TMS320F280049C: Writing in OTP memory to change Boot mode settings

Dear All,

I want change boot mode pin setting default to FLASH.

For that I have done some changes in linker and .asm file. Do i need to do more changes ?

Here is my .asm file

;//###########################################################################
;//
;// FILE: f28004x_codestartbranch.asm
***********************************************************************

WD_DISABLE .set 0 ;set to 1 to disable WD, else set to 0

.ref _c_int00
.global code_start

***********************************************************************
* Function: codestart section
*
* Description: Branch to code starting point
***********************************************************************

.sect "codestart"

.sect "OTP_KEY"
.int 0x5AFF

.sect "OTP_BMODE"
.int 0xFFFF

.sect "OTP_Boot"
.int 0xFF03

code_start:
.if WD_DISABLE == 1
LB wd_disable ;Branch to watchdog disable code
.else
LB _c_int00 ;Branch to start of boot._asm in RTS library
.endif

;end codestart section

***********************************************************************
* Function: wd_disable
*
* Description: Disables the watchdog timer
***********************************************************************
.if WD_DISABLE == 1

.text
wd_disable:
SETC OBJMODE ;Set OBJMODE for 28x object code
EALLOW ;Enable EALLOW protected register access
MOVZ DP, #7029h>>6 ;Set data page for WDCR register
MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD
EDIS ;Disable EALLOW protected register access
LB _c_int00 ;Branch to start of boot._asm in RTS library

.endif

;end wd_disable

.end

;//
;// End of file.
;//

and here is linker file

MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to Flash" bootloader mode */

BEGIN : origin = 0x080000, length = 0x000002
RAMM0 : origin = 0x0000F5, length = 0x00030B

RAMLS0 : origin = 0x008000, length = 0x000800
RAMLS1 : origin = 0x008800, length = 0x000800
RAMLS2 : origin = 0x009000, length = 0x000800
RAMLS3 : origin = 0x009800, length = 0x000800
RAMLS4 : origin = 0x00A000, length = 0x000800
RESET : origin = 0x3FFFC0, length = 0x000002

OTP_BMODE : origin = 0x07800C, length = 0x000001 /* Add by me */
OTP_KEY : origin = 0x07800D, length = 0x000001 /* Add by me */
OTP_Boot : origin = 0x07801C, length = 0x000003 /* Add by me */

/* Flash sectors */
/* BANK 0 */
FLASH_BANK0_SEC0 : origin = 0x080002, length = 0x000FFE /* on-chip Flash */
FLASH_BANK0_SEC1 : origin = 0x081000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC2 : origin = 0x082000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC3 : origin = 0x083000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC4 : origin = 0x084000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC5 : origin = 0x085000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC6 : origin = 0x086000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC7 : origin = 0x087000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC8 : origin = 0x088000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC9 : origin = 0x089000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC10 : origin = 0x08A000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC11 : origin = 0x08B000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC12 : origin = 0x08C000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC13 : origin = 0x08D000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC14 : origin = 0x08E000, length = 0x001000 /* on-chip Flash */
FLASH_BANK0_SEC15 : origin = 0x08F000, length = 0x001000 /* on-chip Flash */

/* BANK 1 */
FLASH_BANK1_SEC0 : origin = 0x090000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC1 : origin = 0x091000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC2 : origin = 0x092000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC3 : origin = 0x093000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC4 : origin = 0x094000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC5 : origin = 0x095000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC6 : origin = 0x096000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC7 : origin = 0x097000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC8 : origin = 0x098000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC9 : origin = 0x099000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC10 : origin = 0x09A000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC11 : origin = 0x09B000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC12 : origin = 0x09C000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC13 : origin = 0x09D000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC14 : origin = 0x09E000, length = 0x001000 /* on-chip Flash */
FLASH_BANK1_SEC15 : origin = 0x09F000, length = 0x001000 /* on-chip Flash */

PAGE 1 :

BOOT_RSVD : origin = 0x000002, length = 0x0000F3 /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */

RAMLS5 : origin = 0x00A800, length = 0x000800
RAMLS6 : origin = 0x00B000, length = 0x000800
RAMLS7 : origin = 0x00B800, length = 0x000800

RAMGS0 : origin = 0x00C000, length = 0x002000
RAMGS1 : origin = 0x00E000, length = 0x002000
RAMGS2 : origin = 0x010000, length = 0x002000
RAMGS3 : origin = 0x012000, length = 0x002000
}

SECTIONS
{

codestart : > BEGIN, PAGE = 0, ALIGN(4)
.text : >>FLASH_BANK0_SEC1 | FLASH_BANK0_SEC2 | FLASH_BANK0_SEC3, PAGE = 0, ALIGN(4)
.cinit : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.pinit : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.switch : > FLASH_BANK0_SEC1, PAGE = 0, ALIGN(4)
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */

OTP_BMODE : > OTP_BMODE, PAGE = 0 /*Add by me*/
OTP_KEY : > OTP_KEY, PAGE = 0 /*Add by me*/
OTP_Boot : > OTP_Boot, PAGE = 0 /*Add by me*/

.cio : > RAMLS0, PAGE = 0
.stack : > RAMM1, PAGE = 1
.ebss : > RAMLS5, PAGE = 1
.esysmem : > RAMLS5, PAGE = 1
.econst : > FLASH_BANK0_SEC4, PAGE = 0, ALIGN(4)

ramgs0 : > RAMGS0, PAGE = 1
ramgs1 : > RAMGS1, PAGE = 1

.TI.ramfunc : LOAD = FLASH_BANK0_SEC1,
RUN = RAMLS0 | RAMLS1 | RAMLS2 |RAMLS3,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)

}