Attention is currently required from: Christian Walter, Lean Sheng Tan, David.Milosevic@9elements.com.

David.Milosevic@9elements.com uploaded patch set #2 to this change.

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[WIP] mb/prodrive/atlas: Populate smbios table with VPD from ECs EMI

The embedded controller stores serial-number and part-number within
an EEPROM which is unreachable to the Host CPU. Therefore, on the
EC side, we set up a shared memory region with the help of EMI
and copy the VPDs to it. On the coreboot side, we can read those
back and populate the SMBios table type 1 with the serial-number and
type 11 with the part-number.

emi.*:         small interface to access the EMI regions
vpd.*:         uses the emi interface in order to read the VPDs
smbios.c:      populates smbios type 1 with the serial-number by using
               vpd.h
mainboard.c:   uses vpd.h to add a string to smbios type 11
ld_config.*:   offers functionality to configure logical devices
devicetree.cb: enables address range 0xc00-0xcff for the EMI runtime
               registers
Makefile.inc:  adds emi.c, vpd.c, smbios.c, ld_config.c to the ramstage
               compilation

TODO: ld_config.* is redundant. We can replace this with pnp_device.h
      or pnp_ops.h

Signed-off-by: Milo-D <David.Milosevic@9elements.com>
Change-Id: I47bb4883c43ff344a9bda92c3106dd025533b391
---
M src/mainboard/prodrive/atlas/Makefile.inc
M src/mainboard/prodrive/atlas/devicetree.cb
A src/mainboard/prodrive/atlas/emi.c
A src/mainboard/prodrive/atlas/emi.h
A src/mainboard/prodrive/atlas/ld_config.c
A src/mainboard/prodrive/atlas/ld_config.h
M src/mainboard/prodrive/atlas/mainboard.c
A src/mainboard/prodrive/atlas/smbios.c
A src/mainboard/prodrive/atlas/vpd.c
A src/mainboard/prodrive/atlas/vpd.h
10 files changed, 528 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/37/68137/2

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