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Kuan-Wei Chiu <visitorckw@gmail.com> says:
Add support for the QEMU 'virt' machine on the m68k architecture. The
QEMU virt machine models a generic system utilizing Goldfish virtual
peripherals and is capable of emulating various classic 68k CPUs.
Currently, U-Boot's m68k architecture support focuses on ColdFire
variants. This series expands support to include the classic M680x0
architecture, implementing the necessary exception vectors, startup
code, and a bootinfo parser compatible with the QEMU interface.
Drivers for Goldfish peripherals (TTY, Timer, RTC) and the QEMU
Virtual System Controller (sysreset) are also added to enable serial
console, timekeeping, and system reset functionality.
The implementation has been verified on QEMU targeting the M68040 CPU,
confirming successful hardware initialization and boot to the U-Boot
command shell. Additionally, the CI configuration was verified locally
using gitlab-ci-local "qemu_m68k_virt test.py", resulting in
PASS qemu_m68k_virt test.py.
Link: https://lore.kernel.org/r/20260107201838.3448806-1-visitorckw@gmail.com
[trini: Re-sort MAINTAINERS entries]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Add support for the QEMU 'virt' machine on the m68k architecture. This
board emulates a generic machine based on the Motorola 68040 CPU
equipped with Goldfish virtual peripherals.
Introduce the necessary board configuration and initialization
infrastructure. The implementation includes logic to parse the QEMU
bootinfo interface, enabling dynamic detection of system RAM size to
adapt to the virtual machine's configuration.
Enable the Goldfish TTY driver for serial console output. Additionally,
enable Goldfish RTC and timer drivers to support real-time clock
functionality and nanosecond-resolution delays. Include comprehensive
documentation covering build instructions and usage examples.
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Tested-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Simon Glass <simon.glass@canonical.com>
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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 <visitorckw@gmail.com>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
Reviewed-by: Simon Glass <simon.glass@canonical.com>
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This patch renames the board directory from board/freescale to
board/nxp because NXP now provides Board Support Packages (BSPs) and
tools for the former Freescale i.MX and other i.MX products.
All relevant references have been updated accordingly. This change does
not affect functionality.
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
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With commit 0535e46d55d7 ("scripts/dtc: Update to upstream version
v1.7.2-35-g52f07dcca47c") it is now a fatal error to U-Boot if our
device tree is not 8-byte aligned. In commit 85f586035d75 ("ARM: OMAP2+:
Pad SPL binary to 8-byte alignment before DTB") Beleswar Padhi explains
that we must have ALIGN(x) statements inside of a section to ensure that
padding is included and not simply that the linker address counter is
incremented. To that end, this patch:
- Remove part of what Marek Vasut did in commit 9ed99e2eeadb ("m68k:
Assure end of U-Boot is at 8-byte aligned offset") as we now better
understand what can trigger failure and check for it.
- Rewrite the '.dynsym' section to follow modern practices, and include
the 8-byte alignment at the end of the section.
- Ensure that we do have alignment by adding an ASSERT so that when not
aligned we fail to link (and explain why).
Signed-off-by: Tom Rini <trini@konsulko.com>
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Make sure the end of U-Boot is at 8-byte aligned offset, not 4-byte
aligned offset. This allows safely appending DT at the end of U-Boot
with the guarantee that the DT will be at 8-byte aligned offset. This
8-byte alignment is now checked by newer libfdt 1.7.2 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
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This board is currently unmaintained. Remove it.
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
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This will allow arch(s) that use device tree blobs to pad the end of the
device tree so they can be modified by board files at run time. This will
help prevent errors such as FDT_ERR_NOSPACE from occurring.
Signed-off-by: Eric Schikschneit <eric.schikschneit@novatechautomation.com>
[trini: Change default order so that X86 && EFI_APP works correctly]
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The way DECLARE_GLOBAL_DATA_PTR is used, the stuff under #if 0 can
never compile as you cannot have a non-constant initializer at global
scope (and one would get linker errors as well because the 'gd' symbol
would be defined in multiple TUs).
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
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Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
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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 <neil.armstrong@linaro.org> # on AML-S905X-CC
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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Modifying a generic header like watchdog.h, removing not directly used
asm/ptrace.h header relies on whoever includes it to already have
included something that defines the type ulong.
Make the asm/ptrace.h header self-contained by including the proper
header.
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Roese <sr@denx.de>
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The dtbs: target is almost identical in all architecture Makefiles.
All architecture Makefiles include scripts/Makefile.dts . Deduplicate
the dtbs: target into scripts/Makefile.dts . No functional change.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org> #qcom, OF_UPSTREAM
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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 <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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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 <sughosh.ganu@linaro.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
[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 <sjg@chromium.org>
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Drop all duplicate newlines. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
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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 <ilias.apalodimas@linaro.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
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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 <angelo@kernel-space.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
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There are no calls of "watchdog_reset()" anymore anywhere in the tree
since the WATCHDOG_RESET macro got removed in 942d07df0e79 ("watchdog:
Remove WATCHDOG_RESET macro").
The only places the identifiers watchdog_disable and watchdog_init are
called are in arch/arm/mach-omap2/, so those can obviously not refer
to these instances.
Hence these functions are not actually used at all and can be
removed. As a bonus, this also removes two leftover references to
WATCHDOG_RESET.
Cc: Huan Wang <alison.wang@nxp.com>
Cc: Angelo Dureghello <angelo@kernel-space.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
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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 <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
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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 <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
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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 <trini@konsulko.com>
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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/50dfa3d6-a1ca-4492-a3fc-8d8c56b40b43@kwiboo.se/
Signed-off-by: Tom Rini <trini@konsulko.com>
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Simon Glass <sjg@chromium.org> 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 <sjg@chromium.org>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
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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
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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 <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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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 <sjg@chromium.org>
Acked-by: Angelo Dureghello <angelo@kernel-spcece.org>
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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 <angelo@kernel-space.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
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There are no platforms which enable this feature, so remove it.
Signed-off-by: Tom Rini <trini@konsulko.com>
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Similar change was done by commit b4c2c151b14b ("Kconfig: Remove all
default n/no options") and again sync is required.
default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> # tegra
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Angelo Dureghello <angelo@kernel-space.org>
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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 <trini@konsulko.com>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
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Implement relocation for M68K. Perform all the updates in start.S
relocate_code in assemby, since it is a simple matter of traversing
the dynsym table and adding relocation offset - MONITOR_BASE to all
the items in that table. The necessity to deal with MONITOR_BASE is
a specific of M68K, where the ELF entry point is at offset 0x400,
which is the MONITOR_BASE, while TEXT_BASE is at offset 0 .
This also removes the one last user of NEEDS_MANUAL_RELOC, so that
could be finally cleaned up .
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
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Add watchdog node for the implemented mcf_wdt driver.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
---
Changes for v2:
- remove unnecessary big-endian property
Changes for v3:
- none
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Move watchdog functions inside a separate watchdog driver.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
---
Changes for v2:
- none
Changes for v3:
- none
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M68k essentially duplicates the content of asm-generic/unaligned.h, with
an exception for non-Coldfire configurations. Coldfire configurations
are apparently able to do unaligned accesses. But in an attempt to clean
up and handle unaligned accesses in the same way we ignore that and use
the common asm-generic/unaligned.h directly instead.
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
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The QEMU emulation of m68k does not support RAMBAR accesses,
add Kconfig option which inhibits those accesses, so that
U-Boot can be started in m68k QEMU for CI testing purpopses
until QEMU emulation improves.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
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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 <marek.vasut+renesas@mailbox.org>
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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 <marek.vasut+renesas@mailbox.org>
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Add all the i2c nodes for each family, and add specific i2c
overwrites in the related board-specific dts.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
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This driver is actually used for powerpc and m68k/ColdFire.
On ColdFire SoC's, interrupt flag get not set if IIEN flag (mbcr bit6,
interrupt enabled) is not set appropriately before each transfert.
As a result, the transfert hangs forever waiting for IIEN.
This patch set IIEN before each transfert, while considering this fix
as not harming powerpc arch.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
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Fix CONFIG_SYS_FSL_I2C to correct name CONFIG_SYS_I2C_FSL.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
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Move CONFIG_SYS_I2C_X to CFG_ namespace.
This is a preliminary step to move to dm i2c.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
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Add ashrdi3.c to private libgcc.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
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This is not a Kconfig option so changing to _CFG.
Signed-off-by: Angelo Durgehello <angelo@kernel-space.org>
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Fix error:
Invalid chip select 0:1 (err=-19)
update spi nor "compatible" property with "jedec,spi-nor"
to have spi nor properly bound as a child device.
Signed-off-by: Angelo Durgehello <angelo@kernel-space.org>
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The FSL eSDHC controller supports two reference clocks. They are
platform clock and periperhal clock. The global variable sdhc_clk
has already been used for platform clock.
ColdFire also uses eSHDC controller, as in arm and powerpc,
so adding sdhc_per_clk to arch_global_data.
Signed-off-by: Angelo Durgehello <angelo@kernel-space.org>
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Increasing of binary size requires longword-based jumps.
Signed-off-by: Angelo Durgehello <angelo.dureghello@timesys.com>
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