As it seems the "old" ECC initialization routine by using dflush() didn't
write all lines in the dcache back to memory on lwmon5. This could lead
to ECC error upon Linux booting. This patch changes the program_ecc()
routine to now use clean_dcache_range() instead of dflush().
clean_dcache_range() uses dcbst which is exactly what we want in this
case.
Since dflush() is known is cause problems, this routine will be
removed completely and replaced by clean_dcache_range() with an
additional patch.
Signed-off-by: Stefan Roese <sr@denx.de>
Limit the rate of h/w watch-dog triggering on the LWMON5 board by
the CONFIG_WD_MAX_RATE value.
Note that an earlier version of this patch which used microseconds
instead of ticks dis not work. The problem was that we used
usec2ticks() to convert microseconds into ticks. usec2ticks() uses
get_tbclk(), which in turn calls get_sys_info(). It turns out that
this function does a lot of prolonged operations (like divisions)
which take too much time so we do not trigger the watchdog in time,
and it resets the system.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
The cross compiler is responsible for providing the correct libraries
and the logic to find the linking libraries.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Since all ECC related problems seem to be resolved on LWMON5, this patch
now enables ECC support.
We have to write the ECC bytes by zeroing and flushing in smaller
steps, since the whole 256MByte takes too long for the external
watchdog.
Signed-off-by: Stefan Roese <sr@denx.de>
Backlight was switched on even when temperature was too low.
Signed-off-by: Dmitry Rakhchev <rda@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Backlight was switcehd on even when temperature was too low.
Signed-off-by: Dmitry Rakhchev <rda@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]
For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.
The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This patch configures the LWMON5 port to use d-cache as init-ram and
the unused GPT0_COMP6 as POST WORD storage.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch also modifies the functionality of the code so that the data-eye
search is now done with with the cache disabled.
Signed-off-by: Larry Johnson <lrj@acm.org>
This patch adds the Denali SDRAM controller definitions to "ppc440.h".
It also fixes two typos in the definitions, so the board-specific
"sdram.h" files containing these definitions are also fixed to avoid
compiler warnings.
Signed-off-by: Larry Johnson <lrj@acm.org>
This patch moves some common 4xx macros and the PPC405_SYS_INFO/
PPC440_SYS_INFO structure into the common ppc4xx.h header.
Lot's of other macros are good candidates to be consolidated this way
in the future.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds support for the 2nd EEPROM (AT24C128) on the lwmon5
board. Now the "eeprom" command can be used to read/write from/to this
device. Additionally a new command was added "eepromwp" to en-/disable
the write-protect of this 2nd EEPROM.
The 1st EEPROM is not affected by this write-protect command.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds support for the matrix keyboard on the lwmon5 board.
Since the implementation in the dsPCI is kind of compatible with the
"old" lwmon board, most of the code is copied from the lwmon
board directory.
Signed-off-by: Stefan Roese <sr@denx.de>
platforms wishing to display RAM diagnostics in addition to size,
can do so, on one line, in their own board_add_ram_info()
implementation.
this consequently eliminates CONFIG_ADD_RAM_INFO.
Thanks to Stefan for the hint.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
- Clear ECC status regs after ECC POST test
- Set dcbz for ECC generation with caches enabled as default
- Code cleanup
Signed-off-by: Stefan Roese <sr@denx.de>
Change Lime SDRAM initialization to now support 100MHz and
133MHz (if enabled). Also the framebuffer is initialized to
display a blue rectangle with a white border.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds ECC Post test for the Lwmon5 board based
on PPC440EPx to U-Boot.
Signed-off-by: Pavel Kolesnikov <concord@emcraft.com>
Acked-by: Yuri Tikhonov <yur@emcraft.com>
Acked-by: Stefan Roese <sr@denx.de>
- Add optional ECC generation routine to preserve existing
RAM values. This is needed for the Linux log-buffer support
- Add optional DDR2 setup with CL=4
- GPIO50 not used anymore
- Lime register setup added
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes the CFG_PCI_PRE_INIT option completely, since
it's not needed anymore with the patch from Matthias Fuchs with
the "weak" pci_pre_init() implementation.
Signed-off-by: Stefan Roese <sr@denx.de>
Stefan Roese
Yuri Tikhonov
Jason Wessel
Yuri Tikhonov
Wolfgang Denk
Anatolij Gustschin
Larry Johnson
Kim Phillips
Pavel Kolesnikov