On 09/11/2013 03:12 PM, Allen Martin wrote: > On Mon, Sep 09, 2013 at 02:53:51PM -0700, Stephen Warren wrote: >> On 09/09/2013 02:15 PM, Allen Martin wrote: >>> Add command "--odmdata" to pass odmdata down to the miniloader. This >>> is used by the miniloader for things such as UART init and RAM sizing. >>> It is normally not needed and is really only useful for miniloader >>> debugging. >> >> Does the miniloader put it into the BCT in IRAM so that the bootloader >> can also read it? If suppose we expect the correct ODMDATA to be already >> included in the BCT that tegrarcm sends though, so the bootloader >> already sees the correct value. > > Yes, miniloader will update the BCT with the new value if you send > this command after downloading a BCT. Really the only thing I'm using > this for is the side effect inside miniloader that causes it to > reinitialize the UART with the new odmdata value. For some reason > when you donwload the BCT, miniloader does not do that, and when you > boot in recovery mode there's no initial BCT so UART never gets > initialized in miniloader and you get no debug prints. Oh, I wasn't aware that the miniloader ever initialized the UART. Debug prints from what? The miniloader itself, or what it loads (which I think should be initializing the UART from scratch anyway, since I assume the boot ROM doesn't do it for the regular boot path either). -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
