psc_i2c.lst

au1200下的boot代码

GAS LISTING /tmp/ccmjNVoP.s 			page 1


   1              		.section .mdebug.abi32
   2              		.previous
   3              		.section	.debug_abbrev,"",@progbits
   4              	$Ldebug_abbrev0:
   5              		.section	.debug_info,"",@progbits
   6              	$Ldebug_info0:
   7              		.section	.debug_line,"",@progbits
   8              	$Ldebug_line0:
   9 0000 9F010000 		.text
   9      0200A600 
   9      00000101 
   9      FB0E0A00 
   9      01010101 
  10              	$Ltext0:
  11              		.data
  12              		.align	2
  13              		.type	smb, @object
  14              		.size	smb, 4
  15              	smb:
  16 0000 0000B0B1 		.word	-1313865728
  17              		.align	2
  18              		.type	sys, @object
  19              		.size	sys, 4
  20              	sys:
  21 0004 000090B1 		.word	-1315962880
  22 0008 00000000 		.text
  22      00000000 
  23              		.align	2
  24              		.ent	i2c_wait_status
  25              		.type	i2c_wait_status, @function
  26              	i2c_wait_status:
  27              	$LFB2:
  28              		.file 1 "/mnt/hgfs/boot/booter/source/psc_i2c.c"
   1:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #if defined(DB1200)
   2:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
   3:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #include "example.h"
   4:/mnt/hgfs/boot/booter/source/psc_i2c.c **** #include "i2c.h"
   5:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
   6:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static PSC_SMB	*smb = (PSC_SMB *)KSEG1(SMBUS_PSC_BASE);
   7:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static AU1X00_SYS	*sys = (AU1X00_SYS *)KSEG1(SYS_PHYS_ADDR);
   8:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
   9:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  10:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static int i2c_wait_status(uint32 status, int set_or_clear, uint32 timeout)
  11:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
  29              		.loc 1 11 0
  30              		.frame	$sp,40,$31		# vars= 0, regs= 6/0, args= 16, gp= 0
  31              		.mask	0x801f0000,-4
  32              		.fmask	0x00000000,0
  33              		.set	noreorder
  34              		.set	nomacro
  35              		
  36 0000 D8FFBD27 		addiu	$sp,$sp,-40
  37              	$LCFI0:
  38 0004 2000B4AF 		sw	$20,32($sp)
  39              	$LCFI1:
  40 0008 1C00B3AF 		sw	$19,28($sp)
  41              	$LCFI2:
GAS LISTING /tmp/ccmjNVoP.s 			page 2


  42 000c 1800B2AF 		sw	$18,24($sp)
  43              	$LCFI3:
  44 0010 1400B1AF 		sw	$17,20($sp)
  45              	$LCFI4:
  46 0014 1000B0AF 		sw	$16,16($sp)
  47              	$LCFI5:
  48 0018 2400BFAF 		sw	$31,36($sp)
  49              	$LCFI6:
  12:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	int time = 0;
  13:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	//printf("shuaiwen:smb=%x\n",smb);
  14:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	while(!(smb->sts & status))
  15:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	{
  16:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(set_or_clear)
  17:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		{
  18:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			if(smb->sts & status)
  19:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 				break;
  20:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		}
  21:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		else
  22:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		{
  23:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			if(!(smb->sts & status))
  24:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 				break;
  25:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		}
  26:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  27:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(++time > timeout)
  28:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			return 0;
  29:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		msdelay(10);
  50              		.loc 1 29 0
  51 001c 0000123C 		lui	$18,%hi(smb)
  52 0020 0000438E 		lw	$3,%lo(smb)($18)
  53              		.loc 1 11 0
  54 0024 2198C000 		move	$19,$6
  55 0028 21888000 		move	$17,$4
  56              		.loc 1 29 0
  57 002c 1400628C 		lw	$2,20($3)
  58              		.loc 1 11 0
  59 0030 21A0A000 		move	$20,$5
  60              		.loc 1 12 0
  61 0034 21800000 		move	$16,$0
  62              		.loc 1 29 0
  63 0038 24104400 		and	$2,$2,$4
  64 003c 14004014 		bne	$2,$0,$L3
  65 0040 21304002 		move	$6,$18
  66              	
  67              		.loc 1 27 0
  68 0044 01001026 		addiu	$16,$16,1
  69              	$L17:
  70              		.loc 1 29 0
  71 0048 0A000424 		li	$4,10			# 0xa
  72              		.loc 1 27 0
  73              		.loc 1 16 0
  74 004c 19008012 		beq	$20,$0,$L4
  75 0050 2B287002 		sltu	$5,$19,$16
  76              	
  77              		.loc 1 18 0
  78 0054 0000C38C 		lw	$3,%lo(smb)($6)
  79 0058 1400628C 		lw	$2,20($3)
  80 005c 24105100 		and	$2,$2,$17
GAS LISTING /tmp/ccmjNVoP.s 			page 3


  30:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	}
  31:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  32:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
  33:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
  81              		.loc 1 33 0
  82              		.loc 1 18 0
  83 0060 0C004014 		bne	$2,$0,$L15
  84 0064 2400BF8F 		lw	$31,36($sp)
  85              	
  86              		.loc 1 27 0
  87 0068 1900A014 		bne	$5,$0,$L16
  88 006c 00000000 		nop
  89              	
  90              	$L8:
  91              		.loc 1 29 0
  92 0070 0000000C 		jal	msdelay
  93 0074 00000000 		nop
  94              	
  95 0078 0000438E 		lw	$3,%lo(smb)($18)
  96 007c 0000063C 		lui	$6,%hi(smb)
  97 0080 1400628C 		lw	$2,20($3)
  98 0084 24105100 		and	$2,$2,$17
  99              		.loc 1 27 0
 100              		.loc 1 29 0
 101 0088 EFFF4010 		beq	$2,$0,$L17
 102 008c 01001026 		addiu	$16,$16,1
 103              	
 104              	$L3:
 105              		.loc 1 33 0
 106 0090 2400BF8F 		lw	$31,36($sp)
 107              	$L15:
 108 0094 2000B48F 		lw	$20,32($sp)
 109 0098 1C00B38F 		lw	$19,28($sp)
 110 009c 1800B28F 		lw	$18,24($sp)
 111 00a0 1400B18F 		lw	$17,20($sp)
 112 00a4 1000B08F 		lw	$16,16($sp)
 113              		.loc 1 32 0
 114 00a8 01000224 		li	$2,1			# 0x1
 115              		.loc 1 33 0
 116 00ac 0800E003 		j	$31
 117 00b0 2800BD27 		addiu	$sp,$sp,40
 118              	
 119              	$L4:
 120              		.loc 1 23 0
 121 00b4 0000438E 		lw	$3,%lo(smb)($18)
 122 00b8 1400628C 		lw	$2,20($3)
 123 00bc 24105100 		and	$2,$2,$17
 124              		.loc 1 33 0
 125              		.loc 1 23 0
 126 00c0 F4FF4010 		beq	$2,$0,$L15
 127 00c4 2400BF8F 		lw	$31,36($sp)
 128              	
 129              		.loc 1 27 0
 130 00c8 E9FFA010 		beq	$5,$0,$L8
 131 00cc 00000000 		nop
 132              	
 133              	$L16:
GAS LISTING /tmp/ccmjNVoP.s 			page 4


 134              		.loc 1 33 0
 135 00d0 2000B48F 		lw	$20,32($sp)
 136 00d4 1C00B38F 		lw	$19,28($sp)
 137 00d8 1800B28F 		lw	$18,24($sp)
 138 00dc 1400B18F 		lw	$17,20($sp)
 139 00e0 1000B08F 		lw	$16,16($sp)
 140              		.loc 1 28 0
 141 00e4 21100000 		move	$2,$0
 142              		.loc 1 33 0
 143 00e8 0800E003 		j	$31
 144 00ec 2800BD27 		addiu	$sp,$sp,40
 145              	
 146              		.set	macro
 147              		.set	reorder
 148              	$LFE2:
 149              		.end	i2c_wait_status
 150              		.align	2
 151              		.ent	i2c_start
 152              		.type	i2c_start, @function
 153              	i2c_start:
 154              	$LFB4:
  34:/mnt/hgfs/boot/booter/source/psc_i2c.c ****    
  35:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static int i2c_wait_event(uint32 event, uint32 timeout)
  36:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
  37:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	int time = 0;
  38:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	
  39:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	while(!(smb->evnt & event))
  40:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	{
  41:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(++time > timeout)
  42:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		{
  43:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			DPRINTF("TIMEOUT waiting for event=0x%2x\n", event);
  44:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 			return 0;
  45:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		}
  46:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		msdelay(10);
  47:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	}
  48:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->evnt = event;
  49:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  50:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
  51:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
  52:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  53:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static int i2c_start()
  54:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
 155              		.loc 1 54 0
 156              		.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
 157              		.mask	0x80000000,-8
 158              		.fmask	0x00000000,0
 159              		.set	noreorder
 160              		.set	nomacro
 161              		
 162 00f0 E8FFBD27 		addiu	$sp,$sp,-24
 163              	$LCFI7:
  55:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	if(!i2c_wait_status(PSC_SMB_STS_BB, 0, I2C_CMD_TIMEOUT))
 164              		.loc 1 55 0
 165 00f4 21280000 		move	$5,$0
 166 00f8 0010043C 		li	$4,268435456			# 0x10000000
 167              		.loc 1 54 0
 168 00fc 1000BFAF 		sw	$31,16($sp)
GAS LISTING /tmp/ccmjNVoP.s 			page 5


 169              	$LCFI8:
 170              		.loc 1 55 0
 171 0100 0000000C 		jal	i2c_wait_status
 172 0104 64000624 		li	$6,100			# 0x64
 173              	
  56:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		return 0;
 174              		.loc 1 56 0
 175              		.loc 1 55 0
 176 0108 0B004010 		beq	$2,$0,$L18
 177 010c 21280000 		move	$5,$0
 178              	
  57:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  58:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->evnt = PSC_SMB_EVENT_ALL;	// clear events
 179              		.loc 1 58 0
 180 0110 0000023C 		lui	$2,%hi(smb)
 181 0114 0000448C 		lw	$4,%lo(smb)($2)
 182 0118 0170023C 		li	$2,1879113728			# 0x70010000
 183 011c 301B4234 		ori	$2,$2,0x1b30
 184 0120 180082AC 		sw	$2,24($4)
  59:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->pcr = PSC_SMB_PCR_DC;	// clear FIFOs
 185              		.loc 1 59 0
 186 0124 04000324 		li	$3,4			# 0x4
  60:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	smb->pcr = PSC_SMB_PCR_MS;	// start transfer
 187              		.loc 1 60 0
 188 0128 01000224 		li	$2,1			# 0x1
 189              		.loc 1 59 0
 190 012c 100083AC 		sw	$3,16($4)
  61:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  62:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	return 1;
 191              		.loc 1 62 0
 192 0130 01000524 		li	$5,1			# 0x1
 193              		.loc 1 60 0
 194 0134 100082AC 		sw	$2,16($4)
 195              	$L18:
  63:/mnt/hgfs/boot/booter/source/psc_i2c.c **** }
 196              		.loc 1 63 0
 197 0138 1000BF8F 		lw	$31,16($sp)
 198 013c 2110A000 		move	$2,$5
 199 0140 0800E003 		j	$31
 200 0144 1800BD27 		addiu	$sp,$sp,24
 201              	
 202              		.set	macro
 203              		.set	reorder
 204              	$LFE4:
 205              		.end	i2c_start
 206              		.align	2
 207              		.ent	i2c_write_data
 208              		.type	i2c_write_data, @function
 209              	i2c_write_data:
 210              	$LFB5:
  64:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  65:/mnt/hgfs/boot/booter/source/psc_i2c.c **** static int i2c_write_data(uint8* data, int len, int stop)
  66:/mnt/hgfs/boot/booter/source/psc_i2c.c **** {
 211              		.loc 1 66 0
 212              		.frame	$sp,56,$31		# vars= 0, regs= 10/0, args= 16, gp= 0
 213              		.mask	0xc0ff0000,-4
 214              		.fmask	0x00000000,0
GAS LISTING /tmp/ccmjNVoP.s 			page 6


 215              		.set	noreorder
 216              		.set	nomacro
 217              		
 218 0148 C8FFBD27 		addiu	$sp,$sp,-56
 219              	$LCFI9:
 220 014c 2400B5AF 		sw	$21,36($sp)
 221              	$LCFI10:
 222 0150 1800B2AF 		sw	$18,24($sp)
 223              	$LCFI11:
 224 0154 1400B1AF 		sw	$17,20($sp)
 225              	$LCFI12:
 226 0158 1000B0AF 		sw	$16,16($sp)
 227              	$LCFI13:
 228 015c 3400BFAF 		sw	$31,52($sp)
 229              	$LCFI14:
 230 0160 3000BEAF 		sw	$fp,48($sp)
 231              	$LCFI15:
 232 0164 2C00B7AF 		sw	$23,44($sp)
 233              	$LCFI16:
 234 0168 2800B6AF 		sw	$22,40($sp)
 235              	$LCFI17:
 236 016c 2000B4AF 		sw	$20,32($sp)
 237              	$LCFI18:
 238 0170 1C00B3AF 		sw	$19,28($sp)
 239              	$LCFI19:
 240              		.loc 1 66 0
 241 0174 2190A000 		move	$18,$5
 242 0178 21808000 		move	$16,$4
 243 017c 21A8C000 		move	$21,$6
  67:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	int i;
  68:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 
  69:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	for(i = 0; i < len; i++)
 244              		.loc 1 69 0
 245 0180 1800A018 		blez	$5,$L33
 246 0184 21880000 		move	$17,$0
 247              	
 248 0188 FFFFB424 		addiu	$20,$5,-1
 249 018c 01001624 		li	$22,1			# 0x1
 250 0190 0000133C 		lui	$19,%hi(smb)
 251 0194 00201E3C 		li	$fp,536870912			# 0x20000000
 252 0198 0010173C 		li	$23,268435456			# 0x10000000
  70:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 	{
  71:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		// Wait tx fifo not full
  72:/mnt/hgfs/boot/booter/source/psc_i2c.c **** 		if(!i2c_wait_status(PSC_SMB_STS_TF, 0, I2C_CMD_TIMEOUT))
 253              		.loc 1 72 0
 254 019c 00040424 		li	$4,1024			# 0x400
 255              	$L39:
 256 01a0 21280000 		move	$5,$0
 257 01a4 0000000C 		jal	i2c_wait_status
 258 01a8 64000624 		li	$6,100			# 0x64
 259