Hi all
I am trying to boot my AM1808 custom board using my host pc UART port.
I have created an .ini file and u-boot.bin. Also I have prepared the AIS boot image using the command-line HexAIS_OMAP-L138.exe
I am following this wiki:
http://processors.wiki.ti.com/index.php/GSG:_OMAP-L138_DVEVM_Additional_Procedures#Flashing_Boot_Images_on_Linux_Without_CCS
when I give the command :
mono ../slh_OMAP-L138.exe -waitForDevice -v -p /dev/ttyUSB0 u-boot_uart4.ais
everything runs normally
-----------------------------------------------------
TI Serial Loader Host Program for OMAP-L138
(C) 2014, Texas Instruments, Inc.
Ver. 1.65
-----------------------------------------------------
Attempting to connect to device /dev/ttyUSB0...
Press any key to end this program at any time.
Entering AIS Parser
Waiting for the OMAP-L138...
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): BOOTME received!
(AIS Parse): Performing Start-Word Sync...
(AIS Parse): Performing Ping Opcode Sync...
(AIS Parse): Processing command 0: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 1: 0x5853590D.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Executing function...
(AIS Parse): Processing command 2: 0x58535901.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Loading section...
(AIS Parse): Loaded 347496-Byte section to address 0xC1080000.
(AIS Parse): Processing command 3: 0x58535906.
(AIS Parse): Performing Opcode Sync...
(AIS Parse): Performing jump and close...
(AIS Parse): AIS complete. Jump to address 0xC1080000.
(AIS Parse): Waiting for DONE...
(AIS Parse): Boot completed successfully.
Operation completed successfully.
but after that when I open minicom I do not see the u-boot prompt
to check if I am doing all the steps correctly I tested it on my LogicPD AM1808 Experimenter kit. and I am able to see the u-boot prompt.
what might me the possible reasons behind this ? I have rechecked all the DDR2 settings and PLL settings. Also I have tried running the DDR2 with different frequencies: 150, 132, 100 MHz but still no success
note: my custom board has a different DDR2 memory as compared to EVM