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path: root/arch/sandbox/cpu/cpu.c
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2025-03-10common: clean up setjmp.hHeinrich Schuchardt
Separate setjmp.h into an architecture independent part and an architecture specific part. This simplifies moving from using struct jmp_buf_data directly to using type jmp_buf in our code which is the C compliant way. Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-12-18fdt: Swap the signature for board_fdt_blob_setup()Simon Glass
This returns a devicetree and updates a parameter with an error code. Swap it, since this fits better with the way U-Boot normally works. It also (more easily) allows leaving the existing pointer unchanged. No yaks were harmed in this change, but there is a very small code-size reduction. For sifive, the OF_BOARD option must be set for the function to be called, so there is no point in checking it again. Also OF_SEPARATE is defined always. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> [trini: Update total_compute] Signed-off-by: Tom Rini <trini@konsulko.com>
2024-11-03sandbox: Add a way to show the sandbox memory-mappingSimon Glass
This is mostly hidden in the background, but it is sometimes useful to look at it. Add a function to allow this. Signed-off-by: Simon Glass <sjg@chromium.org>
2024-10-11arch: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILDSimon Glass
Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass <sjg@chromium.org>
2024-09-18sandbox: Implement reference counting for address mappingSimon Glass
An address may be mapped twice and unmapped twice. Delete the mapping only when the last user unmaps it. Fix a missing comment while here. Signed-off-by: Simon Glass <sjg@chromium.org>
2024-09-18sandbox: Unmap old tagsSimon Glass
So far unmapping has not been implemented. This means that if one test maps a pointer to an address with map_sysmem(), then a second test can use that same pointer, by mapping the address back to a pointer with map_to_sysmem(). This is not really desirable, even if it doesn't cause any problems at the moment. Implement unmapping, to clean this up. Signed-off-by: Simon Glass <sjg@chromium.org>
2024-09-18sandbox: Update cpu to use loggingSimon Glass
Use log_debug() instead of including the function name in the string. Add one more debug for PCI. Signed-off-by: Simon Glass <sjg@chromium.org>
2024-08-09sandbox: fdt: Avoid overwriting an existing fdtSimon Glass
Since the removal of OF_HOSTFILE logic in board_fdt_blob_setup(), the logic for obtaining the DT is handled in the OF_BOARD option. If a devicetree comes from a bloblist it is immediately overwritten by this function. Fix this by skipping the function if a devicetree is already present. This is sort-of a fix for e7fb7896 ("sandbox: Remove OF_HOSTFILE") but it has only come to light since bloblist was added, so I have not added a Fixes tag. Unfortunately it is not possible to report the correct FDT source with the current code. It might be best to use an error-return code for board_fdt_blob_setup() so that an error can be reported if the board does not provide the DT. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-12-21Merge patch series "Complete decoupling of bootm logic from commands"Tom Rini
Simon Glass <sjg@chromium.org> says: This series continues refactoring the bootm code to allow it to be used with CONFIG_COMMAND disabled. The OS-handling code is refactored and a new bootm_run() function is created to run through the bootm stages. This completes the work. A booti_go() function is created also, in case it proves useful, but at last for now standard boot does not use this. This is cmdd (part d of CMDLINE refactoring) It depends on dm/bootstda-working which depends on dm/cmdc-working
2023-12-21sandbox: bootm: Enable more bootm OS methodsSimon Glass
It is useful for sandbox to build as much code as possible. Enable support for booting various other operating systems. Add the missing cache functions. These operating systems do not actually boot on sandbox, of course. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-12-21sandbox: Audit config.h and common.h usageTom Rini
Remove and replace common.h and config.h in sandbox when it's not needed and add some explicit includes where needed. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2023-06-21sandbox: Add a dummy dcache_status() functionEmanuele Ghidoli
This adds dcache_status() so that code using it can build without error on sandbox. This is required in preparation of adding cache handling into get_ram_size function. Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2023-04-28sandbox: mark sandbox_exit() as no return.Heinrich Schuchardt
Fix a -Wimplicit-fallthrough warning in sandbox_sysreset_request(). Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2023-04-27sandbox64: fix: return unsigned long in readq()Abdellatif El Khlifi
make readq return unsigned long readq should return 64-bit data Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-09-29sandbox: Support setting up the other FDT for testingSimon Glass
Provide a way to copy over the 'other' FDT when running tests. This loads it and allocates memory for the copy, if not done already, then does the copy. Avoid using U-Boot's malloc() pool for these copies, at least for now, since they are part of the test system. Tidy up the cpu.c header files while here. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28sandbox: show error if the device-tree cannot be loadedHeinrich Schuchardt
U-Boot's printf() used before setting up U-Boot's serial driver does not create any output. Use os_printf() for error messages related to loading the device-tree. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-05-05sandbox: Avoid binman error when run without device treeSimon Glass
With sandbox, U-Boot can be run without a device tree (i.e. no -d or -T parameter). In this case an empty device tree is created for convenience. With a recent change this causes an error due to the missing '/binman' node. Add this node to avoid the problem, as well as a test that U-Boot can be run without a device tree. Fixes: 059df5624b ("arch: Kconfig: imply BINMAN for SANDBOX") Fixes: https://source.denx.de/u-boot/u-boot/-/issues/11 Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-19doc: replace @return by Return:Heinrich Schuchardt
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-10-27sandbox: Remove OF_HOSTFILEIlias Apalodimas
OF_HOSTFILE is used on sandbox configs only. Although it's pretty unique and not causing any confusions, we are better of having simpler config options for the DTB. So let's replace that with the existing OF_BOARD. U-Boot would then have only three config options for the DTB origin. - OF_SEPARATE, build separately from U-Boot - OF_BOARD, board specific way of providing the DTB - OF_EMBED embedded in the u-boot binary(should not be used in production Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-27sandbox: Correct uninit conflictSimon Glass
It is not possible to remove the state before driver model is uninited, since the devices are allocated in the memory buffer. Also it is not possible to uninit driver model afterwards, since the RAM has been freed. Drop the uninit altogether, since it is not actually necessary. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-05-18common: Drop linux/delay.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18common: Drop bootstage.h from common headerSimon Glass
Move this fairly uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-12-02common: Move ARM cache operations out of common.hSimon Glass
These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-10-27sandbox: Drop 'const' from sandbox_write()Simon Glass
This function writes to its address so the address should not be declared as const. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08sandbox: Allow use of real I/O with readl(), etc.Simon Glass
At present these functions are stubbed out. For more comprehensive testing with PCI devices it is useful to be able to fully emulate I/O access. Add simple implementations for these. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: change to use 'const void *' in sandbox_write(); cast 'addr' in read/write macros in arch/sandbox/include/asm/io.h; remove the unnecessary cast in readq/writeq in nvme.h] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2018-11-20sandbox: remove stray DEBUGHeinrich Schuchardt
DEBUG should not be defined in production code. Change printf() to debug() where this writes a debug message. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-23sandbox: Fix setjmp/longjmpAlexander Graf
In sandbox, longjmp returns to itself in an endless loop because os_longjmp() calls into longjmp() which is provided by U-Boot which again calls os_longjmp(). Setjmp on the other hand must not return because otherwise the return freees up stack elements that we need during longjmp(). The only straight forward fix that doesn't involve nasty hacks I could find is to directly link against the system setjmp/longjmp implementations. That means we just provide the compiler with hints that the symbol will be available and actually fill them out with versions from libc. This approach should be reasonably platform agnostic Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23sandbox: Enhance map_to_sysmem() to handle foreign pointersSimon Glass
At present map_sysmem() maps an address into the sandbox RAM buffer, return a pointer, while map_to_sysmem() goes the other way. The mapping is currently just 1:1 since a case was not found where a more flexible mapping was needed. PCI does have a separate and more complex mapping, but uses its own mechanism. However this arrange cannot handle one important case, which is where a test declares a stack variable and passes a pointer to it into a U-Boot function which uses map_to_sysmem() to turn it into a address. Since the pointer is not inside emulated DRAM, this will fail. Add a mapping feature which can handle any such pointer, mapping it to a simple tag value which can be passed around in U-Boot as an address. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-06-03sandbox: Add a setjmp() implementationSimon Glass
Add an implementation of setjmp() and longjmp() which rely on the underlying host C library. Since we cannot know how large the jump buffer needs to be, pick something that should be suitable and check it at runtime. At present we need access to the underlying struct as well. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-05libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>Masahiro Yamada
Thomas reported U-Boot failed to build host tools if libfdt-devel package is installed because tools include libfdt headers from /usr/include/ instead of using internal ones. This commit moves the header code: include/libfdt.h -> include/linux/libfdt.h include/libfdt_env.h -> include/linux/libfdt_env.h and replaces include directives: #include <libfdt.h> -> #include <linux/libfdt.h> #include <libfdt_env.h> -> #include <linux/libfdt_env.h> Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-18sandbox: Add 64-bit sandboxMario Six
To debug device tree issues involving 32- and 64-bit platforms, it is useful to have a generic 64-bit platform available. Add a version of the sandbox that uses 64-bit integers for its physical addresses as well as a modified device tree. Signed-off-by: Mario Six <mario.six@gdsys.cc> Added CONFIG_SYS_TEXT_BASE to configs/sandbox64_defconfig Signed-off-by: Simon Glass <sjg@chromium.org>
2017-10-02sandbox: Use asm-generic/io.hPaul Burton
Convert the sandbox architecture to make use of the new asm-generic/io.h to provide address mapping functions. As sandbox actually performs non-identity mapping between physical & virtual addresses we can't simply make use of the generic mapping functions, but are able to implement phys_to_virt() & make use of it from map_physmem(). Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2017-08-28sandbox: Add a dummy invalidate_dcache_range() functionBin Meng
This adds invalidate_dcache_range() so that some drivers can build without error on sandbox. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-06-05bootstage: Require timer_get_boot_us() to be definedSimon Glass
At present we provide a default version of this function for use by bootstage. However it uses the system timer and therefore likely requires driver model. This makes it impossible to time driver-model init. Drop the function and require boards to provide their own. Add a sandbox version also. There is a default implememtation in lib/time.c for boards which use CONFIG_SYS_TIMER_COUNTER. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Use dm.h header when driver mode is usedSimon Glass
This header includes things that are needed to make driver build. Adjust existing users to include that always, even if other dm/ includes are present Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14sandbox: Don't use PCI in SPLSimon Glass
PCI is not supported in SPL for sandbox, so avoid using it. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14sandbox: Add some missing headers in cpu.cSimon Glass
These headers are needed in case they are not transitively included. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14sandbox: Correct header file order in cpu.cSimon Glass
The dm/ file should go at the end. Move it. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-19sandbox: Add a way to skip time delaysSimon Glass
Some tests are slow due to delays which are unnecessary on sandbox. The worst offender is USB where we lose two seconds. Add a way to disable time delays. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21sandbox: Use the reset driver to handle resetSimon Glass
Move sandbox over to use the reset uclass for reset, instead of a direct call to do_reset(). This allows us to add tests. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-06-10sandbox: Add an implementation for cleanup_before_linux_select()Simon Glass
Support this function so we can use Chrome OS verified boot with sandbox. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-06-04sandbox: Tidy up terminal restoreSimon Glass
For some reason 'u-boot -D' does not restore the terminal correctly when the 'reset' command is used. Call the terminal restore function explicitly in this case. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2015-05-05sandbox: Add test function to advance timeJoe Hershberger
Add a function that maintains an offset to include in the system timer values returned from the lib/time.c APIs. This will allow timeouts to be skipped instantly in tests Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-23fdt: sandbox: Move setup code from board_f to fdtdecSimon Glass
We want to be able to set up the device tree in SPL, so move this code to a common place. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-19sandbox: Split bootm code out into lib/bootmSjoerd Simons
Follow the convention of other architectures and move the platform specific linux bootm code into sandbox/lib/bootm.c. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-16dm: sandbox: pci: Add PCI support for sandboxSimon Glass
Add the required header information, device tree nodes and I/O accessor functions to support PCI on sandbox. All devices are emulated by drivers which can be added as required for testing or development. Signed-off-by: Simon Glass <sjg@chromium.org>