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OMAP-L138: OMAP-L138 SPI SECURE BOOT

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Part Number:OMAP-L138

i'm a newbie, currently i have OMAP-L138 secure boot chip, the bootmode we use is SPI, my requirement is

1. Unlock JTAG to debug the device.

2. Load custom SBL that i currently have which is  working fine in the non secure version of OMAP-L138.


so far from the documents and previous discussions  i read what  i understood is that, to unlock JTAG the ini file should be configured as

bootExitType = NONSECURE  TAPCFG= 0x0000FFFF BOOTMODE=SPIMASTER (since our boodmode is SPI) and generate ais file using SecureHexAIS_OMAP-L138.exe

i got  the command to generate ais file from some of the previous discussions in the forum

SecureHexAIS_OMAP-L138.exe -ini <file name>.ini -otype binary -o <file name >.ais <file name>.out

After the ais file is created connect the UART0 to pc and write this ais file to the device using OMAP-L138 Secure UART BOOT Host Tool, and i can unlock the JTAG

The ini file that i got from forum is attached here,  (Please visit the site to view this file)

my questions are

1. The steps mentioned above is right or wrong ?

2. Does this ini file meet my requirement to unlock jtag or should i configure something else in this file ?

3. will my custom BL which runs on non secure omapl138 suit this secure boot omapl138 if not what changes i have to make it suit the secure boot device?


(if you tell me what to do exactly rather than providing some links or pdf it would be nice)





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