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* Merge tag 'uniphier-v2020.10-2' of ↵WIP/18Aug2020Tom Rini2020-08-1826-110/+255
|\ | | | | | | | | | | | | | | | | | | https://gitlab.denx.de/u-boot/custodians/u-boot-uniphier UniPhier SoC updates for v2020.10 (2nd) - minor code cleanups - sync DT with Linux
| * ARM: dts: uniphier: resync DT with Linux 5.9-rc1Masahiro Yamada2020-08-1818-61/+235
| | | | | | | | Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * ARM: uniphier: use FIELD_GET() to get access to revision register fieldsMasahiro Yamada2020-08-182-11/+15
| | | | | | | | | | | | Define register fields as macros, and use FIELD_GET(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * serial: uniphier: fix typo in commentMasahiro Yamada2020-08-181-1/+1
| | | | | | | | Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * ARM: uniphier: remove unneeded header inclusion from board_late_init.cMasahiro Yamada2020-08-181-2/+1
| | | | | | | | | | | | | | | | | | | | <nand.h> is unneeded since commit 9248a78f40d6 ("ARM: UniPhier: remove Denali NAND controller fixup code"). <linux/io.h> is uneeded since commit 1320fa2e55d2 ("ARM: uniphier: remove workaround for the NAND write protect"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * ARM: uniphier: remove unused uniphier_pin_init()Masahiro Yamada2020-08-183-32/+0
| | | | | | | | | | | | | | This function is unused since commit 862274913f8f ("bus: uniphier-system-bus: move hardware init from board files"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * ARM: uniphier: rename include guard of include/configs/uniphier.hMasahiro Yamada2020-08-181-3/+3
|/ | | | | | Make the include guard match to the file name. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* Merge tag 'efi-2020-10-rc3-2' of ↵WIP/15Aug2020Tom Rini2020-08-1512-313/+554
|\ | | | | | | | | | | | | | | | | | | | | | | | | https://gitlab.denx.de/u-boot/custodians/u-boot-efi Pull request for UEFI sub-system for efi-2020-10-rc3 (2) This series includes bug fixes for: * UEFI secure boot - images with multiple signatures * UEFI secure boot - support for intermediate certificates * corrections for UEFI unit tests * missing loadaddr on MAIX board
| * riscv: load addresses for Sipeed MAIXHeinrich Schuchardt2020-08-141-0/+9
| | | | | | | | | | | | Define default load addresses and the device tree name for the Sipeed MAIX. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
| * test/py: efi_secboot: modify 'multiple signatures' test caseAKASHI Takahiro2020-08-142-12/+19
| | | | | | | | | | | | | | | | The test case 5 in test_signed (multiple signatures) must be modified and aligned with the change introduced in the previous commit ("efi_loader: signature: correct a behavior against multiple signatures"). Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
| * efi_loader: signature: correct a behavior against multiple signaturesAKASHI Takahiro2020-08-143-88/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under the current implementation, all the signatures, if any, in a signed image must be verified before loading it. Meanwhile, UEFI specification v2.8b section 32.5.3.3 says, Multiple signatures are allowed to exist in the binary’s certificate table (as per PE/COFF Section “Attribute Certificate Table”). Only one hash or signature is required to be present in db in order to pass validation, so long as neither the SHA-256 hash of the binary nor any present signature is reflected in dbx. This patch makes the semantics of signature verification compliant with the specification mentioned above. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
| * efi_loader: variable: fix secure state initializationAKASHI Takahiro2020-08-131-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Under the new file-based variable implementation, the secure state is always and falsely set to 0 (hence, the secure boot gets disabled) after the reboot even if PK (and other signature database) has already been enrolled in the previous boot. This is because the secure state is set up *before* loading non-volatile variables' values from saved data. This patch fixes the order of variable initialization and secure state initialization. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Fixes: 5f7dcf079de8 ("efi_loader: UEFI variable persistence")
| * test/py: efi_secboot: add test for intermediate certificatesAKASHI Takahiro2020-08-134-0/+305
| | | | | | | | | | | | | | | | In this test case, an image may have a signature with additional intermediate certificates. A chain of trust will be followed and all the certificates in the middle of chain must be verified before loading. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
| * test/py: efi_secboot: small rework for adding a new testAKASHI Takahiro2020-08-132-13/+3
| | | | | | | | | | | | | | It won't be very useful to customize HELLO_PATH and EFI_SECBOOT_IMAGE_NAME under the current code base. So just remove them. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
| * efi_loader: signature: rework for intermediate certificates supportAKASHI Takahiro2020-08-135-213/+188
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In this commit, efi_signature_verify(with_sigdb) will be re-implemented using pcks7_verify_one() in order to support certificates chain, where the signer's certificate will be signed by an intermediate CA (certificate authority) and the latter's certificate will also be signed by another CA and so on. What we need to do here is to search for certificates in a signature, build up a chain of certificates and verify one by one. pkcs7_verify_one() handles most of these steps except the last one. pkcs7_verify_one() returns, if succeeded, the last certificate to verify, which can be either a self-signed one or one that should be signed by one of certificates in "db". Re-worked efi_signature_verify() will take care of this step. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
| * efi_loader: variable: keep temporary buffer during the authenticationAKASHI Takahiro2020-08-131-7/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a bug fix; Setting an authenticated variable may fail due to a memory corruption in the authentication. A temporary buffer will, if needed, be allocated to parse a variable's authentication data, and some portion of buffer, specifically signer's certificates, will be referenced by efi_signature_verify(). So the buffer should be kept valid until the authentication process is finished. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
| * cmd/efidebug: missing initialization of load_optionsHeinrich Schuchardt2020-08-131-1/+1
| | | | | | | | | | | | | | Variable load_options must be initialized to NULL to avoid a segmentation fault when freeing the memory this variable points to. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* | Merge branch '2020-08-14-assorted-updates'Tom Rini2020-08-1484-43/+9077
|\ \ | | | | | | | | | | | | | | | - Xen guest and some paravirt driver support. - Aspeed SoC updates - Broadcom IPROC PCIe RC driver
| * | cmd: demo: Remove duplicated help message for list subcommandMichal Simek2020-08-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to show demo list description twice when help demo is performed. The patch removes duplicated entry. Current state: => help demo demo - Driver model (dm) demo operations Usage: demo list List available demo devices demo hello <num> [<char>] Say hello demo light [<num>] Set or get the lights demo status <num> Get demo device status demo list List available demo devices Fixes: a02af4aeece4 ("dm: demo: Add a simple GPIO demonstration") Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | doc: xen: Add Xen guest ARM64 board documentationAnastasiia Lukianenko2020-08-143-0/+91
| | | | | | | | | | | | Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | board: xen: De-initialize before jumping to LinuxOleksandr Andrushchenko2020-08-143-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | Free resources used by Xen board before jumping to Linux kernel. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | xen: pvblock: Print found devices indicesAnastasiia Lukianenko2020-08-141-0/+20
| | | | | | | | | | | | | | | | | | Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | xen: pvblock: Implement front-back protocol and do IOAnastasiia Lukianenko2020-08-142-12/+348
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement Xen para-virtual frontend to backend communication and actually read/write disk data. This is based on mini-os implementation of the para-virtual block frontend driver. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | xen: pvblock: Read XenStore configuration and initializeAnastasiia Lukianenko2020-08-141-1/+284
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Read essential virtual block device configuration data from XenStore, initialize front ring and event channel. Update block device description with actual block size. Use code for XenStore from mini-os. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | xen: pvblock: Enumerate virtual block devicesAnastasiia Lukianenko2020-08-141-2/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | Enumerate Xen virtual block devices found in XenStore and instantiate pvblock devices. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | xen: pvblock: Add initial support for para-virtualized block driverAnastasiia Lukianenko2020-08-1415-0/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add initial infrastructure for Xen para-virtualized block device. This includes compile-time configuration and the skeleton for the future driver implementation. Add new class UCLASS_PVBLOCK which is going to be a parent for virtual block devices. Add new interface type IF_TYPE_PVBLOCK. Implement basic driver setup by reading XenStore configuration. Signed-off-by: Andrii Anisov <andrii_anisov@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
| * | xen: Port Xen grant table driver from mini-osOleksandr Andrushchenko2020-08-146-1/+258
| | | | | | | | | | | | | | | | | | | | | Make required updates to run on u-boot. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | xen: Port Xen bus driver from mini-osOleksandr Andrushchenko2020-08-147-2/+693
| | | | | | | | | | | | | | | | | | | | | Make required updates to run on u-boot and strip test code. Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
| * | lib: sscanf: add sscanf implementationAndrii Anisov2020-08-146-0/+1011
| | | | | | | | | | | | | | | | | | | | | | | | | | | Port sscanf implementation from mini-os and introduce new Kconfig option to enable it: CONFIG_SSCANF. Disable by default. Signed-off-by: Andrii Anisov <andrii_anisov@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
| * | linux/compat.h: Add wait_event_timeout macroOleksandr Andrushchenko2020-08-142-1/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add wait_event_timeout - sleep until a condition gets true or a timeout elapses. This is a stripped version of the same from Linux kernel with the following u-boot specific modifications: - no wait queues supported - use u-boot timer to detect timeouts - check for Ctrl-C pressed during wait Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> [trini: Drop atomic_read from gadget/ether.c as this has existed for a while and now causes problems] Signed-off-by: Tom Rini <trini@konsulko.com>
| * | serial: serial_xen: Add Xen PV serial driverPeng Fan2020-08-147-8/+220
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for Xen para-virtualized serial driver. This driver fully supports serial console for the virtual machine. Please note that as the driver is initialized late, so no banner nor memory size is visible. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | xen: Port Xen event channel driver from mini-osOleksandr Andrushchenko2020-08-145-4/+242
| | | | | | | | | | | | | | | | | | | | | | | | Make required updates to run on u-boot. Strip functionality not needed by U-boot. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | xen: Port Xen hypervisor related code from mini-osOleksandr Andrushchenko2020-08-149-4/+393
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Port hypervisor related code from Mini-OS. This is referencing the code of Mini-OS from [1] by Huang Shijie and Volodymyr Babchuk which is for ARM64. Update essential arch code to support required bit operations, memory barriers etc. Copyright for the bits ported belong to at least the following authors, please see related files for details: Copyright (c) 2002-2003, K A Fraser Copyright (c) 2005, Grzegorz Milos, gm281@cam.ac.uk,Intel Research Cambridge Copyright (c) 2014, Karim Allah Ahmed <karim.allah.ahmed@gmail.com> [1] - https://github.com/zyzii/mini-os.git Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> [trini: Drop wmb() from musb-net/linux-compat.h now] Signed-off-by: Tom Rini <trini@konsulko.com>
| * | board: Introduce xenguest_arm64 boardAndrii Anisov2020-08-1413-0/+431
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a minimal Xen guest board running as a virtual machine under Xen Project's hypervisor [1], [2]. Part of the code is ported from Xen mini-os and also uses work initially done by different authors from NXP: please see relevant files for their copyrights. [1] https://xenbits.xen.org [2] https://wiki.xenproject.org/ Signed-off-by: Andrii Anisov <andrii_anisov@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | xen: Add essential and required interface headersOleksandr Andrushchenko2020-08-1414-0/+3242
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add essential and required Xen interface headers only taken from the stable Linux kernel stable/linux-5.7.y at commit 66dfe4522160 Linux 5.7.5. These are better suited for U-boot than the original headers from Xen as they are the stripped versions of the same. At the same time use public protocols from Xen RELEASE-4.13.1, at commit 6278553325a9 update Xen version to 4.13.1 as those have more comments in them. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com> Acked-by: Peng Fan <peng.fan@nxp.com>
| * | Kconfig: Introduce CONFIG_XENPeng Fan2020-08-141-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce CONFIG_XEN to make U-Boot could be used as bootloader for a virtual machine. Without bootloader, we could successfully boot up android on XEN, but we need need bootloader to support A/B, dm verify and etc. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | Add MIT LicenseAnastasiia Lukianenko2020-08-142-0/+21
| | | | | | | | | | | | Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
| * | configs: evb-ast2500: Convert to OF_SEPARATEChia-Wei, Wang2020-08-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch DTB provider form OF_EMBED to OF_SEPARATE to avoid the compile warning message: ==================== WARNING ====================== CONFIG_OF_EMBED is enabled. This option should only be used for debugging purposes. Please use CONFIG_OF_SEPARATE for boards in mainline. See doc/README.fdt-control for more info. ==================================================== Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | configs: evb-ast2500: Move BOOTCOMMAND from header to defconfigChia-Wei, Wang2020-08-142-2/+2
| | | | | | | | | | | | | | | | | | | | | Move the BOOTCOMMAND definition from the board inclusion header to the default configuration file. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | include/configs: aspeed: Remove hardcoded variablesChia-Wei, Wang2020-08-142-7/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | The hardcoded platform variables such as DRAM base address are not common to Aspeed SoCs AST24xx/AST25xx/AST26xx. This patch replaces those hardcoded with macros defined in a newly added header, where the basic SoC HW information are assigned accordingly. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | cosmetic: aspeed: ast2500: Rename board fileChia-Wei, Wang2020-08-143-1/+2
| | | | | | | | | | | | | | | | | | | | | Rename the ast2500-board.c to board_common.c and place the renamed file under the ast2500 folder. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | aspeed: ast2500: Add lowlevel_init assemblyChia-Wei, Wang2020-08-143-25/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original lowlevel_init function of AST2500 is written in C. However, the C runtime environment is not ready until _main execution. This patch adds the assembly version of the lowlevel_init function. Additional initialization to DRAM configuration and LPC reset source are also added. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | MAINTAINERS: Add maintainers for Aspeed SoCsChia-Wei, Wang2020-08-141-0/+12
| | | | | | | | | | | | | | | | | | Update maintainers for Aspeed SoC platforms. Signed-off-by: Chia-Wei, Wang <chiawei_wang@aspeedtech.com>
| * | drivers: pcie: add Broadcom IPROC PCIe RC driverSrinath Mannam2020-08-143-0/+1295
| | | | | | | | | | | | | | | | | | | | | | | | Add support for IPROC PAXC PCIe RC driver. Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com> Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Reviewed-by: Simon Glass <sjg@chromium.org>
| * | drivers: pci: add api to get dma regionsRayagonda Kokatanur2020-08-142-1/+44
|/ / | | | | | | | | | | Add api to get dma regions. Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
* | Merge https://gitlab.denx.de/u-boot/custodians/u-boot-riscvTom Rini2020-08-1414-110/+201
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | - Fix HiFive Unleashed the broken problem by call fix_fdt() before reserve_fdt(). Please refer to https://www.mail-archive.com/u-boot@lists.denx.de/msg379444.html for master u-boot broken for HiFive Unleashed. - Add unaligned exception cmd. - Refine sifive/fu540 spl flow. - Add additional crash information for efi. - Update sipeed/maix doc. - Two minor refine.
| * common/board_f: make sure to call fix_fdt() before reserve_fdt()Pragnesh Patel2020-08-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | There may be a chance that board specific fix_fdt() will change the size of FDT blob so it's safe to call reserve_fdt() after fix_fdt() otherwise global data (gd) will overwrite with FDT blob values. Fixes: a8492e25ac71 ("riscv: Expand the DT size before copy reserved memory node") Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
| * riscv: additional crash informationHeinrich Schuchardt2020-08-141-22/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an exception occurs, the relocated program counter and return address are required for an analysis. With this patch you get: => exception undefined Unhandled exception: Illegal instruction EPC: 0000000080595908 RA: 000000008059c0c6 TVAL: 000000008030c01e EPC: 0000000080007908 RA: 000000008000e0c6 reloc adjusted We can use the relocated addresses to find the involved functions in u.boot.map: .text.do_undefined 0x0000000080007908 0x8 cmd/built-in.o .text.cmd_process 0x000000008000dfcc 0x11a common/built-in.o 0x000000008000dfcc cmd_process If an exception occurs in an UEFI binary additionally the load addresses of the UEFI binaries are needed. With this patch: => setenv efi_selftest exception => bootefi selftest Unhandled exception: Illegal instruction EPC: 000000008042e18a RA: 000000008042e18a TVAL: 000000008030c01e EPC: 000000007fea018a RA: 000000007fea018a reloc adjusted UEFI image [0x0000000000000000:0xffffffffffffffff] '/\selftest' UEFI image [0x000000008042e000:0x000000008042e43f] pc=0x18a '/bug.efi' The value pc=0x18a matches the position of the illegal instruction in efi_selftest_miniapp_exception.efi (loaded as /bug.efi); asm volatile (".word 0xffffffff\n"); 00000180 93 85 C5 11 1C 64 22 85 82 97 FF FF FF FF 1C 64 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Sean Anderson <seanga2@gmail.com> Tested-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
| * cmd: exception: unaligned data access on RISC-VHeinrich Schuchardt2020-08-141-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The command 'exception' can be used to test the handling of exceptions. Currently the exception command only allows to create an illegal instruction exception on RISC-V. Provide a sub-command 'exception unaligned' to cause a misaligned load address exception. Adjust the online help for 'exception undefined'. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Rick Chen <rick@andestech.com>
| * doc: riscv: debug UART for MAIXHeinrich Schuchardt2020-08-141-0/+10
| | | | | | | | | | | | | | Provide the required settings for the debug UART. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Sean Anderson <seanga2@gmail.com>
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