tree 85b74e79c3b83f365f2f8dd2c1eaf8eb4b7a8de1
parent 9af50e2fc71de34a005461a3b0e67803034f36e5
author Joel Stanley <joel@jms.id.au> 1534129185 +0930
committer Andrew Geissler <geissonator@yahoo.com> 1534433675 +0000

openpower: Add ASPEED LPC Control tool

This includes the 'pnorboot' tool for configuring the LPC firmware
mapping.

This is used by Palmetto instead of mboxd, as Palmetto only requires the
LPC mapping component. The mbox component causes interrupts to be
continually triggered on the host, causing unnecessary CPU load.

As Palmetto is the only in-tree user of this tool, the service file hard
codes the PNOR size. If we merge machines in the future this should be
configured by the machine layer.

Resolves: openbmc/openbmc#3357
Tested: Booted host on Palmetto, checked interrupt count
Change-Id: I87daafa5008e978afd3a5fc386b347b014624911
Signed-off-by: Joel Stanley <joel@jms.id.au>