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Simon Glass <[email protected]> says:
Each arch does something slightly different before booting the OS. Some
archs even do different things depending on the CPU type.
It is quite hard to know what actually happens in the final milliseconds
before the OS boot.
This series attempts to start cleaning up U-Boot in this area.
The basic intent is to create a new bootm_final() function which can be
called by all archs. It provides some flags for a couple of necessary
variations but otherwise it is generic.
All architectures are converted over to use this new function.
board_quiesce_devices() is moved into bootm_final() so that all archs
benefit from it.
This series fixes a bug in device_remove() is fixed where removing a
parent with specialised flags (e.g. DM_REMOVE_ACTIVE_ALL) could leave
children activated, since they do not match the flags. This fixes is
needed to avoid bootm_final() causing test failures on sandbox.
Future work could take this a little further:
- Convert EFI loader to use the same function
- Improve comments for cleanup_before_linux() across architectures
- Support fake-run tracing on all archs
Link: https://lore.kernel.org/r/[email protected]
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Add a call to bootm_final() before jumping to the kernel. This adds
the "Starting kernel" message, bootstage tracking,
board_quiesce_devices() and dm_remove_devices_active() which were not
previously called on m68k.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Angelo Dureghello <[email protected]>
Tested-by: Angelo Dureghello <[email protected]>
Acked-by: Kuan-Wei Chiu <[email protected]>
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Quentin Schulz <[email protected]> says:
This migrates the last user of the legacy LED API, IMX233-OLinuXino and
net/bootp.c, to the modern LED framework.
I do have concern about being able to use BOOTP in SPL? In which case, I
should probably add an additional check on CONFIG_IS_ENABLED(LED) in
addition to IS_ENABLED(CONFIG_LED_BOOT)?
I haven't tested this as I do not own an IMX233-OLinuXino, so please
give this a try if you own this device.
Then, since there's no user left of this legacy API, it is entirely
removed.
Link: https://lore.kernel.org/r/[email protected]
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No user of the legacy LED API anymore (except Sunxi with the PinePhone
but that is now a Sunxi-specific implementation), so let's remove
anything related.
Signed-off-by: Quentin Schulz <[email protected]>
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Add support for the Motorola 68040 architecture. Currently, m68k
support in U-Boot is primarily focused on ColdFire variants. Introduce
the necessary infrastructure to support the classic M680x0 series,
specifically targeting the M68040 as emulated by QEMU.
The implementation includes exception vectors, early startup code, and
minimal CPU initialization and relocation stubs. It also defines the
standard m68k boot information structure used for passing hardware
information to the operating system. To ensure compatibility, ColdFire-
specific library objects such as cache and interrupt handling are
excluded from the build when M68040 is selected.
Additionally, apply a specific workaround during the early memory
reservation stage. Use a manual loop to clear global data instead of
the standard memset() function, as utilizing memset() at this point was
observed to cause a hang on the QEMU platform.
Signed-off-by: Kuan-Wei Chiu <[email protected]>
Acked-by: Angelo Dureghello <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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For armv8 we are adding proper page permissions for the relocated U-Boot
binary. Add a weak function that can be used across architectures to change
the page permissions
Tested-by: Neil Armstrong <[email protected]> # on AML-S905X-CC
Signed-off-by: Ilias Apalodimas <[email protected]>
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All of the current definitions of arch_lmb_reserve() are doing the
same thing -- reserve the region of memory occupied by U-Boot,
starting from the current stack address to the ram_top. Introduce a
function lmb_reserve_uboot_region() which does this, and do away with
the arch_lmb_reserve() function.
Instead of using the current value of stack pointer for starting the
reserved region, have a fixed value, considering the stack size config
value.
Signed-off-by: Sughosh Ganu <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Ilias Apalodimas <[email protected]>
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The current LMB API's for allocating and reserving memory use a
per-caller based memory view. Memory allocated by a caller can then be
overwritten by another caller. Make these allocations and reservations
persistent using the alloced list data structure.
Two alloced lists are declared -- one for the available(free) memory,
and one for the used memory. Once full, the list can then be extended
at runtime.
[sjg: Use a stack to store pointer of lmb struct when running lmb tests]
Signed-off-by: Sughosh Ganu <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
[sjg: Optimise the logic to add a region in lmb_add_region_flags()]
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Only m68k and powerpc use this field, so move it to the arch-specific
info, to reduce the size for other archs.
Signed-off-by: Simon Glass <[email protected]>
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Drop all duplicate newlines. No functional change.
Signed-off-by: Marek Vasut <[email protected]>
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The implementation of icache_invalid appears to be doing what other
architectures call invalidate_icache_all so rename to match.
Reviewed-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Implement a weak default version of flush_dcache_all which is based on
the ARM default, which is to flush the entire range via
flush_dcache_range(...).
Acked-by: Angelo Dureghello <[email protected]>
Acked-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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This follows the example of RISC-V where <asm/global_data.h> includes
<asm/u-boot.h> directly as "gd" includes a reference to bd_info already
and so the first must include the second anyhow. We then remove
<asm/u-boot.h> from all of the places which include references to "gd"
an so have <asm/global_data.h> already.
Signed-off-by: Tom Rini <[email protected]>
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enabled""
As reported by Jonas Karlman this series breaks booting on some AArch64
platforms with common use cases. For now the best path forward is to
revert the series.
This reverts commit 777c28460947371ada40868dc994dfe8537d7115, reversing
changes made to ab3453e7b12daef47b9e91da2a2a3d48615dc6fc.
Link: https://lore.kernel.org/u-boot/[email protected]/
Signed-off-by: Tom Rini <[email protected]>
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Simon Glass <[email protected]> says:
This series is the culmanation of the current line of refactoring
series. It adjusts pxe to call the booting functionality directly
rather than going through the command-line interface.
With this is is possible to boot using the extlinux bootmeth without
the command line enabled.
It also updates fastboot to do a similar thing.
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Allow these functions to be compiled in when CONFIG_BOOTM is enabled,
even if CONFIG_CMD_BOOTM is not.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Angelo Dureghello <[email protected]>
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Simon Glass <[email protected]> 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
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Adjust boot_os_fn to use struct bootm_info instead of the separate
argc, argv and image parameters. Update the handlers accordingly. Few
of the functions make use of the arguments, so this improves code size
slightly.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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The current do_reset() is called from a command context. Add a function
which can be used from anywhere, as is done on ARM.
Since there are lots of reset functions, this one actually just calls
do_reset(). Future refactoring could correct this.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Angelo Dureghello <[email protected]>
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In the architecture global data, replace the one case of u32 with
unsigned long. Now, we can drop config.h here but then do need to add it
in two m68k-centric spaces.
Acked-by: Angelo Dureghello <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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There are no platforms which enable this feature, so remove it.
Signed-off-by: Tom Rini <[email protected]>
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We can remove common.h from most cases of the code here, and only a few
places need an additional header instead.
Signed-off-by: Tom Rini <[email protected]>
Acked-by: Angelo Dureghello <[email protected]>
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The QEMU emulation of m68k does not support DMA timer, the only
timer that is supported is the PIT timer. Implement trivial PIT
timer support for m68k.
Signed-off-by: Marek Vasut <[email protected]>
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There is an existing CONFIG_MCFTMR Kconfig symbol,
use it and drop all other instances of CFG_MCFTMR.
This duality is likely a result of bogus conversion
to Kconfig.
Fixes: 7ff7b46e6ce ("m68k: rename CONFIG_MCFTMR to CFG_MCFTMR")
Signed-off-by: Marek Vasut <[email protected]>
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Add ashrdi3.c to private libgcc.
Signed-off-by: Angelo Dureghello <[email protected]>
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This is not a Kconfig option so changing to _CFG.
Signed-off-by: Angelo Durgehello <[email protected]>
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This converts 9 usages of this option to the non-SPL form, since there is
no SPL_LMB defined in Kconfig
Signed-off-by: Simon Glass <[email protected]>
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At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks. Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This is not needed and we should avoid typedefs. Use the struct instead.
Signed-off-by: Simon Glass <[email protected]>
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Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.
Signed-off-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Tom Rini <[email protected]> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
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With commit ce39ee28ec31 ("zynqmp: Do not place u-boot to reserved memory
location"), the function board_get_usable_ram_top() is allocating
MMU_SECTION_SIZE of about 2MB using lmb_alloc(). But we dont have this
much memory in case of mini U-Boot.
Keep these functions which use lmb under CONFIG_LMB so that they are
compiled and used only when LMB is enabled.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/75e52def75f573e554a6b177a78504c128cb0c4a.1657183534.git.michal.simek@amd.com
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Signed-off-by: Wolfgang Denk <[email protected]>
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Switch arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() to
arch_lmb_reserve_generic().
Reviewed-by: Tom Rini <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Cc: Alexey Brodkin <[email protected]>
Cc: Angelo Dureghello <[email protected]>
Cc: Daniel Schwierzeck <[email protected]>
Cc: Eugeniy Paltsev <[email protected]>
Cc: Hai Pham <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Simon Goldschmidt <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Wolfgang Denk <[email protected]>
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These board has not been converted to CONFIG_DM_PCI by the deadline.
Remove them. As this is the last of the mcf547x_8x family of boards,
remove that support as well.
Cc: TsiChung Liew <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Having WATCHDOG_RESET() called automatically from the timer interrupt
runs counter to the idea of a watchdog device - if the board runs into
an infinite loops with interrupts still enabled, the watchdog will
never fire.
When using CONFIG_(SPL_)WDT, the watchdog_reset function is a lot more
complicated than just poking a few SOC-specific registers - it
involves accessing all kinds of global data, and if the interrupt
happens at the wrong time (say, in the middle of an WATCHDOG_RESET()
call from ordinary code), that can end up corrupting said global data.
Allow the board to opt out of calling WATCHDOG_RESET() from the timer
interrupt handler by setting CONFIG_SYS_WATCHDOG_FREQ to 0 - as that
setting is currently nonsensical (it would be compile-time
divide-by-zero), it cannot affect any existing boards.
Add documentation for both the existing and extended meaning of
CONFIG_SYS_WATCHDOG_FREQ.
Signed-off-by: Rasmus Villemoes <[email protected]>
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- Merge the patch to take <asm/global_data.h> out of <common.h>
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At present we have bdinfo_print_num() to print unsigned long numbers.
We also have print_phys_addr() which accept numbers that might be
64-bit on a 32-bit platform.
Rename these 2 functions to be clearer:
bdinfo_print_num() => bdinfo_print_num_l()
print_phys_addr() => bdinfo_print_num_ll()
While we are here, make bdinfo_print_num_ll() public so that it can
be used outside cmd/bdinfo.c in the future.
Signed-off-by: Bin Meng <[email protected]>
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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 <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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In order to remove the arch-specific ifdefs around initr_trap, introduce
arch_initr_trap weak initcall. Implementations for ppc/m68k/mips have
been moved to arch/<arch>/lib/traps.c
Default implementation is a nop stub.
Signed-off-by: Ovidiu Panait <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
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Factor out m68k-specific bdinfo setup to arch_setup_bdinfo in
arch/m68k/lib/bdinfo.c. Also, use if(IS_ENABLED()) instead of #ifdef where
possible.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Ovidiu Panait <[email protected]>
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bi_sramstart and bi_sramsize are generic members of the bd_info structure,
so move the m68k/powerpc-specific prints to generic code. Also, print them
only if SRAM support is enabled via CONFIG_SYS_HAS_SRAM.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Ovidiu Panait <[email protected]>
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The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:
It's a **mistake** to use typedef for structures and pointers.
Besides, using typedef for structures is annoying when you try to make
headers self-contained.
Let's say you have the following function declaration in a header:
void foo(bd_t *bd);
This is not self-contained since bd_t is not defined.
To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>
#include <asm/u-boot.h>
void foo(bd_t *bd);
Then, the include direcective pulls in more bloat needlessly.
If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:
struct bd_info;
void foo(struct bd_info *bd);
Right, typedef'ing bd_t is a mistake.
I used coccinelle to generate this commit.
The semantic patch that makes this change is as follows:
<smpl>
@@
typedef bd_t;
@@
-bd_t
+struct bd_info
</smpl>
Signed-off-by: Masahiro Yamada <[email protected]>
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We don't have an easy way to share these three lines of code with two
architectures. We also want to make it clear that this code is actually
arch-specific.
So just duplicate it in each arch-specific file.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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We don't really want to have m68k-specific code in a generic file. Create
a new arch-specific function to hold it, and move it into that.
Make the function weak so that any arch can implement it.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Angelo Dureghello <[email protected]>
Tested-by: Angelo Dureghello <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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