uart.lst

au1200下的boot代码

 250:/mnt/hgfs/boot/booter/source/uart.c **** 			break;
 251:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 252:/mnt/hgfs/boot/booter/source/uart.c **** }
 253:/mnt/hgfs/boot/booter/source/uart.c **** 
 254:/mnt/hgfs/boot/booter/source/uart.c **** /********************************************************************/
 255:/mnt/hgfs/boot/booter/source/uart.c **** void
 256:/mnt/hgfs/boot/booter/source/uart.c **** uartInit (int uartNumber, int baud)
 257:/mnt/hgfs/boot/booter/source/uart.c **** {
 258:/mnt/hgfs/boot/booter/source/uart.c **** 	UART_t *p;
 259:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 clkdiv;
 260:/mnt/hgfs/boot/booter/source/uart.c **** 	phys_t physAddr;
 261:/mnt/hgfs/boot/booter/source/uart.c **** 
 262:/mnt/hgfs/boot/booter/source/uart.c **** 	/* Make sure not in use already */
GAS LISTING /tmp/cc4XVykA.s 			page 6


 263:/mnt/hgfs/boot/booter/source/uart.c **** 	if ((uartNumber < 0) || (uartNumber >= MAX_UARTS))
 264:/mnt/hgfs/boot/booter/source/uart.c **** 		return;
 265:/mnt/hgfs/boot/booter/source/uart.c **** 
 266:/mnt/hgfs/boot/booter/source/uart.c **** 	if (uarts[uartNumber].uart != NULL)
 267:/mnt/hgfs/boot/booter/source/uart.c **** 		return;
 268:/mnt/hgfs/boot/booter/source/uart.c **** 
 269:/mnt/hgfs/boot/booter/source/uart.c **** 	/* get the system parameter area */
 270:/mnt/hgfs/boot/booter/source/uart.c **** 	sys = (AU1X00_SYS *)
 271:/mnt/hgfs/boot/booter/source/uart.c **** 		mapPhysicalAddress(SYS_PHYS_ADDR, sizeof(AU1X00_SYS), 0);
 272:/mnt/hgfs/boot/booter/source/uart.c **** 
 273:/mnt/hgfs/boot/booter/source/uart.c **** 	/* Pointer to master structure */
 274:/mnt/hgfs/boot/booter/source/uart.c **** 	p = &uarts[uartNumber];
 275:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uartNumber = uartNumber;
 276:/mnt/hgfs/boot/booter/source/uart.c **** 
 277:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART0_PHYS_ADDR
 278:/mnt/hgfs/boot/booter/source/uart.c **** 	if (uartNumber == 0)
 279:/mnt/hgfs/boot/booter/source/uart.c **** 	{
 280:/mnt/hgfs/boot/booter/source/uart.c **** 		physAddr = UART0_PHYS_ADDR;
 281:/mnt/hgfs/boot/booter/source/uart.c **** 		p->irq = IRQ_UART0;
 282:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 283:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 284:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART1_PHYS_ADDR
 285:/mnt/hgfs/boot/booter/source/uart.c **** 	if (uartNumber == 1)
 286:/mnt/hgfs/boot/booter/source/uart.c **** 	{
 287:/mnt/hgfs/boot/booter/source/uart.c **** 		physAddr = UART1_PHYS_ADDR;
 288:/mnt/hgfs/boot/booter/source/uart.c **** 		p->irq = IRQ_UART1;
 289:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 290:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 291:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART2_PHYS_ADDR
 292:/mnt/hgfs/boot/booter/source/uart.c **** 	if (uartNumber == 2)
 293:/mnt/hgfs/boot/booter/source/uart.c **** 	{
 294:/mnt/hgfs/boot/booter/source/uart.c **** 		physAddr = UART2_PHYS_ADDR;
 295:/mnt/hgfs/boot/booter/source/uart.c **** 		p->irq = IRQ_UART2;
 296:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 297:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 298:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART3_PHYS_ADDR
 299:/mnt/hgfs/boot/booter/source/uart.c **** 	if (uartNumber == 3)
 300:/mnt/hgfs/boot/booter/source/uart.c **** 	{
 301:/mnt/hgfs/boot/booter/source/uart.c **** 		physAddr = UART3_PHYS_ADDR;
 302:/mnt/hgfs/boot/booter/source/uart.c **** 		p->irq = IRQ_UART3;
 303:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 304:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 305:/mnt/hgfs/boot/booter/source/uart.c **** 
 306:/mnt/hgfs/boot/booter/source/uart.c **** 	p->nextrx = p->lastrx = p->sizerx = 0;
 307:/mnt/hgfs/boot/booter/source/uart.c **** 	p->nexttx = p->lasttx = p->sizetx = 0;
 308:/mnt/hgfs/boot/booter/source/uart.c **** 
 309:/mnt/hgfs/boot/booter/source/uart.c **** 	/* Now map the peripheral */
 310:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart = (AU1X00_UART *)mapPhysicalAddress(physAddr, sizeof(AU1X00_UART), 0);
 311:/mnt/hgfs/boot/booter/source/uart.c **** 
 312:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->enable = UART_ENABLE_CE;
 313:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 314:/mnt/hgfs/boot/booter/source/uart.c **** 
 315:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->enable = UART_ENABLE_CE | UART_ENABLE_E;
 316:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 317:/mnt/hgfs/boot/booter/source/uart.c **** 
 318:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->fifoctrl = ( 0
 319:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_FIFOCTRL_RFT_4
GAS LISTING /tmp/cc4XVykA.s 			page 7


 320:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_FIFOCTRL_TFT_12
 321:/mnt/hgfs/boot/booter/source/uart.c **** 		/*| UART_FIFOCTRL_MS*/
 322:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_FIFOCTRL_TR
 323:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_FIFOCTRL_RR
 324:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_FIFOCTRL_FE
 325:/mnt/hgfs/boot/booter/source/uart.c **** 		) ;
 326:/mnt/hgfs/boot/booter/source/uart.c **** 
 327:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->mdmctrl = 0;
 328:/mnt/hgfs/boot/booter/source/uart.c **** 
 329:/mnt/hgfs/boot/booter/source/uart.c **** 	/* 8N1 */
 330:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->linectrl = UART_LINECTRL_WLS_8;
 331:/mnt/hgfs/boot/booter/source/uart.c **** 
 332:/mnt/hgfs/boot/booter/source/uart.c **** 	// Equation: Baudrate = CPU / (SD * 2 * CLKDIV * 16)	
 333:/mnt/hgfs/boot/booter/source/uart.c **** 	clkdiv = (12000000 * (0x3F & sys->cpupll)) / (baud * ((sys->powerctrl & 0x03) + 2) * 2 * 16);
 334:/mnt/hgfs/boot/booter/source/uart.c **** 
 335:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->clkdiv = clkdiv;
 336:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 337:/mnt/hgfs/boot/booter/source/uart.c **** 
 338:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->linestat;
 339:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->intcause;
 340:/mnt/hgfs/boot/booter/source/uart.c **** 
 341:/mnt/hgfs/boot/booter/source/uart.c **** 	p->uart->inten = ( 0
 342:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_INTEN_MIE
 343:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_INTEN_LIE
 344:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_INTEN_TIE
 345:/mnt/hgfs/boot/booter/source/uart.c **** 		| UART_INTEN_RIE
 346:/mnt/hgfs/boot/booter/source/uart.c **** 		) ;
 347:/mnt/hgfs/boot/booter/source/uart.c **** 
 348:/mnt/hgfs/boot/booter/source/uart.c **** 	/* Hook interrupt */
 349:/mnt/hgfs/boot/booter/source/uart.c **** 	cpuIrqEnable(p->irq, 0, (void *)uartHandler, (void *)p);
 350:/mnt/hgfs/boot/booter/source/uart.c **** 
 351:/mnt/hgfs/boot/booter/source/uart.c **** }
 352:/mnt/hgfs/boot/booter/source/uart.c **** 
 353:/mnt/hgfs/boot/booter/source/uart.c **** /********************************************************************/
 354:/mnt/hgfs/boot/booter/source/uart.c **** 
 355:/mnt/hgfs/boot/booter/source/uart.c **** 
 356:/mnt/hgfs/boot/booter/source/uart.c **** 
 357:/mnt/hgfs/boot/booter/source/uart.c **** 
 358:/mnt/hgfs/boot/booter/source/uart.c **** 
 359:/mnt/hgfs/boot/booter/source/uart.c **** #else /* polled UART */
 360:/mnt/hgfs/boot/booter/source/uart.c **** typedef volatile struct UART_t
 361:/mnt/hgfs/boot/booter/source/uart.c **** {
 362:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 rxdata;
 363:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 txdata;
 364:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 inten;
 365:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 incause;
 366:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 fifoctrl;
 367:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 linectrl;
 368:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 mdmctrl;
 369:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 linestat;
 370:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 mdmstat;
 371:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 autoflow;
 372:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 clkdiv;
 373:/mnt/hgfs/boot/booter/source/uart.c **** 	char buffer[212];
 374:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 enable;
 375:/mnt/hgfs/boot/booter/source/uart.c **** } UART_t;
 376:/mnt/hgfs/boot/booter/source/uart.c **** 
GAS LISTING /tmp/cc4XVykA.s 			page 8


 377:/mnt/hgfs/boot/booter/source/uart.c **** #define AU1000_UART	UART_t
 378:/mnt/hgfs/boot/booter/source/uart.c **** /********************************************************************/
 379:/mnt/hgfs/boot/booter/source/uart.c **** void
 380:/mnt/hgfs/boot/booter/source/uart.c **** uartInit (int uartNumber, int baud)
 381:/mnt/hgfs/boot/booter/source/uart.c **** {
  20              		.loc 1 381 0
  21              		.frame	$sp,40,$31		# vars= 0, regs= 5/0, args= 16, gp= 0
  22              		.mask	0x800f0000,-8
  23              		.fmask	0x00000000,0
  24              		.set	noreorder
  25              		.set	nomacro
  26              		
  27 0000 D8FFBD27 		addiu	$sp,$sp,-40
  28              	$LCFI0:
  29 0004 1C00B3AF 		sw	$19,28($sp)
  30              	$LCFI1:
  31 0008 1000B0AF 		sw	$16,16($sp)
  32              	$LCFI2:
  33 000c 2198A000 		move	$19,$5
  34 0010 21808000 		move	$16,$4
 382:/mnt/hgfs/boot/booter/source/uart.c **** 	AU1000_UART *uart;
 383:/mnt/hgfs/boot/booter/source/uart.c **** 	uint32 clkdiv;
 384:/mnt/hgfs/boot/booter/source/uart.c **** 
 385:/mnt/hgfs/boot/booter/source/uart.c **** 	/* get the system parameter area */
 386:/mnt/hgfs/boot/booter/source/uart.c **** 	sys = (AU1X00_SYS *)
  35              		.loc 1 386 0
  36 0014 14010624 		li	$6,276			# 0x114
  37 0018 9011043C 		li	$4,294649856			# 0x11900000
  38 001c 21280000 		move	$5,$0
  39 0020 21380000 		move	$7,$0
  40              		.loc 1 381 0
  41 0024 1800B2AF 		sw	$18,24($sp)
  42              	$LCFI3:
  43 0028 1400B1AF 		sw	$17,20($sp)
  44              	$LCFI4:
  45 002c 2000BFAF 		sw	$31,32($sp)
  46              	$LCFI5:
  47              		.loc 1 386 0
  48 0030 0000000C 		jal	mapPhysicalAddress
  49 0034 0000123C 		lui	$18,%hi(sys)
  50              	
  51 0038 21204000 		move	$4,$2
 387:/mnt/hgfs/boot/booter/source/uart.c **** 		mapPhysicalAddress(SYS_PHYS_ADDR, sizeof(AU1X00_SYS), 0);
 388:/mnt/hgfs/boot/booter/source/uart.c **** 
 389:/mnt/hgfs/boot/booter/source/uart.c **** 	switch (uartNumber)
 390:/mnt/hgfs/boot/booter/source/uart.c **** 	{
 391:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART0_PHYS_ADDR
 392:/mnt/hgfs/boot/booter/source/uart.c **** 		case 0:
 393:/mnt/hgfs/boot/booter/source/uart.c **** 			uart = (AU1000_UART *)KSEG1(UART0_PHYS_ADDR);
  52              		.loc 1 393 0
  53 003c 10B1113C 		li	$17,-1324351488			# 0xffffffffb1100000
  54              		.loc 1 386 0
  55              		.loc 1 389 0
  56 0040 0E000012 		beq	$16,$0,$L3
  57 0044 000042AE 		sw	$2,%lo(sys)($18)
  58              	
  59 0048 01000224 		li	$2,1			# 0x1
GAS LISTING /tmp/cc4XVykA.s 			page 9


 394:/mnt/hgfs/boot/booter/source/uart.c **** #if defined(AU1200)
 395:/mnt/hgfs/boot/booter/source/uart.c **** 			sys->pinfunc &= ~SYS_PINFUNC_U0T;
 396:/mnt/hgfs/boot/booter/source/uart.c **** 			sys->pinfunc |= SYS_PINFUNC_U0R;
 397:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 398:/mnt/hgfs/boot/booter/source/uart.c **** 			break;
 399:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 400:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART1_PHYS_ADDR
 401:/mnt/hgfs/boot/booter/source/uart.c **** 		case 1:
 402:/mnt/hgfs/boot/booter/source/uart.c **** 			uart = (AU1000_UART *)KSEG1(UART1_PHYS_ADDR);
 403:/mnt/hgfs/boot/booter/source/uart.c **** #if defined(AU1200)
 404:/mnt/hgfs/boot/booter/source/uart.c **** 			sys->pinfunc &= ~SYS_PINFUNC_U1T;
 405:/mnt/hgfs/boot/booter/source/uart.c **** 			sys->pinfunc |= SYS_PINFUNC_U1R;
 406:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 407:/mnt/hgfs/boot/booter/source/uart.c **** 			break;
 408:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 409:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART2_PHYS_ADDR
 410:/mnt/hgfs/boot/booter/source/uart.c **** 		case 2: uart = (AU1000_UART *)KSEG1(UART2_PHYS_ADDR); break;
 411:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 412:/mnt/hgfs/boot/booter/source/uart.c **** #ifdef UART3_PHYS_ADDR
 413:/mnt/hgfs/boot/booter/source/uart.c **** 		case 3:
 414:/mnt/hgfs/boot/booter/source/uart.c **** 			uart = (AU1000_UART *)KSEG1(UART3_PHYS_ADDR);
 415:/mnt/hgfs/boot/booter/source/uart.c **** 			sys->pinfunc &= ~SYS_PINFUNC_U3;
 416:/mnt/hgfs/boot/booter/source/uart.c **** 			break;
 417:/mnt/hgfs/boot/booter/source/uart.c **** #endif
 418:/mnt/hgfs/boot/booter/source/uart.c **** 		default:
 419:/mnt/hgfs/boot/booter/source/uart.c **** 			return;
 420:/mnt/hgfs/boot/booter/source/uart.c **** 	}
 421:/mnt/hgfs/boot/booter/source/uart.c **** 
 422:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->enable = UART_ENABLE_CE;
 423:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 424:/mnt/hgfs/boot/booter/source/uart.c **** 
 425:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->enable = UART_ENABLE_CE | UART_ENABLE_E;
 426:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 427:/mnt/hgfs/boot/booter/source/uart.c **** 
 428:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->inten = 0;
 429:/mnt/hgfs/boot/booter/source/uart.c **** 
 430:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->fifoctrl = UART_FIFOCTRL_TR | UART_FIFOCTRL_RR;
 431:/mnt/hgfs/boot/booter/source/uart.c **** 
 432:/mnt/hgfs/boot/booter/source/uart.c **** 	/* 8N1 */
 433:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->linectrl = UART_LINECTRL_WLS_8;
 434:/mnt/hgfs/boot/booter/source/uart.c **** 
 435:/mnt/hgfs/boot/booter/source/uart.c **** 	clkdiv = (12000000 * (0x3F & sys->cpupll)) / (baud * ((sys->powerctrl & 0x03) + 2) * 2 * 16);
 436:/mnt/hgfs/boot/booter/source/uart.c **** 	uart->clkdiv = clkdiv;
 437:/mnt/hgfs/boot/booter/source/uart.c **** 	msdelay(100);
 438:/mnt/hgfs/boot/booter/source/uart.c **** 	
 439:/mnt/hgfs/boot/booter/source/uart.c **** 	*((int*)0xAF000000) = *((int*)0xB1100100);
 440:/mnt/hgfs/boot/booter/source/uart.c **** }
  60              		.loc 1 440 0
  61              		.loc 1 389 0
  62 004c 39000216 		bne	$16,$2,$L8
  63 0050 2000BF8F 		lw	$31,32($sp)
  64              	
  65              		.loc 1 404 0
  66 0054 2C00828C 		lw	$2,44($4)
  67 0058 FFEF0324 		li	$3,-4097			# 0xffffffffffffefff
  68              		.loc 1 402 0
  69 005c 20B1113C 		li	$17,-1323302912			# 0xffffffffb1200000
GAS LISTING /tmp/cc4XVykA.s 			page 10


  70              		.loc 1 404 0
  71 0060 24104300 		and	$2,$2,$3
  72 0064 2C0082AC 		sw	$2,44($4)
  73              		.loc 1 405 0
  74 0068 2C00838C 		lw	$3,44($4)
  75 006c 00086334 		ori	$3,$3,0x800
  76 0070 2C0083AC 		sw	$3,44($4)
  77              		.loc 1 422 0
  78 0074 27000008 		j	$L7
  79 0078 01000224 		li	$2,1			# 0x1
  80              	
  81              	$L3:
  82              		.loc 1 395 0
  83 007c 2C00438C 		lw	$3,44($2)
  84 0080 F7FF0224 		li	$2,-9			# 0xfffffffffffffff7
  85 0084 24186200 		and	$3,$3,$2
  86 0088 2C0083AC 		sw	$3,44($4)
  87              		.loc 1 396 0
  88 008c 2C00828C 		lw	$2,44($4)
  89 0090 00014234 		ori	$2,$2,0x100
  90 0094 2C0082AC 		sw	$2,44($4)
  91              		.loc 1 422 0
  92 0098 01000224 		li	$2,1			# 0x1
  93              	$L7:
  94 009c 000122AE 		sw	$2,256($17)
  95              		.loc 1 423 0
  96 00a0 64000424 		li	$4,100			# 0x64
  97              		.loc 1 425 0
  98              		.loc 1 423 0
  99 00a4 0000000C 		jal	msdelay
 100 00a8 03001024 		li	$16,3			# 0x3