psc_i2c.lst

au1200下的boot代码

  73:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			return 0;
  74:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  75:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		// Write data
  76:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(stop && (i == (len - 1)))
  77:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		{
  78:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			if(stop == 1)
GAS LISTING /tmp/ccmjNVoP.s 			page 7


  79:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 				smb->txrx = *data | PSC_SMB_TXRX_STP;
  80:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			else
  81:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 				smb->txrx = *data | PSC_SMB_TXRX_RSR;
  82:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		}
  83:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		else
  84:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			smb->txrx = *data++;
  85:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	}
  86:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	
  87:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	// Wait transfer
  88:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	if(!i2c_wait_status(PSC_SMB_STS_TE, 1, I2C_CMD_TIMEOUT))
  89:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		return 0;
  90:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  91:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	// Check ack
  92:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	if (smb->evnt & (PSC_SMB_EVNT_DN | PSC_SMB_EVNT_AN | PSC_SMB_EVNT_AL))
  93:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		return 0;
  94:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  95:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
  96:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
 260              		.loc 1 96 0
 261              		.loc 1 72 0
 262 01ac 2F004010 		beq	$2,$0,$L34
 263 01b0 3400BF8F 		lw	$31,52($sp)
 264              	
 265              		.loc 1 76 0
 266 01b4 0300A012 		beq	$21,$0,$L25
 267 01b8 00000000 		nop
 268              	
 269 01bc 24009112 		beq	$20,$17,$L36
 270 01c0 00000000 		nop
 271              	
 272              	$L25:
 273              		.loc 1 84 0
 274 01c4 00000392 		lbu	$3,0($16)
 275 01c8 0000628E 		lw	$2,%lo(smb)($19)
 276 01cc 01001026 		addiu	$16,$16,1
 277 01d0 1C0043AC 		sw	$3,28($2)
 278              		.loc 1 69 0
 279 01d4 01003126 		addiu	$17,$17,1
 280              	$L38:
 281 01d8 2A103202 		slt	$2,$17,$18
 282              		.loc 1 72 0
 283              		.loc 1 69 0
 284 01dc F0FF4014 		bne	$2,$0,$L39
 285 01e0 00040424 		li	$4,1024			# 0x400
 286              	
 287              	$L33:
 288              		.loc 1 88 0
 289 01e4 01000524 		li	$5,1			# 0x1
 290 01e8 00020424 		li	$4,512			# 0x200
 291 01ec 0000000C 		jal	i2c_wait_status
 292 01f0 64000624 		li	$6,100			# 0x64
 293              	
 294              		.loc 1 89 0
 295              		.loc 1 88 0
 296 01f4 09004010 		beq	$2,$0,$L20
 297 01f8 21280000 		move	$5,$0
 298              	
GAS LISTING /tmp/ccmjNVoP.s 			page 8


 299              		.loc 1 92 0
 300 01fc 0000023C 		lui	$2,%hi(smb)
 301 0200 0000448C 		lw	$4,%lo(smb)($2)
 302 0204 0070033C 		li	$3,1879048192			# 0x70000000
 303 0208 1800828C 		lw	$2,24($4)
 304 020c 24104300 		and	$2,$2,$3
 305              		.loc 1 96 0
 306              		.loc 1 92 0
 307 0210 03004014 		bne	$2,$0,$L40
 308 0214 3400BF8F 		lw	$31,52($sp)
 309              	
 310              		.loc 1 95 0
 311 0218 01000524 		li	$5,1			# 0x1
 312              	$L20:
 313              		.loc 1 96 0
 314 021c 3400BF8F 		lw	$31,52($sp)
 315              	$L40:
 316 0220 3000BE8F 		lw	$fp,48($sp)
 317 0224 2C00B78F 		lw	$23,44($sp)
 318 0228 2800B68F 		lw	$22,40($sp)
 319 022c 2400B58F 		lw	$21,36($sp)
 320 0230 2000B48F 		lw	$20,32($sp)
 321 0234 1C00B38F 		lw	$19,28($sp)
 322 0238 1800B28F 		lw	$18,24($sp)
 323 023c 1400B18F 		lw	$17,20($sp)
 324 0240 1000B08F 		lw	$16,16($sp)
 325 0244 2110A000 		move	$2,$5
 326 0248 0800E003 		j	$31
 327 024c 3800BD27 		addiu	$sp,$sp,56
 328              	
 329              	$L36:
 330              		.loc 1 81 0
 331              		.loc 1 78 0
 332 0250 1300B612 		beq	$21,$22,$L37
 333 0254 0000638E 		lw	$3,%lo(smb)($19)
 334              	
 335              		.loc 1 81 0
 336 0258 00000292 		lbu	$2,0($16)
 337 025c 25105700 		or	$2,$2,$23
 338 0260 1C0062AC 		sw	$2,28($3)
 339              		.loc 1 69 0
 340 0264 76000008 		j	$L38
 341 0268 01003126 		addiu	$17,$17,1
 342              	
 343              	$L34:
 344              		.loc 1 96 0
 345 026c 3000BE8F 		lw	$fp,48($sp)
 346 0270 2C00B78F 		lw	$23,44($sp)
 347 0274 2800B68F 		lw	$22,40($sp)
 348 0278 2400B58F 		lw	$21,36($sp)
 349 027c 2000B48F 		lw	$20,32($sp)
 350 0280 1C00B38F 		lw	$19,28($sp)
 351 0284 1800B28F 		lw	$18,24($sp)
 352 0288 1400B18F 		lw	$17,20($sp)
 353 028c 1000B08F 		lw	$16,16($sp)
 354              		.loc 1 73 0
 355 0290 21280000 		move	$5,$0
GAS LISTING /tmp/ccmjNVoP.s 			page 9


 356              		.loc 1 96 0
 357 0294 2110A000 		move	$2,$5
 358 0298 0800E003 		j	$31
 359 029c 3800BD27 		addiu	$sp,$sp,56
 360              	
 361              	$L37:
 362              		.loc 1 79 0
 363 02a0 00000292 		lbu	$2,0($16)
 364 02a4 25105E00 		or	$2,$2,$fp
 365              		.loc 1 81 0
 366 02a8 1C0062AC 		sw	$2,28($3)
 367              		.loc 1 69 0
 368 02ac 76000008 		j	$L38
 369 02b0 01003126 		addiu	$17,$17,1
 370              	
 371              		.set	macro
 372              		.set	reorder
 373              	$LFE5:
 374              		.end	i2c_write_data
 375              		.align	2
 376              		.globl	i2cOpen
 377              		.ent	i2cOpen
 378              		.type	i2cOpen, @function
 379              	i2cOpen:
 380              	$LFB7:
  97:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  98:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static int i2c_read_data(uint8* data, int len)
  99:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
 100:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	int i;
 101:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 102:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	for(i = 0; i < len; i++)
 103:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	{
 104:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		// Write data
 105:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(i == (len - 1))
 106:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			smb->txrx = PSC_SMB_TXRX_STP;
 107:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		else
 108:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			smb->txrx = 0;
 109:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 110:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		// Wait fifo not empty
 111:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(!i2c_wait_status(PSC_SMB_STS_RE, 0, I2C_CMD_TIMEOUT))
 112:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			return 0;
 113:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 114:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		// read data
 115:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		*data++ = PSC_SMB_TXRX_AD_N(smb->txrx);
 116:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	}
 117:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 118:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
 119:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
 120:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 121:/mnt/hgfs/boot/booter/source/psc_i2c.c **** /* Public Functions */   
 122:/mnt/hgfs/boot/booter/source/psc_i2c.c **** int i2cOpen()
 123:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
 381              		.loc 1 123 0
 382              		.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
 383              		.mask	0x80010000,-4
 384              		.fmask	0x00000000,0
 385              		.set	noreorder
GAS LISTING /tmp/ccmjNVoP.s 			page 10


 386              		.set	nomacro
 387              		
 388 02b4 E8FFBD27 		addiu	$sp,$sp,-24
 389              	$LCFI20:
 390 02b8 1000B0AF 		sw	$16,16($sp)
 391              	$LCFI21:
 392 02bc 1400BFAF 		sw	$31,20($sp)
 393              	$LCFI22:
 124:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	/* Configure I2C clocks */
 125:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->freqctrl0 &= ~(SYS_FREQCTRL0_FRDIV1 | SYS_FREQCTRL0_FS1);
 394              		.loc 1 125 0
 395 02c0 0000023C 		lui	$2,%hi(sys)
 396 02c4 0400458C 		lw	$5,%lo(sys)($2)
 397 02c8 F0FF023C 		li	$2,-1048576			# 0xfffffffffff00000
 398 02cc FF0B4234 		ori	$2,$2,0xbff
 399 02d0 2000A38C 		lw	$3,32($5)
 126:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->freqctrl0 |= SYS_FREQCTRL0_FRDIV1_N(8) | SYS_FREQCTRL0_FE1;
 127:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #if (SMBUS_PSC_BASE == PSC0_PHYS_ADDR)
 128:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->clksrc &= ~(SYS_CLKSRC_ME0 | SYS_CLKSRC_DE0 | SYS_CLKSRC_CE0);
 129:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->clksrc |= SYS_CLKSRC_ME0_N(SYS_CLKSRC_MUX_FREQ1);
 130:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #else
 131:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->clksrc &= ~(SYS_CLKSRC_ME1 | SYS_CLKSRC_DE1 | SYS_CLKSRC_CE1);
 132:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->clksrc |= SYS_CLKSRC_ME1_N(SYS_CLKSRC_MUX_FREQ1);
 133:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #endif
 134:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	
 135:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 136:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	/* Configure I2C signals MUXings */
 137:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #if (SMBUS_PSC_BASE == PSC0_PHYS_ADDR)
 138:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->pinfunc &= ~SYS_PINFUNC_P0B;
 139:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #else
 140:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	sys->pinfunc = sys->pinfunc & (~SYS_PINFUNC_P1A) | SYS_PINFUNC_P1A_N(1);
 141:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #endif
 142:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 143:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	/* Configure SMBus Command Connection */
 144:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	DPRINTF("Configuring SMBus\n");
 145:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->psc.sel = PSC_SEL_PS_SMB | PSC_SEL_CLK_TOY;	// configure PSC
 400              		.loc 1 145 0
 401 02d4 0000103C 		lui	$16,%hi(smb)
 402 02d8 0000068E 		lw	$6,%lo(smb)($16)
 403              		.loc 1 125 0
 404 02dc 24186200 		and	$3,$3,$2
 405 02e0 2000A3AC 		sw	$3,32($5)
 406              		.loc 1 126 0
 407 02e4 2000A28C 		lw	$2,32($5)
 408              		.loc 1 140 0
 409 02e8 2000043C 		li	$4,2097152			# 0x200000
 410              		.loc 1 126 0
 411 02ec 00384234 		ori	$2,$2,0x3800
 412 02f0 2000A2AC 		sw	$2,32($5)
 413              		.loc 1 131 0
 414 02f4 2800A38C 		lw	$3,40($5)
 415 02f8 FFC1023C 		li	$2,-1040252928			# 0xffffffffc1ff0000
 416 02fc FFFF4234 		ori	$2,$2,0xffff
 417 0300 24186200 		and	$3,$3,$2
 418 0304 2800A3AC 		sw	$3,40($5)
 419              		.loc 1 132 0
 420 0308 2800A28C 		lw	$2,40($5)
GAS LISTING /tmp/ccmjNVoP.s 			page 11


 421 030c 0018033C 		li	$3,402653184			# 0x18000000
 422 0310 25104300 		or	$2,$2,$3
 423 0314 2800A2AC 		sw	$2,40($5)
 424              		.loc 1 140 0
 425 0318 2C00A38C 		lw	$3,44($5)
 426 031c 9FFF023C 		li	$2,-6356992			# 0xffffffffff9f0000
 427 0320 FFFF4234 		ori	$2,$2,0xffff
 428 0324 24186200 		and	$3,$3,$2
 429 0328 25186400 		or	$3,$3,$4
 430 032c 2C00A3AC 		sw	$3,44($5)
 431              		.loc 1 145 0
 432 0330 05000224 		li	$2,5			# 0x5
 146:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->psc.ctl = PSC_CTL_CE | PSC_CTL_EN;	// enable PSC
 433              		.loc 1 146 0
 434 0334 03000324 		li	$3,3			# 0x3
 435              		.loc 1 145 0
 436 0338 0000C2AC 		sw	$2,0($6)
 147:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	if(!i2c_wait_status(PSC_SMB_STS_SR, 1, I2C_OPEN_TIMEOUT))	// wait for PSC ready
 437              		.loc 1 147 0
 438 033c 01000424 		li	$4,1			# 0x1
 439              		.loc 1 146 0
 440 0340 0400C3AC 		sw	$3,4($6)
 441              		.loc 1 147 0
 442 0344 01000524 		li	$5,1			# 0x1
 443 0348 0000000C 		jal	i2c_wait_status
 444 034c 64000624 		li	$6,100			# 0x64
 445              	
 148:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		return 0;
 149:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 150:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->cfg = PSC_SMB_CFG_SDIV_N(2)	// clk / 8
 151:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_CFG_TRD_N(0)	// Tx FIFO threshold = 1
 152:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_CFG_RRD_N(0)	// Rx FIFO threshold = 1
 153:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_CFG_DD;		// Disable DDMA
 154:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 155:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->msk |= PSC_SMB_MSK_ALL;		// All Interrupts Masked
 156:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 157:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->tmr = PSC_SMB_TMR_CH_N(0x0F)	// Clock High hold time
 158:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_CL_N(0x0F)	// Clock Low hold time
 159:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_SU_N(0x0F)	// Start setup time
 160:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_SH_N(0x0F)	// Start hold time
 161:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_PU_N(0x0F)	// Stop setup time
 162:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_PS_N(0x0F)	// Stop->Start wait time
 163:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			| PSC_SMB_TMR_TH_N(0);	// Transmit Data hold time
 164:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
 165:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->cfg |= PSC_SMB_CFG_DE;		// Enable device
 166:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	if(!i2c_wait_status(PSC_SMB_STS_DR, 1, I2C_OPEN_TIMEOUT))	// wait for device ready
 446              		.loc 1 166 0
 447 0350 02000424 		li	$4,2			# 0x2
 448 0354 01000524 		li	$5,1			# 0x1
 449 0358 64000624 		li	$6,100			# 0x64
 450              		.loc 1 148 0
 451              		.loc 1 147 0
 452 035c 06004014 		bne	$2,$0,$L44
 453 0360 21180000 		move	$3,$0
 454              	
 167:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		return 0;
 168:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
GAS LISTING /tmp/ccmjNVoP.s 			page 12


 169:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
 170:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
 455              		.loc 1 170 0
 456 0364 1400BF8F 		lw	$31,20($sp)
 457 0368 1000B08F 		lw	$16,16($sp)
 458 036c 21106000 		move	$2,$3
 459 0370 0800E003 		j	$31
 460 0374 1800BD27 		addiu	$sp,$sp,24
 461              	
 462              	$L44:
 463              		.loc 1 150 0
 464 0378 0000078E 		lw	$7,%lo(smb)($16)
 465 037c 0008023C 		li	$2,134217728			# 0x8000000
 466 0380 00404234 		ori	$2,$2,0x4000
 467 0384 0800E2AC 		sw	$2,8($7)
 468              		.loc 1 155 0
 469 0388 0C00E38C 		lw	$3,12($7)
 470 038c 0170023C 		li	$2,1879113728			# 0x70010000
 471 0390 301B4234 		ori	$2,$2,0x1b30
 472 0394 25186200 		or	$3,$3,$2
 473              		.loc 1 157 0
 474 0398 F71E023C 		li	$2,519503872			# 0x1ef70000
 475 039c EFBD4234 		ori	$2,$2,0xbdef
 476              		.loc 1 155 0
 477 03a0 0C00E3AC 		sw	$3,12($7)
 478              		.loc 1 157 0
 479 03a4 2000E2AC 		sw	$2,32($7)
 480              		.loc 1 165 0
 481 03a8 0800E38C 		lw	$3,8($7)
 482 03ac 0004023C 		li	$2,67108864			# 0x4000000
 483 03b0 25186200 		or	$3,$3,$2
 484 03b4 0800E3AC 		sw	$3,8($7)
 485              		.loc 1 166 0
 486 03b8 0000000C 		jal	i2c_wait_status
 487 03bc 00000000 		nop
 488              	
 489              		.loc 1 170 0
 490 03c0 1400BF8F 		lw	$31,20($sp)
 491 03c4 1000B08F 		lw	$16,16($sp)
 492              		.loc 1 167 0
 493 03c8 2B180200 		sltu	$3,$0,$2
 494              		.loc 1 170 0
 495 03cc 21106000 		move	$2,$3
 496 03d0 0800E003 		j	$31
 497 03d4 1800BD27 		addiu	$sp,$sp,24