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path: root/src/soc/amd/common/block/include/amdblocks/espi.h
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2020-11-16soc/amd/common/block: drop double underscores from include guardsFelix Held
Since coreboot is written in C and not C++, having the double underscores as a prefix is not an issue, but it also doesn't add much information, so drop them and the trailing ones as well. Change-Id: I1028fb9097efab8ffae5ffa9fe85a97feebc78a9 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47583 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-13soc/amd/common/block/include: make include guards more uniformFelix Held
TEST=Timeless build doesn't change for Mandolin and Gardenia. Change-Id: I5d3ae1459c333658f4c86388f1822d92ca13c658 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47514 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jeremy Soller <jeremy@system76.com> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-07-03soc/amd/common: fix eSPI virtual wire polarity encodingAaron Durbin
eSPI interrupts are active level high. The eSPI polarity register in the chipset inverts incoming signals if the corresonding bit is 0 in the register. Therefore, all active high (edge or level) virtual wire interrupts need to ensure they are not inverted. And really the sender of the interrupts should be conforming to the the eSPI spec. As such inverting any signals should not be necessary, but this register in the chipset allows for fixing up those misbehaviors. BUG=b:157984427 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I7346bb0484506d96d7ab2e6d046ffa0571683a48 Reviewed-on: https://review.coreboot.org/c/coreboot/+/43010 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-05-13soc/amd/common/block: Add support for configuring eSPI connection to slaveFurquan Shaikh
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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41272 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13Remove new additions of "this file is part of" linesFurquan Shaikh
CB:41194 got rid of "this file is part of" lines. However, there are some changes that landed right around the same time including those lines. This change uses the following command to drop the lines from new files: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: Ic3c1d717416f6b7e946f84748e2b260552c06a1b Reviewed-on: https://review.coreboot.org/c/coreboot/+/41342 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-12soc/amd/common/block/lpc: Provide an option to use static eSPI BARFurquan Shaikh
This change provides a helper function espi_update_static_bar() that informs the eSPI common driver about the static BAR to use for eSPI controller instead of reading the SPIBASE. This is required to support the case of verstage running on PSP. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I1f11bb2e29ea0acd71ba6984e42573cfe914e5d7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41256 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2020-05-12soc/amd/common/block/lpc: Add helpers for managing eSPI decodeFurquan Shaikh
This change adds the following helper functions for eSPI decode: 1. espi_open_io_window() - Open generic IO window decoded by eSPI 2. espi_open_mmio_window() - Open generic MMIO window decoded by eSPI 3. espi_configure_decodes() - Configures standard and generic I/O windows using the espi configuration provided by mainboard in device tree. BUG=b:153675913,b:154445472 Change-Id: Idb49ef0477280eb46ecad65131d4cd7357618941 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41073 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-12soc/amd/common/block: Add header file for eSPI register definitionsFurquan Shaikh
This change adds eSPI register definitions for I/O and MMIO decode using eSPI on AMD SoCs. Additionally, it also adds a macro to define the offset of ESPI MMIO base from SPI MMIO base. BUG=b:153675913 Change-Id: Ifb70ae0c63cc823334a1d851faf4dda6d1c1fc1a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41072 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>