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Pull ARM SoC platform updates from Olof Johansson:
"SoC changes, a substantial part of this is cleanup of some of the
older platforms that used to have a bunch of board files.
In particular:
- Remove non-DT i.MX platforms that haven't seen activity in years,
it's time to remove them.
- A bunch of cleanup and removal of platform data for TI/OMAP
platforms, moving over to genpd for power/reset control (yay!)
- Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
closer to multiplatform support (not quite there yet, but getting
close).
There are a few other changes too, smaller fixlets, etc. For new
platform support, the primary ones are:
- New SoC: Hisilicon SD5203, ARM926EJ-S platform.
- Cpufreq support for i.MX7ULP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
ARM: mstar: Select MStar intc
ARM: stm32: Replace HTTP links with HTTPS ones
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
ARM: omap3: enable off mode automatically
clk: imx: imx35: Remove mx35_clocks_init()
clk: imx: imx31: Remove mx31_clocks_init()
clk: imx: imx27: Remove mx27_clocks_init()
ARM: imx: Remove unused definitions
ARM: imx35: Retrieve the IIM base address from devicetree
ARM: imx3: Retrieve the AVIC base address from devicetree
ARM: imx3: Retrieve the CCM base address from devicetree
ARM: imx31: Retrieve the IIM base address from devicetree
ARM: imx27: Retrieve the CCM base address from devicetree
ARM: imx27: Retrieve the SYSCTRL base address from devicetree
ARM: s3c64xx: bring back notes from removed debug-macro.S
ARM: s3c24xx: fix Wunused-variable warning on !MMU
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
MAINTAINERS: mark linux-samsung-soc list non-moderated
ARM: imx: Remove remnant board file support pieces
...
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Instead of a flow control selection mechanism specifically for
8250, make this available for all debug UARTs. If the debug
UART supports waiting for CTS to be asserted, then this code
can be activated for terminals that need it.
We keep the defaults for EBSA110, Footbridge, Gemini and RPC
so that this still works as expected for these older platforms:
they assume that flow control shall be enabled for debug
prints.
I switch the location of the check for
ifdef CONFIG_DEBUG_UART_FLOW_CONTROL from the actual debug
UART drivers: the code would get compiled-out for 8250 and
Tegra unless their custom config (or passing -DFLOW_CONTROL
in the Tegra case) was not set. Instead this is conditional
at the three places where we print debug messages. The idea
is that debug UARTs can be implemented without this ifdef
boilerplate so they look cleaner, alas the ifdef has to be
somewhere.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This patch was triggered by a remark from Russell that
introducing a call to the waituart (needed to fix debug prints
on the Qualcomm platforms) was dangerous because in some cases
this will involve waiting for a modem CTS (clear to send)
signal, and debug messages would maybe not work on platforms
with no modem connected to the UART port: they will just
hang waiting for the modem to assert CTS and this might never
happen.
Looking through all UART debug drivers implementing the waituart
macro I discovered that all users except two actually use this
macro to check if the UART is ready for TX, let's call this
TXRDY.
Only two debug UART drivers actually check for CTS:
- arch/arm/include/debug/8250.S
- arch/arm/include/debug/tegra.S
The former is very significant since the 8250 is possibly
the most common UART on the planet.
We have the following problem: the semantics of waituart are
ambiguous making it dangerous to introduce the macro to debug
code fixing debug prints for Qualcomm. To start to pry this
problem apart, this patch does the following:
- Convert all debug UART drivers to define two macros:
- waituartcts with the clear semantic to wait for CTS
to be asserted
- waituarttxrdy with the clear semantic to wait for the TX
capability of the UART to be ready
- When doing this take care to assign the right function to
each drivers macro, so they now do exactly the above.
- Update the three sites in the kernel invoking the waituart
macro to call waituartcts/waituarttxrdy in sequence, so that
the functional impact on the kernel should be zero.
After this we can start to change the code sites using this
code to do the right thing.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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72165 has the same memory map as 7278 and the same physical address for
the UART, alias the definition accordingly.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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72164 has the same memory map as 7278 and the same physical address for
the UART, alias the definition accordingly.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Add support of early console for STM32MP1. Default UART instance is UART4,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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Add support of early console for STM32H7. Default UART instance is USART1,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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Early console is hardcoded on USART1 in current implementation.
With this patch, default UART instance is USART1, but other UART instances
can be configured by setting physical and virtual base addresses in
menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
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7216 has the same memory map as 7278 and the same physical address for
the UART, alias the definition accordingly.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
[florian: expand commit message]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/soc
Renesas ARM SoC updates for v5.4
- Low-level debugging support for RZ/A2M.
* tag 'renesas-arm-soc-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
ARM: debug-ll: Add support for r7s9210
Link: https://lore.kernel.org/r/20190823123643.18799-3-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable low-level debugging support for RZ/A2M (r7s9210).
The RZA2MEVB board uses either SCIF2 (SDRAM enabled) or SCIF4 (HyperRAM
only) for the serial console.
Note that "SCIFA" serial ports on RZ/A2 SoCs use a compressed register
layout, hence add support for that to renesas-scif.S.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into arm/soc
This is a slew of Ux500 updates for the v5.4 kernel cycle:
- Stop populating the PRCMU devices from the core CPU
file, it works just fine at device_initcall() level.
- Add a missing of_node_put() in the core file.
- Simplify the debug UART code.
- Add myself to MAINTAINERS
* tag 'ux500-v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
MAINTAINERS: add soc/ux500
ARM: ux500: simplify and move debug UART
ARM: ux500: add missing of_node_put()
ARM: ux500: Stop populating the PRCMU devices early
Link: https://lore.kernel.org/r/CACRpkdbH-h5fRwuidcpeOp8mtRoKUW65SAk8a4A==BCDzn3QMA@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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ks8695 is an older SoC originally made by Kendin, which was later acquired
by Micrel, and subsequently by Microchip.
The platform port was originally contributed by Andrew Victor and Ben
Dooks, and later maintained by Greg Ungerer.
When I recently submitted cleanups, but Greg noted that the platform no
longer boots and nobody is using it any more, we decided to remove it.
Link: https://lore.kernel.org/r/20190809202749.742267-2-arnd@arndb.de
Cc: Andrew Victor <linux@maxim.org.za>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Link: https://wikidevi.com/wiki/Micrel
Link: https://lore.kernel.org/linux-arm-kernel/2bc41895-d4f9-896c-0726-0b2862fcbf25@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The debug UART code defined three different virtual addresses
while only one is ever used. Get rid of this, and move the
UART remapping to 0xfffe8000 where DTCM reside on some platforms
but not on Ux500, so it can be reused moving the UART out of the
vmalloc area.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Pull ARM SoC platform updates from Olof Johansson:
"SoC platform changes. Main theme this merge window:
- The Netx platform (Netx 100/500) platform is removed by Linus
Walleij-- the SoC doesn't have active maintainers with hardware,
and in discussions with the vendor the agreement was that it's OK
to remove.
- Russell King has a series of patches that cleans up and refactors
SA1101 and RiscPC support"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
ARM: stm32: use "depends on" instead of "if" after prompt
ARM: sa1100: convert to common clock framework
ARM: exynos: Cleanup cppcheck shifting warning
ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view
ARM: exynos: Only build MCPM support if used
arm: add missing include platform-data/atmel.h
ARM: davinci: Use GPIO lookup table for DA850 LEDs
ARM: OMAP2: drop explicit assembler architecture
ARM: use arch_extension directive instead of arch argument
ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading
ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB
ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB
ARM: riscpc: enable chained scatterlist support
ARM: riscpc: reduce IRQ handling code
ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
ARM: riscpc: parse video information from tagged list
ARM: riscpc: add ecard quirk for Atomwide 3port serial card
MAINTAINERS: mvebu: Add git entry
soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh
ARM: OMAP2+: Make some variables static
...
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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into arm/soc
This deletes the NetX 100/500 machine support.
After discussing with the subarch maintainers and Hilscher,
we concluded that the netx subarchitecture (Netx 100/500)
is no longer maintained or tested, and noone will miss it
if we delete it. So delete it.
There is a newer Netx 4000 architecture which we may see
included at some point, but this will be supported using
the standard multiplatform and devicetree mechanisms and is
easier to develop from scratch.
* tag 'armsoc-drop-netx-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: delete netx machine
Signed-off-by: Olof Johansson <olof@lixom.net>
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Based on 1 normalized pattern(s):
this software is licensed under the terms of the gnu general public
license version 2 as published by the free software foundation and
may be copied distributed and modified under those terms this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 285 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After discussing with the subarch maintainers and Hilscher,
we concluded that the netx subarchitecture (Netx 100/500)
is no longer maintained or tested, and noone will miss it
if we delete it. So delete it.
There is a newer Netx 4000 architecture which we may see
included at some point, but this will be supported using
the standard multiplatform and devicetree mechanisms and is
easier to develop from scratch.
Cc: Michael Trensch <MTrensch@hilscher.com>
Acked-By: Robert Schwebel <r.schwebel@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Based on 1 normalized pattern(s):
licensed under gplv2 or later
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 118 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.961286471@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use unified assembler syntax (UAL) in assembly files. Divided
syntax is considered deprecated. This will also allow to build
the kernel using LLVM's integrated assembler.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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into next/soc
This pull request contains Broadcom ARM-based SoCs machine files updates
for 4.21, please pull the following:
- Stefan switches relevant BCM283x files under arch/arm/mach-bcm to the
SPDX license identifiers
- Justin adds an entry in the Broadcom STB debug LL stub for 7255
- Florian enables reset controller support for BCM63xx SoCs
* tag 'arm-soc/for-4.21/soc' of https://github.com/Broadcom/stblinux:
ARM: mach-bcm: Switch bcm2835 and platsmp to SPDX identifier
ARM: BCM63XX: Enable reset controller support
ARM: brcmstb: Add entry for 7255
Signed-off-by: Olof Johansson <olof@lixom.net>
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This adds low-level debug support on USART1 for STM32F4
and STM32F7.
Compiled via 'CONFIG_DEBUG_LL' and 'CONFIG_EARLY_PRINTK'.
Enabled via 'earlyprintk' in bootargs.
Signed-off-by: Gerald Baeza <gerald.baeza@st.com>
Signed-off-by: Bich Hemon <bich.hemon@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add in BCM7255 entry and reorder entries to keep ascending order. Also
moved 7278 cause it was out of order.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The 7278 device is the first device that includes support for the V7
memory map developed for use in 64-bit architecture brcmstb devices.
This map relocates the register physical offset from 0xF0000000 to
0x0000000008000000.
Since the ARM PERIPHBASE value is also relocated in the V7 memory map
we can use its value to determine whether this device uses the new
V7 memory map and therefore where to look for the SUN_TOP_CTRL
register used to identify the chip family.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Replace GPL license statements with SPDX GPL-2.0 and GPL-2.0+ license
identifiers.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann:
"Most of the commits are for defconfig changes, to enable newly added
drivers or features that people have started using. For the changed
lines lines, we have mostly cleanups, the affected platforms are OMAP,
Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions.
The largest single change is the introduction of the TI "sysc" bus
driver, with the intention of cleaning up more legacy code.
Two new SoC platforms get added this time:
- Allwinner R40 is a modernized version of the A20 chip, now with a
Quad-Core ARM Cortex-A7. According to the manufacturer, it is
intended for "Smart Hardware"
- Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family of
chips meant for managed gigabit ethernet switches, based around a
Cortex-A9 CPU.
Finally, we gain SMP support for two platforms: Renesas R-Car E2 and
Amlogic Meson8/8b, which were previously added but only supported
uniprocessor operation"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
ARM: multi_v7_defconfig: Select RPMSG_VIRTIO as module
ARM: multi_v7_defconfig: enable CONFIG_GPIO_UNIPHIER
arm64: defconfig: enable CONFIG_GPIO_UNIPHIER
ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b
ARM: meson: Add SMP bringup code for Meson8 and Meson8b
ARM: smp_scu: allow the platform code to read the SCU CPU status
ARM: smp_scu: add a helper for powering on a specific CPU
dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation
ARM: OMAP3: Delete an unnecessary variable initialisation in omap3xxx_hwmod_init()
ARM: OMAP3: Use common error handling code in omap3xxx_hwmod_init()
ARM: defconfig: select the right SX150X driver
arm64: defconfig: Enable QCOM_IOMMU
arm64: Add ThunderX drivers to defconfig
arm64: defconfig: Enable Tegra PCI controller
cpufreq: imx6q: Move speed grading check to cpufreq driver
arm64: defconfig: re-enable Qualcomm DB410c USB
ARM: configs: stm32: Add MDMA support in STM32 defconfig
ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1
bus: ti-sysc: Fix unbalanced pm_runtime_enable by adding remove
bus: ti-sysc: mark PM functions as __maybe_unused
...
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Building a big-endian kernel for ARCH_BRCMSTB revealed that we would not
be correctly polling for the right bit in the busyuart macro, turns out
there are a few transformations needed to work with big-endian kernels.
First we need to swap the value we read from SUN_TOP_CTRL to properly
compare it against our local tables. Then, just like 8250.S we need to
swap the value before storing it, and conversely swap it after a load.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Pull ARM updates from Russell King:
"Low priority fixes and updates for ARM:
- add some missing includes
- efficiency improvements in system call entry code when tracing is
enabled
- ensure ARMv6+ is always built as EABI
- export save_stack_trace_tsk()
- fix fatal signal handling during mm fault
- build translation table base address register from scratch
- appropriately align the .data section to a word boundary where we
rely on that data being word aligned"
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8691/1: Export save_stack_trace_tsk()
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
ARM: 8690/1: lpae: build TTB control register value from scratch in v7_ttb_setup
ARM: align .data section
ARM: always enable AEABI for ARMv6+
ARM: avoid saving and restoring registers unnecessarily
ARM: move PC value into r9
ARM: obtain thread info structure later
ARM: use aliases for registers in entry-common
ARM: 8689/1: scu: add missing errno include
ARM: 8688/1: pm: add missing types include
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Robert Jarzmik reports that his PXA25x system fails to boot with 4.12,
failing at __flush_whole_cache in arch/arm/mm/proc-xscale.S:215:
0xc0019e20 <+0>: ldr r1, [pc, #788]
0xc0019e24 <+4>: ldr r0, [r1] <== here
with r1 containing 0xc06f82cd, which is the address of "clean_addr".
Examination of the System.map shows:
c06f22c8 D user_pmd_table
c06f22cc d __warned.19178
c06f22cd d clean_addr
indicating that a .data.unlikely section has appeared just before the
.data section from proc-xscale.S. According to objdump -h, it appears
that our assembly files default their .data alignment to 2**0, which
is bad news if the preceding .data section size is not power-of-2
aligned at link time.
Add the appropriate .align directives to all assembly files in arch/arm
that are missing them where we require an appropriate alignment.
Reported-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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We want to use generic 8250 debug_ll code to get DEBUG_UNCOMPRESS
working and to simplify the code. The old debug_ll code is no longer
needed and the machine ID based detection is no longer used.
Note that for most part there's no need to keep DEBUG_LL enabled.
We now have CONFIG_SERIAL_EARLYCON working very early as long as
the kernel cmdline has "earlycon" in it and the board specific dts
file has chosen configured with with the port using stdout-path.
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We want to use generic 8250 debug_ll code to get DEBUG_UNCOMPRESS
working and to simplify the code. The old debug_ll code is no longer
needed and the machine ID based detection is no longer used.
Note that for most part there's no need to keep DEBUG_LL enabled.
We now have CONFIG_SERIAL_EARLYCON working very early as long as
the kernel cmdline has "earlycon" in it and the board specific dts
file has chosen configured with with the port using stdout-path.
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We want to use generic 8250 debug_ll code to get DEBUG_UNCOMPRESS
working and to simplify the code. The old debug_ll code is no longer
needed and the machine ID based detection is no longer used.
Note that for most part there's no need to keep DEBUG_LL enabled.
We now have CONFIG_SERIAL_EARLYCON working very early as long as
the kernel cmdline has "earlycon" in it and the board specific dts
file has chosen configured with with the port using stdout-path.
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We want to use generic 8250 debug_ll code to get DEBUG_UNCOMPRESS
working and to simplify the code. The old debug_ll code is no longer
needed and the machine ID based detection is no longer used.
Note that for most part there's no need to keep DEBUG_LL enabled.
We now have CONFIG_SERIAL_EARLYCON working very early as long as
the kernel cmdline has "earlycon" in it and the board specific dts
file has chosen configured with with the port using stdout-path.
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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BCM7260 has the same UART base address as 7268, order the entries by
ascending chip number and alias the 7268 definition to the 7260
definition.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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The SUN_TOP_CTRL_FAMILY_ID register is at a fixed absolute address for
all of our supported chips, so utilize its value to determine what the
UARTA base address should be based on the value we read.
Since the code is called both during decompressor when the MMU is off,
and after the MMU has been turned on in the kernel, and we want to do
the lookup only once, we use the same technique as tegra.S and have a
shared storage location between the decompressor and the kernel.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Last CLPS711X CPU register is PLLR has 0xa5a8 address, so we can reduce
the map to 48k and align the end of the static at VMALLOC_START.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc
Samsung mach/soc update for v4.8, part 2:
1. Endian-friendly fixes.
2. Maintainers update.
* tag 'samsung-soc-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
MAINTAINERS: Extend Samsung SoC entry with S3C/S5P drivers
ARM: SAMSUNG: Fix missing s5p_init_cpu() declaration
ARM: EXYNOS: Fix UART address selection for DEBUG_LL
ARM: EXYNOS: Fixup for __raw operations in suspend.c
ARM: SAMSUNG: Fixup usage of __raw IO in PM
ARM: EXYNOS: Fixup endian in pm/pmu
ARM: EXYNOS: Fixups for big-endian operation
ARM: SAMSUNG: Fixup endian issues in CPU detection
ARM: EXYNOS: Fixup debug macros for big-endian
ARM: s3c24xx: Sort cpufreq tables
ARM: SAMSUNG: Fix typos
Signed-off-by: Olof Johansson <olof@lixom.net>
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The Exynos542x SoCs using A15+A7 can boot to A15 or A7. If it boots using
A7 (like on Odroid XU family boards), it can't choose right UART
physical address only the part number of CP15. Fix the detection logic
by checking the Cluster ID additionally.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
[k.kozlowski: Extend commit message]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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The exynos low-level debug macros need to be fixed if the system is being
built big endian. Add the necessary endian swaps for accessing the registers
to get output working again
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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AT91 still uses an offset (0x0100 0000) from the physical address to map
the debug UART. This is unfortunate as for some platforms (sama5d3 and
earlier), it ends up in the PCI zone and PCI is enabled in multi_v7.
Switch to DEBUG_UART_VIRT to solve that.
Tested on sama5d3 and 9g20.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
Merge "i.MX SoC update for 4.6" from Shawn Guo:
- Enable big endian mode support for i.MX platform
- Add support for i.MX6QP SoC which is the latest i.MX6 family addition
- Add basic suspend/resume support for i.MX25
- A couple of i.MX7D support updates
- A few random code cleanups
* tag 'imx-soc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: Make reset_control_ops const
ARM: imx: Do L2 errata only if the L2 cache isn't enabled
ARM: imx: select ARM_CPU_SUSPEND only for imx6
ARM: mx25: Add basic suspend/resume support
ARM: imx: Add msl code support for imx6qp
ARM: imx: enable big endian mode
ARM: imx: use endian-safe readl/readw/writel/writew
ARM: imx7d: correct chip version information
ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D
ARM: imx6: fix cleanup path in imx6q_suspend_init()
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In an invalid randconfig build (fixed by another patch),
I ran across this warning:
arch/arm/include/debug/at91.S:18:0: error: "CONFIG_DEBUG_UART_VIRT" redefined [-Werror]
#define CONFIG_DEBUG_UART_VIRT AT91_IO_P2V(CONFIG_DEBUG_UART_PHYS)
As Russell pointed out, we should never #define a macro starting
with CONFIG_ in a source file, as that is rather confusing.
This renames the macro to avoid the symbol clash.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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next/soc
Merge "ARM: Xilinx Zynq patches for v4.6" from Michal Simek:
- SLCR early init
- Fix L2 cache data corruption
- Fix early printk uart setting
* tag 'zynq-soc-for-4.6' of https://github.com/Xilinx/linux-xlnx:
ARM: zynq: Move early printk virtual address to vmalloc area
ARM: zynq: address L2 cache data corruption
ARM: zynq: initialize slcr mapping earlier
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The patch
"ARM: 8432/1: move VMALLOC_END from 0xff000000 to 0xff800000"
(sha1: 6ff0966052c46efb53980b8a1add2e7b49c9f560)
has moved also start of VMALLOC area because size didn't change.
That's why origin location of vmalloc was
vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
and now is
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
That's why uart virtual addresses need to be changed to reflect this new
memory setup. Starting address should be vmalloc start address.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Some SoCs use a Palmchip BK-310x UART which is mostly 16550 compatible
but with a different register layout. While this UART has previously
only been supported in MIPS based chips (Alchemy, Ralink), the ARM based
SMP87xx series from Sigma Designs also uses it.
This patch allows the debug console to work with this type of UART.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Enable ARM big-endian mode on mach-imx. This requires adding some
byte swapping in the debug functions (which otherwise hang forever)
and of course the secondary core bringup.
Tested (on top of 4.4) on i.MX6 HummingBoard quad-core (IMX6Q).
The patch is pretty much as suggested by Arnd Bergmann, thanks!
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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