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path: root/src/soc/amd/picasso/uart.c
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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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