Since your board is a Broadwell-U, easiest way will be to extract it (along with the required refcode blob) from the generic/shellball image firmware for a Broadwell-U Chromebook (using cbfstool), which itself can be extracted from a ChromeOS recovery image.  John Lewis wrote up some helpful instructions here: https://johnlewis.ie/extracting-the-shell-ball-rom-using-a-chromeos-image/
I'd recommend using the image for 'SAMUS', the Google Chromebook Pixel2.

On Sat, Jul 29, 2017 at 3:31 AM, Zheng Bao <fishbaoz@hotmail.com> wrote:

Hi, All,
I am debugging a i7-5650 board. I use IBV's BIOS to wrap the coreboot, i.e, replace the BIOS Region with coreboot.rom.
So I assume the ME blob can work.
I wonder if it is the right way.

Is it fully supported by Coreboot?
How can we get MRC.bin and other blobs?

Thanks.

Zheng

coreboot-4.6-891-gca74434-dirty Fri Jul 28 06:45:02 UTC 2017 romstage starting...
PM1_STS:   0000
PM1_EN:    0000
PM1_CNT:   00000000
TCO_STS:   0000 0000
GPE0_STS:  08fe08fc 12400f35 6005e200 00000000
GPE0_EN:   00000000 00000000 00000000 00000000
GEN_PMCON: 0200 2024 4206
Previous Sleep State: S5
CPU: Intel(R) Core(TM) i7-5650U CPU @ 2.20GHz
CPU: ID 306d4, Broadwell E0 or F0, ucode: 0000001f
CPU: AES supported, TXT supported, VT supported
MCH: device id 1604 (rev 09) is Broadwell F0
PCH: device id 9cc3 (rev 03) is Broadwell U Premium
IGD: device id 1626 (rev 09) is Broadwell U GT3 (15W)
CPU: frequency set to 2200 MHz
SPD: index 0 (GPIO47=0 GPIO9=0 GPIO13=0)
CBFS: 'Master Header Locator' located CBFS at [300100:3fffc0)
CBFS: Locating 'spd.bin'
CBFS: Found @ offset 43f00 size 1000
SPD: module type is DDR3
SPD: module part is 99U5469-011.A01LF
SPD: banks 8, ranks 1, rows 16, columns 10, density 8192 Mb
SPD: device width 16 bits, bus width 64 bits
SPD: module size is 4096 MB (per channel)
ME: FW Partition Table      : OK
ME: Bringup Loader Failure  : NO
ME: Firmware Init Complete  : NO
ME: Manufacturing Mode      : YES
ME: Boot Options Present    : NO
ME: Update In Progress      : NO
ME: Current Working State   : Initializing
ME: Current Operation State : Bring up
ME: Current Operation Mode  : Security Override via Jumper
ME: Error Code              : Debug Failure
ME: Progress Phase          : BUP Phase
ME: Power Management Event  : Pseudo-global reset
ME: Progress Phase State    : 0x7b
ERROR: ME failed to respond
FMAP: Found "FLASH" version 1.1 at 300000.
FMAP: base = ffc00000 size = 400000 #areas = 3
MRC: no data in 'RW_MRC_CACHE'
No MRC cache found.
CBFS: 'Master Header Locator' located CBFS at [300100:3fffc0)
CBFS: Locating 'mrc.bin'
CBFS: 'mrc.bin' not found.
Couldn't find mrc.bin


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