memory_display is a function which should generally be available.
Currently it depends on memory command support being compiled in,
so move the function to a separate file.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The memory commands all use open_and_lseek and mem_parse_options. Export
them to be able to split the memory commands into separate files.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently Kconfig dependencies are used to allow non-interactive builds.
This leads to problems in Kconfig getting the dependencies right.
This patch adds a barebox_main function pointer which is called at the
end of the startup process. This defaults to run_shell when a shell is
enabled.
With this the HAVE_NOSHELL Kconfig variable can be removed. Non interactive
builds can now be enabled for every board allowing to compile a binary
without further Kconfig dependencies. This also allows for more flexibility,
for example boards may decide to try non-interactive startup first and
call run_shell if that fails.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add PAGE_ALIGN_DOWN macro, which is like PAGE_ALIGN macro but
returns the lower page boundary of address.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
PAGE_ALIGN macro is needed to align addresses to page boundaries.
Move this macro to another PAGE_* defines.
Commands which uses remap_range function needs this macro.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Copy over the latest version from u-boot which handles bigger sizes now
and does arithmetic with shifts instead of divisions.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The Linux Kernel defines only one of __LITTLE_ENDIAN and
__BIG_ENDIAN. Endianess can then be tested with #ifdef __xx_ENDIAN. Userspace
always defined both __LITTLE_ENDIAN and __BIG_ENDIAN and byteorder can then
be tested with #if __BYTE_ORDER == __xx_ENDIAN.
As we tend to use a lot of Kernel code in barebox we switch to use the kernel
way of determing the byte order.
As this always causes a lot of confusion add a check to include/common.h to
make sure only one of __LITTLE_ENDIAN and __BIG_ENDIAN is defined.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This shrinks the resulting binary size by ~25%. Exceptions
are still handled in arm mode, so we have to explicitely
put .arm directives into the exception code. Thumb-2 mode
has been tested on i.MX51 Babbage board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
At least ARM allows us to dump the stack, but we currently
have no prototype for this. Add a dump_stack prototype and
provide a static inline function for architectures without
stack dump support. Also, call dump_stack() in panic() to
provide more information in the case of a panic.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We never had interrupt support in barebox and we have no plans to
add interrupt support. Even if we do I doubt the current fragments
of irq support are helpful, so remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We introduced several new functions to ease our life
on ppc, use themn on the pcm030:
- setup iomux and bus clocks in board code
- add sdram memory according to detected size
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In barebox we used 1MiB sections to map our SDRAM cachable. This
has the drawback that we have to map our sdram twice: cached for
normal sdram and uncached for DMA operations. As address space gets
sparse on newer systems we are sometines unable to find a suitably
big enough area for the dma coherent space.
This patch changes the MMU code to use second level page tables.
With it we can implement dma_alloc_coherent as normal malloc, we
just have to remap the allocated area uncached afterwards and map
it cached again after free().
This makes arm_create_section(), setup_dma_coherent() and mmu_enable()
noops.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
convert enable_interrupts() and disable_interrupts() to static inline
if no IRQ supoprt enable
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In a noninteractive environment barebox will be compiled without
command support. So move version_string to a seperate file which
is compiled unconditionally.
Also, display the banner when the simple console support is used.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
IOMEM helper macro is used for address casting which then
is used in read(bwl)/write(bwl) functions.
Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>