On 12/22/2010 05:06 PM, Kevin Hilman wrote: > Michael Williamson <[email protected]> writes: > >> The JTAG variant code for Rev-2.0 silicon of the OMAP-L138 has changed. >> In addition, the variant code for the AM-1808 SoC appears to match >> the Rev-2.0 code for the OMAP-L138. Add an additional entry to support >> these chips. > > Tested on? > > I'm assuming on the Mity platforms, right? >
I tested this using an AM-1808 (456 MHz speedgrade) on a MityARM-1808 configured SoM. I don't have a rev-2.0 silicon OMAP-L138 to try, but according to the Rev B datasheet the variant will change as described. It doesn't break the Rev 1 OMAP-L138 silicon MityDSP-L138F SoM. There was a thread about this in this list (link below) and I also have some background on an e2e link at TI (link below). I had forgotten that I pulled this patch from Sudhakar Rajashekhara on the arago omapl PSP kernel (link to patch below). It's really his work. I can resubmit (with tested-by and correct authorship) unless someone at TI is prepping the same patch? I sent it because the AM-1808 fails to boot without it. Thanks. -Mike davinci thread: http://linux.davincidsp.com/pipermail/davinci-linux-open-source/2010-November/021224.html e2e thread: http://e2e.ti.com/support/embedded/f/354/p/67290/248486.aspx arago kernel patch: http://arago-project.org/git/projects/?p=linux-omapl1.git;a=commit;h=6157618435e313a444cdf059702bd34036a6e2b7 > Kevin > >> Signed-off-by: Michael Williamson <[email protected]> >> --- >> This is against davinci-linux tree. >> Changes since v0, removed whitespace fixups not related to patch. >> >> arch/arm/mach-davinci/da850.c | 7 +++++++ >> 1 files changed, 7 insertions(+), 0 deletions(-) >> >> diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c >> index 78b5ae2..2d0bba5 100644 >> --- a/arch/arm/mach-davinci/da850.c >> +++ b/arch/arm/mach-davinci/da850.c >> @@ -764,6 +764,13 @@ static struct davinci_id da850_ids[] = { >> .cpu_id = DAVINCI_CPU_ID_DA850, >> .name = "da850/omap-l138", >> }, >> + { >> + .variant = 0x1, >> + .part_no = 0xb7d1, >> + .manufacturer = 0x017, /* 0x02f >> 1 */ >> + .cpu_id = DAVINCI_CPU_ID_DA850, >> + .name = "da850/omap-l138/am18xx", >> + }, >> }; >> >> static struct davinci_timer_instance da850_timer_instance[4] = { _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
