Add CONFIG_POST_UART to implement a board specific UART POST test.
This is done since lwmon5 needs to set POST_ALWAYS to run this
test on each reboot. And we don't want to change the default
behavious of this this.
Signed-off-by: Stefan Roese <sr@denx.de>
Now that warm booting is not supported, there isn't a need for the
BOOTFLAG_COLD and BOOTFLAG_WARM defines, so remove them.
Note that this change makes the board info bd_bootflags field useless.
It will always be set to 0, but we leave it around so that we don't
break the board info structure that some OSes are expecting to be passed
from U-Boot.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Clean up Makefile, and drop a lot of the config.mk files on the way.
We now also automatically pick all boards that are listed in
boards.cfg (and with all configurations), so we can drop the redundant
entries from MAKEALL to avoid building these twice.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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 <wd@denx.de>
This patch changes the PPC4xx POST UART driver to use the common
NS16550 functions for receiving and sending. Additionally the
local function for SoC divisor setup are removed. Instead the
functions from arch/powerpc/cpu/ppc4xx/4xx_uart.c are used. This
removes code duplication.
Also the common CONFIG_SYS_NS16550_COMx defines are now used
to describe the POST UART's.
And a compile breakage is fixed, introduced by a git merge of
the ppc4xx/next branch into master. Now "ppc4xx.h" is moved to
"asm/ppc4xx.h". Fixed as well with this patch.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch brings the lwmon5 board support up-to-date. Here a
summary of the changes:
lwmon5 board port related:
- GPIO's changed to control the LSB transmitter
- Reset USB PHY's upon power-up
- Enable CAN upon power-up
- USB init error workaround (errata CHIP_6)
- EBC: Enable burstmode and modify the timings for the GDC memory
- EBC: Speed up NOR flash timings
lwmon5 board POST related:
- Add FPGA memory test
- Add GDC memory test
- DSP POST reworked
- SYSMON POST: Fix handling of negative temperatures
- Add output for sysmon1 POST
- HW-watchdog min. time test reworked
Additionally some coding-style changes were done.
Signed-off-by: Sascha Laue <sascha.laue@liebherr.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes the PPC4xx UART driver. Instead the common NS16550
driver is used, since all PPC4xx SoC's use this peripheral device.
The file 4xx_uart.c now only implements the UART clock calculation
function which also sets the SoC internal UART divisors.
All PPC4xx board config headers are changed to use this common NS16550
driver now.
Tested on these boards:
acadia, canyonlands, katmai, kilauea, sequoia, zeus
Signed-off-by: Stefan Roese <sr@denx.de>
- Revives POST for blackfin arch;
- Removes redundant code:
arch/blackfin/lib/post.c
arch/powerpc/cpu/ppc4xx/commproc.c
arch/powerpc/cpu/mpc512x/common.c
- fixes up the post_word_{load|store} usage.
Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>
List of the maintainers of the affected by patch boards:
Cc: Stephan Linz <linz@li-pro.net>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Larry Johnson <lrj@acm.org>
Cc: Feng Kan <fkan@amcc.com>
This patch moves the PPC4xx specific I2C device driver into the I2C
drivers directory. All 4xx config headers are updated to include this
driver.
Signed-off-by: Stefan Roese <sr@denx.de>
In 16 bpp mode, the new IPEK01 board only requires swapping of D16 words
for D32 accesses due to the diffferent connecting to the GDC bus. This
patch introduces the configuration option VIDEO_FB_16BPP_WORD_SWAP,
which should be set for all board using the mb862xx in 16 bpp mode. For
the IPEK01, VIDEO_FB_16BPP_PIXEL_SWAP should not be set.
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
The new IPEK01 board can use the 32 bpp mode for the Lime graphics
controller. For this mode, video accelaration does not work. This patch
makes the accelaration configurable via CONFIG_VIDEO_MB862xx_ACCEL,
which is enabled for the lwmon5 and the socrates board for backward
compatibility.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
To avoid board-specific code accessing the mb862xx registers directly,
the public function mb862xx_probe() has been introduced. Furthermore,
the "Change of Clock Frequency" and "Set Memory I/F Mode" registers
are now defined by CONFIG_SYS_MB862xx_CCF and CONFIG_SYS_MB862xx__MMR,
respectively. The BSPs for the socrates and lwmon5 boards have been
adapted accordingly.
Signed-off-by: Wolfgang Grandegger <wg@denx.de>
According to the doc/feature-removal-schedule.txt, the "autoscr"
command will be replaced by the "source" command in approximately 6
months from now.
This patch prepares this change and starts a 6 month transition
period as follows:
- The new "source" command has been added, which implements exactly
the same functionlaity as the old "autoscr" command before
- The old "autoscr" command name is kept as an alias for compatibility
- Command sequences, script files atc. have been adapted to use the
new "source" command
- Related environment variables ("autoscript", "autoscript_uname")
have *not* been adapted yet; these will be renamed resp. removed in
a separate patch when the support for the "autoscr" command get's
finally dropped.
Signed-off-by: Wolfgang Denk <wd@denx.de>
All in-tree IBM/AMCC PPC4xx boards using the EMAC get this new CONFIG
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
U-Boot allows for configurable prompt strings using the
CONFIG_AUTOBOOT_PROMPT resp. CONFIG_MENUPROMPT definitions. So far,
the assumption was that any such user defined problts would contain
exactly one "%d" format specifier. But some boards did not.
To allow for flexible boot prompts without adding too complex code we
now allow to specify the whole list of printf() arguments in the user
definition. This is powerful, but requires a responsible user who
really understands what he is doing, as he needs to know for exanple
which variables are available in the respective context.
Signed-off-by: Wolfgang Denk <wd@denx.de>
LWMON5 DSPIC POST uses the watch-dog scratch register. So, make
the CFG_DSPIC_TEST_ADDR definition more readable.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Use the GPT0_MASKx registers as the temporary storage for watch-dog
timer POST test instead of GPT0_COMPx. The latter
(GPT0_COMP1..GPT0_COMP5) are used for the log-buffer header.
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
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>
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>
If CFG_MEM_TOP_HIDE is defined in the board config header, this specified
memory area will get subtracted from the top (end) of ram and won't get
"touched" at all by U-Boot. By fixing up gd->ram_size the Linux kernel
should gets passed the now "corrected" memory size and won't touch it
either. This should work for arch/ppc and arch/powerpc. Only Linux board
ports in arch/powerpc with bootwrapper support, which recalculate the
memory size from the SDRAM controller setup, will have to get fixed
in Linux additionally.
This patch enables this config option on some PPC440EPx boards as a workaround
for the CHIP 11 errata. Here the description from the AMCC documentation:
CHIP_11: End of memory range area restricted access.
Category: 3
Overview:
The 440EPx DDR controller does not acknowledge any
transaction which is determined to be crossing over the
end-of-memory-range boundary, even if the starting address is
within valid memory space. Any such transaction from any PLB4
master will result in a PLB time-out on PLB4 bus.
Impact:
In case of such misaligned bursts, PLB4 masters will not
retrieve any data at all, just the available data up to the
end of memory, especially the 440 CPU. For example, if a CPU
instruction required an operand located in memory within the
last 7 words of memory, the DCU master would burst read 8
words to update the data cache and cross over the
end-of-memory-range boundary. Such a DCU read would not be
answered by the DDR controller, resulting in a PLB4 time-out
and ultimately in a Machine Check interrupt. The data would
be inaccessible to the CPU.
Workaround:
Forbid any application to access the last 256 bytes of DDR
memory. For example, make your operating system believe that
the last 256 bytes of DDR memory are absent. AMCC has a patch
that does this, available for Linux.
This patch sets CFG_MEM_TOP_HIDE for the following 440EPx boards:
lwmon5, korat, sequoia
The other remaining 440EPx board were intentionally not included
since it is not clear to me, if they use the end of ram for some
other purpose. This is unclear, since these boards have CONFIG_PRAM
defined and even comments like this:
PMC440.h:
/* esd expects pram at end of physical memory.
* So no logbuffer at the moment.
*/
It is strongly recommended to not use the last 256 bytes on those
boards too. Patches from the board maintainers are welcome.
Signed-off-by: Stefan Roese <sr@denx.de>
To enable this, alternative, configuration the U-Boot board configuration
file for lwmon5 includes the definitions of alternative addresses for header
(CONFIG_ALT_LH_ADDR) and buffer (CONFIG_ALT_LB_ADDR).
The Linux shall be configured with the CONFIG_ALT_LB_LOCATION option set,
and has the BOARD_ALT_LH_ADDR and BOARD_ALT_LB_ADDR constants defined in the
lwmon5 board-specific header (arch/ppc/platforms/4xx/lwmon5.h).
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
the lwmon5 board: the storage for the log-buffer itself is OCM(on-chip memory),
the log-buffer header is moved to six GPT registers (PPC440EPX_GPT0_COMP1, ...,
PPC440EPX_GPT0_COMP5).
To enable this, alternative, configuration the U-Boot board configuration
file for lwmon5 includes the definitions of alternative addresses for header
(CONFIG_ALT_LH_ADDR) and buffer (CONFIG_ALT_LB_ADDR).
The Linux shall be configured with the CONFIG_ALT_LB_LOCATION option set,
and has the BOARD_ALT_LH_ADDR and BOARD_ALT_LB_ADDR constants defined in the
lwmon5 board-specific header (arch/ppc/platforms/4xx/lwmon5.h).
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
The latter version stops when "run load" fails for whatever reasons
rendering the combination *a lot* more secure.
Signed-off-by: Detlev Zundel <dzu@denx.de>
Some boards (e.g. lwmon5) may use rather small watchdog intervals, so
causing it to reboot the board if U-Boot does a long busy-wait with
udelay(). Thus, for these boards we have to restart WD more
frequently.
This patch splits the busy-wait udelay() into smaller, predefined,
intervals, so that the watchdog timer may be resetted with the
configurable (CONFIG_WD_PERIOD) interval.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
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>
On Sequoia & LWMON5 the virtual address of the POST cache test is now
moved to a bigger address. This enables usage of more memory on those
boards.
Signed-off-by: Stefan Roese <sr@denx.de>
- Rename CFG_440_GPIO_TABLE to CFG_4xx_GPIO_TABLE
- Cleanup of the 4xx GPIO functions
- Move some GPIO defines from the cpu headers ppc405.h/ppc440.h into gpio.h
Signed-off-by: Stefan Roese <sr@denx.de>
The Linux PCF8563 RTC driver doesn't do autoprobing, so we need
to supply the RTC I2C address as bootline parameter. This patch
adds support for this rtc probing parameter to the bootargs:
"rtc-pcf8563.probe=0,0x51"
Signed-off-by: Stefan Roese <sr@denx.de>
Since this RTC POST test is taking quite a while to complete
it's only initiated upon special keypress same as the complete
memory POST.
Signed-off-by: Stefan Roese <sr@denx.de>
