flash.lst

MPC5554处理器的初始化例程

GAS LISTING E:\sys_temp/cceekcaa.s 			page 1


   1              		.file	"mpc5500_ccdcfg.c"
   2              		.section	.debug_abbrev,"",@progbits
   3              	.Ldebug_abbrev0:
   4              		.section	.debug_info,"",@progbits
   5              	.Ldebug_info0:
   6              		.section	.debug_line,"",@progbits
   7              	.Ldebug_line0:
   8 0000 000000C8 		.section	".text"
   8      00020000 
   8      00440401 
   8      FB0E0A00 
   8      01010101 
   9              	.Ltext0:
  10              		.align 2
  11              		.globl cfg_mpc5500ccd
  12              		.type	cfg_mpc5500ccd, @function
  13              	cfg_mpc5500ccd:
  14              	.LFB2:
  15              		.file 1 "..\\src\\mpc5500_ccdcfg.c"
   1:..\src/mpc5500_ccdcfg.c **** /**************************************************************************/
   2:..\src/mpc5500_ccdcfg.c **** /* FILE NAME: mpc5500_ccdcfg.c               COPYRIGHT (c) Freescale 2004 */
   3:..\src/mpc5500_ccdcfg.c **** /*                                                All Rights Reserved     */
   4:..\src/mpc5500_ccdcfg.c **** /* DESCRIPTION:                                                           */
   5:..\src/mpc5500_ccdcfg.c **** /* This file contains functions for the MPC5500 assembly configuration.   */
   6:..\src/mpc5500_ccdcfg.c **** /* The user does not need to make any changes in this file.               */
   7:..\src/mpc5500_ccdcfg.c **** /* The user will change function field values in mpc5500_ccdcfg.h.        */
   8:..\src/mpc5500_ccdcfg.c **** /* Choices for field values are found in mpc5500_ccdcfg.h.                */
   9:..\src/mpc5500_ccdcfg.c **** /*========================================================================*/
  10:..\src/mpc5500_ccdcfg.c **** /* REV      AUTHOR       DATE       DESCRIPTION OF CHANGE                 */
  11:..\src/mpc5500_ccdcfg.c **** /* ---   -----------   ----------   ---------------------                 */
  12:..\src/mpc5500_ccdcfg.c **** /* 0.1   J. Yokubaitis 24/Nov/03     Initial version                      */
  13:..\src/mpc5500_ccdcfg.c **** /* 0.2   G. Jackson    15/Mar/04     Split into C code configuration      */
  14:..\src/mpc5500_ccdcfg.c **** /* 0.3   G. Jackson    15/Apr/04     C application functions removed      */
  15:..\src/mpc5500_ccdcfg.c **** /* 0.4   G. Jackson    13/May/04     Added CS2 and CS3 initializations    */
  16:..\src/mpc5500_ccdcfg.c **** /* 0.5   G. Jackson    08/Jun/04     Added PCR initialization for the     */
  17:..\src/mpc5500_ccdcfg.c **** /*                                    external bus and chip select 0 (CS0)*/
  18:..\src/mpc5500_ccdcfg.c **** /*                                    with external boot config option    */
  19:..\src/mpc5500_ccdcfg.c **** /*                                    control.                            */
  20:..\src/mpc5500_ccdcfg.c **** /* 0.6   G. Jackson    10/Jun/04     Changed EXT_BOOT to INT_BOOT as a    */
  21:..\src/mpc5500_ccdcfg.c **** /*                                   config option in mpc5500_usrccdcfg.h.*/
  22:..\src/mpc5500_ccdcfg.c **** /* 1.0   G. Jackson    30/Jun/04     Changed INT_BOOT to I_EXT_BUS_EN     */
  23:..\src/mpc5500_ccdcfg.c **** /*                                    Added I_DATA_PORT_SIZE              */
  24:..\src/mpc5500_ccdcfg.c **** /*                                    Added I_CFG_PBRG_XBAR               */
  25:..\src/mpc5500_ccdcfg.c **** /**************************************************************************/
  26:..\src/mpc5500_ccdcfg.c **** 
  27:..\src/mpc5500_ccdcfg.c **** 
  28:..\src/mpc5500_ccdcfg.c **** #include "mpc5554.h"
  29:..\src/mpc5500_ccdcfg.c **** #include "mpc5500_usrccdcfg.h"
  30:..\src/mpc5500_ccdcfg.c **** 
  31:..\src/mpc5500_ccdcfg.c **** 
  32:..\src/mpc5500_ccdcfg.c **** /***************************************************************************/
  33:..\src/mpc5500_ccdcfg.c **** /* FUNCTION     : cfg_mpc5500ccd()                                         */
  34:..\src/mpc5500_ccdcfg.c **** /* PURPOSE      : This function provides "C" code configuration for the    */
  35:..\src/mpc5500_ccdcfg.c **** /*                 MPC5500 family device. Previous initialization has set  */
  36:..\src/mpc5500_ccdcfg.c **** /*                 up the FMPLL clock speed, internal SRAM and the stack.  */
  37:..\src/mpc5500_ccdcfg.c **** /*                 The cfg_mpc5500ccd function completes initialization by */
  38:..\src/mpc5500_ccdcfg.c **** /*                 making desired changes to the XCLKS, EBI chip selects,  */
GAS LISTING E:\sys_temp/cceekcaa.s 			page 2


  39:..\src/mpc5500_ccdcfg.c **** /*                 with default settings for PBRIDGE_A, PBRIDGE_B, and the */
  40:..\src/mpc5500_ccdcfg.c **** /*                 XBAR.                                                   */
  41:..\src/mpc5500_ccdcfg.c **** /*                                                                         */
  42:..\src/mpc5500_ccdcfg.c **** /*                 In cases where (numerous) alternative initializations   */
  43:..\src/mpc5500_ccdcfg.c **** /*                 are desired, a sample configuration is included here.   */  
  44:..\src/mpc5500_ccdcfg.c **** /*                 Actual initialization required for a specific system    */ 
  45:..\src/mpc5500_ccdcfg.c **** /*                 remains the responsibility of the developer.            */
  46:..\src/mpc5500_ccdcfg.c **** /* INPUT NOTES  : (from mpc5500_usrccdcfg.h) I_CFG_XCLKS, I_EXT_BUS_EN,    */
  47:..\src/mpc5500_ccdcfg.c **** /*                  I_CFG_PBRG_XBAR                                        */
  48:..\src/mpc5500_ccdcfg.c **** /* RETURN NOTES : None                                                     */
  49:..\src/mpc5500_ccdcfg.c **** /* WARNING      : An external boot will configure CS0, the address bus,    */
  50:..\src/mpc5500_ccdcfg.c **** /*                 and the data bus; I_EXT_BUS_EN = YES will reconfigure   */
  51:..\src/mpc5500_ccdcfg.c **** /*                 the external bus with settings in mpc5500_usrccdcfg.h.  */                      
  52:..\src/mpc5500_ccdcfg.c **** /***************************************************************************/
  53:..\src/mpc5500_ccdcfg.c **** 
  54:..\src/mpc5500_ccdcfg.c **** /* MPC5500 initialization functions */
  55:..\src/mpc5500_ccdcfg.c **** void cfg_mpc5500ccd() {
  16              	twu %r1,-16(%r1)
  17 0000 9421FFF0 	.LCFI0:
  18              		mflr %r0
  19 0004 7C0802A6 		stw %r31,12(%r1)
  20 0008 93E1000C 	.LCFI1:
  21              		stw %r0,20(%r1)
  22 000c 90010014 	.LCFI2:
  23              		mr %r31,%r1
  24 0010 7C3F0B78 	.LCFI3:
  25              		.loc 1 58 0
  56:..\src/mpc5500_ccdcfg.c **** /*void cfg_mpc5500ccd(uint8_t External_Boot) { */
  57:..\src/mpc5500_ccdcfg.c ****    if(I_CFG_XCLKS) {   /* Option to change external clock speeds */
  58:..\src/mpc5500_ccdcfg.c ****      cfg_XCLKS();      /* Set up the External Clock speeds */
  26              	LKS
  27 0014 48000001 		.loc 1 63 0
  59:..\src/mpc5500_ccdcfg.c ****     }                  /* end I_CFG_XCLKS */
  60:..\src/mpc5500_ccdcfg.c **** 
  61:..\src/mpc5500_ccdcfg.c ****    if(I_EXT_BUS_EN) {  /* Set up external bus if enabled */
  62:..\src/mpc5500_ccdcfg.c **** 
  63:..\src/mpc5500_ccdcfg.c ****      cfg_PCR();        /* Set up Pad Configuration Registers for external bus */ 
  28              	l cfg_PCR
  29 0018 48000001 		.loc 1 65 0
  64:..\src/mpc5500_ccdcfg.c ****      
  65:..\src/mpc5500_ccdcfg.c ****      cfg_EBI();        /* Configure the External Bus Interface Chip Selects */
  30              	l cfg_EBI
  31 001c 48000001 		.loc 1 79 0
  66:..\src/mpc5500_ccdcfg.c **** 
  67:..\src/mpc5500_ccdcfg.c ****     }                  /* end external bus enable */ 
  68:..\src/mpc5500_ccdcfg.c **** 
  69:..\src/mpc5500_ccdcfg.c ****    if(I_CFG_PBRG_XBAR) {  /* Skip if not configuring PBRIDGEs or XBAR   */
  70:..\src/mpc5500_ccdcfg.c ****                           /* NOTE: These steps may not be necessary.    */
  71:..\src/mpc5500_ccdcfg.c ****                           /*       The user must know the exact effect. */
  72:..\src/mpc5500_ccdcfg.c **** 
  73:..\src/mpc5500_ccdcfg.c ****      cfg_PBRIDGE();    /* Configure PBRIDGE_A and PBRIDGE_B. */
  74:..\src/mpc5500_ccdcfg.c **** 
  75:..\src/mpc5500_ccdcfg.c ****      cfg_XBAR();       /* Configure the XBAR master/slave channel priorities. */
  76:..\src/mpc5500_ccdcfg.c ****     }
  77:..\src/mpc5500_ccdcfg.c **** 
  78:..\src/mpc5500_ccdcfg.c **** 
  79:..\src/mpc5500_ccdcfg.c **** } /* End of cfg_mpc5500ccd()  */
GAS LISTING E:\sys_temp/cceekcaa.s 			page 3


  32              	wz %r11,0(%r1)
  33 0020 81610000 		lwz %r0,4(%r11)
  34 0024 800B0004 		mtlr %r0
  35 0028 7C0803A6 		lwz %r31,-4(%r11)
  36 002c 83EBFFFC 		mr %r1,%r11
  37 0030 7D615B78 		blr
  38 0034 4E800020 	.LFE2:
  39              		.size	cfg_mpc5500ccd, .-cfg_mpc5500ccd
  40              		.align 2
  41              		.globl cfg_XCLKS
  42              		.type	cfg_XCLKS, @function
  43              	cfg_XCLKS:
  44              	.LFB3:
  45              		.loc 1 98 0
  80:..\src/mpc5500_ccdcfg.c **** 
  81:..\src/mpc5500_ccdcfg.c **** 
  82:..\src/mpc5500_ccdcfg.c **** /**************************************************************************/
  83:..\src/mpc5500_ccdcfg.c **** /*                       C Code Functions                                 */
  84:..\src/mpc5500_ccdcfg.c **** /**************************************************************************/
  85:..\src/mpc5500_ccdcfg.c **** 
  86:..\src/mpc5500_ccdcfg.c **** 
  87:..\src/mpc5500_ccdcfg.c **** /*************************************************************************/
  88:..\src/mpc5500_ccdcfg.c **** /* FUNCTION     : cfg_XCLKS                                              */
  89:..\src/mpc5500_ccdcfg.c **** /* PURPOSE      : This function configures the external clocks (CLKOUT   */
  90:..\src/mpc5500_ccdcfg.c **** /*                 and ENGCLK). The PCRs are also set for these 2 pins.  */
  91:..\src/mpc5500_ccdcfg.c **** /* INPUT NOTES  : I_CFG_XCLKS -- used to permit external clock changes.  */
  92:..\src/mpc5500_ccdcfg.c **** /*                               Defined in mpc5500_usrccdcfg.h          */
  93:..\src/mpc5500_ccdcfg.c **** /* RETURN NOTES : None                                                   */
  94:..\src/mpc5500_ccdcfg.c **** /* WARNING      : None                                                   */
  95:..\src/mpc5500_ccdcfg.c **** /*************************************************************************/
  96:..\src/mpc5500_ccdcfg.c **** 
  97:..\src/mpc5500_ccdcfg.c **** void cfg_XCLKS() 
  98:..\src/mpc5500_ccdcfg.c **** {
  46              	%r1)
  47 0038 9421FFF0 	.LCFI4:
  48              		stw %r31,12(%r1)
  49 003c 93E1000C 	.LCFI5:
  50              		mr %r31,%r1
  51 0040 7C3F0B78 	.LCFI6:
  52              		.loc 1 105 0
  99:..\src/mpc5500_ccdcfg.c **** 
 100:..\src/mpc5500_ccdcfg.c **** /* This function configures the external clocks */
 101:..\src/mpc5500_ccdcfg.c **** /*   Engineering clock is set to divide by 128    */
 102:..\src/mpc5500_ccdcfg.c **** /*   CLKOUT is set to divide-by-2                 */
 103:..\src/mpc5500_ccdcfg.c **** 
 104:..\src/mpc5500_ccdcfg.c **** /* Set the value for Pad Configuration Register (PCR214) for ENGCLK */
 105:..\src/mpc5500_ccdcfg.c ****     SIU.PCR[214].R = (OBE_ENGCLK_VAL | DSC_ENGCLK_VAL);
  53              	9,0xc3f9
  54 0044 3D20C3F9 		li %r0,0
  55 0048 38000000 		sth %r0,492(%r9)
  56 004c B00901EC 		.loc 1 109 0
 106:..\src/mpc5500_ccdcfg.c **** 
 107:..\src/mpc5500_ccdcfg.c **** 
 108:..\src/mpc5500_ccdcfg.c **** /* Set the value for Pad Configuration Register (PCR229) for CLKOUT */
 109:..\src/mpc5500_ccdcfg.c ****     SIU.PCR[229].R = (OBE_CLKOUT_VAL | DSC_CLKOUT_VAL);
  57              	 %r9,0xc3f9
  58 0050 3D20C3F9 		li %r0,704
GAS LISTING E:\sys_temp/cceekcaa.s 			page 4


  59 0054 380002C0 		sth %r0,522(%r9)
  60 0058 B009020A 		.loc 1 113 0
 110:..\src/mpc5500_ccdcfg.c **** 
 111:..\src/mpc5500_ccdcfg.c **** /* Set the value for the external clocks */
 112:..\src/mpc5500_ccdcfg.c **** 
 113:..\src/mpc5500_ccdcfg.c ****     SIU.ECCR.R = (ECCR_ENGDIV | ECCR_EBTS | ECCR_EBDF);
  61              	 %r9,0xc3f9
  62 005c 3D20C3F9 		li %r0,16129
  63 0060 38003F01 		stw %r0,2436(%r9)
  64 0064 90090984 		.loc 1 115 0
 114:..\src/mpc5500_ccdcfg.c **** 
 115:..\src/mpc5500_ccdcfg.c **** } /* End of cfg_XCLKS  */
  65              	 %r11,0(%r1)
  66 0068 81610000 		lwz %r31,-4(%r11)
  67 006c 83EBFFFC 		mr %r1,%r11
  68 0070 7D615B78 		blr
  69 0074 4E800020 	.LFE3:
  70              		.size	cfg_XCLKS, .-cfg_XCLKS
  71              		.align 2
  72              		.globl cfg_PCR
  73              		.type	cfg_PCR, @function
  74              	cfg_PCR:
  75              	.LFB4:
  76              		.loc 1 131 0
 116:..\src/mpc5500_ccdcfg.c **** 
 117:..\src/mpc5500_ccdcfg.c **** /******************************************************************/
 118:..\src/mpc5500_ccdcfg.c **** /* FUNCTION     : cfg_PCR                                         */
 119:..\src/mpc5500_ccdcfg.c **** /* PURPOSE      : This function configures the SIU PCR's for      */
 120:..\src/mpc5500_ccdcfg.c **** /*                  external bus operation.                       */
 121:..\src/mpc5500_ccdcfg.c **** /* INPUT NOTES  : None                                            */
 122:..\src/mpc5500_ccdcfg.c **** /* RETURN NOTES : None                                            */
 123:..\src/mpc5500_ccdcfg.c **** /* WARNING      : This function will be skipped if there is       */
 124:..\src/mpc5500_ccdcfg.c **** /*                 an external boot.                              */
 125:..\src/mpc5500_ccdcfg.c **** /*                Entries for *_C1 and *_C2 are control variables */
 126:..\src/mpc5500_ccdcfg.c **** /*                Entries for *_CG1 through *_CG4 are Control     */
 127:..\src/mpc5500_ccdcfg.c **** /*                 Group numbers. A Control Group is independent  */
 128:..\src/mpc5500_ccdcfg.c **** /*                 of the control variables (*_C1,etc.)           */
 129:..\src/mpc5500_ccdcfg.c **** /* ****************************************************************/
 130:..\src/mpc5500_ccdcfg.c **** void cfg_PCR()
 131:..\src/mpc5500_ccdcfg.c **** {
  77              	2(%r1)
  78 0078 9421FFE0 	.LCFI7:
  79              		mflr %r0
  80 007c 7C0802A6 		stw %r31,28(%r1)
  81 0080 93E1001C 	.LCFI8:
  82              		stw %r0,36(%r1)
  83 0084 90010024 	.LCFI9:
  84              		mr %r31,%r1
  85 0088 7C3F0B78 	.LCFI10:
  86              		.loc 1 134 0
 132:..\src/mpc5500_ccdcfg.c **** 
 133:..\src/mpc5500_ccdcfg.c **** /* This function configures the Pad Configuration Registers (PCR's) for ADDR[8:31] */
 134:..\src/mpc5500_ccdcfg.c ****     cfg_PCR_ADDR(PA_A_VAL, OBE_A_VAL, IBE_A_VAL, DSC_A_VAL, ODE_A_VAL, HYS_A_VAL, SRC_A_VAL, WPE_A_
  87              		stw %r0,8(%r1)
  88 008c 38000000 		li %r3,1024
  89 0090 90010008 		li %r4,0
  90 0094 38600400 		li %r5,0
GAS LISTING E:\sys_temp/cceekcaa.s 			page 5


  91 0098 38800000 		li %r6,64
  92 009c 38A00000 		li %r7,0
  93 00a0 38C00040 		li %r8,0
  94 00a4 38E00000 		li %r9,0
  95 00a8 39000000 		li %r10,0
  96 00ac 39200000 		bl cfg_PCR_ADDR
  97 00b0 39400000 		.loc 1 137 0
  98 00b4 48000001 		li %r0,0
 135:..\src/mpc5500_ccdcfg.c **** 
 136:..\src/mpc5500_ccdcfg.c **** /* This function configures the Pad Configuration Registers (PCR's) for DATA[0:15] */
 137:..\src/mpc5500_ccdcfg.c ****     cfg_PCR_DATA(PA_DL, OBE_DL, IBE_DL, DSC_DL, ODE_DL, HYS_DL, SRC_DL, WPE_DL, WPS_DL, DATA_BYT_MS
  99              	r1)
 100 00b8 38000000 		li %r0,0
 101 00bc 90010008 		stw %r0,12(%r1)
 102 00c0 38000000 		li %r3,1024
 103 00c4 9001000C 		li %r4,0
 104 00c8 38600400 		li %r5,0
 105 00cc 38800000 		li %r6,64