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Add support for U-BOOT SPL. NOR and RAM mode are supported.
There are 3 images in NOR flash. u-boot.img, dtb and kernel.
Signed-off-by: Michal Simek <[email protected]>
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Just list one more exception.
Signed-off-by: Michal Simek <[email protected]>
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Signed-off-by: Masahiro Yamada <[email protected]>
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Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Michal Simek <[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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Refactor linker-generated array code so that symbols
which were previously linker-generated are now compiler-
generated. This causes relocation records of type
R_ARM_ABS32 to become R_ARM_RELATIVE, which makes
code which uses LGA able to run before relocation as
well as after.
Note: this affects more than ARM targets, as linker-
lists span possibly all target architectures, notably
PowerPC.
Conflicts:
arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
board/ait/cam_enc_4xx/u-boot-spl.lds
board/davinci/da8xxevm/u-boot-spl-da850evm.lds
board/davinci/da8xxevm/u-boot-spl-hawk.lds
board/vpac270/u-boot-spl.lds
Signed-off-by: Albert ARIBAUD <[email protected]>
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Microblaze platform can use CONFIG_OF_EMBED option
but also it is necessary to support boards
which don't want to use this option.
U-Boot doesn't compile dts/libdts.o for #undef CONFIG_OF_EMBED
case that's why it should be guarded by ifdef.
Signed-off-by: Michal Simek <[email protected]>
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Flushing caches is necessary because of soft reset
which doesn't clear caches.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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The command declaration now uses the new LG-array method to generate
list of commands. Thus the __u_boot_cmd section is now superseded and
redundant and therefore can be removed. Also, remove externed symbols
associated with this section from include/command.h .
Signed-off-by: Marek Vasut <[email protected]>
Cc: Joe Hershberger <[email protected]>
Cc: Mike Frysinger <[email protected]>
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Add section for the linker-generated lists into all possible linker
files, so that everyone can easily use these lists. This is mostly
a mechanical adjustment.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Joe Hershberger <[email protected]>
Cc: Mike Frysinger <[email protected]>
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Move board specific function to board_init function in board/ folder
Remove externs from generic board.c
Use board_init_f function in board.c file.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Stephan Linz <[email protected]>
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Fix CONFIG_SYS_HZ usage in board config.
Do not use hardcoded value. Use CONFIG_SYS_HZ instead.
Separate static configuration to single block.
Signed-off-by: Michal Simek <[email protected]>
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Just coding style cleanup.
Remove unneeded externs.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Stephan Linz <[email protected]>
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Return value to find out if un/registration was succesful.
Signed-off-by: Michal Simek <[email protected]>
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This is minimum code required to be able to use device-tree
for u-boot initialization.
Currently only for device driver initialization.
Linker script change ensures DTB to be aligned
for both options CONFIG_OF_EMBED and CONFIG_OF_SEPARATE.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Stephan Linz <[email protected]>
CC: Simon Glass <[email protected]>
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Clear and prepare for device-tree driven configuration.
Remove CONFIG_SYS_INTC_0 definition
Use dynamic allocation instead of static.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Move __udelay to the timer code because of unification.
And clean coding style because of checkpatch.pl.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Unification for all microblaze boards.
Signed-off-by: Michal Simek <[email protected]>
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The interrupt acknowledge action have to run after the
registered interrupt handler. So we have a chance to
bear out the corresponding interrupt request in the
corresponding controller hardware.
With this reordering, we optain a proper interrupt
handling for level triggered interrupt sources -- for
example the new axi_timer v1.02.a introduced in ISE 13.2.
Signed-off-by: Stephan Linz <[email protected]>
Acked-by: Michal Simek <[email protected]>
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after commit "common: add possibility for readline_into_buffer
timeout" (sha1:9c34831) was applied. The Microblaze generic build
fails with error below:
common/libcommon.o: In function `cread_line':
/devel/u-boot/common/main.c:717: undefined reference to `get_ticks'
/devel/u-boot/common/main.c:717: undefined reference to `get_tbclk'
/devel/u-boot/common/main.c:720: undefined reference to `get_ticks'
Signed-off-by: Stephan Linz <[email protected]>
Acked-by: Michal Simek <[email protected]>
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- Remove code copying
- Reset address is setup from first stage bootloader
- Support reset vector setup on little endian
Signed-off-by: Michal Simek <[email protected]>
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Use one memory space to detect little/big endian platforms.
The first unused address(0x28) is used instead 0x0 address (reset vectors).
Detection rewrited reset vector setup from first stage bootloader.
Workflow:
1. Store 0x28 to r7
2. Do little/big endian test
3. Restore r7 to 0x28
Signed-off-by: Michal Simek <[email protected]>
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For example: Setup reset vectors if reset address is setup.
Setup user exception vector if user exception is enabled
Signed-off-by: Michal Simek <[email protected]>
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Forget to remove debug code.
Signed-off-by: Michal Simek <[email protected]>
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Fix ancient code which worked with MSR in a bad way.
Use rtid instruction which enable IRQs and jump.
Signed-off-by: Michal Simek <[email protected]>
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Microblaze implement enable/disable interrupts through MSR
that's why disable_interrupts function should return 1 when interrupt
was enabled. Return 0 when interrupt was disabled.
Signed-off-by: John Linn <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Wolfgang Denk <[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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Signed-off-by: Wolfgang Denk <[email protected]>
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CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough. This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool. In the result, all definitions of this value can be
deleted from the board config files. We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.
No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.
Signed-off-by: Wolfgang Denk <[email protected]>
Acked-by: Kumar Gala <[email protected]>
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The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.
Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.
Signed-off-by: Wolfgang Denk <[email protected]>
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Microblaze little-endian toolchain should export
__MICROBLAZEEL__.
Signed-off-by: Michal Simek <[email protected]>
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The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands. Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".
This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:
int main (int argc, char **argv)
{
while (--argc > 0 && **++argv == '-') {
/* ====> */ while (*++*argv) {
switch (**argv) {
case 'd':
debug++;
break;
...
default:
usage ();
}
}
}
...
}
The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell. With the modification, the compiler will prevent this with
an
error: increment of read-only location '*argv'
N.B.: The code above can be trivially rewritten like this:
while (--argc > 0 && **++argv == '-') {
char *arg = *argv;
while (*++arg) {
switch (*arg) {
...
Signed-off-by: Wolfgang Denk <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Merge cpu and lib cache code.
Flush cache before disabling.
Signed-off-by: Michal Simek <[email protected]>
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It is better to read ivr and react on it than do long parsing from
two regs. Interrupt controller returs actual irq number.
Signed-off-by: Michal Simek <[email protected]>
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Move FSL out of interrupt controller.
Signed-off-by: Michal Simek <[email protected]>
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I would like to handle case where system doesn't contain
intc that's why I need timer initialization out of intc code.
Signed-off-by: Michal Simek <[email protected]>
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It is ancient code. There is possible to save several instructions
just if we use offset instead of addik
Signed-off-by: Michal Simek <[email protected]>
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Signed-off-by: Peter Tyser <[email protected]>
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