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* Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linuxLinus Torvalds2020-12-221-1/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: - Rework phys/virt translation - Add KASan support - Move DT out of linear map region - Use more PC-relative addressing in assembly - Remove FP emulation handling while in kernel mode - Link with '-z norelro' - remove old check for GCC <= 4.2 in ARM unwinder code - disable big endian if using clang's linker * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (46 commits) ARM: 9027/1: head.S: explicitly map DT even if it lives in the first physical section ARM: 9038/1: Link with '-z norelro' ARM: 9037/1: uncompress: Add OF_DT_MAGIC macro ARM: 9036/1: uncompress: Fix dbgadtb size parameter name ARM: 9035/1: uncompress: Add be32tocpu macro ARM: 9033/1: arm/smp: Drop the macro S(x,s) ARM: 9032/1: arm/mm: Convert PUD level pgtable helper macros into functions ARM: 9031/1: hyp-stub: remove unused .L__boot_cpu_mode_offset symbol ARM: 9044/1: vfp: use undef hook for VFP support detection ARM: 9034/1: __div64_32(): straighten up inline asm constraints ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler ARM: 9028/1: disable KASAN in call stack capturing routines ARM: 9026/1: unwind: remove old check for GCC <= 4.2 ARM: 9025/1: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD ARM: 9024/1: Drop useless cast of "u64" to "long long" ARM: 9023/1: Spelling s/mmeory/memory/ ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak ARM: kvm: replace open coded VA->PA calculations with adr_l call ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET ...
| * ARM: 9015/2: Define the virtual space of KASan's shadow regionLinus Walleij2020-10-271-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define KASAN_SHADOW_OFFSET,KASAN_SHADOW_START and KASAN_SHADOW_END for the Arm kernel address sanitizer. We are "stealing" lowmem (the 4GB addressable by a 32bit architecture) out of the virtual address space to use as shadow memory for KASan as follows: +----+ 0xffffffff | | | | |-> Static kernel image (vmlinux) BSS and page table | |/ +----+ PAGE_OFFSET | | | | |-> Loadable kernel modules virtual address space area | |/ +----+ MODULES_VADDR = KASAN_SHADOW_END | | | | |-> The shadow area of kernel virtual address. | |/ +----+-> TASK_SIZE (start of kernel space) = KASAN_SHADOW_START the | | shadow address of MODULES_VADDR | | | | | | | | |-> The user space area in lowmem. The kernel address | | | sanitizer do not use this space, nor does it map it. | | | | | | | | | | | | | |/ ------ 0 0 .. TASK_SIZE is the memory that can be used by shared userspace/kernelspace. It us used for userspace processes and for passing parameters and memory buffers in system calls etc. We do not need to shadow this area. KASAN_SHADOW_START: This value begins with the MODULE_VADDR's shadow address. It is the start of kernel virtual space. Since we have modules to load, we need to cover also that area with shadow memory so we can find memory bugs in modules. KASAN_SHADOW_END This value is the 0x100000000's shadow address: the mapping that would be after the end of the kernel memory at 0xffffffff. It is the end of kernel address sanitizer shadow area. It is also the start of the module area. KASAN_SHADOW_OFFSET: This value is used to map an address to the corresponding shadow address by the following formula: shadow_addr = (address >> 3) + KASAN_SHADOW_OFFSET; As you would expect, >> 3 is equal to dividing by 8, meaning each byte in the shadow memory covers 8 bytes of kernel memory, so one bit shadow memory per byte of kernel memory is used. The KASAN_SHADOW_OFFSET is provided in a Kconfig option depending on the VMSPLIT layout of the system: the kernel and userspace can split up lowmem in different ways according to needs, so we calculate the shadow offset depending on this. When kasan is enabled, the definition of TASK_SIZE is not an 8-bit rotated constant, so we need to modify the TASK_SIZE access code in the *.s file. The kernel and modules may use different amounts of memory, according to the VMSPLIT configuration, which in turn determines the PAGE_OFFSET. We use the following KASAN_SHADOW_OFFSETs depending on how the virtual memory is split up: - 0x1f000000 if we have 1G userspace / 3G kernelspace split: - The kernel address space is 3G (0xc0000000) - PAGE_OFFSET is then set to 0x40000000 so the kernel static image (vmlinux) uses addresses 0x40000000 .. 0xffffffff - On top of that we have the MODULES_VADDR which under the worst case (using ARM instructions) is PAGE_OFFSET - 16M (0x01000000) = 0x3f000000 so the modules use addresses 0x3f000000 .. 0x3fffffff - So the addresses 0x3f000000 .. 0xffffffff need to be covered with shadow memory. That is 0xc1000000 bytes of memory. - 1/8 of that is needed for its shadow memory, so 0x18200000 bytes of shadow memory is needed. We "steal" that from the remaining lowmem. - The KASAN_SHADOW_START becomes 0x26e00000, to KASAN_SHADOW_END at 0x3effffff. - Now we can calculate the KASAN_SHADOW_OFFSET for any kernel address as 0x3f000000 needs to map to the first byte of shadow memory and 0xffffffff needs to map to the last byte of shadow memory. Since: SHADOW_ADDR = (address >> 3) + KASAN_SHADOW_OFFSET 0x26e00000 = (0x3f000000 >> 3) + KASAN_SHADOW_OFFSET KASAN_SHADOW_OFFSET = 0x26e00000 - (0x3f000000 >> 3) KASAN_SHADOW_OFFSET = 0x26e00000 - 0x07e00000 KASAN_SHADOW_OFFSET = 0x1f000000 - 0x5f000000 if we have 2G userspace / 2G kernelspace split: - The kernel space is 2G (0x80000000) - PAGE_OFFSET is set to 0x80000000 so the kernel static image uses 0x80000000 .. 0xffffffff. - On top of that we have the MODULES_VADDR which under the worst case (using ARM instructions) is PAGE_OFFSET - 16M (0x01000000) = 0x7f000000 so the modules use addresses 0x7f000000 .. 0x7fffffff - So the addresses 0x7f000000 .. 0xffffffff need to be covered with shadow memory. That is 0x81000000 bytes of memory. - 1/8 of that is needed for its shadow memory, so 0x10200000 bytes of shadow memory is needed. We "steal" that from the remaining lowmem. - The KASAN_SHADOW_START becomes 0x6ee00000, to KASAN_SHADOW_END at 0x7effffff. - Now we can calculate the KASAN_SHADOW_OFFSET for any kernel address as 0x7f000000 needs to map to the first byte of shadow memory and 0xffffffff needs to map to the last byte of shadow memory. Since: SHADOW_ADDR = (address >> 3) + KASAN_SHADOW_OFFSET 0x6ee00000 = (0x7f000000 >> 3) + KASAN_SHADOW_OFFSET KASAN_SHADOW_OFFSET = 0x6ee00000 - (0x7f000000 >> 3) KASAN_SHADOW_OFFSET = 0x6ee00000 - 0x0fe00000 KASAN_SHADOW_OFFSET = 0x5f000000 - 0x9f000000 if we have 3G userspace / 1G kernelspace split, and this is the default split for ARM: - The kernel address space is 1GB (0x40000000) - PAGE_OFFSET is set to 0xc0000000 so the kernel static image uses 0xc0000000 .. 0xffffffff. - On top of that we have the MODULES_VADDR which under the worst case (using ARM instructions) is PAGE_OFFSET - 16M (0x01000000) = 0xbf000000 so the modules use addresses 0xbf000000 .. 0xbfffffff - So the addresses 0xbf000000 .. 0xffffffff need to be covered with shadow memory. That is 0x41000000 bytes of memory. - 1/8 of that is needed for its shadow memory, so 0x08200000 bytes of shadow memory is needed. We "steal" that from the remaining lowmem. - The KASAN_SHADOW_START becomes 0xb6e00000, to KASAN_SHADOW_END at 0xbfffffff. - Now we can calculate the KASAN_SHADOW_OFFSET for any kernel address as 0xbf000000 needs to map to the first byte of shadow memory and 0xffffffff needs to map to the last byte of shadow memory. Since: SHADOW_ADDR = (address >> 3) + KASAN_SHADOW_OFFSET 0xb6e00000 = (0xbf000000 >> 3) + KASAN_SHADOW_OFFSET KASAN_SHADOW_OFFSET = 0xb6e00000 - (0xbf000000 >> 3) KASAN_SHADOW_OFFSET = 0xb6e00000 - 0x17e00000 KASAN_SHADOW_OFFSET = 0x9f000000 - 0x8f000000 if we have 3G userspace / 1G kernelspace with full 1 GB low memory (VMSPLIT_3G_OPT): - The kernel address space is 1GB (0x40000000) - PAGE_OFFSET is set to 0xb0000000 so the kernel static image uses 0xb0000000 .. 0xffffffff. - On top of that we have the MODULES_VADDR which under the worst case (using ARM instructions) is PAGE_OFFSET - 16M (0x01000000) = 0xaf000000 so the modules use addresses 0xaf000000 .. 0xaffffff - So the addresses 0xaf000000 .. 0xffffffff need to be covered with shadow memory. That is 0x51000000 bytes of memory. - 1/8 of that is needed for its shadow memory, so 0x0a200000 bytes of shadow memory is needed. We "steal" that from the remaining lowmem. - The KASAN_SHADOW_START becomes 0xa4e00000, to KASAN_SHADOW_END at 0xaeffffff. - Now we can calculate the KASAN_SHADOW_OFFSET for any kernel address as 0xaf000000 needs to map to the first byte of shadow memory and 0xffffffff needs to map to the last byte of shadow memory. Since: SHADOW_ADDR = (address >> 3) + KASAN_SHADOW_OFFSET 0xa4e00000 = (0xaf000000 >> 3) + KASAN_SHADOW_OFFSET KASAN_SHADOW_OFFSET = 0xa4e00000 - (0xaf000000 >> 3) KASAN_SHADOW_OFFSET = 0xa4e00000 - 0x15e00000 KASAN_SHADOW_OFFSET = 0x8f000000 - The default value of 0xffffffff for KASAN_SHADOW_OFFSET is an error value. We should always match one of the above shadow offsets. When we do this, TASK_SIZE will sometimes get a bit odd values that will not fit into immediate mov assembly instructions. To account for this, we need to rewrite some assembly using TASK_SIZE like this: - mov r1, #TASK_SIZE + ldr r1, =TASK_SIZE or - cmp r4, #TASK_SIZE + ldr r0, =TASK_SIZE + cmp r4, r0 this is done to avoid the immediate #TASK_SIZE that need to fit into a limited number of bits. Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: kasan-dev@googlegroups.com Cc: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Ard Biesheuvel <ardb@kernel.org> # QEMU/KVM/mach-virt/LPAE/8G Tested-by: Florian Fainelli <f.fainelli@gmail.com> # Brahma SoCs Tested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> # i.MX6Q Reported-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Abbott Liu <liuwenliang@huawei.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: 9012/1: move device tree mapping out of linear regionArd Biesheuvel2020-10-271-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On ARM, setting up the linear region is tricky, given the constraints around placement and alignment of the memblocks, and how the kernel itself as well as the DT are placed in physical memory. Let's simplify matters a bit, by moving the device tree mapping to the top of the address space, right between the end of the vmalloc region and the start of the the fixmap region, and create a read-only mapping for it that is independent of the size of the linear region, and how it is organized. Since this region was formerly used as a guard region, which will now be populated fully on LPAE builds by this read-only mapping (which will still be able to function as a guard region for stray writes), bump the start of the [underutilized] fixmap region by 512 KB as well, to ensure that there is always a proper guard region here. Doing so still leaves ample room for the fixmap space, even with NR_CPUS set to its maximum value of 32. Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | Merge tag 'arm-soc-drivers-5.11' of ↵Linus Torvalds2020-12-164-22/+13
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC driver updates from Arnd Bergmann: "There are a couple of subsystems maintained by other people that merge their drivers through the SoC tree, those changes include: - The SCMI firmware framework gains support for sensor notifications and for controlling voltage domains. - A large update for the Tegra memory controller driver, integrating it better with the interconnect framework - The memory controller subsystem gains support for Mediatek MT8192 - The reset controller framework gains support for sharing pulsed resets For Soc specific drivers in drivers/soc, the main changes are - The Allwinner/sunxi MBUS gets a rework for the way it handles dma_map_ops and offsets between physical and dma address spaces. - An errata fix plus some cleanups for Freescale Layerscape SoCs - A cleanup for renesas drivers regarding MMIO accesses. - New SoC specific drivers for Mediatek MT8192 and MT8183 power domains - New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC identification. - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and SDX55. - A rework of the TI AM33xx 'genpd' power domain support to use information from DT instead of platform data - Support for TI AM64x SoCs - Allow building some Amlogic drivers as modules instead of built-in Finally, there are numerous cleanups and smaller bug fixes for Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips, Renesas, and Xilinx SoCs" * tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits) soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS firmware: xilinx: Properly align function parameter firmware: xilinx: Add a blank line after function declaration firmware: xilinx: Remove additional newline firmware: xilinx: Fix kernel-doc warnings firmware: xlnx-zynqmp: fix compilation warning soc: xilinx: vcu: add missing register NUM_CORE soc: xilinx: vcu: use vcu-settings syscon registers dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding soc: xilinx: vcu: drop useless success message clk: samsung: mark PM functions as __maybe_unused soc: samsung: exynos-chipid: initialize later - with arch_initcall soc: samsung: exynos-chipid: order list of SoCs by name memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe() memory: ti-emif-sram: only build for ARMv7 memory: tegra30: Support interconnect framework memory: tegra20: Support hardware versioning and clean up OPP table initialization dt-bindings: memory: tegra20-emc: Document opp-supported-hw property soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe() reset-controller: ti: force the write operation when assert or deassert ...
| * | Documentation: Update paths of Samsung S3C machine filesKrzysztof Kozlowski2020-10-314-22/+13
| |/ | | | | | | | | | | | | | | | | Documentation references Samsung S3C24xx and S3C64xx machine files in multiple places but the files were traveling around the kernel multiple times. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200911143343.498-1-krzk@kernel.org
* | docs: archis: add a per-architecture features listMauro Carvalho Chehab2020-12-032-0/+5
| | | | | | | | | | | | | | | | | | Add a feature list matrix for each architecture to their respective Kernel books. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/9c39d4dd93e05c0008205527d2c3450912f029ed.1606748711.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | documentation: arm: sunxi: add Allwinner H616 documentsWilken Gottwalt2020-11-131-0/+10
| | | | | | | | | | | | | | | | Add the current and cleaned Allwinner H616 datasheet and user manual. Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net> Link: https://lore.kernel.org/r/20201108150104.GA66507@monster.powergraphx.local Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | documentation: arm: sunxi: add Allwinner H6 documentsWilken Gottwalt2020-10-281-0/+10
|/ | | | | | | | Add the current Allwinner H6 datasheet and user manual. Signed-off-by: Wilken Gottwalt <wilken.gottwalt@linux-addicted.net> Link: https://lore.kernel.org/r/20201027062408.GA6761@monster.powergraphx.local Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'docs-5.10' of git://git.lwn.net/linuxLinus Torvalds2020-10-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull documentation updates from Jonathan Corbet: "As hoped, things calmed down for docs this cycle; fewer changes and almost no conflicts at all. This includes: - A reworked and expanded user-mode Linux document - Some simplifications and improvements for submitting-patches.rst - An emergency fix for (some) problems with Sphinx 3.x - Some welcome automarkup improvements to automatically generate cross-references to struct definitions and other documents - The usual collection of translation updates, typo fixes, etc" * tag 'docs-5.10' of git://git.lwn.net/linux: (81 commits) gpiolib: Update indentation in driver.rst for code excerpts Documentation/admin-guide: tainted-kernels: Fix typo occured Documentation: better locations for sysfs-pci, sysfs-tagging docs: programming-languages: refresh blurb on clang support Documentation: kvm: fix a typo Documentation: Chinese translation of Documentation/arm64/amu.rst doc: zh_CN: index files in arm64 subdirectory mailmap: add entry for <mstarovoitov@marvell.com> doc: seq_file: clarify role of *pos in ->next() docs: trace: ring-buffer-design.rst: use the new SPDX tag Documentation: kernel-parameters: clarify "module." parameters Fix references to nommu-mmap.rst docs: rewrite admin-guide/sysctl/abi.rst docs: fb: Remove vesafb scrollback boot option docs: fb: Remove sstfb scrollback boot option docs: fb: Remove matroxfb scrollback boot option docs: fb: Remove framebuffer scrollback boot option docs: replace the old User Mode Linux HowTo with a new one Documentation/admin-guide: blockdev/ramdisk: remove use of "rdev" Documentation/admin-guide: README & svga: remove use of "rdev" ...
| * documentation: arm: sunxi: Allwinner H2+/H3 updateWilken Gottwalt2020-09-241-1/+1
| | | | | | | | | | | | | | | | Replaced the link to the datasheet by a link to the current version. Signed-off-by: Wilken Gottwalt <wilken.gottwalt@mailbox.org> Link: https://lore.kernel.org/r/20200923065954.GA22809@monster.powergraphx.local Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | efi: efivars: limit availability to X86 buildsArd Biesheuvel2020-09-291-1/+1
|/ | | | | | | | | | | | | CONFIG_EFI_VARS controls the code that exposes EFI variables via sysfs entries, which was deprecated before support for non-Intel architectures was added to EFI. So let's limit its availability to Intel architectures for the time being, and hopefully remove it entirely in the not too distant future. While at it, let's remove the module alias so that the module is no longer loaded automatically. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
* Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2020-08-061-4/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: - add arch/arm/Kbuild from Masahiro Yamada. - simplify act_mm macro, since it contains an open-coded get_thread_info. - VFP updates for Clang from Stefan Agner. - Fix unwinder for Clang from Nathan Huckleberry. - Remove unused it8152 PCI host controller, used by the removed cm-x2xx platforms from Mike Rapoport. - Further explanation of __range_ok(). - Remove kimage_voffset that isn't used anymore from Marc Zyngier. - Drop ancient Thumb-2 workaround for old binutils from Ard Biesheuvel. - Documentation cleanup for mach-* from Pete Zaitcev. * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8996/1: Documentation/Clean up the description of mach-<class> ARM: 8995/1: drop Thumb-2 workaround for ancient binutils ARM: 8994/1: mm: drop kimage_voffset which was only used by KVM ARM: uaccess: add further explanation of __range_ok() ARM: 8993/1: remove it8152 PCI controller driver ARM: 8992/1: Fix unwind_frame for clang-built kernels ARM: 8991/1: use VFP assembler mnemonics if available ARM: 8990/1: use VFP assembler mnemonics in register load/store macros ARM: 8989/1: use .fpu assembler directives instead of assembler arguments ARM: 8982/1: mm: Simplify act_mm macro ARM: 8981/1: add arch/arm/Kbuild
| * ARM: 8996/1: Documentation/Clean up the description of mach-<class>Pete Zaitcev2020-07-281-4/+2
| | | | | | | | | | | | | | | | | | Polish the description of machine classes a little bit, remove the duplicate directory name, so the reader does not feel compelled to dig through the output of "git blame". Signed-off-by: Pete Zaitcev <zaitcev@yahoo.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | docs: dt: convert booting-without-of.txt to ReST formatMauro Carvalho Chehab2020-06-261-1/+1
|/ | | | | | | | | | | | | | - Add a SPDX header; - Adjust document title; - Adjust document and section titles; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add table markups; - Add it to devicetree/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/8dce14af13f66cb8393c21b58f0693e667a7045f.1592918949.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: dt: convert ABI.txt to ReST formatMauro Carvalho Chehab2020-05-041-1/+1
| | | | | | | | | | | | This file only requires a properly-formatted title to be recognized as a ReST file. As there will be more files under bindings/ that will be included at the documentation body, add a new index.rst file there. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>
* docs: arm: tcm: Fix a few typosJonathan Neuschäfer2020-02-191-3/+3
| | | | | Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* ARM: at91: Documentation: add sam9x60 product and datasheetNicolas Ferre2020-01-101-0/+6
| | | | | | | | | Add the new SAM9X60 ARM926-based SoC from Microchip and its associated datasheet. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20200110090103.7728-1-nicolas.ferre@microchip.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* ARM: at91: Documentation: update the sama5d3 and armv7m datasheetsNicolas Ferre2019-09-301-2/+2
| | | | | | | | | Update SAMA5D3 and SAM E70/S70/V70/V71 Family SoC Datasheets. URL are updated in Microchip documentation. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20190819151219.19727-1-nicolas.ferre@microchip.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix titleJonathan Neuschäfer2019-08-121-1/+1
| | | | | | | | | | | | It seems a UTF-8 byte order mark (the least useful kind of BOM...) snuck into the file and broke Sphinx's detection of the title line. Besides making arm/samsung-s3c24xx/index.html look a little better, this patch also confines the non-index pages in arm/samsung-s3c24xx to their own table of contents. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' commandJonathan Neuschäfer2019-08-121-1/+1
| | | | | | | "make assabet_config" doesn't work. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation/arm/sa1100: Remove some obsolete documentationJonathan Neuschäfer2019-08-1213-452/+0
| | | | | | | | | | | | | | | | | | | | | | The support for the following boards, among others, was removed in 2004 with commit "[ARM] Remove broken SA1100 machine support.": - ADS Bitsy - Brutus - Freebird - ADS GraphicsClient Plus - ADS GraphicsMaster - Höft & Wessel Webpanel - Compaq Itsy - nanoEngine - Pangolin - PLEB - Yopy Tifon support has been removed in 2.4.3.3. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: arm: Remove orphan sh-mobile directoryGeert Uytterhoeven2019-07-311-1/+0
| | | | | | | | | | This directory is empty, except for a .gitignore file, listing an executable file that can no longer be built since commit c6535e1e0361157e ("Documentation: Remove ZBOOT MMC/SDHI utility and docs"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* docs: arm: fix a breakage with pdf outputMauro Carvalho Chehab2019-07-151-0/+1
| | | | | | | | Add an extra blank line, as otherwise XeLaTex will complain with: ! LaTeX Error: Too deeply nested. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* docs: add SPDX tags to new index filesMauro Carvalho Chehab2019-07-156-0/+12
| | | | | | | | All those new files I added are under GPL v2.0 license. Add the corresponding SPDX headers to them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* docs: add arch doc directories to the indexMauro Carvalho Chehab2019-07-151-2/+0
| | | | | | | | Now that several arch documents were converted to ReST, add their indexes to Documentation/index.rst and remove the :orphan: from them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* docs: arm: convert docs to ReST and rename to *.rstMauro Carvalho Chehab2019-07-1587-1386/+1950
| | | | | | | | | | | | | | | | | | Converts ARM the text files to ReST, preparing them to be an architecture book. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
* docs: mark orphan documents as suchMauro Carvalho Chehab2019-06-086-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | Sphinx doesn't like orphan documents: Documentation/accelerators/ocxl.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/overview.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/stm32f429-overview.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/stm32f746-overview.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/stm32f769-overview.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/stm32h743-overview.rst: WARNING: document isn't included in any toctree Documentation/arm/stm32/stm32mp157-overview.rst: WARNING: document isn't included in any toctree Documentation/gpu/msm-crash-dump.rst: WARNING: document isn't included in any toctree Documentation/interconnect/interconnect.rst: WARNING: document isn't included in any toctree Documentation/laptops/lg-laptop.rst: WARNING: document isn't included in any toctree Documentation/powerpc/isa-versions.rst: WARNING: document isn't included in any toctree Documentation/virtual/kvm/amd-memory-encryption.rst: WARNING: document isn't included in any toctree Documentation/virtual/kvm/vcpu-requests.rst: WARNING: document isn't included in any toctree So, while they aren't on any toctree, add :orphan: to them, in order to silent this warning. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* treewide: trivial: fix s/poped/popped/ typoGeorge G. Davis2019-06-071-1/+1
| | | | | | | | | Fix a couple of s/poped/popped/ typos. Signed-off-by: George G. Davis <george_davis@mentor.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* ARM: 8833/1: Ensure that NEON code always compiles with ClangNathan Chancellor2019-02-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While building arm32 allyesconfig, I ran into the following errors: arch/arm/lib/xor-neon.c:17:2: error: You should compile this file with '-mfloat-abi=softfp -mfpu=neon' In file included from lib/raid6/neon1.c:27: /home/nathan/cbl/prebuilt/lib/clang/8.0.0/include/arm_neon.h:28:2: error: "NEON support not enabled" Building V=1 showed NEON_FLAGS getting passed along to Clang but __ARM_NEON__ was not getting defined. Ultimately, it boils down to Clang only defining __ARM_NEON__ when targeting armv7, rather than armv6k, which is the '-march' value for allyesconfig. >From lib/Basic/Targets/ARM.cpp in the Clang source: // This only gets set when Neon instructions are actually available, unlike // the VFP define, hence the soft float and arch check. This is subtly // different from gcc, we follow the intent which was that it should be set // when Neon instructions are actually available. if ((FPU & NeonFPU) && !SoftFloat && ArchVersion >= 7) { Builder.defineMacro("__ARM_NEON", "1"); Builder.defineMacro("__ARM_NEON__"); // current AArch32 NEON implementations do not support double-precision // floating-point even when it is present in VFP. Builder.defineMacro("__ARM_NEON_FP", "0x" + Twine::utohexstr(HW_FP & ~HW_FP_DP)); } Ard Biesheuvel recommended explicitly adding '-march=armv7-a' at the beginning of the NEON_FLAGS definitions so that __ARM_NEON__ always gets definined by Clang. This doesn't functionally change anything because that code will only run where NEON is supported, which is implicitly armv7. Link: https://github.com/ClangBuiltLinux/linux/issues/287 Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* Documentation: Use "while" instead of "whilst"Will Deacon2018-11-204-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Whilst making an unrelated change to some Documentation, Linus sayeth: | Afaik, even in Britain, "whilst" is unusual and considered more | formal, and "while" is the common word. | | [...] | | Can we just admit that we work with computers, and we don't need to | use þe eald Englisc spelling of words that most of the world never | uses? dictionary.com refers to the word as "Chiefly British", which is probably an undesirable attribute for technical documentation. Replace all occurrences under Documentation/ with "while". Cc: David Howells <dhowells@redhat.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michael Halcrow <mhalcrow@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'armsoc-dt' of ↵Linus Torvalds2018-10-291-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device tree updates from Arnd Bergmann: "There are close to 800 indivudal changesets in this branch again, which feels like a lot. There are particularly many changes for the NVIDIA Tegra platform this time, in fact more than it has seen in the two years since the v4.9 merge window. Aside from this, it's been fairly normal, with lots of changes going into Renesas R-CAR, NXP i.MX, Allwinner Sunxi, Samsung Exynos, and TI OMAP. Most of the changes are for adding new features into existing boards, for brevity I'm only mentioning completely new machines and SoCs here. For the first time I think we have (slightly) more new 64-bit hardware than 32-bit: Two boards get added for TI OMAP: Moxa UC-2101 is an industrial computer, see https://www.moxa.com/product/UC-2100.htm; GTA04A5 is a minor variation of the motherboards of the GTA04 phone, see https://shop.goldelico.com/wiki.php?page=GTA04A5 Clearfog is a nice little board for quad-core Marvell Armada 8040 network processor, see https://www.solid-run.com/marvell-armada-family/clearfog-gt-8k/ Two additional server boards come with the Aspeed baseboard management controllers: Stardragon4800 is an arm64 reference platform made by HXT (based on Qualcomm's server chips), and TiogaPass is an Open Compute mainboard with x86 CPUs. Both use the ARM11 based AST2500 chips in the BMC. NXP i.MX usually sees a lot of new boards each release. This time there we only add one minor variant: ConnectCore 6UL SBC Pro uses the same SoM design as the ConnectCore 6UL SBC Express added later. However, there is a new chip, the i.MX6ULZ, which is an even smaller variant of the i.MX6ULL, with features removed. There is also support for the reference board design, the i.MX6ULZ 14x14 EVK. A new Raspberry Pi variant gets added, this one is the CM3 compute module based on bcm2837, it was launched in early 2017 but only now added to the kernel, both as 32-bit and as 64-bit files, as we tend to do for Raspberry Pi. On the Allwinner side, everything is again about cheap development boards, usually of the "Fruit Pi" variety. The new ones this time are: - Orange Pi Zero Plus2: http://www.orangepi.org/OrangePiZeroPlus2/ - Orange Pi One Plus: http://www.orangepi.org/OrangePiOneplus/ - Pine64 LTS: https://www.pine64.org/?product=pine-a64-lts - Banana Pi M2+ H5: http://www.banana-pi.org/m2plus.html The last one of these is now a 64-bit version of the earlier Banana Pi M2+ H3, with the same board layout. Similarly, for Rockchips, get get another variant of the 32-bit Asus Tinker board, the model 'S' based on rk3288, and three now boards based on the popular RK3399 chip: - ROC-RK3399-PC: https://libre.computer/products/boards/roc-rk3399-pc/ - Rock960: https://www.96boards.org/product/rock960/ - RockPro64: https://www.pine64.org/?page_id=61454 These are all quite powerful boards with lots of RAM and I/O, and the RK3399 is the same chip used in several Chromebooks. Finally, we get support for the PX30 (aka rk3326) chip, which is based on the low-end 64-bit Cortex-A35 CPU core. So far, only the evaluation board is supported. One more Banana Pi is added with a Mediatek chip: Banana Pi R64 is based on the MT7622 WiFi router platform, and the first product I've seen with a 64-bit Mediatek chip in that market: http://www.banana-pi.org/r64.html For HiSilicon, we gain support for the Hi3670 SoC and HiKey 370 development board, which are similar to the Hi3660 and Hikey 360 respectively, but add support for an NPU. Amlogic gets initial support for the Meson-G12A chip (S905D2), another quad-core Cortex-A53 SoC, and its evaluation platform. On the 32-bit side, we gain support for an actual end-user product, the Endless Computers Endless Mini based on Meson8b (S805), see https://endlessos.com/computers/ Qualcomm adds support for their MSM8998 SoC and evaluation platform. This chip is commonly known as the Snapdragon 835, and is used in high-end phones as well as low-end laptops. For Renesas, a very bare support for the r8a774a1 (RZ/G2M) is added, but no boards for this one. However, we do add boards for the previously added r8a77965 (R-Car M3-N): the M3NULCB Kingfisher and the M3NULCB Starter Kit Pro. While we have lots of DT changes for NVIDIA to update the existing files, the only board that gets added is the Toradex Colibri T20 on Colibri Evaluation Board for the old Tegra2. Synaptics add support for their AS370 SoC, which is part of the (formerly Marvell) Berlin line of set-top-box chips used e.g. in the various Google Chromecast. Only the .dtsi gets added at this point, no actual machines" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (721 commits) ARM: dts: socfgpa: remove ethernet aliases from dtsi arm64: dts: stratix10: add ethernet aliases dt-bindings: mediatek: Add bindig for MT7623 IOMMU and SMI dt-bindings: mediatek: Add JPEG Decoder binding for MT7623 dt-bindings: iommu: mediatek: Add binding for MT7623 dt-bindings: clock: mediatek: add support for MT7623 ARM: dts: mvebu: armada-385-db-88f6820-amc: auto-detect nand ECC properites ARM: dts: da850-lego-ev3: slow down A/DC as much as possible ARM: dts: da850-evm: Enable tca6416 on baseboard arm64: dts: uniphier: Add USB2 PHY nodes arm64: dts: uniphier: Add USB3 controller nodes ARM: dts: uniphier: Add USB2 PHY nodes ARM: dts: uniphier: Add USB3 controller nodes arm64: dts: meson-axg: s400: disable emmc arm64: dts: meson-axg: s400: add missing emmc pwrseq arm64: dts: clearfog-gt-8k: add PCIe slot description ARM: dts: at91: sama5d4_xplained: even nand memory partitions ARM: dts: at91: sama5d3_xplained: even nand memory partitions ARM: dts: at91: at91sam9x5cm: even nand memory partitions ARM: dts: at91: sama5d2_ptc_ek: fix bootloader env offsets ...
| * ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAMKrzysztof Kozlowski2018-08-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suspend to RAM on Odroid XU3/XU4/HC1 family (Exynos5422) causes imprecise abort: PM: Syncing filesystems ... done. Freezing user space processes ... (elapsed 0.003 seconds) done. OOM killer disabled. Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. wake enabled for irq 139 Disabling non-boot CPUs ... IRQ51 no longer affine to CPU1 IRQ52 no longer affine to CPU2 IRQ53 no longer affine to CPU3 IRQ54 no longer affine to CPU4 IRQ55 no longer affine to CPU5 IRQ56 no longer affine to CPU6 cpu cpu4: Dropping the link to regulator.40 IRQ57 no longer affine to CPU7 Unhandled fault: external abort on non-linefetch (0x1008) at 0xf081a028 Internal error: : 1008 [#1] PREEMPT SMP ARM with last call trace in exynos_suspend_enter(). The abort is caused by writing to register in secure part of sysram. Boards booted under secure firmware (e.g. Hardkernel Odroid boards) should access non-secure sysram. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
* | Drop all 00-INDEX files from Documentation/Henrik Austad2018-09-091-50/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a respin with a wider audience (all that get_maintainer returned) and I know this spams a *lot* of people. Not sure what would be the correct way, so my apologies for ruining your inbox. The 00-INDEX files are supposed to give a summary of all files present in a directory, but these files are horribly out of date and their usefulness is brought into question. Often a simple "ls" would reveal the same information as the filenames are generally quite descriptive as a short introduction to what the file covers (it should not surprise anyone what Documentation/sched/sched-design-CFS.txt covers) A few years back it was mentioned that these files were no longer really needed, and they have since then grown further out of date, so perhaps it is time to just throw them out. A short status yields the following _outdated_ 00-INDEX files, first counter is files listed in 00-INDEX but missing in the directory, last is files present but not listed in 00-INDEX. List of outdated 00-INDEX: Documentation: (4/10) Documentation/sysctl: (0/1) Documentation/timers: (1/0) Documentation/blockdev: (3/1) Documentation/w1/slaves: (0/1) Documentation/locking: (0/1) Documentation/devicetree: (0/5) Documentation/power: (1/1) Documentation/powerpc: (0/5) Documentation/arm: (1/0) Documentation/x86: (0/9) Documentation/x86/x86_64: (1/1) Documentation/scsi: (4/4) Documentation/filesystems: (2/9) Documentation/filesystems/nfs: (0/2) Documentation/cgroup-v1: (0/2) Documentation/kbuild: (0/4) Documentation/spi: (1/0) Documentation/virtual/kvm: (1/0) Documentation/scheduler: (0/2) Documentation/fb: (0/1) Documentation/block: (0/1) Documentation/networking: (6/37) Documentation/vm: (1/3) Then there are 364 subdirectories in Documentation/ with several files that are missing 00-INDEX alltogether (and another 120 with a single file and no 00-INDEX). I don't really have an opinion to whether or not we /should/ have 00-INDEX, but the above 00-INDEX should either be removed or be kept up to date. If we should keep the files, I can try to keep them updated, but I rather not if we just want to delete them anyway. As a starting point, remove all index-files and references to 00-INDEX and see where the discussion is going. Signed-off-by: Henrik Austad <henrik@austad.us> Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Just-do-it-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Jens Axboe <axboe@kernel.dk> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: [Almost everybody else] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'armsoc-dt' of ↵Linus Torvalds2018-06-111-0/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device tree updates from Olof Johansson: "As always, a large number of DT updates. Too many to enumerate them all, but at a glance: New SoCs introduced in this release: - Amlogic: + Meson 8M2 SoC, a.k.a. S812. A quad Cortex-A9 SoC used in some set top boxes and other products. - Mediatek: + MT7623A, which is a flavor of the MT7623 family with other on-chip ethernet options. - Qualcomm: + SDM845, a.k.a Snapdragon 845, an 4+4-core Kryo 385/845 (Cortex-A75/A55 derivative) SoC that's one of the current high-end mobile SoCs. It's great to see mainline support for it. So far, you can't do much with it, since a lot of peripherals are not yet in the DTs but driver support for USB, GPU and other pieces are starting to trickle in. This might end up being a well-supported SoC upstream if the momentum keeps up. - Renesas: + R8A77990, a.k.a R-Car E3, a new automotive entertainment-targeted SoC. Currently only one Cortex-A53 CPU is enabled, we are eagerly awaiting more. So far, basic drivers such as serial, gpios, PMU and ethernet are enabled. + R8A77470, a.k.a. RZ/G1C, a new dual Cortex-A7 SoC with PowerVR GPU. Same here, basic set of drivers such as serial, gpios and ethernet enabled, and SMP support is also forthcoming. - STMicroelectronics: + STM32F469, very similar tih STM32F429 but with display support Enhancements to SoCs/platforms (DTS contents, some driver portions might not be in yet): - Allwinner sun8i (h3/a33/a83t) SMP, DVFS tweaks, misc - Amlogic Meson: I2C, UFS, TDM, GPIO external interrupts, MMC resets - Hisilicon hi3660: Thermal cooling, CPU frequency scaling, mailbox interfaces - Marvell Berlin2CD: SMP support, thermal sensors - Mediatek MT7623: Highspeed DMA, audio support - Qualcomm IPQ8074 PCIe support, MSM8996 UFS support - Renesas: Watchdog and PMU support across many platforms - Rockchip RK3399: USB3 OTG support - Samsung Exynos: Audio-over-HDMI on Odroid X/X2/U3 - STMicro STM32: Lots of peripherals added to STM32MP175C - Uniphier: Ethernet support New boards: - Allwinner A20: Olimex A20-SOM-EVB-eMMC variant - Allwinner H2+: Libre Computer ALL-H3-CC (h2+ version) - Allwinner A33: Nintendo NES/SuperNES Classic Edition - Aspeed: S2600WF, Inventec Lanyang BMC, Portwell Neptune - Berlin2CD: Valve Steam Link - Broadcom BCM5301X: Luxul XAP-1610 and XWR-3150 V1 - Broadcom: Raspberry Pi 3 B+ - Mediatek MT7623N and MT7623A: reference boards - Meson 8M2: Tronsmart MXIII Plus - NXP i.MX: Engicam i.CoreM6, DHCOM iMX6 SOM, BTicino i.MX6DL Mamoj - Qualcomm MSM8974: Sony Xperia Z1 Compact support - Qualcomm SDM845: MTP development board - Renesas: Ebisu R8A77990 board - Renesas RZ/G1C: iwg23s: iWave G235-SDB - TI am335x: Pocketbeagle support" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (448 commits) ARM: dts: aspeed: Fix hwrng register address arm64: dts: sprd: whale2: Add the rtc enable clock for watchdog arm64: dts: sprd: Add GPIO and GPIO keys device nodes arm64: dts: sprd: fix typo in 'remote-endpoint' arm64: dts: apq8096-db820c: Removed bt-en-1-8v regulator arm64: dts: fix regulator property name for wlan pcie endpoint arm64: dts: qcom: msm8996: Use UFS_GDSC for UFS ARM: dts: pxa3xx: fix MMC clocks ARM: pxa: dts: add pin definitions for extended GPIOs ARM: pxa: dts: add gpio-ranges to gpio controller ARM: dts: ipq8074: Enable few peripherals for hk01 board ARM: dts: ipq8074: Add pcie nodes ARM: dts: ipq8074: Add peripheral nodes ARM: dts: ipq4019: Add qcom-ipq4019-ap.dk07.1-c2 board file ARM: dts: ipq4019: Add qcom-ipq4019-ap.dk07.1-c1 board file ARM: dts: ipq4019: Add ipq4019-ap.dk07.1 common data ARM: dts: ipq4019: Add qcom-ipq4019-ap.dk04.1-c3 board file ARM: dts: ipq4019: Add ipq4019-ap.dk04.1-c1 board file ARM: dts: ipq4019: Add ipq4019-ap.dk04.dtsi ARM: dts: ipq4019: Change the max opp frequency ...
| * Documentation: ARM: Add new MMC requirements for DRA7/K2GKishon Vijay Abraham I2018-05-031-0/+4
| | | | | | | | | | | | | | | | | | | | From 4.18 kernel, all the MMC controller instances in DRA7 are programmed using sdhci based driver (sdhci-omap.c). Document this new requirement here. Both omap2plus_defconfig and multi_v7_defconfig has CONFIG_MMC_SDHCI_OMAP enabled. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | Documentation: arm: clean up Marvell Berlin family infoThomas Hebb2018-05-161-8/+7
|/ | | | | | | | Remove dead links, make spacing consistent, and note that the family was acquired by Synaptics in 2017. Signed-off-by: Thomas Hebb <tommyhebb@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtdLinus Torvalds2018-04-061-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD updates from Boris Brezillon: "MTD Core: - Remove support for asynchronous erase (not implemented by any of the existing drivers anyway) - Remove Cyrille from the list of SPI NOR and MTD maintainers - Fix kernel doc headers - Allow users to define the partitions parsers they want to test through a DT property (compatible of the partitions subnode) - Remove the bfin-async-flash driver (the only architecture using it has been removed) - Fix pagetest test - Add extra checks in mtd_erase() - Simplify the MTD partition creation logic and get rid of mtd_add_device_partitions() MTD Drivers: - Add endianness information to the physmap DT binding - Add Eon EN29LV400A IDs to JEDEC probe logic - Use %*ph where appropriate SPI NOR Drivers: - Make fsl-quaspi assign different names to MTD devices connected to the same QSPI controller - Remove an unneeded driver.bus assigned in the fsl-qspi driver NAND Core: - Prepare arrival of the SPI NAND subsystem by implementing a generic (interface-agnostic) layer to ease manipulation of NAND devices - Move onenand code base to the drivers/mtd/nand/ dir - Rework timing mode selection - Provide a generic way for NAND chip drivers to flag a specific GET/SET FEATURE operation as supported/unsupported - Stop embedding ONFI/JEDEC param page in nand_chip NAND Drivers: - Rework/cleanup of the mxc driver - Various cleanups in the vf610 driver - Migrate the fsmc and vf610 to ->exec_op() - Get rid of the pxa driver (replaced by marvell_nand) - Support ->setup_data_interface() in the GPMI driver - Fix probe error path in several drivers - Remove support for unused hw_syndrome mode in sunxi_nand - Various minor improvements" * tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd: (89 commits) dt-bindings: fsl-quadspi: Add the example of two SPI NOR mtd: fsl-quadspi: Distinguish the mtd device names mtd: nand: Fix some function description mismatches in core.c mtd: fsl-quadspi: Remove unneeded driver.bus assignment mtd: rawnand: marvell: Rename ->ecc_clk into ->core_clk mtd: rawnand: s3c2410: enhance the probe function error path mtd: rawnand: tango: fix probe function error path mtd: rawnand: sh_flctl: fix the probe function error path mtd: rawnand: omap2: fix the probe function error path mtd: rawnand: mxc: fix probe function error path mtd: rawnand: denali: fix probe function error path mtd: rawnand: davinci: fix probe function error path mtd: rawnand: cafe: fix probe function error path mtd: rawnand: brcmnand: fix probe function error path mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode mtd: rawnand: marvell: Fix clock resource by adding a register clock mtd: ftl: Use DIV_ROUND_UP() mtd: Fix some function description mismatches in mtdcore.c mtd: physmap_of: update struct map_info's swap as per map requirement dt-bindings: mtd-physmap: Add endianness supports ...
| * mtd: nand: move raw NAND related code to the raw/ subdirBoris Brezillon2018-02-161-1/+1
| | | | | | | | | | | | | | | | As part of the process of sharing more code between different NAND based devices, we need to move all raw NAND related code to the raw/ subdirectory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
* | Merge tag 'armsoc-drivers' of ↵Linus Torvalds2018-04-051-59/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The main addition this time around is the new ARM "SCMI" framework, which is the latest in a series of standards coming from ARM to do power management in a platform independent way. This has been through many review cycles, and it relies on a rather interesting way of using the mailbox subsystem, but in the end I agreed that Sudeep's version was the best we could do after all. Other changes include: - the ARM CCN driver is moved out of drivers/bus into drivers/perf, which makes more sense. Similarly, the performance monitoring portion of the CCI driver are moved the same way and cleaned up a little more. - a series of updates to the SCPI framework - support for the Mediatek mt7623a SoC in drivers/soc - support for additional NVIDIA Tegra hardware in drivers/soc - a new reset driver for Socionext Uniphier - lesser bug fixes in drivers/soc, drivers/tee, drivers/memory, and drivers/firmware and drivers/reset across platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits) reset: uniphier: add ethernet reset control support for PXs3 reset: stm32mp1: Enable stm32mp1 reset driver dt-bindings: reset: add STM32MP1 resets reset: uniphier: add Pro4/Pro5/PXs2 audio systems reset control reset: imx7: add 'depends on HAS_IOMEM' to fix unmet dependency reset: modify the way reset lookup works for board files reset: add support for non-DT systems clk: scmi: use devm_of_clk_add_hw_provider() API and drop scmi_clocks_remove firmware: arm_scmi: prevent accessing rate_discrete uninitialized hwmon: (scmi) return -EINVAL when sensor information is unavailable amlogic: meson-gx-socinfo: Update soc ids soc/tegra: pmc: Use the new reset APIs to manage reset controllers soc: mediatek: update power domain data of MT2712 dt-bindings: soc: update MT2712 power dt-bindings cpufreq: scmi: add thermal dependency soc: mediatek: fix the mistaken pointer accessed when subdomains are added soc: mediatek: add SCPSYS power domain driver for MediaTek MT7623A SoC soc: mediatek: avoid hardcoded value with bus_prot_mask dt-bindings: soc: add header files required for MT7623A SCPSYS dt-binding dt-bindings: soc: add SCPSYS binding for MT7623 and MT7623A SoC ...
| * | drivers/bus: Move Arm CCN PMU driverRobin Murphy2018-03-061-59/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | The arm-ccn driver is purely a perf driver for the CCN PMU, not a bus driver in the sense of the other residents of drivers/bus/, so let's move it to the appropriate place for SoC PMU drivers. Not to mention moving the documentation accordingly as well. Acked-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | Merge tag 'at91-ab-4.17-soc' of ↵Arnd Bergmann2018-03-121-27/+25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/soc Pull "AT91 SoC for 4.17: from Alexandre Belloni: - Rename Atmel to Microhip in MAINTAINERS, Documentation and Kconfig * tag 'at91-ab-4.17-soc' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: ARM: at91: Kconfig: Update company to Microchip Documentation: at91: Update Microchip SoC documentation MAINTAINERS: ARM: at91: update entry for ARM/Microchip
| * | Documentation: at91: Update Microchip SoC documentationNicolas Ferre2018-02-281-27/+25
| |/ | | | | | | | | | | | | | | | | | | We move the former Atmel wording to the the new Microchip name for this SoC family. With the name of the directory we also change the content in relation with the update of the MAINTAINERS file. The Datasheet links now point to real documents instead of 404s. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
* | ARM: stm32: add initial support for STM32MP157Ludovic Barre2018-03-051-0/+19
| | | | | | | | | | | | | | | | | | This patch adds initial support of STM32MP157 microprocessor (MPU) based on Arm Cortex-A7. New Cortex-A infrastructure (gic, timer,...) are selected if ARCH_MULTI_V7 is defined. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
* | ARM: stm32: prepare stm32 family to welcome armv7 architectureLudovic Barre2018-03-051-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | This patch prepares the STM32 machine for the integration of Cortex-A based microprocessor (MPU), on top of the existing Cortex-M microcontroller family (MCU). Since both MCUs and MPUs are sharing common hardware blocks we can keep using ARCH_STM32 flag for most of them. If a hardware block is specific to one family we can use either ARM_SINGLE_ARMV7M or ARCH_MULTI_V7 flag. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
* | Documentation: arm: stm32: move to rst formatLudovic Barre2018-03-0510-155/+159
| | | | | | | | | | | | | | | | This patch rewrites stm32 documentation to rst (ReStructuredText) format. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
* | ARM: stm32: add new STM32F769 MCUAlexandre Torgue2018-03-051-0/+36
|/ | | | | | | Add new st,stm32f769 compatible machine name for STM32F769 MCU and update documentation. Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
* ARM: sunxi: add support for R40 SoCIcenowy Zheng2017-09-221-0/+6
| | | | | | | | | | Allwinner R40 is a new SoC, with Quad Core Cortex-A7 and peripherals like A20. Add support for it. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* ARM: sunxi: fix the core number of V3s in sunxi READMEIcenowy Zheng2017-09-221-4/+5
| | | | | | | | | | The Allwinner V3s SoC is not quad-core, but single-core. Fix this in the README file. Fixes: b074fede01c0 ("arm: sunxi: add support for V3s SoC") Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* Documentation: arm: Replace use of virt_to_phys with __pa_symbolGeert Uytterhoeven2017-07-171-1/+1
| | | | | | | | | | | | All low-level PM/SMP code using virt_to_phys() should actually use __pa_symbol() against kernel symbols. Update the documentation to move away from virt_to_phys(). Cfr. commit 6996cbb2372189f7 ("ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* ARM: at91: Documentation: add armv7m familiesAlexandre Belloni2017-06-021-1/+37
| | | | | | | | The Atmel sams70, samv70 and samv71 are Cortex-M7 based MCUs that can run Linux (without MMU). Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 14:20:46 +0000