1 72 0
 258 019c 0100023C 		li	$2,65536			# 0x10000
 259              		.loc 1 71 0
 260 01a0 04008524 		addiu	$5,$4,%lo(nand_device)
 261              		.loc 1 94 0
 262 01a4 08000324 		li	$3,8			# 0x8
 263              		.loc 1 96 0
 264 01a8 0800A2AC 		sw	$2,8($5)
 265              		.loc 1 94 0
 266 01ac 040083AC 		sw	$3,%lo(nand_device)($4)
 267              		.loc 1 95 0
 268 01b0 00080224 		li	$2,2048			# 0x800
 269              	$L48:
 270              		.loc 1 105 0
 271 01b4 01000424 		li	$4,1			# 0x1
 272              		.loc 1 95 0
 273 01b8 41000008 		j	$L14
 274 01bc 0400A2AC 		sw	$2,4($5)
 275              	
 276              	$L36:
 277              		.loc 1 58 0
 278              		.loc 1 42 0
 279 01c0 2600A210 		beq	$5,$2,$L57
 280 01c4 0000043C 		lui	$4,%hi(nand_device)
 281              	
 282 01c8 7700A228 		slt	$2,$5,119
 283 01cc 2A004014 		bne	$2,$0,$L47
 284 01d0 75000224 		li	$2,117			# 0x75
 285              	
 286 01d4 88FFA224 		addiu	$2,$5,-120
 287 01d8 0200422C 		sltu	$2,$2,2
GAS LISTING /tmp/cc4NTrNa.s 			page 8


 288 01dc DCFF4010 		beq	$2,$0,$L34
 289 01e0 00000000 		nop
 290              	
 291              		.loc 1 66 0
 292 01e4 0400023C 		li	$2,262144			# 0x40000
 293              		.loc 1 65 0
 294 01e8 04008524 		addiu	$5,$4,%lo(nand_device)
 295              		.loc 1 54 0
 296 01ec 0800A2AC 		sw	$2,8($5)
 297              		.loc 1 52 0
 298 01f0 08000324 		li	$3,8			# 0x8
 299              		.loc 1 53 0
 300 01f4 00020224 		li	$2,512			# 0x200
 301              		.loc 1 52 0
 302 01f8 3F000008 		j	$L43
 303 01fc 040083AC 		sw	$3,%lo(nand_device)($4)
 304              	
 305              	$L45:
 306              		.loc 1 42 0
 307 0200 D3FFA214 		bne	$5,$2,$L34
 308 0204 00000000 		nop
 309              	
 310              		.loc 1 88 0
 311 0208 0000043C 		lui	$4,%hi(nand_device)
 312              	$L52:
 313              		.loc 1 90 0
 314 020c 0800023C 		li	$2,524288			# 0x80000
 315              		.loc 1 89 0
 316 0210 04008524 		addiu	$5,$4,%lo(nand_device)
 317              		.loc 1 96 0
 318 0214 0800A2AC 		sw	$2,8($5)
 319              		.loc 1 94 0
 320 0218 08000324 		li	$3,8			# 0x8
 321              		.loc 1 95 0
 322 021c 00080224 		li	$2,2048			# 0x800
 323              		.loc 1 94 0
 324 0220 6D000008 		j	$L48
 325 0224 040083AC 		sw	$3,%lo(nand_device)($4)
 326              	
 327              	$L46:
 328              		.loc 1 42 0
 329 0228 C9FFA214 		bne	$5,$2,$L34
 330 022c 00000000 		nop
 331              	
 332              		.loc 1 94 0
 333 0230 0000043C 		lui	$4,%hi(nand_device)
 334              		.loc 1 96 0
 335 0234 1000023C 		li	$2,1048576			# 0x100000
 336              	$L53:
 337              		.loc 1 95 0
 338 0238 04008524 		addiu	$5,$4,%lo(nand_device)
 339              		.loc 1 96 0
 340 023c 0800A2AC 		sw	$2,8($5)
 341              		.loc 1 94 0
 342 0240 08000324 		li	$3,8			# 0x8
 343              		.loc 1 95 0
 344 0244 00080224 		li	$2,2048			# 0x800
GAS LISTING /tmp/cc4NTrNa.s 			page 9


 345              		.loc 1 94 0
 346 0248 6D000008 		j	$L48
 347 024c 040083AC 		sw	$3,%lo(nand_device)($4)
 348              	
 349              	$L37:
 350              		.loc 1 42 0
 351 0250 BFFFA214 		bne	$5,$2,$L34
 352 0254 00000000 		nop
 353              	
 354              		.loc 1 58 0
 355 0258 0000043C 		lui	$4,%hi(nand_device)
 356              	$L57:
 357              		.loc 1 60 0
 358 025c 0200023C 		li	$2,131072			# 0x20000
 359              		.loc 1 59 0
 360 0260 04008524 		addiu	$5,$4,%lo(nand_device)
 361              		.loc 1 54 0
 362 0264 0800A2AC 		sw	$2,8($5)
 363              		.loc 1 52 0
 364 0268 08000324 		li	$3,8			# 0x8
 365              		.loc 1 53 0
 366 026c 00020224 		li	$2,512			# 0x200
 367              		.loc 1 52 0
 368 0270 3F000008 		j	$L43
 369 0274 040083AC 		sw	$3,%lo(nand_device)($4)
 370              	
 371              	$L47:
 372              		.loc 1 42 0
 373 0278 B5FFA214 		bne	$5,$2,$L34
 374 027c 00000000 		nop
 375              	
 376              		.loc 1 52 0
 377 0280 0000043C 		lui	$4,%hi(nand_device)
 378              		.loc 1 54 0
 379 0284 0100023C 		li	$2,65536			# 0x10000
 380              	$L51:
 381              		.loc 1 53 0
 382 0288 04008524 		addiu	$5,$4,%lo(nand_device)
 383              		.loc 1 54 0
 384 028c 0800A2AC 		sw	$2,8($5)
 385              		.loc 1 52 0
 386 0290 08000324 		li	$3,8			# 0x8
 387              		.loc 1 53 0
 388 0294 00020224 		li	$2,512			# 0x200
 389              		.loc 1 52 0
 390 0298 3F000008 		j	$L43
 391 029c 040083AC 		sw	$3,%lo(nand_device)($4)
 392              	
 393              	$L27:
 394              		.loc 1 78 0
 395 02a0 0200023C 		li	$2,131072			# 0x20000
 396              	$L54:
 397              		.loc 1 77 0
 398 02a4 04008524 		addiu	$5,$4,%lo(nand_device)
 399              		.loc 1 96 0
 400 02a8 0800A2AC 		sw	$2,8($5)
 401              		.loc 1 94 0
GAS LISTING /tmp/cc4NTrNa.s 			page 10


 402 02ac 08000324 		li	$3,8			# 0x8
 403              		.loc 1 95 0
 404 02b0 00080224 		li	$2,2048			# 0x800
 405              		.loc 1 94 0
 406 02b4 6D000008 		j	$L48
 407 02b8 040083AC 		sw	$3,%lo(nand_device)($4)
 408              	
 409              	$L55:
 410              		.loc 1 84 0
 411 02bc 0400023C 		li	$2,262144			# 0x40000
 412              	$L56:
 413              		.loc 1 83 0
 414 02c0 04008524 		addiu	$5,$4,%lo(nand_device)
 415              		.loc 1 96 0
 416 02c4 0800A2AC 		sw	$2,8($5)
 417              		.loc 1 94 0
 418 02c8 08000324 		li	$3,8			# 0x8
 419              		.loc 1 95 0
 420 02cc 00080224 		li	$2,2048			# 0x800
 421              		.loc 1 94 0
 422 02d0 6D000008 		j	$L48
 423 02d4 040083AC 		sw	$3,%lo(nand_device)($4)
 424              	
 425              		.set	macro
 426              		.set	reorder
 427              	$LFE4:
 428              		.end	nand_load_device
 429              		.align	2
 430              		.globl	nand_config
 431              		.ent	nand_config
 432              		.type	nand_config, @function
 433              	nand_config:
 434              	$LFB5:
 107:/mnt/hgfs/boot/booter/source/nand.c **** 
 108:/mnt/hgfs/boot/booter/source/nand.c **** /*
 109:/mnt/hgfs/boot/booter/source/nand.c **** Nand config sets device type and width.  Timings does not reflect absolute min values for a
 110:/mnt/hgfs/boot/booter/source/nand.c **** Typical NAND device.  NAND Support exists on NANDCS0 and NANDCS1 only.
 111:/mnt/hgfs/boot/booter/source/nand.c **** */
 112:/mnt/hgfs/boot/booter/source/nand.c **** void nand_config()
 113:/mnt/hgfs/boot/booter/source/nand.c **** {
 435              		.loc 1 113 0
 436              		.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
 437              		.mask	0x80000000,-8
 438              		.fmask	0x00000000,0
 439              		.set	noreorder
 440              		.set	nomacro
 441              		
 442 02d8 E8FFBD27 		addiu	$sp,$sp,-24
 443              	$LCFI0:
 114:/mnt/hgfs/boot/booter/source/nand.c ****     //NAND devices requires GPIO ouput High
 115:/mnt/hgfs/boot/booter/source/nand.c ****     gpioWrite(NAND_CE0, 1);
 444              		.loc 1 115 0
 445 02dc 15000424 		li	$4,21			# 0x15
 446              		.loc 1 113 0
 447 02e0 1000BFAF 		sw	$31,16($sp)
 448              	$LCFI1:
 449              		.loc 1 115 0
GAS LISTING /tmp/cc4NTrNa.s 			page 11


 450 02e4 0000000C 		jal	gpioWrite
 451 02e8 01000524 		li	$5,1			# 0x1
 452              	
 116:/mnt/hgfs/boot/booter/source/nand.c ****     gpioWrite(NAND_CE1, 1);
 453              		.loc 1 116 0
 454 02ec 14000424 		li	$4,20			# 0x14
 455 02f0 0000000C 		jal	gpioWrite
 456 02f4 01000524 		li	$5,1			# 0x1
 457              	
 117:/mnt/hgfs/boot/booter/source/nand.c **** 
 118:/mnt/hgfs/boot/booter/source/nand.c ****     //Map physical address to TLB virtual address
 119:/mnt/hgfs/boot/booter/source/nand.c ****     nand_virtual_address = mapPhysicalAddress (NAND_PHYS_ADDR, NAND_ADDR_SPACE_SIZE, 0);
 458              		.loc 1 119 0
 459 02f8 0020043C 		li	$4,536870912			# 0x20000000
 460 02fc 21280000 		move	$5,$0
 461 0300 FF030624 		li	$6,1023			# 0x3ff
 462 0304 0000000C 		jal	mapPhysicalAddress
 463 0308 21380000 		move	$7,$0
 464              	
 465 030c 0000033C 		lui	$3,%hi(nand_virtual_address)
 120:/mnt/hgfs/boot/booter/source/nand.c **** 
 121:/mnt/hgfs/boot/booter/source/nand.c ****     //Configure Static Bus
 122:/mnt/hgfs/boot/booter/source/nand.c ****     NAND_SB_REG_CTRL   = NAND_CTRL_INTERRUPT;
 466              		.loc 1 122 0
 467 0310 00B4093C 		li	$9,-1275068416			# 0xffffffffb4000000
 468              		.loc 1 119 0
 469 0314 000062AC 		sw	$2,%lo(nand_virtual_address)($3)
 123:/mnt/hgfs/boot/booter/source/nand.c ****     NAND_SB_REG_CONFIG = SMC_NAND | SMC_NAND_WIDTH(1);
 470              		.loc 1 123 0
 471 0318 4000023C 		li	$2,4194304			# 0x400000
 472              		.loc 1 122 0
 473 031c 00112A35 		ori	$10,$9,0x1100
 474              		.loc 1 123 0
 475 0320 10102B35 		ori	$11,$9,0x1010
 476 0324 05004234 		ori	$2,$2,0x5
 477              		.loc 1 122 0
 478 0328 00010824 		li	$8,256			# 0x100
 479 032c 000048AD 		sw	$8,0($10)
 480              		.loc 1 123 0
 481 0330 000062AD 		sw	$2,0($11)
 124:/mnt/hgfs/boot/booter/source/nand.c ****     NAND_SB_REG_TIMING = NAND_TIMING;
 125:/mnt/hgfs/boot/booter/source/nand.c ****     NAND_SB_REG_ADDR   = NAND_SB_ENABLE | NAND_SB_CSBA(NAND_PHYS_ADDR) | NAND_SB_CSMASK(NAND_ADDR_S
 482              		.loc 1 125 0
 483 0334 0012023C 		li	$2,301989888			# 0x12000000
 484 0338 18102C35 		ori	$12,$9,0x1018
 485              		.loc 1 124 0
 486 033c 74770324 		li	$3,30580			# 0x7774
 126:/mnt/hgfs/boot/booter/source/nand.c **** 
 127:/mnt/hgfs/boot/booter/source/nand.c ****     //Enable interrupt for Nand Ready/Not Busy signal
 128:/mnt/hgfs/boot/booter/source/nand.c ****     nand_irq_fired = 0;
 129:/mnt/hgfs/boot/booter/source/nand.c **** 
 130:/mnt/hgfs/boot/booter/source/nand.c ****     cpuIrqEnable(NAND_IRQ_ID, NAND_POLARITY, (void *)nand_irq_handler, 0);
 487              		.loc 1 130 0