Hello Paul,
On 05-06-15 10:04, Jeroen Hofstee wrote:
On 05-06-15 10:01, Jeroen Hofstee wrote:
On 01-06-15 19:44, Paul Walmsley wrote:
The best way to make this work IMHO would be for us not to accept
any new
feature addition patches as long as there are warnings reported in the
test results. The only real exception that I would foresee is if those
warnings are due to something outside of our control, e.g., a crappy
bootloader, as I suspect the USB_OTG initiator warnings are for the
CM-T3517.
I doubt this is related to the bootloader. I have the suspicion that
is actually
a bug in linux but only triggered depending on whether the ROMcode setup
the USB OTG or not. Here is some data to backup my statement:
Turns out my suspicion was wrong. This is what I know at the moment,
depending on the bootpins, u-boot will trigger a bad access when loading
a file over ethernet, but only the first time. Clearing the pending
interrupt
before booting linux make the "USB_OTG address hole seen" go away.
Regards,
Jeroen
U-Boot 2015.04-00098-g487ee34-dirty (Jun 05 2015 - 13:14:48)
AM35XX-GP ES2.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz
ccgx + LPDDR/NAND
I2C: ready
DRAM: 256 MiB
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
In: serial
Out: serial
Err: serial
Die ID #2276000100000000014e0fb21500b024
Net: DaVinci-EMAC
Hit any key to stop autoboot: 0
ccgx=> echo $clear_l3_int
mw 68004428 0x11000000; mw 6800442C 0x00000000; mw 68004458 0xFFFFFFFF;
mw 6800445C 0xFFFFFFFF
ccgx=> md 0x68000510 2
68000510: 00000000 00000000 ........
ccgx=> tftp ccgx/zImage; tftp 80000000 ccgx/am3517-ccgx.dtb;
Using DaVinci-EMAC device
TFTP from server 10.0.0.103; our IP address is 10.0.0.250
Filename 'ccgx/zImage'.
Load address: 0x80300000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
##########
863.3 KiB/s
done
Bytes transferred = 4040072 (3da588 hex)
Using DaVinci-EMAC device
TFTP from server 10.0.0.103; our IP address is 10.0.0.250
Filename 'ccgx/am3517-ccgx.dtb'.
Load address: 0x80000000
Loading: ###########
825.2 KiB/s
done
Bytes transferred = 54112 (d360 hex)
ccgx=> md 0x68000510 2
68000510: 04000000 00000000 ........
ccgx=> run clear_l3_int
ccgx=> md 0x68000510 2
68000510: 00000000 00000000 ........
ccgx=> boot
# USB_OTG error is gone...
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