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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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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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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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Add ashrdi3.c to private libgcc.
Signed-off-by: Angelo Dureghello <[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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Add architecture-related code for dm fec support.
Signed-off-by: Angelo Durgehello <[email protected]>
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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 <[email protected]>
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Add private libgcc
Signed-off-by: Angelo Dureghello <[email protected]>
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All the M68000 boards have switched to Generic Board.
This file is no longer necessary.
Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Huan Wang <[email protected]>
Cc: Angelo Dureghello <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add generic-board support for the m68k architecture.
Signed-off-by: Angelo Dureghello <[email protected]>
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Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Jason Jin <[email protected]>
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Signed-off-by: Wolfgang Denk <[email protected]>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <[email protected]>
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MAKEALL is fine for ppc4xx and mpc85xx.
Run checks were done on our controlcenterd hardware.
Signed-off-by: Dirk Eibach <[email protected]>
Signed-off-by: Andy Fleming <[email protected]>
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Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <[email protected]>
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Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <[email protected]>
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