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path: root/src/soc/amd/common/block/lpc/espi_util.c
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2020-06-02src: Remove redundant includesElyes HAOUAS
<types.h> is supposed to provide <commonlib/bsd/cb_err.h>, <stdbool.h>,<stdint.h> and <stddef.h>. So remove those includes each time when <types.h> is included. Change-Id: I886f02255099f3005852a2e6095b21ca86a940ed Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41817 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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>