tacoma: Remove CP0 reset

This is wired as to do nothing on normal Witherspoons, so the code to do
so has questionable utility.

On Tacoma systems, the Witherspoon motherboard is reworked to allow the
BMC to control the reset. The control is provided as part of the FSI
driver in the kernel, so it should be removed from the userspace power
control tool.

Fixing this should resolve this message when doing poweron:

 power_control.exe[250]: ERROR PowerControl: GPIO open error (gpio=BMC_CP0_RESET_N,rc=2)

The GPIO device can't be opened as the kernel has control of it.

Change-Id: Ic4d8fc9c57277325317fb9cf6e19d0df03da8002
Signed-off-by: Joel Stanley <joel@jms.id.au>
1 file changed
tree: d819f07e26f482cfc7d3cdd9ab8c501664be9a19
  1. conf/
  2. meta-fsp2/
  3. meta-palmetto/
  4. meta-romulus/
  5. recipes-core/
  6. recipes-kernel/
  7. recipes-phosphor/
  8. COPYING.apache-2.0
  9. COPYING.MIT
  10. LICENSE
  11. MAINTAINERS
  12. README.md
  13. recipes.txt
README.md

OpenEmbedded/Yocto/OpenBMC BSP layer for IBM systems

This layer provides support for the BMC firmware on IBM POWER systems server products.

This layer depends on:

URI: git://git.openembedded.org/openembedded-core
layers: meta
branch: master
revision: HEAD

URI: https://github.com/openbmc/meta-phosphor
branch: master
revision: HEAD

URI: https://github.com/openbmc/meta-openpower
branch: master
revision: HEAD

URI: https://github.com/openbmc/meta-aspeed
branch: master
revision: HEAD

The following systems are supported.

Witherspoon, or AC922, is an IBM POWER9 two-socket, 2U Accelerated Compute Server with up to 6 NVIDIA Tesla GPUs. More information can be found here.

In addition to witherspoon, this layer contains additional machine configurations such as swift. The default machine target is witherspoon, so in order to build a different configuration, or to build witherspoon after building a different one, set the MACHINE environment to the desired configuration name (see the conf/machine/ subdirectory for available options):

export MACHINE=machine_configuration_name

Then build:

bitbake obmc-phosphor-image

Example:

export MACHINE=swift
bitbake obmc-phosphor-image
bitbake phosphor-logging

export MACHINE=witherspoon
bitbake obmc-phosphor-image

Contributing

meta-ibm patches are reviewed using the Gerrit instance at https://gerrit.openbmc-project.xyz.

Please submit patches to Gerrit. More information on using Gerrit can be found here. https://github.com/openbmc/meta-ibm is a hosting mirror only and GitHub pull requests are not monitored and will not be accepted.

Patch checklist. Please ensure patches adhere to the following guidelines:

For questions or help please come join us on the mailing list or in IRC.