This patch tries to implement a generic watchdog_reset() function that
can be used by all boards that want to service the watchdog device in
U-Boot. This watchdog servicing is enabled via CONFIG_WATCHDOG.
Without this approach, new boards or platforms needed to implement a
board specific version of this functionality, mostly copy'ing the same
code over and over again into their board or platforms code base.
With this new generic function, the scattered other functions are now
removed to be replaced by the generic one. The new version also enables
the configuration of the watchdog timeout via the DT "timeout-sec"
property (if enabled via CONFIG_OF_CONTROL).
This patch also adds a new flag to the GD flags, to flag that the
watchdog is ready to use and adds the pointer to the watchdog device
to the GD. This enables us to remove the global "watchdog_dev"
variable, which was prone to cause problems because of its potentially
very early use in watchdog_reset(), even before the BSS is cleared.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: "Marek Behún" <marek.behun@nic.cz>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Maxim Sloyko <maxims@google.com>
Cc: Erik van Luijk <evanluijk@interact.nl>
Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Weijie Gao <weijie.gao@mediatek.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: "Álvaro Fernández Rojas" <noltari@gmail.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100)
This patch moves all instances of static "watchdog_dev" declarations to
the "data" section. This may be needed, as the BSS may not be cleared
in the early U-Boot phase, where watchdog_reset() is already beeing
called. This may result in incorrect pointer access, as the check to
"!watchdog_dev" in watchdog_reset() may not be true and the function
may continue to run.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: "Marek Behún" <marek.behun@nic.cz>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100)
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Update boot_targets based on bootmode to run corresponding
distroboot command first.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Zynq and ZynqMP are sharing similar code and there is no reason to do
code duplication. Move zynq_board_read_rom_ethaddr() to common file for
easier conversion to DM.
Use ZynqMP version that's why also add CONFIG_ZYNQ_EEPROM_BUS to Syzygy
which is only one Zynq board which is using this feature.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This patch renames the routine fdtdec_setup_memory_size()
to fdtdec_setup_mem_size_base() as it now fills the
mem base as well along with size.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
The same change as was done for zynqmp with this description:
Add support for enabling the first watchdog pointed via aliases.
DT fragment:
aliases {
...
watchdog0= &watchdog0;
watchdog1 = &watchdog_lpd;
...
};
<zynqmp example removed>
Till this patch the first watchdog found in DT was used and started
which is not enabling all possible configuration based on user request.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Now that showing silicon version is part of the CPU
info display, let's remove checkboard().
Note that the generic show_board_info() will still
show the DT 'model' property. For instance:
U-Boot 2018.05-rc2-00025-g611b3ee0159b (Apr 19 2018 - 11:23:12 +0200)
CPU: Zynq 7z045
Silicon: v1.0
Model: Zynq ZC706 Development Board
I2C: ready
Based on patches from Ariel D'Alessandro <ariel@vanguardiasur.com.ar>,
and Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
mini configuration doesn't need to show this information.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit moves the FPGA descriptor definition
to mach-zynq, where it makes more sense.
Based on patches from Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
and Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
When static memory configuration is used U-Boot has capability to detect
memory size in setup range. Enable this feature for static
configuration.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Watchdog is only enabled in full u-boot. Adoption for SPL should be also
done because that's the right place where watchdog should be enabled.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
We are now using an env_ prefix for environment functions. Rename setenv()
for consistency. Also add function comments in common.h.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
By making dram_init_banksize() return an error code we can drop the
wrapper. Adjust this and clean up all implementations.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
The dram_init and dram_init_banksize functions were using a board
specific implementation for decoding the memory banks from the fdt. This
board specific implementation uses a static variable 'tmp' which makes
these functions unsafe for execution from within the board_init_f
context.
This unsafe use of a static variable was causing a specific bug when
using the zynq_zybo configuration, U-Boot would generate the following
error during image load. This was caused due to dram_init overwriting
the relocations for the 'image' variable within the do_bootm function.
Out of coincidence the un-initialized memory has a compression type
which is the same as the value for the relocation type R_ARM_RELATIVE.
Uncompressing Invalid Image ... Unimplemented compression type 23
It should be noted that this is just one way the issue could surface,
other cases my not be observed in normal boot flow. Depending on the
size of various sections, and location of relocations within __rel_dyn
and the compiler/linker the outcome of this bug can differ greatly.
This change makes the dram_init* functions use a generic implementation
of decoding and populating memory bank and size data.
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Fixes: 758f29d0f8 ("ARM: zynq: Support systems with more memory banks")
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The dram_init* functions for the zynq board are not safe for use from
the board_init_f stage due to its use of the 'tmp' static variable.
This incorrect use of a static variable was causing rare issues where
the dram_init function would overwrite some parts the __rel_dyn section
which caused obscure failures.
Using the zynq_zybo configuration, U-Boot would generate the following
error during image load. This was caused due to dram_init overwriting
the relocations for the "image" variable within the do_bootm function.
Out of coincidence the un-initialized memory has a compression type
which is the same as the value for the relocation type R_ARM_RELATIVE.
Uncompressing Invalid Image ... Unimplemented compression type 23
It should be noted that this is just one way the issue could surface,
other cases my not be observed in normal boot flow.
This change removes the existing code and copies the implementation of
the dram_init and dram_init_banksize from the
arch/arm/mach-uniphier/dram_init.c source. This version of these
functions does not use static variables and behaves the same (reading
banks from fdt, and using the first bank as the ram_size).
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Fixes: 758f29d0f8 ("ARM: zynq: Support systems with more memory banks")
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Zynq 7000S (Single A9 core) devices is using different ID code.
This patch adds this new codes and assign them.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Provide board specific option how to read MAC address from ROM.
Do it in generic way to be reusable by differnet boards.
If this is not enough board specific functions can be created.
Signed-off-by: Joe Hershberger <joe.hershberger@gmail.com> # driver part
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
OF_CONTROL is setup by default and memory reading is done via DT. Remove
all config files with memory references.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Use space instead of tab in checkboard print to aligned
it with others boards.
Reported-by: David Glessner <david.glessner@rockwellcollins.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
- Enable DM_ETH by default for Zynq and ZynqMP
- Remove board_eth_init code
- Change miiphy_read function to return value instead of error code
based on DM requirement
- Do not enable EMIO DT support by default
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing
devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear
away the ugly logic in include/fdtdec.h:
#ifdef CONFIG_OF_CONTROL
# if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL)
# define OF_CONTROL 0
# else
# define OF_CONTROL 1
# endif
#else
# define OF_CONTROL 0
#endif
Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to
CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for
SPL.
Also, we no longer have to cancel CONFIG_OF_CONTROL in
include/config_uncmd_spl.h and scripts/Makefile.spl.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Dont send always emio value as zero for zynq_gem_initialize
send it based on config.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
When CONFIG_FPGA is defined but CONFIG_SPL_FPGA is not, the build fails:
board.c: In function 'board_init':
board.c:41:3: error: 'fpga' undeclared (first use in this function)
fpga = fpga010;
Fix this by expanding the "#if.." around this block to match the other
FPGA checks and don't compile this block when buildign for SPL without
FPGA support.
Tested a bootloader that had CONFIG_FPGA defined without CONFIG_SPL_FPGA,
this now compiles without errors and loading FPGA from u-boot works.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Warnings:
board/xilinx/zynq/board.c:17:13: warning: symbol 'fpga' was not declared. Should it be static?
board/xilinx/zynq/board.c:20:13: warning: symbol 'fpga010' was not declared. Should it be static?
board/xilinx/zynq/board.c:21:13: warning: symbol 'fpga015' was not declared. Should it be static?
board/xilinx/zynq/board.c:22:13: warning: symbol 'fpga020' was not declared. Should it be static?
board/xilinx/zynq/board.c:23:13: warning: symbol 'fpga030' was not declared. Should it be static?
board/xilinx/zynq/board.c:24:13: warning: symbol 'fpga045' was not declared. Should it be static?
board/xilinx/zynq/board.c:25:13: warning: symbol 'fpga100' was not declared. Should it be static?
board/xilinx/zynq/board.c:120:5: warning: symbol 'board_mmc_init' was not declared. Should it be static?
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Added support to find the bootmodes by reading
slcr bootmode register. this can be helpful to
autoboot the configurations w.r.t a specified bootmode.
Added this functionality on board_late_init as it's not
needed for normal initializtion part.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Zynq can have axi ethernet and emaclite IPs in programmable
logic.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
The first 1MB is not initialized by first stage bootloader.
Check if memory is setup to 16bit mode and ECC is enabled.
If it is, clear the first 1MB.
Also u-boot should report only the half size of memory.
Acked-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
