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2020-07-11ARM: uniphier: remove support for NOR Flash on support cardMasahiro Yamada
I actually do not see this used these days because eMMC or NAND is used for non-volatile devices. Dump the burden to maintain this crappy code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-07-11ARM: uniphier: increase CONFIG_SYS_MONITOR_LEN to 2MBMasahiro Yamada
I increased the maximum U-Boot proper size from time to time, but configs/uniphier_v7_defconfig hit the current limit 832KB. Some historical info: In the initial support, the max size was 512MB. Commit 58d702274c09 ("ARM: uniphier: increase CONFIG_SYS_MONITOR_LEN") increased it to 576KB, and commit 3ce5b1a8d86d ("ARM: uniphier: move SPL stack address") moved the SPL stack location to avoid the memory map conflict. It was the solution to increase the size without changing the NOR boot image map. commit 1a4bd3a095b2 ("ARM: uniphier: increase CONFIG_SYS_MONITOR_LEN again") ended up with increasing the max size again, breaking the NOR boot image map. The limit was set to 832KB, otherwise the SPL stack would overwrite the U-Boot proper image: CONFIG_SPL_STACK - CONFIG_SYS_UBOOT_BASE + sizeof(struct image_header) = 0xd0000 To increase CONFIG_SYS_MONITOR_LEN even more, the SPL stack must be moved somewhere. I put it back to the original location prior to commit 3ce5b1a8d86d. With this change, there is no more practical size limit. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-07-10Merge tag 'rpi-next-2020.10' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-raspberrypi - add support for PCI and XHCI for RPi4 (64 bit only) - optionally reset XHCI device on registration - enable USB_KEYBOARD for rpi_4_defconfig
2020-07-10powerpc: move ADDR_MAP to KconfigMarek Szyprowski
Move ADDR_MAP related config options from include/configs/*.h to the proper place in lib/Kconfig. This has been done using ./tools/moveconfig.py and manual inspection of the generated changes. This is a preparation to use ADDR_MAP helper on ARM 32bit Raspberry Pi4 board for mapping the PCIe XHCI MMIO, which is above the 4GiB identity mapping limit. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2020-07-10usb: xhci: Add reset controller supportNicolas Saenz Julienne
Some atypical users of xhci might need to manually reset their xHCI controller before starting the HCD setup. Check if a reset controller device is available to the PCI bus and trigger a reset. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> [mb: squash fix to only build xhci_reset_hw() if CONFIG_DM_BUS] Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-10reset: Add Raspberry Pi 4 firmware reset controllerNicolas Saenz Julienne
Raspberry Pi 4's co-processor controls some of the board's HW initialization process, but it's up to Linux to trigger it when relevant. Introduce a reset controller capable of interfacing with RPi4's co-processor that models these firmware initialization routines as reset lines. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-10pci: Add some PCI Express capability register offset definitionsSylwester Nawrocki
Add PCI Express capability definitions required by the Broadcom STB PCIe controller driver. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-10linux/bitfield.h: Add primitives for manipulating bitfields both in host- ↵Nicolas Saenz Julienne
and fixed-endian Imports Al Viro's original Linux commit 00b0c9b82663a, which contains an in depth explanation and two fixes from Johannes Berg: e7d4a95da86e0 "bitfield: fix *_encode_bits()", 37a3862e12382 "bitfield: add u8 helpers". Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> [s.nawrocki: added empty lines between functions and macros] Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> [mb: squash fix including byteorder.h] Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-09Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86Tom Rini
- Add two- and three-argument versions of CONFIG_IS_ENABLED in linux/kconfig.h - Adds a new feature which supports copying modified parts of the frame buffer to the uncached hardware buffer - Enable the copy framebuffer on various x86 targets
2020-07-09pci: Move some PCIe register offset definitions to a common headerSylwester Nawrocki
Some PCI Express register offsets are currently defined in multiple drivers, move them to a common header to avoid re-definitions and as a pre-requisite for adding new PCIe driver. While at it replace some spaces with tabs. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-09usb: xhci: Use only 32-bit accesses in xhci_writeq/xhci_readqSylwester Nawrocki
There might be hardware configurations where 64-bit data accesses to XHCI registers are not supported properly. This patch removes the readq/writeq so always two 32-bit accesses are used to read/write 64-bit XHCI registers, similarly as it is done in Linux kernel. This patch fixes operation of the XHCI controller on RPI4 Broadcom BCM2711 SoC based board, where the VL805 USB XHCI controller is connected to the PCIe Root Complex, which is attached to the system through the SCB bridge. Even though the architecture is 64-bit the PCIe BAR is 32-bit and likely the 64-bit wide register accesses initiated by the CPU are not properly translated to a sequence of 32-bit PCIe accesses. xhci_readq(), for example, always returns same value in upper and lower 32-bits, e.g. 0xabcd1234abcd1234 instead of 0x00000000abcd1234. Cc: Sergey Temerkhanov <s.temerkhanov@gmail.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-07-09Merge tag 'for-v2020.10' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2cTom Rini
i2c changes for v2020.10 - Add support for I2C controllers found on Octeon II/III and Octeon TX TX2 SoC platforms. - Add I2C controller support for Cortina Access CAxxxx SoCs - new rtc methods, rtc command, and tests - imx_lpi2c: Improve the codes to use private data - stm32f7_i2c.c: Add new compatible "st,stm32mp15-i2c" - stm32f7_i2c.c: Add Fast Mode Plus support - pwm: Add PWM driver for SiFive SoC
2020-07-09arm: kirkwood: switch LaCie boards to sata_mv driverSimon Guinot
This patch switches the SATA driver from mvsata_ide to sata_mv for the following Kirkwood-based LaCie boards: - d2 Network v2 - Internet Space v2 - 2Big Network v2 - Network Space v2 - Network Space Lite v2 - Network Space Max v2 - Network Space Mini v2 Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Reviewed-by: Stefan Roese <sr@denx.de>
2020-07-09arm: mvebu: helios4: sync helios4 config to clearfog and dts to kernelDennis Gilmore
The helios4 is built on the same microsom as the clearfog, by syncing the config we enable the same featureset that exists in the som on the helios4. The current config does not boot as some of the clearfog changes needed to be made on the helios4 also, generally speaking most changes for the clearfog should also be made on the helios4. Signed-off-by: Dennis Gilmore <dennis@ausil.us> Reviewed-by: Stefan Roese <sr@denx.de>
2020-07-09spi: Remove unnecessary #ifdefs in header fileSimon Glass
These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09bootstage: Fix 'stacked' typoSimon Glass
This should be 'stashed'. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09linux/kconfig.h: create two- and three-argument versions of CONFIG_IS_ENABLEDRasmus Villemoes
This adds a bunch of preprocessor magic to extend the capabilities of CONFIG_IS_ENABLED. The existing semantics of CONFIG_IS_ENABLED(FOO) expanding to a 1 or 0 (depending on build context and the defined-ness or not of the appropriate CONFIG_FOO/CONFIG_SPL_FOO/CONFIG_TPL_FOO) are of course preserved. With this, one is also allowed a two-argument form CONFIG_IS_ENABLED(FOO, (something)) which expands to something precisely when CONFIG_IS_ENABLED(FOO) would expand to 1, and expands to nothing otherwise. It is, in other words, completely equivalent to the three lines #if CONFIG_IS_ENABLED(FOO) something #endif The second argument must be parenthesized in order to allow any tokens, including a trailing comma, to appear - one use case for this is precisely to make it a bit more ergonomic to build an array and only include certain items depending on .config. That should increase both readability and not least "git grep"ability. A third variant is also introduced, CONFIG_IS_ENABLED(FOO, (xxx), (yyy)) which corresponds to #if CONFIG_IS_ENABLED(FOO) xxx #else yyy #endif Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-09linux/kconfig.h: remove unused helper macrosRasmus Villemoes
U-Boot does not have loadable modules, and nothing currently uses any of the (CONFIG_)?IS_(BUILTIN|MODULE) macros - only the (CONFIG_)?IS_ENABLED variants are ever used. While I understand the desire to keep this somewhat synchronized with linux, we've already departed by the introduction of the CONFIG_IS_ENABLED extra logic, and deleting these makes the next patch much simpler, since I won't have to duplicate a lot of logic for no real gain (as there are no users). Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-09linux/kconfig.h: simplify logic for choosing CONFIG_{SPL_, TPL_, }*Rasmus Villemoes
Instead of using the arg1_or_junk trick to pick between two choices, with a bit of duplication between the branches (and most of the CONFIG_TPL_BUILD case being redundant, as _IS_TPL is known to be defined to 1 in that case), simply define a prefix that we inject between CONFIG_ and the given config symbol. This only requires one level of indirection (to get the _CONFIG_PREFIX macro expanded before the token concatenation takes place), and makes it easy to, say, introduce a CONFIG_HOSTTOOL_ prefix. [I would expect most HOSTTOOL_ symbols to just be def_bool y, but it would allow us to clean up some of the ifdef HOSTCC mess in the sources shared between U-Boot and host tools.] Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-09video: Add comments to struct sandbox_sdl_platSimon Glass
This struct is not commented but needs it. Also fix the comment in check_vidconsole_output() about the encoding for the rotation value. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-07-09video: Add helpers for vidconsole for the copy framebufferSimon Glass
Add a convenience function to call video_sync_copy() for a vidconsole. Also add a memmove() helper, which does the memmove() as well as the sync. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09video: Add support for copying to a hardware framebufferSimon Glass
Some architectures use a cached framebuffer and flush the cache as needed so that changes are visible. This is supported by U-Boot. However x86 uses an uncached framebuffer with a 'write-combining' feature to speed up writes. Reads are permitted but they are extremely expensive. Unfortunately, reading from the frame buffer is quite common, e.g. to scroll it. This makes scrolling very slow. Add a new feature which supports copying modified parts of the frame buffer to the uncached hardware buffer. This speeds up scrolling by at least 10x on x86 so the extra complexity cost seems worth it. As a starting point, add the Kconfig, update the video structures to keep track of the buffer and add a function to do the copy. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09video: Add a comment for struct video_uc_platdataSimon Glass
Add a few notes to explain the purpose of each member of this struct. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09video: Drop unnecessary #ifdef around vid_console_color()Simon Glass
All of the functions in this file only apply if DM_VIDEO is enabled. Drop the #ifdef as it just clutters things up. Add the needed forward declaration. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09console: Add a way to output to serial onlySimon Glass
In the video drivers it is useful to print errors while debugging but doing so risks an infinite loop as the debugging info itself may go through the video drivers. Add a new console function that prints information only to the serial device, thus making it safe for use in debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09rtc: add dm_rtc_write() helperRasmus Villemoes
Similar to dm_rtc_read(), introduce a helper that allows the caller to write multiple consecutive 8-bit registers with one call. If the driver provides the ->write method, use that, otherwise loop using ->write8. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-07-09rtc: add dm_rtc_read helper and ->read methodRasmus Villemoes
Some users may want to read multiple consecutive 8-bit registers. Instead of each caller having to implement the loop, provide a dm_rtc_read() helper. Also, allow a driver to provide a ->read method, which can be more efficient than reading one register at a time. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-07-08lib: rsa: function to verify a signature against a hashHeiko Stuebner
rsa_verify() expects a memory region and wants to do the hashing itself, but there may be cases where the hashing is done via other means, like hashing a squashfs rootfs. So add rsa_verify_hash() to allow verifiying a signature against an existing hash. As this entails the same verification routines we can just move the relevant code over from rsa_verify() and also call rsa_verify_hash() from there. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
2020-07-08Update MEM_SUPPORT_64BIT_DATA to be always definedSimon Glass
Define this macro always so we don't need the preprocessor to check it. Convert the users to #if instead of #ifdef. Note that '#if MEM_SUPPORT_64BIT_DATA' does not give an error if the macro is not define. It just assumes zero. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de>
2020-07-08spl: fit: nand: fix fit loading in case of bad blocksDario Binacchi
The offset at which the image to be loaded from NAND is located is retrieved from the itb header. The presence of bad blocks in the area of the NAND where the itb image is located could invalidate the offset which must therefore be adjusted taking into account the state of the sectors concerned. cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dariobin@libero.it> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
2020-07-08spl: fix format of function documentationDario Binacchi
U-Boot adopted the kernel-doc annotation style. cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dariobin@libero.it> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-08debug_uart: Add CR before and after announce stringStefan Roese
Add linefeeds before and after the announce string. This makes the output easier to read, especially if some text follows the announce message without a specific additional CR. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-08tpm: add TPM2_GetRandom command supportDhananjay Phadke
Add support for TPM2 GetRandom command Signed-off-by: Dhananjay Phadke <dphadke@linux.microsoft.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-07Merge tag 'u-boot-rockchip-20200708' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-rockchip - dts sync from kernel for rk3399 boards; - Add Radxa Rock Pi N8, N10; - Some feature update for Pinebook Pro;
2020-07-07arm: vexpress64: Fix counter frequencyAndre Przywara
The arch timer on 64-bit Arm Ltd. platforms is driven by a 24 MHz crystal oscillator, so the frequency is not 25165824 MHz, as the current code suggests. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-07arm: actions: remove "CONFIG_SYS_SDRAM_SIZE" for Actions Owl Semi SoCsAmit Singh Tomar
Now that, we calculate SDRAM size by reading DDR registers, "CONFIG_SYS_SDRAM_SIZE" is no more needed. This commit removes "CONFIG_SYS_SDRAM_SIZE" from common configuration file. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2020-07-07image: Add support for ZSTD decompressionRobert Marko
This patch adds support for ZSTD decompression of FIT images. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr>
2020-07-07cmd: dm: Fixed/Added DM driver listing subcommandsNiel Fourie
Renamed dm "drivers" subcommand to "compat" (as it listed compatibility strings) and prevent it from segfaulting when drivers have no of_match populated. Added a new "drivers" subcommand to dump a list of all known DM drivers and for each, their uclass id, uclass driver and names of attached devices. Added a new "static" subcommand to dump a list of DM drivers with statically defined platform data. Signed-off-by: Niel Fourie <lusus@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-07cmd: fs: Add command to list supported fs typesNiel Fourie
Added command "fstypes" to list supported/included filesystems. Signed-off-by: Niel Fourie <lusus@denx.de> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Limit to sandbox] Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-07stm32mp1: use the command env info in env_checkPatrick Delaunay
Activate CMD_NVEDIT_INFO and use the new command "env info -d -p -q" to automatically save the environment on first boot. This patch allows to remove the env_default variable. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-07configs: stm32mp1: only support SD card after NOR in bootcmd_stm32mpPatrick Delaunay
In the boot command used in ST boards, bootcmd_stm32mp, only support the SD card as second stage, where is found the bootfs with DISTRO. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-07rockchip: Pinebook Pro: Fix SPI flash and store env on itPeter Robinson
Some minor fixes for SPI flash on the Pinebook Pro and also default to saving environment to the SPI flash as it's guaranteed to be on board. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> (applied with make savedefconfig) Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2020-07-07rockchip: Pinebook Pro: Fix USB and the USB attached keyboardPeter Robinson
The built in keyboard on the Pinebook Pro is attached via USB so fix this up to ensure USB works as expected. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2020-07-05Merge tag 'efi-2020-10-rc1' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-efi into next Pull request for UEFI sub-system for efi-2020-10-rc1 This series comprises error corrections for the UEFI subsystem: * correct consideration of timestamps for variable authentication * correct collection of data regions for code authentication * correct unit tests to test loading dbx * enable FAT_WRITE as required by the UEFI spec The boot manager uses log functions instead of printf() and debug(). The UEFI intialization state is exported.
2020-07-05Merge branch '2020-07-01-kconfig-etc-updates' into nextTom Rini
- Resync Kconfiglib with the v14.1.0 release. - Re-sync our <linux/compiler*h> files with v5.7-rc5 from upstream. - Fully resync checkpatch.pl with v5.7 release. To safely to all of the above, we have a few bugfixes about functions that need a 'static inline' but weren't. We also stop setting CROSS_COMPILE in arch/*/config.mk. Finally, with the above changes boards can now opt-in to optimizing inlining and we do this for the socfpga stratix10 platform for space savings.
2020-07-03efi_loader: export initialization stateHeinrich Schuchardt
Export the UEFI sub-system initialization state. This will allow to treat the setting of UEFI variables during and after initialization differently. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-07-01compilers: Introduce options for forcing inlining on SPL/TPLTom Rini
There are cases where when we allow the compiler to decide about making inline decisions rather than forcing them it can save us space. For now, we keep the default values for inlining that we have had historically. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-01compiler_types.h: Re-introduce CONFIG_OPTIMIZE_INLINING for U-BootTom Rini
In the Linux kernel, support for forcing inline functions to be made inline, rather than allowing the compiler to make its own choice has been removed. With respect to performance, modern GCC (and Clang) do a good job at deciding when to, or not to, inline code and there are no run-time requirements in Linux anymore. There is one downside to this, which is final binary size. On average in U-Boot removing this support grows SPL by almost 1 kilobyte. But there are cases where it shrinks the binary by making better inline choices than we had forced. Start by re-introducing CONFIG_OPTIMIZE_INLINING as a global which essentially reverts 889b3c1245de ("compiler: remove CONFIG_OPTIMIZE_INLINING entirely") from Linux. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-01compiler*.h: sync include/linux/compiler*.h with Linux 5.7-rc5Tom Rini
Copy these from Linux v5.7-rc5 tag. This brings in some handy new attributes and is otherwise important to keep in sync. We drop the reference to smp_read_barrier_depends() as it is not relevant on the architectures we support at this time, based on where it's implemented in Linux today. We drop the call to kasan_check_read() as that is not relevant to U-Boot as well. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-01riscv: Add Sipeed Maix supportSean Anderson
The Sipeed Maix series is a collection of boards built around the RISC-V Kendryte K210 processor. This processor contains several peripherals to accelerate neural network processing and other "ai" tasks. This includes a "KPU" neural network processor, an audio processor supporting beamforming reception, and a digital video port supporting capture and output at VGA resolution. Other peripherals include 8M of sram (accessible with and without caching); remappable pins, including 40 GPIOs; AES, FFT, and SHA256 accelerators; a DMA controller; and I2C, I2S, and SPI controllers. Maix peripherals vary, but include spi flash; on-board usb-serial bridges; ports for cameras, displays, and sd cards; and ESP32 chips. Currently, only the Sipeed Maix Bit V2.0 (bitm) is supported, but the boards are fairly similar. Documentation for Maix boards is located at <http://dl.sipeed.com/MAIX/HDK/>. Documentation for the Kendryte K210 is located at <https://kendryte.com/downloads/>. However, hardware details are rather lacking, so most technical reference has been taken from the standalone sdk located at <https://github.com/kendryte/kendryte-standalone-sdk>. Signed-off-by: Sean Anderson <seanga2@gmail.com>