Use map_physmem() and unmap_physmem() to convert from physical to
virtual addresses. This gives the arch a chance to provide an uncached
mapping for flash accesses.
map_physmem() returns a virtual address which can be used to access a
given physical address without involving the cache. unmap_physmem()
should be called when the virtual address returned by map_physmem() is
no longer needed.
This patch adds a stub implementation which simply returns the
physical address cast to a uchar * for all architectures except AVR32,
which converts the physical address to an uncached virtual mapping.
unmap_physmem() is a no-op on all architectures, but if any
architecture needs to do such mappings through the TLB, this is the
hook where those TLB entries can be invalidated.
Introduce flash_read{8,16,32,64) and flash_write{8,16,32,64} and use
them to access the flash memory. This makes it clearer when the flash
is actually being accessed; merely dereferencing a volatile pointer
looks just like any other kind of access.
Implement __raw_{read,write}[bwl] on all architectures
This adds implementations of __raw_read[bwl] and __raw_write[bwl] to
m68k, ppc, nios and nios2. The m68k and ppc implementations were taken
from Linux.
cfi_flash: Reorder functions and eliminate extra prototypes
Reorder the functions in cfi_flash.c so that each function only uses
functions that have been defined before it. This allows the static
prototype declarations near the top to be eliminated and might allow
gcc to do a better job inlining functions.
This patch tries to keep all lines in the cfi_flash driver below 80
columns. There are a few lines left which don't fit this requirement
because I couldn't find any trivial way to break them (i.e. it would
take some restructuring, which I intend to do in a later patch.)
CFI: support JEDEC flash roms in CFI-flash framework
The following patch adds support for non-CFI flash ROMS, by hooking into the
CFI flash code and using most of its code, as recently discussed here in the
thread "Mixing CFI and non-CFI flashs".
Signed-off-by: Michael Schwingen <michael@schwingen.org> Signed-off-by: Stefan Roese <sr@denx.de>
Kumar Gala [Wed, 21 Nov 2007 20:07:46 +0000 (14:07 -0600)]
Fix warnings from import of libfdt
cmd_fdt.c: In function fdt_print:
cmd_fdt.c:586: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:613: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:635: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:636: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Grant Likely [Wed, 21 Nov 2007 16:19:37 +0000 (09:19 -0700)]
[BUILD] Remove libraries when updating autoconf.mk
Fix library problems caused by conditional compilation. Using
autoconf.mk to decide which files to compile has caused a problem when
changing configuration from one board to another without clearing out
the library (*.a) files.
It used to be that the linker was always passed the same list of .o
files when building the .a files. However, that is not longer true
with conditional compilation. Now, a different board config will have
a different file list passed to the linker. The problem occurs when
a library has already been built and the board config is changed.
Since the linker will update instead of replace a preexisting library,
then if the file list changes to remove some object files the old
objects will still exist in the library.
The solution is to remove all old library files when autoconf.mk is
made.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Grant Likely [Mon, 24 Sep 2007 15:05:31 +0000 (09:05 -0600)]
[BUILD] Generate include/autoconf.mk from board config files
Use cpp and sed to postprocess config.h and import the defined values
into include/autoconf.mk. autoconf.mk is then included by config.mk to
give 'make' access to the board configuration.
Doing this enables conditional compilation at the Makefile level instead
of by wrapping every .c file with #ifdef/#endif wrappers.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[MIPS] board/gth2/lowlevel_init.S: Fix a build warning
lowlevel_init.S: Assembler messages:
lowlevel_init.S:413: Warning: Pretending global symbol used as branch target is local.
Looking at codes, the `memtest' and `clearmem' are intentional mixed
use of `global symbols' and `label' for debugging purpose. To make it
build, just disable global-symbols-use for now. As a result `memtest'
still remains as unused, but leave it be...
[MIPS] cpu/mips/config.mk: Fix GNU assembler minor version picker
Current trick to pick up GNU assembler minor version does not work with the
latest binutils (2007-03-01 or later) due to ${PKGVERSION} now default to
"(GNU Binutils) ".
au1x00_eth.c: In function 'au1x00_enet_initialize':
au1x00_eth.c:246: error: 'au1x00_miiphy_read' undeclared (first use in this function)
au1x00_eth.c:246: error: (Each undeclared identifier is reported only once
au1x00_eth.c:246: error: for each function it appears in.)
au1x00_eth.c:246: error: 'au1x00_miiphy_write' undeclared (first use in this function)
au1x00_eth.c: In function 'au1x00_miiphy_write':
au1x00_eth.c:298: warning: 'return' with no value, in function returning non-void
make[1]: *** [au1x00_eth.o] Error 1
Grant Likely [Wed, 14 Nov 2007 05:18:33 +0000 (22:18 -0700)]
powerpc: Backout relocation changes.
Ugh. I *hate* to back this change out, but these compiler flags don't
work for relocation on all versions of GCC. I've not been able to
reproduce the environment in my setup (and hence, not been able to
find a combination that *does* work), so I've got no choice but to go
back to the old gcc flags and linker script.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Although mips_io_port_base is currently a part of IDE command, it is quite
fundamental for MIPS I/O port access such as in[bwl] and out[bwl]. So move
it to MIPS general part, and introduce `set_io_port_base()' from Linux.
This patch is triggered by multiple definition of `mips_io_port_base' build
error on gth2 (and tb0229 also needs this fix.)
board/gth2/libgth2.a(gth2.o): In function `log_serial_char':
/home/skuribay/devel/u-boot.git/board/gth2/gth2.c:47: multiple definition of `mips_io_port_base'
common/libcommon.a(cmd_ide.o):/home/skuribay/devel/u-boot.git/common/cmd_ide.c:712: first defined here
make: *** [u-boot] Error 1
Wolfgang Denk [Sat, 17 Nov 2007 00:30:40 +0000 (01:30 +0100)]
Fix a bug in the slave serial programming mode for the Xilinx
Spartan2/3 FPGAs. The old code used "< 0" on a "char" type to test if
the most significant bit was set, which did not work on any
architecture where "char" defaulted to be an unsigned type.
Based on a patch by Angelos Manousaridis <amanous@inaccessnetworks.com>
Grant Likely [Mon, 24 Sep 2007 15:05:30 +0000 (09:05 -0600)]
Build: split COBJS value into multiple lines
This change is in preparation for condtitionial compile support in the
build system. By spliting them all into seperate lines now, subsequent
patches that change 'COBJS-y += ' into 'COBJS-$(CONFIG_<blah>) += ' will
be less invasive and easier to review
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
projects / u-boot / log