Hello build bot (Jenkins), Raul Rangel, Eric Peers, Aaron Durbin,
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/41272
to look at the new patch set (#5).
Change subject: soc/amd/common/block: Add support for configuring eSPI connection to slave ......................................................................
soc/amd/common/block: Add support for configuring eSPI connection to slave
This change adds a helper function espi_setup() which allows SoCs to configure connection to slave. Most of the configuration is dependent upon mainboard settings in espi_config done as part of the device tree. The general flow for setup involves the following steps: 1. Set initial configuration (lowest operating frequency and single mode). 2. Perform in-band reset and set initial configuration since the settings would be lost by the reset. 3. Read slave capabilities. 4. Set slave configuration based on mainboard settings. 5. Perform eSPI host controller configuration to match the slave configuration and set polarities for VW interrupts. 6. Perform VW channel setup and deassert PLTRST#. 7. Perform peripheral channel setup. 8. Perform OOB channel setup. 9. Perform flash channel setup. 10. Enable subtractive decoding if requested by mainboard.
BUG=b:153675913
Signed-off-by: Furquan Shaikh furquan@google.com Change-Id: I872ec09cd92e9bb53f22e38d2773f3491355279e --- M src/soc/amd/common/block/include/amdblocks/espi.h M src/soc/amd/common/block/lpc/espi_util.c 2 files changed, 691 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/72/41272/5