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2021-10-15soc/amd/cezanne,picasso/uart: implement read_resourceFelix Held
Implement the read_resources function for the UART devices so that the resource allocator knows about their fixed MMIO resources when enabled. TEST=UART still works on Mandolin. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I4ffddee3f5f4281aca98ddfcefa639dfb7a38dae Reviewed-on: https://review.coreboot.org/c/coreboot/+/58306 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-09-23soc/amd/common/blocks/include: rename gpio_banks.h to gpio.hFelix Held
This brings the AMD SoC GPIO code in line with the Intel SoC code and removes the not really needed suffix. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ie2dbec81dfe503869beb2872b01a7475e2b88b33 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57842 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-09-23soc/amd: rename program_gpios to gpio_configure_padsFelix Held
Use the same function name as in soc/intel for this functionality. This also brings the function name more in line with the extended version of this function gpio_configure_pads_with_override which additionally supports passing a GPIO override configuration. This might cause some pain for out-of-tree boards, but at some point this should be made more consistent, so I don't see a too strong reason not to do this. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I88852e040f79861ce7d190bf2203f9e0ce156690 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57837 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-06-16soc/amd/picasso: factor out AOAC offset definesFelix Held
Factoring out those defines allows using them easily in the ACPI code without having to use preprocessor macros. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I99cb03de8782a0eeeb505f567b982099b0e8a18d Reviewed-on: https://review.coreboot.org/c/coreboot/+/55531 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-02-17soc/amd/picasso/uart: move uart_inject_ssdt to common codeFelix Held
Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ic033fc2817d44ff873f93a45e069c0e8aa0be99f Reviewed-on: https://review.coreboot.org/c/coreboot/+/50780 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2021-01-15soc/amd/cezanne,picasso/uart: remove unneeded struct nameFelix Held
This struct isn't used anywhere else, so there's no need to name it. Change-Id: I22eda07f14096d2b7400e6ab715641ffd68fbc08 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reported-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49444 Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-14soc/amd/picasso/uart: add missing device/device.h includeFelix Held
Change-Id: Ie3188d36e8ecacab42818c8619122751fcb7cdf8 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49379 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-14soc/amd/piasso/uart: move get_uart_base prototype to common code headerFelix Held
This will result in less code duplication when the common AMD SoC UART support gets used for more AMD SoCs. Change-Id: Id1786f32324de3e3947d792c599e2019705c5a85 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49373 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-01-14soc/amd/picasso: remove broken and unused legacy UART supportFelix Held
The UARTs in the Picasso SoC are memory mapped, but there is also some hardware support that isn't used by any board to make the UARTs behave like the ones found on legacy x86 machines from the 90s. In the MMIO mode the MMIO address of the UART controller is passed to the OS via ACPI. The OS expects the base clock of the UART controller to be 48MHz (see the cz_uart_desc struct in drivers/acpi/acpi_apd.c and drivers/tty/serial/8250/8250_dw.c in the Linux kernel) in this case. It is also possible to enable additional decodes from four 8 byte legacy I/O locations used for serial ports to the different UART controllers, which doesn't disable the MMIO access though. The legacy I/O-mapped serial ports are usually expected to have a base clock of 16*115200Hz which the hardware can also provide to the UART's baud rate generator. So there are two possible valid configurations to use the UARTs; either MMIO access in combination with a 48MHz base clock or the legacy I/O decode with a ~1.8MHz base clock. The existing code unconditionally generates ACPI objects for all enabled UARTs, so those shouldn't be put into legacy mode and switching the base clock to ~1.8MHz was only done in the case that the UART was used as coreboot console UART which still used the MMIO access, but the lower base clock. Since no board even selects this option and it's rather invasive to properly implement this feature, just drop the corresponding broken code. TEST=SoC UART console still works on Mandolin. Change-Id: I26fa8fdfc781b583ba56ac4dbcbbfb6100e84852 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reported-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49371 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-11soc/amd/picasso: rename PICASSO_CONSOLE_UART to AMD_SOC_CONSOLE_UARTFelix Held
This allows factoring out the common initialization for the integrated UARTs. Change-Id: I7399a13b9280b732086c6f8e6dfd9f1207d8c8ff Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48508 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-02soc/amd: factor out common AOAC device enable and status query functionsFelix Held
The code on Stoneyridge didn't set the FCH_AOAC_TARGET_DEVICE_STATE bits to FCH_AOAC_D0_INITIALIZED like the code for Picasso does, but that is the default value after reset for those bits on both platforms. Change-Id: I7cae23257ae54da73b713fe88aca5edfa4656754 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48183 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-09-17soc/amd/picasso: Clean up legacy UART configRob Barnes
Clean up configuration of the legacy UART and add Kconfig options for the mapping between UART and legacy I/O decode. BUG=b:143283592 BUG=b:153675918 TEST=Linux detects an additional legacy serial port for each active MMIO one if PICASSO_UART_LEGACY is selected. BRANCH=zork Signed-off-by: Rob Barnes <robbarnes@google.com> Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Id08ff6428d4019303ebb6e44e13aba480cf1fde2 Reviewed-on: https://chromium-review.googlesource.com/2037891 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40322 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-09-13soc/amd/picasso/uart: make AOAC device ID in uart_enable unsignedFelix Held
This change is separate from CB:45308 to only have the directly UART- related changes in this patch train. BRANCH=zork Change-Id: Ie587fdbd1e6229c1374fce3568c6a361577dc6c4 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45310 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-09-13soc/amd/picasso/uart: add missing types.h includeFelix Held
BRANCH=zork Change-Id: I51923d72a2ad8dceeef11e15fb6765262dd514d9 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45309 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-09-12soc/amd/picasso/uart: make index parameters unsignedFelix Held
The UART index is never negative, so make it unsigned and drop the check for the index to be non-negative. BRANCH=zork Change-Id: I38b5dad87f8af4fbe8ee1d919230efe48f68686c Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45292 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-06-19soc/amd/picasso/uart: factor out console-related functionsFelix Held
Move uart_platform_base and uart_platform_refclk to their own compilation unit to avoid preprocessor usage. The newly created compilation unit is only added to the build when PICASSO_CONSOLE_UART is selected. Change-Id: I56911addc8c000a0772156e5166720867cdd26fe Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42517 Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-18soc/amd/picasso: Add ability to enable/disable UART to device treeRaul E Rangel
If we are not using the UARTs or they don't have the correct GPIOs configured we should let the mainboard disable them. BUG=b:153001807 TEST=Dump SSDT and see UART device is disabled Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ifc04e36e0ebe5cce4b6cc228c7174dc76f2ffa4a Reviewed-on: https://review.coreboot.org/c/coreboot/+/42327 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-06-17soc/amd/picasso: rename PICASSO_UART Kconfig optionFelix Held
The PICASSO_UART Kconfig option is about using the internal MMIO UART controllers in Picasso for console, so rename it to PICASSO_CONSOLE_UART Change-Id: I38ac9ee96af826fe49307b4d0e055a43fcbd4334 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2020-06-17soc/amd/picasso: fix build if PICASSO_UART is unsetFurquan Shaikh
This change includes uart.c in bootblock, romstage, ramstage and verstage unconditionally because this file is handling more than just the UART console configuration. This allows boards to take advantage of picasso_uart_mmio_ops even if PICASSO_UART is not selected. uart_platform_base and uart_platform_refclk mustn't be provided if PICASSO_UART is unset, so add an #if around those functions. BUG=b:158346697 TEST=Mandolin builds again. Change-Id: If1173034b0d2ed32f77241768e1e8abb208aac3a Signed-off-by: Furquan Shaikh <furquan@google.com> Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42339 Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-14soc/amd/picasso: Explicitly disable legacy UARTRaul E Rangel
The legacy UARTs are supposed to default to off according to the documentation (PPR for AMD Family 17h Model 18h). But legacy UART Range_0 is enabled after reset. The PSP might be enabling it or the documentation might be wrong. Having it enabled causes problems though. We have ACPI nodes defining MMIO UARTs, and the kernel also probes for legacy UARTs. This results in two drivers accessing the same device, one via MMIO and one via IO. I suspect this was the cause of the garbage serial output. Before the change you would see the following in the console: [ 0.741108] serial8250: ttyS3 at I/O 0x2e8 (irq = 3, base_baud = 115200) is a 16550A After this change, we no longer see it. BUG=b:152079780, b:157858890 TEST=Boot trembyle and make sure serial is still working. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I9d837e449b961dbb55d1301d2107838e26b3f892 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42323 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-06-11soc/amd/picasso/uart: fix possible out of bounds accessFelix Held
Found-by: Coverity CID 1429769, 1429777 Change-Id: Ide188379a34c769c929bf7832fd94a7004c09a64 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42253 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-06soc/amd/picasso: Add device operations for UART MMIO devicesFurquan Shaikh
This change adds device_operations for UART MMIO devices that provides following operations: 1. uart_acpi_name: Returns ACPI name of UART device. Generation of UART device node is not yet moved to SSDT, but will be done in follow-up CLs. 2. scan_bus: Uses scan_static_bus to scan devices added under the UART devices. This allows mainboard to add devices under the UART MMIO device. Change-Id: I18abbe88952e7006668657eb1d0c177e53e95850 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42068 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: 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) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-05soc/amd: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I22fffa0eab006be2bad4d3dd776b22ad9830faef Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40129 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-03-18soc: Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I4c110f60b764c97fab2a29f6f04680196f156da5 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39610 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2019-12-04Change all clrsetbits_leXX() to clrsetbitsXX()Julius Werner
This patch changes all existing instances of clrsetbits_leXX() to the new endian-independent clrsetbitsXX(), after double-checking that they're all in SoC-specific code operating on CPU registers and not actually trying to make an endian conversion. This patch was created by running sed -i -e 's/\([cs][le][rt]bits\)_le\([136][624]\)/\1\2/g' across the codebase and cleaning up formatting a bit. Change-Id: I7fc3e736e5fe927da8960fdcd2aae607b62b5ff4 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37433 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-20soc/amd/picasso: Update UARTsMarshall Dawson
Add a function to uart.c to ensure the right IOMux settings are programmed for the console UART. Update Kconfig to reflect the new addresses. Give the user the ability to downclock the UARTs' refclock to 1.8342MHz. Add the abiltiy to use an APU UART at a legacy I/O address. Update the AOAC register configuration for the two additional UARTs. Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Change-Id: I74579674544f0edd2c0e6c4963270b442668e62f Reviewed-on: https://review.coreboot.org/c/coreboot/+/33767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2019-07-02soc/amd/picasso: Create picasso as a copy of stoneyridgeMartin Roth
So that everyone can see what's being updated from stoney, we're starting with a direct copy of the stoney directory. There are arguments both for and against doing it this way, but I believe This the most transparent way. We've moved much of the duplicated stoney code into the soc/amd/common directory and will continue that work as it becomes obvious that we have unchanged code between the SOCs. Makefile.inc has been renamed as makefile.inc so that it won't build in jenkins until the directory is updated. Other than that change, this is an exact copy of the stoneyridge SOC directory which will be updated in the follow-on commits in the patch train. TEST=None BUG=b:130804851 Signed-off-by: Martin Roth <martinroth@chromium.org> Change-Id: I6809bd1eea304f76dd9000c079b3ed09f94dbd3b Reviewed-on: https://review.coreboot.org/c/coreboot/+/32407 Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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