Part Number: OMAP-L138
Other Parts Discussed in Thread: OMAPL138
Hello,
I'm trying to run U-Boot (ti-staging 2021.01) on our Logic PD DA850 EVM reference.
I'm facing issues with the standalone hello_world program though.
First it seems the default CONFIG_STANDALONE_LOAD_ADDR = 0xc100000 defined in arch/arm/config.mk is wrong for this board, I had to change it to 0xc1000000.
Shouldn't this value be already set in configs/da850evm_defconfig?
Is the OMAPL138 LCDK board working correctly with the default value?
The problem is then that an exception is triggered when starting the application:
[09:36:50:609] Filename 'hello_world.bin'. [09:36:50:609] Load address: 0xc0000000 [09:36:50:609] Loading: *<0x08># [09:36:50:632] ⇥ 43 KiB/s [09:36:50:632] done [09:36:50:632] Bytes transferred = 580 (244 hex) [09:36:50:632] U-Boot > go 0xc0000000 [09:36:51:893] ## Starting application at 0xC0000000 ... [09:36:51:893] undefined instruction [09:36:51:893] pc : [<c0000008>]⇥ lr : [<c7f9c833>] [09:36:51:893] reloc pc : [<b90e5008>]⇥ lr : [<c1081833>] [09:36:51:893] sp : c7e75810 ip : 0000001c⇥ fp : c10b1768 [09:36:51:893] r10: deadbeef r9 : c7e7aee0⇥ r8 : c7f9b2a0 [09:36:51:893] r7 : 00000000 r6 : c0000000⇥ r5 : c7e7c948 r4 : 00000002 [09:36:51:893] r3 : c0000000 r2 : c7e7c94c⇥ r1 : c7e7c94c r0 : 00000001 [09:36:51:893] Flags: Nzcv IRQs off FIQs off Mode SVC_32 [09:36:51:893] Code: 00000000 00000000 0005b570 000e0008 (f8d2f000) [09:36:51:893] Resetting CPU ... [09:36:51:909] [09:36:52:004] resetting ...
Isn't that an issue also on the OMAPL138 LCDK board?
I have bisected the code, it seems that This commit introduced the change.
It was indeed working fine on processor-SDK 06.03.00.106.
If I now disable Thumb build on recent U-Boot versions, hello_world does not crash anymore.
But this is not a solution for us, since memory is a real constraint here.
Thank you for your help!
Best regards,
Julien
