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Use this new function in places where it simplifies the code.
Signed-off-by: Simon Glass <[email protected]>
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Set up the debug UART early if enabled, so that it is ready to use.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Chin Liang See <[email protected]>
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board_init_f_mem() alters the C runtime environment's
stack it is actually already using. This is not a valid
behaviour within a C runtime environment.
Split board_init_f_mem into C functions which do not alter
their own stack and always behave properly with respect to
their C runtime environment.
Signed-off-by: Albert ARIBAUD <[email protected]>
Acked-by: Thomas Chou <[email protected]>
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Display altera sysid at startup, which was once removed during
the move.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Change to ns16550 uart for 10m50 devboard based on a new
Altera release.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Zap ioremap(), as it is replaced by map_physmem(,,MAP_NOCACHE).
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Change ioremap() to map_physmem(), as it is more used in u-boot.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Add 10m50 devboard support. It is based on the Golden Hardware
Reference Design (GHRD), available at,
http://rocketboards.org/foswiki/view/Documentation/
AlteraMAX1010M50RevCDevelopmentKitLinuxSetup
Though we supported only one nios2-generic board in the past. Now,
with the removal of the nios2-generic board dir, adding new nios2
boards to u-boot is easier than before. It should be helpful to
add those boards supported in Linux mainline. There are only two
such nios2 boards, the 3c120 devboard and 10m50 devboard. The
nios2-generic is actually 3c120, and should restore the name. The
10m50 is this one.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Add memcpy_fromio() and memcpy_toio().
Signed-off-by: Thomas Chou <[email protected]>
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After consulting with some of the SPDX team, the conclusion is that
Makefiles are worth adding SPDX-License-Identifier tags too, and most of
ours have one. This adds tags to ones that lack them and converts a few
that had full (or in one case, very partial) license blobs into the
equivalent tag.
Cc: Kate Stewart <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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As the generic board runs in cached mode, it should not use
"stwio" which bypass the cache.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Chin Liang See <[email protected]>
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Remove CONFIG_SYS_INIT_SP macro, as the initial stack is set to
below the u-boot code.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
Reviewed-by: Chin Liang See <[email protected]>
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As virt_to_phys() is used a lot in DMA transfer, change it
to use physaddr_mask in global data. This will save an "if"
statement and get a little faster.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Remove the useless parenthesis in asm/io.h as suggested
by Marek.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Fix the map_physmem() to do real cache mapping.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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The generic bitops headers are required when calling logarithmic
functions, such as ilog2().
Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Thomas Chou <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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As the virtual address and physical address mapping of nios2 with
MMU are different. Add a check of MMU, and fix the mapping.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Ley Foon Tan <[email protected]>
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As we use device tree to control u-boot now, the generic
board can be removed.
Signed-off-by: Thomas Chou <[email protected]>
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Convert dma_alloc_coherent to use memalign.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Convert copy_exception_trampoline() to use dm cpu data.
Signed-off-by: Thomas Chou <[email protected]>
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Convert cache flush to use dm cpu data.
The original cache flush functions are written in assembly
and use CONFIG_SYS_{I,D}CACHE_SIZE... macros. It is difficult
to convert to use cache configuration in dm cpu data which is
extracted from device tree.
The cacheflush.c of Linux nios2 arch uses cpuinfo structure,
which is very close to our dm cpu data. So we copy and modify
it to arch/nios2/lib/cache.c to replace the old cache.S.
Signed-off-by: Thomas Chou <[email protected]>
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Set default icache and dcache configuration for start.S.
We want to remove the CONFIG_SYS_{I,D}CACHE_SIZE...
configuration macros. As we are just barely starting from
reset, there is no luxury of device tree.
We will set some maximum cache configuration so that it will
work for most configurations. This is used only in this
start.S. The speed penalty is only once here.
After start up, during board initialization, cpu information
will be extracted from device tree. Then cache flush operations
will have correct cache configurations.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Clean up comments style in start.S.
Signed-off-by: Thomas Chou <[email protected]>
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Convert ioremap() to use io_region_base in dm cpu global data.
Also remove three unused io functions, which have style issue
and are replaced by macros already.
Signed-off-by: Thomas Chou <[email protected]>
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Convert do_reset to use dm cpu data.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Remove asm/psr.h, which is not used.
Also clean up asm/sections.h and unaligned.h.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Convert altera sysid to driver model with misc uclass.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Chin Liang See <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Convert altera timer to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Chin Liang See <[email protected]>
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Convert nios2 cpu to driver model. The cpu parameters are
extracted from device tree and saved to global data structure.
We will use them to replace the custom_fpga.h .
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Convert altera_pio to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Chin Liang See <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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These macros can be used to clear and set multiple bits
in a register using a single call.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
Acked-by: Chin Liang See <[email protected]>
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Convert altera_jtag_uart to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add ioremap() to map physical address to uncached virtual
address. We need this to convert the reg address from the
device tree.
The order of headers inclusion in interrupts.c is changed
because common.h will include board header that contains
IO_REGION_BASE.
In the future, the IO_REGION_BASE should be decided from
the device tree.
tree
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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We will need CONFIG_SYS_MALLOC_F_LEN to use serial uclass.
So we shall undefine CONFIG_SYS_GENERIC_GLOBAL_DATA, and
call board_init_f_mem() to allocates early malloc() memory
with size of CONFIG_SYS_MALLOC_F_LEN in board_f.c.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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There is a weak version_string[] at common/cmd_version.c .
Remove the one in start.S.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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The dly_clks() in start.S is no use after switching to
generic timer. Remove it.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Move the timer code from interrupts.c into timer.c . Eliminate the
installation of timer interrupt handler, which is no longer used.
Signed-off-by: Marek Vasut <[email protected]>
Signed-off-by: Thomas Chou <[email protected]>
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Zap almost all of the ad-hoc timer code from interrupts.c and
use the code in lib/time.c instead.
Signed-off-by: Marek Vasut <[email protected]>
Signed-off-by: Thomas Chou <[email protected]>
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This patch adds device tree control of U-Boot to nios2 boards.
The example dts is taken from Linux kernel.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Since commit 44c6e6591cb451ae606f8bde71dd5fb7b4002544
"rename _end to __bss_end__" , the _end was removed.
But we need it now for separated device tree control,
ie, CONFIG_OF_SEPARATE .
The _end is used by fdtdec_setup() to find the blob.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Since we don't use gp for small data with option "-G0",
we use gp as global data pointer. The _gp location is
not needed.
The ALIGN(16) was for gp only. It is removed, so that we
can get correct address of dtb in u-boot-dtb.bin image.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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As we will use u-boot-dtb.bin, the code relocation range
should be adjusted to accommodate the additional dtb.
It might be overkilled to look into dtb header to find the
dtb size, so we will simply use CONFIG_SYS_MONITOR_LEN.
Signed-off-by: Thomas Chou <[email protected]>
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As dtb in u-boot-dtb.bin overlapped the BSS section,
we should delay the clearing of BSS until dtb is relocated
in board_init_f().
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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By making the board selections optional, every defconfig will include
the board selection when running savedefconfig so if a new board is
added to the top of the list of choices the former top's defconfig will
still be correct.
Signed-off-by: Joe Hershberger <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Cc: Tom Rini <[email protected]>
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This function should not return a value.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Thomas Chou <[email protected]>
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We have done with the generic board conversion for all the boards
of ARC, Blackfin, M68000, MicroBlaze, MIPS, NIOS2, Sandbox, X86.
Let's select SYS_GENERIC_BOARD for those architectures, so we can
tell which architecture has finished the conversion at a glance.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Alexey Brodkin <[email protected]>
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Move the option to Kconfig renaming it to CONFIG_HAVE_GENERIC_BOARD.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Alexey Brodkin <[email protected]>
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Introduce a Makefile under arch/$ARCH/ and include it in the
top Makefile (similar to Linux kernel). This allows further
refactoringi like moving architecture-specific code out of global
makefiles, deprecating config variables (CPU, CPUDIR, SOC) or
deprecating arch/$ARCH/config.mk.
In contrary to Linux kernel, U-Boot defines the ARCH variable by
Kconfig, thus the arch Makefile can only included conditionally
after the top config.mk.
Signed-off-by: Daniel Schwierzeck <[email protected]>
Acked-by: Masahiro Yamada <[email protected]>
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This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.
Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.
Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Anatolij Gustschin <[email protected]>
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