[flashrom] [coreboot] Trying to flash coreboot onto on-board SPI chip of HP Envy H87 haswell chipset.

[David Hendricks]

Cool, glad it worked!

To make things slightly easier, you should also try keeping the CMOS
battery and DIM (whatever that is) in.

On Tue, Oct 20, 2015 at 4:51 PM, Arpita Biswas <arpita.biswas07 at gmail.com>
wrote:

> Hi David,
>
> That did the trick !!! Thanks a bunch ! For anyone else interested, here
> is the combination of things I did :
>
> SOIC config as (1) mentioned earlier + held down the power button for 30
> sec to reset it + removed CMOS battery + removed jumper on SPI header (that
> cuts off the processor signal to SPI chip) + plugged in the power cable
> (that way enough power was there throughout the board for dediprog to
> detect) + removed the DIM (dunno if that made any difference, but did it
> since a post mentioned it anyways!).
>
> Dediprog then detected it sweetly :) :)
>
> Cheers,
> - Arpita
>
> On Tue, Oct 20, 2015 at 2:05 PM, David Hendricks <dhendrix at google.com>
> wrote:
>
>>
>>
>> On Tue, Oct 20, 2015 at 12:26 PM, Arpita Biswas <
>> arpita.biswas07 at gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> I am trying to update BIOS with coreboot onto HP Envy H87 haswell
>>> chipset (ipm87_mp)
>>> <http://www.newegg.com/Product/Product.aspx?Item=9SIA6392VN4810>. I am
>>> using Dediprog + SOIC 8-pin flash clip for flashing the SPI chip (W25Q64).
>>> However dediprog doesn't detect the chip when it's soldered on-board. On
>>> removing the chip from board, I can detect/read/write onto it without any
>>> issues.
>>>
>>> I've tried (and failed) with the following configurations :
>>> (1) SPI pin ------> Dediprog : /CS ---> CS, DO (IO1) ---> MISO, /WP
>>> (IO2) ---> 3.3V, GND ---> GND, DI (IO0) ---> MOSI, CLK ---> CLK, /HOLD
>>> (IO3) ---> 3.3V, VCC ---> 3.3V with motherboard power ON.
>>>
>>> (2) Same config as above but I tried to isolate the chip by removing
>>> CMOS battery + removing jumper on SPI header + powering OFF the motherboard.
>>>
>>> (3) Similar as (1) and (2), but let /HOLD, /Vcc and /WP float.
>>>
>>> (4) I tried using flashrom on the box too as internal programmer, but it
>>> did not recognize the SPI chip. Error log says "Found Programmer flash chip
>>> "Opaque flash chip" (8192 kB, Programmer-specific)."
>>>
>>> I've a feeling that something on the motherboard is interfering with the
>>> SPI chip since an off-board chip is working fine. Does anybody have any
>>> pointers on what could be going wrong ?
>>>
>>
>> I suspect your motherboard does not isolate the SPI ROM's voltage supply
>> and thus your Dediprog is effectively powering other components on the
>> board.
>>
>> If you can find a way to hold the PCH and ME in reset while the board is
>> powered on, that might work. Or, with the board off, you can try using an
>> external power supply (the usual warnings about possibly frying your board
>> apply).
>>
>>
>>
>>>
>>> Thanks in advance,
>>> - Arpita
>>>
>>> --
>>> coreboot mailing list: coreboot at coreboot.org
>>> http://www.coreboot.org/mailman/listinfo/coreboot
>>>
>>
>>
>>
>> --
>> David Hendricks (dhendrix)
>> Systems Software Engineer, Google Inc.
>>
>
>


-- 
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
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