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2022-01-09riscv: dts: microchip: mpfs: Fix clock controller nodeGeert Uytterhoeven
Fix the device node for the clock controller: - Remove bogus "reg-names" property, - Remove unneeded "clock-output-names" property. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-09riscv: dts: microchip: mpfs: Fix reference clock nodeGeert Uytterhoeven
"make dtbs_check" reports: arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: soc: refclk: {'compatible': ['fixed-clock'], '#clock-cells': [[0]], 'clock-frequency': [[600000000]], 'clock-output-names': ['msspllclk'], 'phandle': [[7]]} should not be valid under {'type': 'object'} From schema: dtschema/schemas/simple-bus.yaml Fix this by moving the node out of the "soc" subnode. While at it, rename it to "msspllclk", and drop the now superfluous "clock-output-names" property. Move the actual clock-frequency value to the board DTS, since it is not set until bitstream programming time. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-09riscv: dts: microchip: mpfs: Fix PLIC nodeGeert Uytterhoeven
Fix the device node for the Platform-Level Interrupt Controller (PLIC): - Add missing "#address-cells" property, - Sort properties according to DT bindings. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-09riscv: dts: microchip: mpfs: Drop empty chosen nodeGeert Uytterhoeven
It does not make sense to have an (empty) chosen node in an SoC-specific .dtsi, as chosen is meant for system-specific configuration. It is already provided in microchip-mpfs-icicle-kit.dts anyway. Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-09riscv: dts: canaan: Group tuples in interrupt propertiesGeert Uytterhoeven
To improve human readability and enable automatic validation, the tuples in the various properties containing interrupt specifiers should be grouped. Fix this by grouping the tuples of "interrupts" and "interrupts-extended" properties using angle brackets. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-09riscv: dts: canaan: Fix SPI FLASH node namesGeert Uytterhoeven
"make dtbs_check": arch/riscv/boot/dts/canaan/sipeed_maix_bit.dt.yaml: spi-flash@0: $nodename:0: 'spi-flash@0' does not match '^flash(@.*)?$' From schema: Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml Fix this by renaming all SPI FLASH nodes to "flash". Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-01-08kbuild: do not quote string values in include/config/auto.confMasahiro Yamada
The previous commit fixed up all shell scripts to not include include/config/auto.conf. Now that include/config/auto.conf is only included by Makefiles, we can change it into a more Make-friendly form. Previously, Kconfig output string values enclosed with double-quotes (both in the .config and include/config/auto.conf): CONFIG_X="foo bar" Unlike shell, Make handles double-quotes (and single-quotes as well) verbatim. We must rip them off when used. There are some patterns: [1] $(patsubst "%",%,$(CONFIG_X)) [2] $(CONFIG_X:"%"=%) [3] $(subst ",,$(CONFIG_X)) [4] $(shell echo $(CONFIG_X)) These are not only ugly, but also fragile. [1] and [2] do not work if the value contains spaces, like CONFIG_X=" foo bar " [3] does not work correctly if the value contains double-quotes like CONFIG_X="foo\"bar" [4] seems to work better, but has a cost of forking a process. Anyway, quoted strings were always PITA for our Makefiles. This commit changes Kconfig to stop quoting in include/config/auto.conf. These are the string type symbols referenced in Makefiles or scripts: ACPI_CUSTOM_DSDT_FILE ARC_BUILTIN_DTB_NAME ARC_TUNE_MCPU BUILTIN_DTB_SOURCE CC_IMPLICIT_FALLTHROUGH CC_VERSION_TEXT CFG80211_EXTRA_REGDB_KEYDIR EXTRA_FIRMWARE EXTRA_FIRMWARE_DIR EXTRA_TARGETS H8300_BUILTIN_DTB INITRAMFS_SOURCE LOCALVERSION MODULE_SIG_HASH MODULE_SIG_KEY NDS32_BUILTIN_DTB NIOS2_DTB_SOURCE OPENRISC_BUILTIN_DTB SOC_CANAAN_K210_DTB_SOURCE SYSTEM_BLACKLIST_HASH_LIST SYSTEM_REVOCATION_KEYS SYSTEM_TRUSTED_KEYS TARGET_CPU UNUSED_KSYMS_WHITELIST XILINX_MICROBLAZE0_FAMILY XILINX_MICROBLAZE0_HW_VER XTENSA_VARIANT_NAME I checked them one by one, and fixed up the code where necessary. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-12-16riscv: dts: sifive unmatched: Link the tmp451 with its power supplyVincent Pelletier
Fixes the following probe warning: lm90 0-004c: Looking up vcc-supply from device tree lm90 0-004c: Looking up vcc-supply property in node /soc/i2c@10030000/temperature-sensor@4c failed lm90 0-004c: supply vcc not found, using dummy regulator Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-12-16riscv: dts: sifive unmatched: Fix regulator for board rev3Vincent Pelletier
The existing values are rejected by the da9063 regulator driver, as they are unachievable with the declared chip setup (non-merged vcore and bmem are unable to provide the declared curent). Fix voltages to match rev3 schematics, which also matches their boot-up configuration within the chip's available precision. Declare bcore1/bcore2 and bmem/bio as merged. Set ldo09 and ldo10 as always-on as their consumers are not declared but exist. Drop ldo current limits as there is no current limit feature for these regulators in the DA9063. Fixes warnings like: DA9063_LDO3: Operation of current configuration missing Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-12-16riscv: dts: sifive unmatched: Expose the PMIC sub-functionsVincent Pelletier
These sub-functions are available in the chip revision on this board, so expose them. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-12-16riscv: dts: sifive unmatched: Expose the board ID eepromVincent Pelletier
Mark it as read-only as it is factory-programmed with identifying information, and no executable nor configuration: - eth MAC address - board model (PCB version, BoM version) - board serial number Accidental modification would cause misidentification which could brick the board, so marking read-only seem like both a safe and non-constraining choice. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-12-16riscv: dts: sifive unmatched: Name gpio linesVincent Pelletier
Follow the pin descriptions given in the version 3 of the board schematics. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-12-16RISC-V: Add BeagleV Starlight Beta device treeEmil Renner Berthing
Add initial device tree for the BeagleV Starlight Beta board. About 300 of these boards were sent out as part of a now cancelled BeagleBoard.org project. I2C timing data is based on the device tree in the vendor u-boot port. Heartbeat LED added by Geert. Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Co-developed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
2021-12-16RISC-V: Add initial StarFive JH7100 device treeEmil Renner Berthing
Add initial device tree for the JH7100 RISC-V SoC by StarFive Ltd. This is a test chip for their upcoming JH7110 SoC. The CPU and cache data is based on the device tree in the vendor u-boot port. Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
2021-11-24riscv: dts: unmatched: Add gpio card detect to mmc-spi-slotBin Meng
Per HiFive Unmatched schematics, the card detect signal of the micro SD card is connected to gpio pin #15, which should be reflected in the DT via the <gpios> property, as described in Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt. [1] https://sifive.cdn.prismic.io/sifive/6a06d6c0-6e66-49b5-8e9e-e68ce76f4192_hifive-unmatched-schematics-v3.pdf Signed-off-by: Bin Meng <bin.meng@windriver.com> Fixes: d573b5558abb ("riscv: dts: add initial board data for the SiFive HiFive Unmatched") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-11-24riscv: dts: unleashed: Add gpio card detect to mmc-spi-slotBin Meng
Per HiFive Unleashed schematics, the card detect signal of the micro SD card is connected to gpio pin #11, which should be reflected in the DT via the <gpios> property, as described in Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt. [1] https://sifive.cdn.prismic.io/sifive/c52a8e32-05ce-4aaf-95c8-7bf8453f8698_hifive-unleashed-a00-schematics-1.pdf Signed-off-by: Bin Meng <bin.meng@windriver.com> Fixes: d573b5558abb ("riscv: dts: add initial board data for the SiFive HiFive Unmatched") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-11-18riscv: dts: enable more DA9063 functions for the SiFive HiFive UnmatchedAurelien Jarno
The DA9063 PMIC found on the SiFive HiFive Unmatched also provides an RTC, a watchdog and the power button input. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2021-10-21Merge tag 'riscv-sifive-dt-5.16' of ↵Palmer Dabbelt
git://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux into for-next RISC-V DTS changes for v5.16 Cleanups of RISC-V SiFive and Microchip DTSes with dtschema. These are few minor fixes to make DTSes pass the dtschema, without actual functional effect. * tag 'riscv-sifive-dt-5.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux: riscv: dts: sifive: add missing compatible for plic riscv: dts: microchip: add missing compatibles for clint and plic riscv: dts: sifive: drop duplicated nodes and properties in sifive riscv: dts: sifive: fix Unleashed board compatible riscv: dts: sifive: use only generic JEDEC SPI NOR flash compatible
2021-10-19riscv: dts: sifive: add missing compatible for plicKrzysztof Kozlowski
Add proper compatible for Platform-Level Interrupt Controller to silence dtbs_check warnings: interrupt-controller@c000000: compatible: ['sifive,plic-1.0.0'] is too short Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Link: https://lore.kernel.org/r/20210920130412.145231-2-krzysztof.kozlowski@canonical.com
2021-10-19riscv: dts: microchip: add missing compatibles for clint and plicKrzysztof Kozlowski
The Microchip Icicle kit uses SiFive E51 and U54 cores, so it looks that also Core Local Interruptor and Platform-Level Interrupt Controller are coming from SiFive. Add proper compatibles to silence dtbs_check warnings: clint@2000000: compatible:0: 'sifive,clint0' is not one of ['sifive,fu540-c000-clint', 'canaan,k210-clint'] interrupt-controller@c000000: compatible:0: 'sifive,plic-1.0.0' is not one of ['sifive,fu540-c000-plic', 'canaan,k210-plic'] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20210920130412.145231-1-krzysztof.kozlowski@canonical.com
2021-10-19riscv: dts: sifive: drop duplicated nodes and properties in sifiveKrzysztof Kozlowski
The DTSI file defines soc node and address/size cells, so there is no point in duplicating it in DTS file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Link: https://lore.kernel.org/r/20210920130248.145058-3-krzysztof.kozlowski@canonical.com
2021-10-19riscv: dts: sifive: fix Unleashed board compatibleKrzysztof Kozlowski
Add missing sifive,fu540 compatible to fix dtbs_check warnings: arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dt.yaml: /: compatible: 'oneOf' conditional failed, one must be fixed: ['sifive,hifive-unleashed-a00', 'sifive,fu540-c000'] is too short 'sifive,hifive-unleashed-a00' is not one of ['sifive,hifive-unmatched-a00'] 'sifive,fu740-c000' was expected Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Link: https://lore.kernel.org/r/20210920130248.145058-2-krzysztof.kozlowski@canonical.com
2021-10-19riscv: dts: sifive: use only generic JEDEC SPI NOR flash compatibleKrzysztof Kozlowski
The compatible "issi,is25wp256" is undocumented and instead only a generic jedec,spi-nor should be used (if appropriate). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210920130248.145058-1-krzysztof.kozlowski@canonical.com
2021-10-07riscv: dts: microchip: use vendor compatible for Cadence SD4HCKrzysztof Kozlowski
Licensed IP blocks should have their own vendor compatible. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-10-07riscv: dts: microchip: drop unused pinctrl-namesKrzysztof Kozlowski
pinctrl-names without pinctrl-0 does not have any sense: arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: sdhc@20008000: 'pinctrl-0' is a dependency of 'pinctrl-names' Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-10-07riscv: dts: microchip: drop duplicated MMC/SDHC nodeKrzysztof Kozlowski
Devicetree source is a description of hardware and hardware has only one block @20008000 which can be configured either as eMMC or SDHC. Having two node for different modes is an obscure, unusual and confusing way to configure it. Instead the board file is supposed to customize the block to its needs, e.g. to SDHC mode. This fixes dtbs_check warning: arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: sdhc@20008000: $nodename:0: 'sdhc@20008000' does not match '^mmc(@.*)?$' Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-10-07riscv: dts: microchip: fix board compatibleKrzysztof Kozlowski
According to bindings, the compatible must include microchip,mpfs. This fixes dtbs_check warning: arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: /: compatible: ['microchip,mpfs-icicle-kit'] is too short Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-10-07riscv: dts: microchip: drop duplicated nodesKrzysztof Kozlowski
The DTSI file defines soc node and address/size cells, so there is no point in duplicating it in DTS file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: dts: microchip: mpfs-icicle: Fix serial consoleGeert Uytterhoeven
Currently, nothing is output on the serial console, unless "console=ttyS0,115200n8" or "earlycon" are appended to the kernel command line. Enable automatic console selection using chosen/stdout-path by adding a proper alias, and configure the expected serial rate. While at it, add aliases for the other three serial ports, which are provided on the same micro-USB connector as the first one. Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-08-24riscv: dts: microchip: Add ethernet0 to the aliases nodeBin Meng
U-Boot expects this alias to be in place in order to fix up the mac address of the ethernet node. Note on the Icicle Kit board, currently only emac1 is enabled so it becomes the 'ethernet0'. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-08-24riscv: dts: microchip: Use 'local-mac-address' for emac1Bin Meng
Per the DT spec, 'local-mac-address' is used to specify MAC address that was assigned to the network device, while 'mac-address' is used to specify the MAC address that was last used by the boot program, and shall be used only if the value differs from 'local-mac-address' property value. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: conor dooley <conor.dooley@microchip.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-08-03riscv: dts: fix memory size for the SiFive HiFive UnmatchedQiu Wenbo
The production version of HiFive Unmatched have 16GB memory. Signed-off-by: Qiu Wenbo <qiuwenbo@kylinos.com.cn> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-06-19riscv: dts: fu740: fix cache-controller interruptsDavid Abdurachmanov
The order of interrupt numbers is incorrect. The order for FU740 is: DirError, DataError, DataFail, DirFail From SiFive FU740-C000 Manual: 19 - L2 Cache DirError 20 - L2 Cache DirFail 21 - L2 Cache DataError 22 - L2 Cache DataFail Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-06-11riscv: Fix BUILTIN_DTB for sifive and microchip socAlexandre Ghiti
Fix BUILTIN_DTB config which resulted in a dtb that was actually not built into the Linux image: in the same manner as Canaan soc does, create an object file from the dtb file that will get linked into the Linux image. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-05-06Merge tag 'riscv-for-linus-5.13-mw0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for the memtest= kernel command-line argument. - Support for building the kernel with FORTIFY_SOURCE. - Support for generic clockevent broadcasts. - Support for the buildtar build target. - Some build system cleanups to pass more LLVM-friendly arguments. - Support for kprobes. - A rearranged kernel memory map, the first part of supporting sv48 systems. - Improvements to kexec, along with support for kdump and crash kernels. - An alternatives-based errata framework, along with support for handling a pair of errata that manifest on some SiFive designs (including the HiFive Unmatched). - Support for XIP. - A device tree for the Microchip PolarFire ICICLE SoC and associated dev board. ... along with a bunch of cleanups. There are already a handful of fixes on the list so there will likely be a part 2. * tag 'riscv-for-linus-5.13-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (45 commits) RISC-V: Always define XIP_FIXUP riscv: Remove 32b kernel mapping from page table dump riscv: Fix 32b kernel build with CONFIG_DEBUG_VIRTUAL=y RISC-V: Fix error code returned by riscv_hartid_to_cpuid() RISC-V: Enable Microchip PolarFire ICICLE SoC RISC-V: Initial DTS for Microchip ICICLE board dt-bindings: riscv: microchip: Add YAML documentation for the PolarFire SoC RISC-V: Add Microchip PolarFire SoC kconfig option RISC-V: enable XIP RISC-V: Add crash kernel support RISC-V: Add kdump support RISC-V: Improve init_resources() RISC-V: Add kexec support RISC-V: Add EM_RISCV to kexec UAPI header riscv: vdso: fix and clean-up Makefile riscv/mm: Use BUG_ON instead of if condition followed by BUG. riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe riscv: Set ARCH_HAS_STRICT_MODULE_RWX if MMU riscv: module: Create module allocations without exec permissions riscv: bpf: Avoid breaking W^X ...
2021-05-04riscv: dts: Add PCIe support for the SiFive FU740-C000 SoCGreentime Hu
Link: https://lore.kernel.org/r/20210504105940.100004-7-greentime.hu@sifive.com Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-04-26RISC-V: Initial DTS for Microchip ICICLE boardAtish Patra
Add initial DTS for Microchip ICICLE board having only essential devices (clocks, sdhci, ethernet, serial, etc). The device tree is based on the U-Boot patch. https://patchwork.ozlabs.org/project/uboot/patch/20201110103414.10142-6-padmarao.begari@microchip.com/ Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-26Merge tag 'riscv-for-linus-5.12-mw0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "A handful of new RISC-V related patches for this merge window: - A check to ensure drivers are properly using uaccess. This isn't manifesting with any of the drivers I'm currently using, but may catch errors in new drivers. - Some preliminary support for the FU740, along with the HiFive Unleashed it will appear on. - NUMA support for RISC-V, which involves making the arm64 code generic. - Support for kasan on the vmalloc region. - A handful of new drivers for the Kendryte K210, along with the DT plumbing required to boot on a handful of K210-based boards. - Support for allocating ASIDs. - Preliminary support for kernels larger than 128MiB. - Various other improvements to our KASAN support, including the utilization of huge pages when allocating the KASAN regions. We may have already found a bug with the KASAN_VMALLOC code, but it's passing my tests. There's a fix in the works, but that will probably miss the merge window. * tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (75 commits) riscv: Improve kasan population by using hugepages when possible riscv: Improve kasan population function riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization riscv: Improve kasan definitions riscv: Get rid of MAX_EARLY_MAPPING_SIZE soc: canaan: Sort the Makefile alphabetically riscv: Disable KSAN_SANITIZE for vDSO riscv: Remove unnecessary declaration riscv: Add Canaan Kendryte K210 SD card defconfig riscv: Update Canaan Kendryte K210 defconfig riscv: Add Kendryte KD233 board device tree riscv: Add SiPeed MAIXDUINO board device tree riscv: Add SiPeed MAIX GO board device tree riscv: Add SiPeed MAIX DOCK board device tree riscv: Add SiPeed MAIX BiT board device tree riscv: Update Canaan Kendryte K210 device tree dt-bindings: add resets property to dw-apb-timer dt-bindings: fix sifive gpio properties dt-bindings: update sifive uart compatible string dt-bindings: update sifive clint compatible string ...
2021-02-22riscv: Add Kendryte KD233 board device treeDamien Le Moal
Add the device tree canaan_kd233.dts for the Canaan Kendryte KD233 development board. This device tree enables LEDs, some gpios and spi/mmc SD card device. The WS2812B RGB LED and the 10 positions rotary dip switch present on the board are left undefined. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> [Palmer: Remove undocumented microphone entry, along with the use.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-22riscv: Add SiPeed MAIXDUINO board device treeDamien Le Moal
Add the device tree sipeed_maixduino.dts for the SiPeed MAIXDUINO board. This device tree enables LEDs and spi/mmc SD card device. Additionally, gpios and i2c are also enabled and mapped to the board header pins as indicated on the board itself. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> [Palmer: Remove undocumented microphone entry, along with the use.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-22riscv: Add SiPeed MAIX GO board device treeDamien Le Moal
Add the device tree sipeed_maix_go.dts for the SiPeed MAIX GO board. This device tree enables buttons, LEDs, gpio, i2c and spi/mmc SD card devices. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> [Palmer: Remove undocumented microphone entry, along with the use.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-22riscv: Add SiPeed MAIX DOCK board device treeDamien Le Moal
Add the device tree sipeed_maix_dock.dts for the SiPeed MAIX DOCK m1 and m1w boards. This device tree enables LEDs, gpio, i2c and spi/mmc SD card devices. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> [Palmer: Remove undocumented microphone entry, along with the use.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-22riscv: Add SiPeed MAIX BiT board device treeDamien Le Moal
Add the device tree sipeed_maix_bit.dts for the SiPeed MAIX BiT and MAIX BiTm boards. This device tree enables LEDs, gpio, i2c and spi/mmc SD card devices. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> [Palmer: Remove undocumented microphone entry, along with the use.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-22riscv: Update Canaan Kendryte K210 device treeDamien Le Moal
Update the Canaan Kendryte K210 base device tree k210.dtsi to define all supported peripherals of the SoC, their clocks and reset lines. The device tree file k210.dts is renamed to k210_generic.dts and becomes the default value selection of the configuration option SOC_CANAAN_K210_DTB_BUILTIN_SOURCE. No device beside the serial console is defined by this device tree. This makes this generic device tree suitable for use with a builtin initramfs with all known K210 based boards. These changes result in the K210_CLK_ACLK clock ID to be unused and removed from the dt-bindings k210-clk.h header file. Most updates to the k210.dtsi file come from Sean Anderson's work on U-Boot support for the K210. Cc: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-02-10Revert "dts: phy: add GPIO number and active state used for phy reset"Palmer Dabbelt
VSC8541 phys need a special reset sequence, which the driver doesn't currentlny support. As a result enabling the reset via GPIO essentially guarnteees that the device won't work correctly. We've been relying on bootloaders to reset the device for years, with this revert we'll go back to doing so until we can sort out how to get the reset sequence into the kernel. This reverts commit a0fa9d727043da2238432471e85de0bdb8a8df65. Fixes: a0fa9d727043 ("dts: phy: add GPIO number and active state used for phy reset") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-14riscv: Fix Canaan Kendryte K210 device treeDamien Le Moal
Remove the clocks property from the cpu and clint nodes as these are ignored. Also remove the clock-frequency property from the cpu nodes as riscv relies on the timebase-frequency property. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-14riscv: Use vendor name for K210 SoC supportDamien Le Moal
Rename configuration options and directories related to the Kendryte K210 SoC to use the SoC vendor name (canaan) instead of the "kendryte" branding name. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-13dts: phy: add GPIO number and active state used for phy resetSagar Shrikant Kadam
The GEMGXL_RST line on HiFive Unleashed is pulled low and is using GPIO number 12. Add these reset-gpio details to dt-node using which the linux phylib can reset the phy. Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-13dts: phy: fix missing mdio device and probe failure of vsc8541-01 deviceSagar Shrikant Kadam
HiFive unleashed A00 board has VSC8541-01 ethernet phy, this device is identified as a Revision B device as described in device identification registers. In order to use this phy in the unmanaged mode, it requires a specific reset sequence of logical 0-1-0-1 transition on the NRESET pin as documented here [1]. Currently, the bootloader (fsbl or u-boot-spl) takes care of the phy reset. If due to some reason the phy device hasn't received the reset by the prior stages before the linux macb driver comes into the picture, the MACB mii bus gets probed but the mdio scan fails and is not even able to read the phy ID registers. It gives an error message: "libphy: MACB_mii_bus: probed mdio_bus 10090000.ethernet-ffffffff: MDIO device at address 0 is missing." Thus adding the device OUI (Organizationally Unique Identifier) to the phy device node helps to probe the phy device. [1]: VSC8541-01 datasheet: https://www.mouser.com/ds/2/523/Microsemi_VSC8541-01_Datasheet_10496_V40-1148034.pdf Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-07riscv: Fix builtin DTB handlingDamien Le Moal
All SiPeed K210 MAIX boards have the exact same vendor, arch and implementation IDs, preventing differentiation to select the correct device tree to use through the SOC_BUILTIN_DTB_DECLARE() macro. This result in this macro to be useless and mandates changing the code of the sysctl driver to change the builtin device tree suitable for the target board. Fix this problem by removing the SOC_BUILTIN_DTB_DECLARE() macro since it is used only for the K210 support. The code searching the builtin DTBs using the vendor, arch an implementation IDs is also removed. Support for builtin DTB falls back to the simpler and more traditional handling of builtin DTB using the CONFIG_BUILTIN_DTB option, similarly to other architectures. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
generated by cgit (git 2.34.1) at 2025-07-19 23:03:06 +0000