Booting issues via SPI1 connected external Flash

Steve Kreyer

Intellectual 520 points

Other Parts Discussed in Thread: OMAP-L138

Hi all,

Iam trying to get our customized hardware to run. The board has an OMAP-L138 on it and a SPI1 connected external flash.

The steps I've done so far:

* Compiled a simple hello world program which shall toggle a pin (located in IRAM).

* Created the AIS binary boot image according to the bootloader pdf sprab41d.pdf

* flashed the boot image at address 0 into the external SPI1 flash, read it back and compared it to the generated one (it should be equal).

Now if a reset happens the omap rom code seems to read out the whole image from SPI1 flash (I can see this via a SPI logic analyzer) but doesn't start the application.

This is only the simple case: My final goal is to get an application working which is located in an external SRAM (connected to EMIFA). This already runs using the gel file and JTAG emulator. For this I also have to configure PSCs, PINMUXs and SDRAM within the AISgen tool for the bootloader image. This is the next step. I've tried it before but than the omap rom code aborts on the stage where it configures the PSC controller (I can also see this via the SPI logic analyzer Iam using) because the SPI communication then just interrupts nearly at the image offset where the PSC configuration is located.

Can you help me on this issue? I've attached my AISgen cfg for the both (simple and final) cases. If you need additional information please let me know.

Thanks for your help.

Kind Regards,

Steve

3857.simple.cfg.txt

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Boot Mode=SPI0 Flash
Boot Speed=2
Flash Width=0
Flash Timing=3ffffffc
Configure Peripheral=True
Configure PLL0=True
Configure SDRAM=False
Configure PLL1=False
Configure DDR2=False
Configure LPSC=False
Configure Pinmux=False
Enable CRC=False
Specify Entrypoint=False
Enable Sequential Read=False
Use 4.5 Clock Divider=False
Use DDR2 Direct Clock=False
Use mDDR=True
ROM ID=2
Device Type=1
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Boot Mode=SPI0 Flash
Boot Speed=2
Flash Width=0
Flash Timing=3ffffffc
Configure Peripheral=True
Configure PLL0=True
Configure SDRAM=False
Configure PLL1=False
Configure DDR2=False
Configure LPSC=False
Configure Pinmux=False
Enable CRC=False
Specify Entrypoint=False
Enable Sequential Read=False
Use 4.5 Clock Divider=False
Use DDR2 Direct Clock=False
Use mDDR=True
ROM ID=2
Device Type=1
Input Clock Speed=20
Clock Type=0
PLL0 Pre Divider=1
PLL0 Multiplier=15
PLL0 Post Divider=1
PLL0 Div1=1
PLL0 Div3=3
PLL0 Div7=6
PLL1 Multiplier=20
PLL1 Post Divider=2
PLL1 Div1=1
PLL1 Div2=2
PLL1 Div3=3
Entrypoint=11808560
SDRAM SDBCR=4521
SDRAM SDTMR=31114620
SDRAM SDRSRPDEXIT=7
SDRAM SDRCR=30e
DDR2 PHY=0
DDR2 SDCR=0
DDR2 SDCR2=0
DDR2 SDTIMR=0
DDR2 SDTIMR2=0
DDR2 SDRCR=0
LPSC0 Enable=3+
LPSC0 Disable=
LPSC0 SyncRst=
LPSC1 Enable=3+
LPSC1 Disable=
LPSC1 SyncRst=
Pinmux=5:11000000+6:10111111+7:10000+8:11111111+9:11111111+11:11111111+12:11111111+13:80+
App File String=D:\cc_workspace\hello_world_simple\Release\hello_world_simple.out;
AIS File Name=D:\cc_workspace\hello_world_simple\Release\hello_world_simple.bin

0361.final.cfg.txt

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Boot Mode=SPI0 Flash
Boot Speed=2
Flash Width=0
Flash Timing=3ffffffc
Configure Peripheral=True
Configure PLL0=True
Configure SDRAM=True
Configure PLL1=False
Configure DDR2=False
Configure LPSC=True
Configure Pinmux=True
Enable CRC=False
Specify Entrypoint=False
Enable Sequential Read=False
Use 4.5 Clock Divider=False
Use DDR2 Direct Clock=False
Use mDDR=True
ROM ID=2
Device Type=1
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Boot Mode=SPI0 Flash
Boot Speed=2
Flash Width=0
Flash Timing=3ffffffc
Configure Peripheral=True
Configure PLL0=True
Configure SDRAM=True
Configure PLL1=False
Configure DDR2=False
Configure LPSC=True
Configure Pinmux=True
Enable CRC=False
Specify Entrypoint=False
Enable Sequential Read=False
Use 4.5 Clock Divider=False
Use DDR2 Direct Clock=False
Use mDDR=True
ROM ID=2
Device Type=1
Input Clock Speed=20
Clock Type=0
PLL0 Pre Divider=1
PLL0 Multiplier=15
PLL0 Post Divider=1
PLL0 Div1=1
PLL0 Div3=3
PLL0 Div7=6
PLL1 Multiplier=20
PLL1 Post Divider=2
PLL1 Div1=1
PLL1 Div2=2
PLL1 Div3=3
Entrypoint=40008560
SDRAM SDBCR=4521
SDRAM SDTMR=31114620
SDRAM SDRSRPDEXIT=7
SDRAM SDRCR=30e
DDR2 PHY=0
DDR2 SDCR=0
DDR2 SDCR2=0
DDR2 SDTIMR=0
DDR2 SDTIMR2=0
DDR2 SDRCR=0
LPSC0 Enable=0+1+2+3+4+5+9+10+11+12+15+
LPSC0 Disable=
LPSC0 SyncRst=
LPSC1 Enable=0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+24+25+26+27+28+29+30+31+
LPSC1 Disable=
LPSC1 SyncRst=
Pinmux=5:11000000+6:10111111+7:10000+8:11111111+9:11111111+11:11111111+12:11111111+13:80+
App File String=H:\laser\boot\kleiser_20110921\aisgen\hello_world_simple.out
AIS File Name=H:\laser\boot\kleiser_20110921\aisgen\hello_world_simple.bin

over 14 years ago

0 jc-ti over 14 years ago

TI__Mastermind 27585 points

Hi Steve, thanks for the detailed information.

Have you had a chance to check out this wiki: http://processors.wiki.ti.com/index.php/OMAP-L138_Bootloader

It covers the basics of exactly what you are trying to do. If that doesn't help, print out the output of the debug GEL file and we can see what the issue is.

Jeff

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Booting issues via SPI1 connected external Flash