Hi Mugunthan, On Jan 30, 2013, at 3:53 PM, Mugunthan V N wrote:
> On 1/30/2013 7:21 PM, Pantelis Antoniou wrote: >> Hi Vaibhav, >> >> On Jan 30, 2013, at 3:47 PM, Bedia, Vaibhav wrote: >> >>> Hi Antoniou, >>> >>> On Wed, Jan 30, 2013 at 19:07:19, Pantelis Antoniou wrote: >>>> Hi Vaibhav, >>>> >>>> On Jan 30, 2013, at 3:29 PM, Bedia, Vaibhav wrote: >>>> >>>>> On Wed, Jan 30, 2013 at 18:14:30, Pantelis Antoniou wrote: >>>>>> Hi Vaibhav, >>>>>> >>>>>> On Jan 30, 2013, at 2:38 PM, Bedia, Vaibhav wrote: >>>>>> >>>>>>> On Wed, Jan 30, 2013 at 16:38:50, Pantelis Antoniou wrote: >>>>>>> [...] >>>>>>>> TBH I haven't found a simple way to print out the silicon revision >>>>>>>> number. >>>>>>>> Anyone on the list know a quick and dirty method? >>>>>>>> >>>>>>> You can dump the DEVICE_ID register @ 0x44e10600. >>>>>>> Bits 31:28 should be 0 for PG1.0 and 1 for PG2.0. >>>>>>> >>>>>> Thanks this works perfectly: >>>>>> >>>>>> original-bone: >>>>>> root@beaglebone:~# devmem2 0x44e10600 w >>>>>> Read at address 0x44E10600 (0xb6ff4600): 0x0B94402E >>>>>> >>>>>> bone-black: >>>>>> root@beaglebone:~# devmem2 0x44e10600 w >>>>>> Read at address 0x44E10600 (0xb6fcc600): 0x1B94402E >>>>>> >>>>> I just re-read the mail-chain and I am confused here. >>>>> So the patch in question is meant for Bone-A4 which has >>>>> PG1.0? >>>>> >>>> It is a general bug fix. The problem was discovered only on >>>> the bone black which has PG2.0 silicon. The driver has been >>>> tested and it works on the original bone with PG1.0 as well. >>>> >>> But Mugunthan mentioned that he doesn't see this on an EVM >>> with PG2.0 silicon... is there any board dependency here? >>> >> I don't know, but I doubt it. How about we wait for Mugunthan to >> send us what are the DEVICE_ID contents for his board. >> >>> Regards, >>> Vaibhav >> Regards >> >> -- Pantelis >> > This is the device ID which i have > > [root@arago /]# devmem 0x44e10600 > 0x1B94402E > No clue what's the difference of the black with the EVM, and why this happens. The fix is valid anyway. > Regards > Mugunthan V N Regards -- Pantelis -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
