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2017-09-18ARM: debug-ll: Add support for r8a7745Fabrizio Castro
Enable low-level debugging support for RZ/G1E (r8a7745). RZ/G1E uses SCIF4 for the debug console. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-08-16Merge tag 'omap-for-v4.14/debug-ll-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc Pull "Updates to for omap debug_ll code to use generic DEBUG_UART_8250 code" from Tony Lindgren: The legacy code to try to detect the debug_ll uart based on machine is no longer needed, and we can remove it. Note that the Kconfig options stay the same, we just need to define the port configuration now. * tag 'omap-for-v4.14/debug-ll-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: debug: Use generic 8250 debug_ll for am3517 and am335x ARM: debug: Use generic 8250 debug_ll for ti81xx ARM: debug: Use generic 8250 debug_ll for omap3/4/5 ARM: debug: Use generic 8250 debug_ll for omap2 and omap3/4/5 common uarts
2017-07-27ARM: debug-ll: Add support for r8a7743Chris Paterson
Enable low-level debugging support for RZ/G1M (r8a7743). RZ/G1M uses SCIF0 for the debug console, like most of the R-Car Gen2 SoCs. Signed-off-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-07-17ARM: debug: Use generic 8250 debug_ll for am3517 and am335xTony Lindgren
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>
2017-07-17ARM: debug: Use generic 8250 debug_ll for ti81xxTony Lindgren
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>
2017-07-17ARM: debug: Use generic 8250 debug_ll for omap3/4/5Tony Lindgren
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>
2017-07-17ARM: debug: Use generic 8250 debug_ll for omap2 and omap3/4/5 common uartsTony Lindgren
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>
2017-06-18Merge tag 'at91-ab-4.13-soc' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/soc SoC for 4.13: - New suspend/resume mode for sama5d2 - Initial support for armv7m based SoCs * tag 'at91-ab-4.13-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: ARM: at91: remove atmel_nand_data ARM: at91: fix at91_suspend_entering_slow_clock link error ARM: at91: debug: add samv7x support ARM: at91: add armv7m SoC detection ARM: at91: handle CONFIG_PM for armv7m configurations ARM: at91: Add armv7m support ARM: at91: Document armv7m compatibles ARM: at91: Documentation: add armv7m families ARM: at91: pm: fallback to slowclock when backup mode fails ARM: at91: pm: allow selecting standby and suspend modes ARM: at91: pm: Add sama5d2 backup mode Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18Merge tag 'qcom-soc-for-4.13' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/soc Qualcomm ARM Based SoC Updates for v4.13 * Add debug UART addresses for IPQ4019 * tag 'qcom-soc-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: ARM: debug: qcom: add UART addresses to Kconfig help for IPQ4019 Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-05ARM: debug: qcom: add UART addresses to Kconfig help for IPQ4019Christian Lamparter
Add information about the IPQ4019 debug UART physical and virtual addresses in the DEBUG_QCOM_UARTDM Kconfig help section. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-06-02ARM: at91: debug: add samv7x supportSzemző András
Add support for low level debugging on Atmel samv7x. Signed-off-by: Szemző András <sza@esh.hu> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-05-14ARM: debug: add low level debug uart for rv1108Andy Yan
RK1108 UARTs are Synopsis DesignWare 8250 compatible. Only with different register addresses. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Jacob Chen <jacob2.chen@rock-chips.com> [rk1108->rv1108 rename] Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-02-07arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be commonLaura Abbott
There are multiple architectures that support CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX. These options also now have the ability to be turned off at runtime. Move these to an architecture independent location and make these options def_bool y for almost all of those arches. Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2016-09-15Merge tag 'renesas-soc-for-v4.9' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Pull "Renesas ARM Based SoC Updates for v4.9" from Simon Horman: Clean-up: * Only use smp_init when SMP is selected Enablement: * Add debug-ll support for r8a7992 * tag 'renesas-soc-for-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7791: only use smp_init when SMP is selected ARM: shmobile: r8a7790: only use smp_init when SMP is selected ARM: debug-ll: Add support for r8a7992
2016-08-17ARM: debug-ll: Add support for r8a7992Geert Uytterhoeven
Enable low-level debugging support for R-Car V2H (r8a7792). V2H uses SCIF0 for the debug console, like most other R-Car Gen2 SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2016-08-08ARM: brcmstb: Add earlyprintk support using run-time checksFlorian Fainelli
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>
2016-07-07Merge tag 'arm-soc/for-4.8/soc-part2' of http://github.com/Broadcom/stblinux ↵Arnd Bergmann
into next/soc Merge "the second part of the Broadcom ARM-based SoC changes" from Florian Fainelli: - Florian updates the DEBUG_UART_BCM5301X entry to cover both NS and NSP SoCs since they both have the same location * tag 'arm-soc/for-4.8/soc-part2' of http://github.com/Broadcom/stblinux: ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
2016-07-06ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCsFlorian Fainelli
Northstar Plus SoCs (ARCH_BCM_NSP) have the exact same UART location and properties like the register shift of 0, so make it usable. Acked-by: Jon Mason <jon.mason@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2016-06-10ARM: at91: debug: add default DEBUG_LL addressesAlexandre Belloni
Add configuration options for the most commonly used UART physical and virtual addresses to ease the use of DEBUG_LL and earlyprintk. Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-10ARM: at91: debug: use DEBUG_UART_VIRTAlexandre Belloni
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>
2016-04-26ARM: debug: remove extraneous DEBUG_HI3716_UART optionArnd Bergmann
DEBUG_HI3716_UART was supposed to be renamed to DEBUG_HIX5HD2_UART, but accidentally both got left in place, which results in a build error when CONFIG_DEBUG_UART_PHYS is not set as it should be. This removes the old symbol. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 12aae3097454 ("ARM: debug: Rename Hi3716 to HIX5HD2") Acked-by: Wei Xu <xuwei5@hisilicon.com>
2016-02-08ARM: debug: add support for Palmchip BK-310x UARTMans Rullgard
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>
2016-01-22Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A few fixes for fallout that we didn't catch in time in -next, or smaller warning fixes that have been discovered since" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: soc: qcom/spm: shut up uninitialized variable warning ARM: realview: fix device tree build ARM: debug-ll: fix BCM63xx entry for multiplatform ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz
2016-01-20Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Updates for new platform support: - New platform: Tango4 from Sigma Designs. - Broadcom BCM2836 (Raspberry Pi 2 SoC) - Enable cpufreq on Freescale i.MX7D - Rockchip: SMP support for rk3036, general support for rk3228 - SMP support on Broadcom Kona and NSP - Cleanups for OMAP removing legacy IOMMU data + a bunch of misc fixes and tweaks for various platforms" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits) ARM: tango: Fix UP build issues ARM: tango: pass ARM arch level for smc.S ARM: bcm2835: Add Kconfig support for bcm2836 ARM: OMAP2+: Add support for dm814x and dra62x usb ARM: OMAP2+: Add mmc hwmod entries for dm814x ARM: OMAP2+: Update 81xx clock and power domains for default, active and sgx ARM: OMAP2+: Fix SoC detection for dra62x j5-eco ARM: tango4: Initial platform support ARM: bcm2835: Add a compat string for bcm2836 machine probe dt-bindings: Add root properties for Raspberry Pi 2 ARM: imx: select SRC for i.MX7 ARM: uniphier: select PINCTRL ARM: OMAP2+: Remove device creation for omap-pcm-audio ARM: OMAP1: Remove device creation for omap-pcm-audio ARM: rockchip: enable support for RK3228 SoCs ARM: rockchip: use const and __initconst for rk3036 smp_operations ARM: zynq: Select ARCH_HAS_RESET_CONTROLLER ARM: BCM: Add SMP support for Broadcom 4708 ARM: BCM: Add SMP support for Broadcom NSP ARM: BCM: Clean up SMP support for Broadcom Kona ...
2016-01-20Merge tag 'armsoc-multiplatform' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform code updates from Arnd Bergmann: "This branch is the culmination of 5 years of effort to bring the ARMv6 and ARMv7 platforms together such that they can all be enabled and boot the same kernel. It has been a tremendous amount of cleanup and refactoring by a huge number of people, and creation of several new (and major) subsystems to better abstract out all the platform details in an appropriate manner. The bulk of this branch is a large patchset from Arnd that brings several of the more minor and older platforms we have closer to multiplatform support. Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview Much of this is moving around header files from old mach directories, but there are also some cleanup patches of debug_ll (lowlevel debug per-platform options) and other parts. Linus Walleij also has some patchs to clean up the older ARM Realview platforms by finally introducing DT support, and Rob Herring has some for ARM Versatile which is now DT-only. Both of these platforms are now multiplatform. Finally, a couple of patches from Russell for Dove PMU, and a fix from Valentin Rothberg for Exynos ADC, which were rebased on top of the series to avoid conflicts" * tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits) ARM: realview: don't select SMP_ON_UP for UP builds ARM: s3c: simplify s3c_irqwake_{e,}intallow definition ARM: s3c64xx: fix pm-debug compilation iio: exynos-adc: fix irqf_oneshot.cocci warnings ARM: realview: build realview-dt SMP support only when used ARM: realview: select apropriate targets ARM: realview: clean up header files ARM: realview: make all header files local ARM: no longer make CPU targets visible separately ARM: integrator: use explicit core module options ARM: realview: enable multiplatform ARM: make default platform work for NOMMU ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location ARM: defconfig: use correct debug_ll settings ARM: versatile: convert to multi-platform ARM: versatile: merge mach code into a single file ARM: versatile: switch to DT only booting and remove legacy code ARM: versatile: add DT based PCI detection ARM: pxa: mark ezx structures as __maybe_unused ARM: pxa: mark raumfeld init functions as __maybe_unused ...
2016-01-18ARM: debug-ll: fix BCM63xx entry for multiplatformArnd Bergmann
During my randconfig build testing, I found that a kernel with DEBUG_AT91_UART and ARCH_BCM_63XX fails to build: arch/arm/include/debug/at91.S:18:0: error: "CONFIG_DEBUG_UART_VIRT" redefined [-Werror] It turns out that the DEBUG_UART_BCM63XX option is enabled whenever the ARCH_BCM_63XX is, and that breaks multiplatform kernels because we then end up using the UART address from BCM63XX rather than the one we actually configured (if any). This changes the BCM63XX options to only have one Kconfig option, and only enable that if the user explicitly turns it on. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: b51312bebfa4 ("ARM: BCM63XX: add low-level UART debug support") Cc: stable@vger.kernel.org
2016-01-09arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debugDan Williams
Let all the archs that implement devmem_is_allowed() opt-in to a common definition of CONFIG_STRICT_DEVM in lib/Kconfig.debug. Cc: Kees Cook <keescook@chromium.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [heiko: drop 'default y' for s390] Acked-by: Ingo Molnar <mingo@redhat.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-12-26ARM: bcm2835: Add Kconfig support for bcm2836Eric Anholt
This should be a complete port of bcm2835 functionality to bcm2836 (Raspberry Pi 2). Signed-off-by: Eric Anholt <eric@anholt.net>
2015-12-17ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig locationArnd Bergmann
I accidentally move the DEBUG_LL_UART_EFM32 option when sorting all other options alphanumerically, but it belongs into the same group as DEBUG_LL_UART_8250 and DEBUG_LL_UART_PL01X. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 1dc9341 ("ARM: debug-ll: reorder Kconfig alphanumerically")
2015-12-15Merge branch 's3c64xx/multiplatform' into next/multiplatformArnd Bergmann
* s3c64xx/multiplatform: ARM: s3c64xx: allow building without board support ARM: s3c64xx: multiplatform support ARM: s3c64xx: use common debug-ll implementation ARM: s3c64xx: use new adc/touchscreen driver iio: exynos-adc: add experimental touchscreen support ARM: s3c64xx: enable sparse IRQ support ARM: s3c64xx: prepare initcalls for multiplatform gpio: samsung: move gpio-samsung driver back to platform code ASoC: samsung/smartq: use dynamic registration Input: s3c2410_ts: fix S3C_ADC dependency Conflicts: arch/arm/Kconfig.debug
2015-12-15ARM: debug-ll: reorder Kconfig alphanumericallyArnd Bergmann
The file has gotten a little out of sync, as platforms got added in the wrong place, or have been renamed. This moves the options around, but should not change any functionality. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: rework footbridge handlingArnd Bergmann
Footbridge has two debug ports that are handled a bit differently: The 8250 port uses the normal debug/8250.S implementation that is shared with a lot of other platforms, but it relies on the DEBUG_UART_8250 option to be turned on automatically instead of being selected by DEBUG_FOOTBRIDGE_COM1 as we do for most other platforms. I'm changing this to use a 'select' and change the dependency to the debug symbol rather than the platform symbol for consistency. The DC21285 UART has a separate top-level option, and relies on the traditional include/mach/debug-macro.S method. With the s3c64xx multiplatform series queued up for 4.5, it is now the last one that does this, so by moving this file to include/debug/dc21285.S, we can get all platforms to do things the same way. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: rework lpc32xx handlingArnd Bergmann
LPC32xx can not yet be configured in a multiplatform kernel, but if we ever get there, enabling one of the LPC32xx platforms while trying to use DEBUG_LL for another platform can default to the wrong UART address, as the options are purely based on the architecture being enabled or not. This changes the logic to use the LPC32xx default addresses only if we have also picked the respective Kconfig symbols introduced here. While we're at it, this also reorders the virtual address as it should be. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Vladimir Zapolskiy <vz@mleia.com>
2015-12-15ARM: debug-ll: rework gemini handlingArnd Bergmann
Gemini can not yet be configured in a multiplatform kernel, but if we ever get there, enabling one of the gemini platforms while trying to use DEBUG_LL for another platform can default to the wrong UART address, as the options are purely based on the architecture being enabled or not. This changes the logic to use the gemini default addresses and the flow control settings only if we have also picked the respective Kconfig symbols introduced here. While we're at it, this also reorders the virtual address as it should be. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
2015-12-15ARM: debug-ll: rework integrator/versatile handlingArnd Bergmann
Enabling one of the integrator platforms in a multiplatform kernel while trying to use DEBUG_LL for another platform can default to the wrong UART address, as the options are purely based on the architecture being enabled or not. This changes the logic to use the integrator default addresses only if we have also picked the respective Kconfig symbols introduced here. Versatile is not yet part of multiplatform, but hopefully soon will be, so we do the same change for versatile as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: rework SPEAr handlingArnd Bergmann
Enabling one of the SPEAr platforms in a multiplatform kernel while trying to use DEBUG_LL for another platform can default to the wrong UART address, as the options are purely based on the architecture being enabled or not. This changes the logic to use the SPEAr default addresses only if we have also picked the respective Kconfig symbols introduced here. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: rework ep93xx handlingArnd Bergmann
This makes ep93xx debug-ll handling more consistent with the other platforms, by adding a separate Kconfig symbol for it that in turn selects the standard DEBUG_UART_PL01X symbol. We still have to pick a physical address even if DEBUG_LL is disabled here, because the EP93xx uncompress output code uses CONFIG_DEBUG_UART_PHYS. If we ever move to multiplatform support, this can go away. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: reorganize mvebu debug uart configArnd Bergmann
As we are moving dove/mv78xx0/orion into multiplatform, the debug-ll configuration options for these platforms are conflicting with the multiplatform configuration: enabling one of those platforms sometimes changes the default addresses to the ones used on one of them, rather than the one that was selected in Kconfig. This changes the configuration so we share the physical address configuration with mach-mvebu. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15ARM: debug-ll: fix UART configuration with ARCH_KEYSTONEArnd Bergmann
We may have multiple platforms enabled and also DEBUG_LL configured for one of them. However if we enable ARCH_KEYSTONE, we default to using 32-bit UART access independent of which platform we are actually using, which can be confusing. This changes the logic so the 32-bit default gets only used by default if we actually configure the keystone UART, as opposed to picking some other 8250 setting on a kernel that has keystone support enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: s3c64xx: use common debug-ll implementationArnd Bergmann
The uart on s3c64xx is essentially the same as on s3c24xx, so we can share a single assembler file. However, the addresses are different, and we need to add the respective Kconfig magic to get the right addresses. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-11-10Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "New and/or improved SoC support for this release: Marvell Berlin: - Enable standard DT-based cpufreq - Add CPU hotplug support Freescale: - Ethernet init for i.MX7D - Suspend/resume support for i.MX6UL Allwinner: - Support for R8 chipset (used on NTC's $9 C.H.I.P board) Mediatek: - SMP support for some platforms Uniphier: - L2 support - Cleaned up SMP support, etc. plus a handful of other patches around above functionality, and a few other smaller changes" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) ARM: uniphier: rework SMP operations to use trampoline code ARM: uniphier: add outer cache support Documentation: EXYNOS: Update bootloader interface on exynos542x ARM: mvebu: add broken-idle option ARM: orion5x: use mac_pton() helper ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned ARM: sunxi: Add R8 support ARM: digicolor: select pinctrl/gpio driver arm: berlin: add CPU hotplug support arm: berlin: use non-self-cleared reset register to reset cpu ARM: mediatek: add smp bringup code ARM: mediatek: enable gpt6 on boot up to make arch timer working soc: mediatek: Fix random hang up issue while kernel init soc: ti: qmss: make acc queue support optional in the driver soc: ti: add firmware file name as part of the driver Documentation: dt: soc: Add description for knav qmss driver ARM: S3C64XX: Use PWM lookup table for mach-smartq ARM: S3C64XX: Use PWM lookup table for mach-hmt ARM: S3C64XX: Use PWM lookup table for mach-crag6410 ARM: S3C64XX: Use PWM lookup table for smdk6410 ...
2015-09-21ARM: at91: debug: use DEBUG_UART_PHYSAlexandre Belloni
Instead of having to add a new configuration option each time support for new SoC is added, use CONFIG_DEBUG_UART_PHYS. For now, CONFIG_DEBUG_UART_VIRT is automatically computed. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-09-14ARM: shmobile: remove ARCH_SHMOBILE_LEGACY optionUlrich Hecht
With Bock-W, the last legacy platform has been removed. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by: by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-08-18Merge tag 'imx-soc-4.3' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc The i.MX SoC changes for 4.3: - Add i.MX6 Ultralite SoC support, which is the newest addition to i.MX6 family. It integrates a single Cortex-A7 core and a power management module that reduces the complexity of external power supply and simplifies power sequencing. - Change SNVS RTC driver to use syscon interface for register access, and add SNVS power key driver support. - Add a second clock for mxc rtc driver, and support device tree probe for the driver. - Add FEC MAC reference clock and phy fixup initialization for i.MX6UL platform. * tag 'imx-soc-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: rtc: snvs: select option REGMAP_MMIO ARM: imx6ul: add fec MAC refrence clock and phy fixup init ARM: imx6ul: add fec bits to GPR syscon definition rtc: mxc: add support of device tree dt-binding: document the binding for mxc rtc rtc: mxc: use a second rtc clock input: snvs_pwrkey: use "wakeup-source" as deivce tree property name Document: devicetree: input: imx: i.mx snvs power device tree bindings input: keyboard: imx: add snvs power key driver Document: dt: fsl: snvs: change support syscon rtc: snvs: use syscon to access register ARM: imx: add low-level debug support for i.mx6ul ARM: imx: add i.mx6ul msl support Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05ARM: at91/soc: add basic support for new sama5d2 SoCNicolas Ferre
Add Kconfig entries, header file changes and addition to the documentation. The early debug infrastructure is also added for easy development. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-14ARM: imx: add low-level debug support for i.mx6ulAnson Huang
Enable low-level debug support for i.MX6UL by adding the debug port definitions for the SoC. Singed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2015-07-07Merge branches 'fixes' and 'ioremap' into for-linusRussell King
2015-06-29ARM: fix DEBUG_SET_MODULE_RONX build dependenciesRussell King
randconfig testing reveals that DEBUG_SET_MODULE_RONX needs to depend on MMU otherwise these build errors are observed: kernel/built-in.o: In function `set_section_ro_nx': kernel/module.c:1738: undefined reference to `set_memory_nx' kernel/built-in.o: In function `set_page_attributes': kernel/module.c:1709: undefined reference to `set_memory_ro' This is because the pageattr functions are not built for !MMU configs as they don't have page tables. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-26Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: "Bigger items included in this update are: - A series of updates from Arnd for ARM randconfig build failures - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to drivers/irqchip/ - Move ARMs SP804 timer to drivers/clocksource/ - Perf updates from Mark Rutland in preparation to move the ARM perf code into drivers/ so it can be shared with ARM64. - MCPM updates from Nicolas - Add support for taking platform serial number from DT - Re-implement Keystone2 physical address space switch to conform to architecture requirements - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2 changes. - L2C cleanups to avoid unlocking caches if we're prevented by the secure support to unlock. - Avoid cleaning a potentially dirty cache containing stale data on CPU initialisation - Add ARM-only entry point for secondary startup (for machines that can only call into a Thumb kernel in ARM mode). Same thing is also done for the resume entry point. - Provide arch_irqs_disabled via asm-generic - Enlarge ARMv7M vector table - Always use BFD linker for VDSO, as gold doesn't accept some of the options we need. - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all BSYM compiler macros to a "badr" (for branch address). - Shut up compiler warnings provoked by our cmpxchg() implementation. - Ensure bad xchg sizes fail to link" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits) ARM: Fix build if CLKDEV_LOOKUP is not configured ARM: fix new BSYM() usage introduced via for-arm-soc branch ARM: 8383/1: nommu: avoid deprecated source register on mov ARM: 8391/1: l2c: add options to overwrite prefetching behavior ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone ARM: 8384/1: VDSO: force use of BFD linker ARM: 8385/1: VDSO: group link options ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations ARM: remove __bad_xchg definition ARM: 8369/1: ARMv7M: define size of vector table for Vybrid ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion ARM: 8364/1: fix BE32 module loading ARM: 8360/1: add secondary_startup_arm prototype in header file ARM: 8359/1: correct secondary_startup_arm mode ARM: proc-v7: sanitise and document registers around errata ARM: proc-v7: clean up MIDR access ...
2015-06-10Merge tag 'imx-soc-4.2' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc The i.MX SoC updates for 4.2: - Add new SoC i.MX7D support, which integrates two Cortex-A7 and one Cortex-M4 cores. - Support suspend from IRAM on i.MX53, so that DDR pins can be set to high impedance for more power saving during suspend. - Move i.MX clock drivers from arch/arm/mach-imx to drivers/clk/imx. - Move i.MX GPT timer driver from arch/arm/mach-imx into drivers/clocksource. - A couple of clock driver update for VF610 and i.MX6Q. - A few random code correction and improvement. * tag 'imx-soc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (44 commits) ARM: imx: imx7d requires anatop clocksource: timer-imx-gpt: remove include of <asm/mach/time.h> ARM: imx: move timer driver into drivers/clocksource ARM: imx: remove platform headers from timer driver ARM: imx: provide gpt device specific irq functions ARM: imx: get rid of variable timer_base ARM: imx: define gpt register offset per device type ARM: imx: move clock event variables into imx_timer ARM: imx: set up .set_next_event hook via imx_gpt_data ARM: imx: setup tctl register in device specific function ARM: imx: initialize gpt device type for DT boot ARM: imx: define an enum for gpt timer device type ARM: imx: move timer resources into a structure ARM: imx: use relaxed IO accessor in timer driver ARM: imx: make imx51/3 suspend optional ARM: clk-imx6q: refine sata's parent ARM: imx: clk-v610: Add clock for I2C2 and I2C3 ARM: mach-imx: iomux-imx31: Use DECLARE_BITMAP ARM: imx: add imx7d clk tree support ARM: clk: imx: update pllv3 to support imx7 ... Conflicts: arch/arm/mach-imx/Kconfig