Memory banks with address 0 and size 0 are empty and should not be
passed to the OS via device tree.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
The fdt_record_loadable()-function was wedged between other functions
that were guarded by ARCH_FIXUP_FDT_MEMORY. This could lead to linker
errors on some configurations.
With this change, fdt_record_loadable() is moved out of the
ARCH_FIXUP_FDT_MEMORY guard (plus I tried to retain alphabetical
ordering for functions by placing it appropriately).
References: 9f45aeb ("spl: fit: implement fdt_record_loadable")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reported-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
The MAC addresses get fixed in the device tree for "ethernet" nodes
is by using trailing number behind "ethernet" found in "/aliases".
It may not be necessary for the "ethernet" nodes to be sequential.
There can be gaps in between or any node disabled
So provide a support to fetch MAC addr sequentially from env
and apply them to "ethernet" nodes in the order they appear in
device tree only if "ethernet" is not "disabled"
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
During the loading of more complex FIT images (e.g. when the invoked
next stage needs to find additional firmware for a power-management
core... or if there are multiple images for different privilege levels
started in parallel), it is helpful to create a record of what images
are loaded where: if a FDT is loaded for one of the next stages, it
can be used to convey the status and location of loadables.
This adds a fdt_record_loadable() function that can be invoked to
record the status of each loadable below the /fit-images path.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Introduce fdt_overlay_apply_verbose, a method that applies an
overlay but in the case of an error produces a helpful message.
In addition if a base tree is found to be missing the __symbols__
node the message will point out that the probable reason is that
the base tree was miscompiled without the -@ option.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Acked-by: Simon Glass <sjg@chromium.org>
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.
Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
This function appears to obtain the value of the 'ranges' property rather
than 'reg'. As such it does not behave as documented or expected.
In addition it picks up the second field of the property which is the size
(with prop += naddr) rather than the first which is the address.
Fix it.
Signed-off-by: Simon Glass <sjg@chromium.org>
There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.
Signed-off-by: Heiko Schocher <hs@denx.de>
These two functions have an of_ prefix which conflicts with naming used
in of_addr. Rename them:
fdt_read_number
fdt_support_bus_default_count_cells
Signed-off-by: Simon Glass <sjg@chromium.org>
The Raspberry Pi device tree files since Linux v4.9 have a "ethernet"
alias pointing to the on-board Ethernet device node. However,
U-Boot's fdt_fixup_ethernet() only looks at ethernet aliases ending
in digits.
As the spec doesn't mandate that aliases must end in numbers and there
have been much older uses of an "ethernet" aliases in the wild
(according to Tom Rini), change the code to accept "ethernet" as well.
Without this Linux isn't told of the MAC address provided by the
RPI firmware and the ethernet interface is always assigned a random MAC
address.
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
fdt_fixup_mtdparts currently does nothing when partition info is
runtime-generated or compiled-in defaults are used.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Fix nits in commit message:
Signed-off-by: Simon Glass <sjg@chromium.org>
Commit 674bb24982 ("net: cosmetic: Replace magic numbers in arp.c with
constants") introduced a nice define to replace the magic value 6 for
the ethernet hardware address. Replace more hardcoded instances of 6
which really reference the ARP_HLEN (iow the MAC/Hardware/Ethernet
address).
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Commit e2f88dfd2d ("libfdt: Introduce new ARCH_FIXUP_FDT option")
allows us to skip memory setup of DTB, but a problem for ARM is that
spin_table_update_dt() and psci_update_dt() are skipped as well if
CONFIG_ARCH_FIXUP_FDT is disabled.
This commit allows us to skip only fdt_fixup_memory_banks() instead
of the whole of arch_fixup_fdt(). It will be useful when we want to
use a memory node from a kernel DTB as is, but need some fixups for
Spin-Table/PSCI.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Simon Glass <sjg@chromium.org>
Fixed build error for x86:
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes devicetree nodes and or properties are added out of the u-boot
console, maybe through some script or manual interaction.
The devicetree as loaded or embedded is quite small, so the devicetree
has to be resized to take up those new nodes/properties.
In original the devicetree was only extended by effective
4 * add_mem_rsv.
With this commit we can add an argument to the "fdt resize" command,
which takes the extrasize to be added.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Simon Glass <sjg@chromium.org>
The next patch will call fdt_translate_address() from somewhere with a
"const void *blob" rather than a "void *blob", so fdt_translate_address()
must accept a const pointer too. Constify the minimum number of function
parameters to achieve this.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass <sjg@chromium.org>
Provide some documentation for the fields of struct of_bus, for
consistency with that provided for the new match field.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Support ISA busses in much the same way as Linux does. This allows for
ISA bus addresses to be translated, and only if CONFIG_OF_ISA_BUS is
selected in order to avoid including the code in builds which won't need
it.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
For multiple ethernet interfaces the FDT offset of '/aliases' will change as we
are adding MAC addresses to the FDT.
Therefore only the first interface ('ethernet0') will get properly updated in
the FDT, with the rest getting FDT errors when we try to set their MAC address.
Signed-off-by: Lev Iserovich <iserovil@deshawresearch.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This reverts commit 71105f50fe.
The reverted commit was applied for a temporary to unbreak
few Exynos boards on the release.
After the discussion about the change, this commit should be avoided.
Fixed device-tree for Exynos, allows reverting it without any issues.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
This reverts commit 3e303f748c.
The fix up in the /aliases node does not work under the following
scenarios:
- Not every non-DM serial driver was written to have a driver name
that conforms the format of "serial%d" or "eserial%d".
- With driver model serial, the stdio_devices[] stores the serial
device node name in the device tree.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Commit: dm: core: Enable optional use of fdt_translate_address()
Enables use of this function as default, but after this it's not
possible to get dev address for the case in which: '#size-cells == 0'
This causes errors when getting address for some GPIOs, for which
the '#size-cells' is set to 0.
Example error:
'__of_translate_address: Bad cell count for gpx0'
Allowing for that case by modifying the macro 'OF_CHECK_COUNTS',
(called from )__of_translate_address(), fixes the issue.
Now, this macro doesn't check, that '#size-cells' is greater than 0.
This is possible from the specification point of view, but I'm not sure
that it doesn't introduce a regression for other configs.
Please test and share the results.
Tested-on: Odroid U3, Odroid X2, Odroid XU3, Sandbox.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Currently in fdt_fixup_ethernet() the MAC address fix up is
handled in a loop of which the exit condition is to test the
"eth%daddr" env is not NULL. However this creates unnecessary
constrains that those "eth%daddr" env variables must be
sequential even if "ethernet%d" does not start from 0 in the
"/aliases" node. For example, with "/aliases" node below:
aliases {
ethernet3 = &enet3;
ethernet4 = &enet4;
};
"ethaddr", "eth1addr", "eth2addr" must exist in order to fix
up ethernet3's MAC address successfully.
Now we change the loop logic to iterate the properties in the
"/aliases" node. For each property, test if it is in a format
of "ethernet%d", then get its MAC address from corresponding
"eth%daddr" env and fix it up in the dtb.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
On OMAP4 Panda (+v4.3 kernel)
Tested-by: Tom Rini <trini@konsulko.com>
In fdt_fixup_ethernet() only "usbethaddr" is handled to fix up the
first usb ethernet port MAC address. Other additional usb ethernet
ports are ignored as there is no logic to handle "usbeth%daddr".
It is suggested we should use "ethaddr" for all ethernet devices.
Hence deprecate "usbethaddr" usage in fdt_fixup_ethernet().
This actually reverts commit b1f49ab8c7
"ARM: fdt support: Add usbethaddr as an acceptable MAC".
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
On OMAP4 Panda (+ v4.3 kernel)
Tested-by: Tom Rini <trini@konsulko.com>
Currently OF_BAD_ADDR is always -1ULL. When using OF_BAD_ADDR as the
return value of dev_get_addr(), it creates potential size mismatch
as dev_get_addr() uses FDT_ADDR_T_NONE as the return value which can
be either -1U or -1ULL depending on CONFIG_PHYS_64BIT. Now we change
OF_BAD_ADDR to FDT_ADDR_T_NONE to avoid such case.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Currently, using fdt_fixup_stdout() on a device tree that is missing
the relevant alias results in this:
WARNING: could not set linux,stdout-path FDT_ERR_NOTFOUND.
ERROR: /chosen node create failed
- must RESET the board to recover.
FDT creation failed! hanging...### ERROR ### Please RESET the board ###
There is no reason for this to be a fatal error rather than a warning,
and removing this allows for a smooth transition on a platform where
the device tree currently lacks the correct aliases but will have them
in the future.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <yorksun@freescale.com>
Avoid clearing the reg property in the memory DT node if no memory
banks have been specified for a board (CONFIG_NR_DRAM_BANKS == 0).
This allows boards to let U-Boot skip the DT memory tinkering in case
other firmware has already setup the node properly before.
This should be safe as all callers of fdt_fixup_memory_banks that use
a computed <banks> value put at least 1 in there.
Add some documentation comments to the header file.
Signed-off-by: Andre Przywara <osp@andrep.de>
Acked-by: Simon Glass <sjg@chromium.org>
Before device-tree, the device serial number used to be passed to the kernel
using ATAGs (on ARM). This is now deprecated and all the handover to the kernel
should now be done using device-tree. Thus, this passes the serial-number
property to the kernel using the serial-number property of the root node, as
expected by the kernel.
The serial number is a string that somewhat represents the device's serial
number. It might come from some form of storage (e.g. an eeprom) and be
programmed at factory-time by the manufacturer or come from identification
bits available in e.g. the SoC.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Simon Glass <sgj@chromium.org>
Add 'fdt_fixup_display' function to fixup device-tree native-mode property
of display-timings node to select timings for a specific display.
This is useful if a device-tree has configurations for multiple
display timings for undetectable displays.
see kernel Documentation/devicetree/bindings/video/display-timing.txt
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Simon Glass <sjg@chromium.org>
After commit 933cdbb479: "fdt: Try to use fdt_address_cells()/fdt_size_cells()"
I noticed that allwinner boards would no longer boot.
Switching to fdt_address_cells / fdt_size_cells changes the result from
bytes to 32 bit words, so when we increment pointers into the blob, we must
do so by 32 bit words now.
This commit makes allwinner boards boot again.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>
Tested-by: Vince Hsu <vinceh@nvidia.com>
Now that we have inttypes.h, use it in a few more places to avoid compiler
warnings on sandbox when building on 64-bit machines.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a generic helper to fill and enable simplefb nodes.
The first user of this will be the sunxi display code.
lcd_dt_simplefb_configure_node is also a good candidate to be converted
to use this, but that requires someone to run some tests first, as
lcd_dt_simplefb_configure_node does not honor #address-cells and #size-cells,
but simply assumes 1 and 1 for both.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Simon Glass <sjg@chromium.org>
U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does. This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.
Many of references of those macros must be fixed to suppress warnings.
We have two options:
- Use min, max, min3, max3 only when the arguments have the same type
(or add casts to the arguments)
- Use min_t/max_t instead with the appropriate type for the first
argument
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <trini@ti.com>
Use these new functions where possible. They default to a value of 2 so we
cannot use them in some places where we need a default value of 1.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
This function is only called within this file so make it static. Also
fix its argument types to be consistent with its caller.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>
This function is useful for ensuring that a node exists. Export it so it
can be used more widely.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>
of_bus_default_count_cells can be used to get the #address-cells
and #size-cells defined by the current node's parent node. This
is required when using of_read_number to read from FDT nodes that
can be 32 or 64 bytes depending on values defined by the parent.
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
CC: Scott Wood <scottwood@freescale.com>
This is being done so that it can be used outside 'fdt_support.c'. Making
life more convenient when reading device node properties that can be 32
or 64 bits long.
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Before this commit, fdt_initrd() just returned if initrd
start address is zero.
But it is possible if the RAM is located at address 0.
This commit makes the return condition more reasonable:
Just return if the size of initrd is zero.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Data written to DTB must be converted to big endian order.
It is usually done by using cpu_to_fdt32(), cpu_to_fdt64(), etc.
fdt_initrd() invoked write_cell(), which always swaps byte order.
It means the function only worked on little endian architectures.
(On big endian architectures, the byte order should be kept as it is)
This commit uses cpu_to_fdt32() and cpu_to_fdt64()
and deletes write_cell().
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Data written to DTB must be converted to big endian order.
It is usually done by using cpu_to_fdt32(), cpu_to_fdt64(), etc.
fdt_fixup_memory_banks() invoked write_cell(), which always
swaps byte order.
It means the function only worked on little endian architectures.
This commit adds and uses a new helper function, fdt_pack_reg(),
which works on both big endian and little endian architrectures.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
In the next commit, I will add a new function, fdt_pack_reg()
which uses get_cells_len().
Beforehand, this commit adds 'const' qualifier to get_cells_len().
Otherwise, a warning message will appear:
warning: passing argument 1 of 'get_cells_len' discards 'const'
qualifier from pointer target type [enabled by default]
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
- Do not use a deep indentation. We have only 80-character
on each line and 1 indentation consumes 8 spaces. Before the
code moves far to the right, you should consider to
fix your code. See Linux Documentation/CodingStyle.
- Add CONFIG_OF_STDOUT_VIA_ALIAS and OF_STDOUT_PATH macros
only to their definition. Do not add them to both
callee and caller. This is a tip to avoid using #ifdef
everywhere.
- OF_STDOUT_PATH and CONFIG_OF_STDOUT_VIA_ALIAS are exclusive.
If both are defined, the former takes precedence.
Do not try to fix-up "linux,stdout-path" property twice.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
After all, we have realized "force" argument is completely
useless. fdt_chosen() was always called with force = 1.
We should always want to do the same thing
(set appropriate value to the property)
even if the property already exists.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
After all, we have realized "force" argument is completely
useless. fdt_initrd() was always called with force = 1.
We should always want to do the same thing
(set appropriate value to the property)
even if the property already exists.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Some functions in fdt_support.c do the same routine:
search a node with a given name ("chosen", "memory", etc.)
or newly create it if it does not exist.
So this commit makes that routine to a helper function.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
A board that has a USB ethernet device only may set the usbetheraddr
and not the ethaddr.
ethaddr will be the default MAC address that is chosen and if that
is not populated then the usbethaddr is looked at. If neither are set
then then device tree blob is not modified.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
This patch adds a helper function that can be used to interpret most
"ranges" properties in the device tree.
It reads the n'th range out of a "ranges" array and returns the node's
virtual address of the range, the physical address that range starts at
and the size of the range.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
We already have a nice helper to give us a property cell value with default
fall back from a path. Split that into two helpers - one for the old path
based lookup and one to give us a value based on a node offset.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
The change to add 64bit initrd support broke 32bit initrd support as it
always set 64bits worth of data into the properties, even on 32bit
systems. The fix is to use addr_cell_len (which already says how much
data is in 'tmp') to set the property, rather than always setting 8.
Thanks to Stephen Warren for pointing out the fix here.
Reported-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Tom Rini <trini@ti.com>
Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be
added to include/configs/exynos5-dt.h now.
Conflicts:
include/configs/exynos5250-dt.h
Signed-off-by: Tom Rini <trini@ti.com>
fdt_fixup_memory_banks() will add and update /memory node in
device tree blob. In the case that /memory node doesn't exist,
after adding a new one, this function returns error.
The correct behavior should be continuing to update its properties.
Signed-off-by: Miao Yan <miao.yan@windriver.com>
commit 39ac34473f ("cmd_mtdparts: use 64
bits for flash size, partition size & offset") introduced warnings
in a couple places due to printf formats or pointer casting.
This patch fixes the warnings pointed out here:
http://lists.denx.de/pipermail/u-boot/2013-October/164981.html
Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Tom Rini <trini@ti.com>
Some ARM compilers may emit code that makes unaligned accesses when
faced with constructs such as:
char mac[16] = "ethaddr";
Replace this with a strcpy() call instead to avoid this. strcpy() is
used here, rather than replacing all usage of the mac variable with the
string itself, since the loop itself sprintf()s to the variable each
iteration, so strcpy() is doing basically the same thing.
Reported-by: Florian Meier
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
It appears that there are some cases where we have more than 4 banks
of memory. Use CONFIG_NR_DRAM_BANKS if it's defined to handle this.
This will take up a little extra stack space (64 bytes extra if we go
up to 8 banks), but that seems OK.
Signed-off-by: Doug Anderson <dianders@chromium.org>
trivial:
fdt_support.c:89:64: warning: Using plain integer as NULL pointer
fdt_support.c:325:65: warning: Using plain integer as NULL pointer
fdt_support.c:352:65: warning: Using plain integer as NULL pointer
For the following bad constant expression, We hardcode the max. number of
memory banks to four for the foreseeable future, and add an error with
instructions on what to do once it's exceeded:
fdt_support.c:397:22: error: bad constant expression
For the rest below, sparse found a couple of wrong endian conversions
in of_bus_default_translate() and fdt_get_base_address(), but
otherwise the rest is mostly annotation fixes:
fdt_support.c:64:24: warning: cast to restricted __be32
fdt_support.c:192:21: warning: incorrect type in assignment (different base types)
fdt_support.c:192:21: expected unsigned int [unsigned] [usertype] tmp
fdt_support.c:192:21: got restricted __be32 [usertype] <noident>
fdt_support.c:201:21: warning: incorrect type in assignment (different base types)
fdt_support.c:201:21: expected unsigned int [unsigned] [addressable] [usertype] tmp
fdt_support.c:201:21: got restricted __be32 [usertype] <noident>
fdt_support.c:304:13: warning: incorrect type in assignment (different base types)
fdt_support.c:304:13: expected unsigned int [unsigned] [usertype] val
fdt_support.c:304:13: got restricted __be32 [usertype] <noident>
fdt_support.c:333:13: warning: incorrect type in assignment (different base types)
fdt_support.c:333:13: expected unsigned int [unsigned] [usertype] val
fdt_support.c:333:13: got restricted __be32 [usertype] <noident>
fdt_support.c:359:13: warning: incorrect type in assignment (different base types)
fdt_support.c:359:13: expected unsigned int [unsigned] [usertype] val
fdt_support.c:359:13: got restricted __be32 [usertype] <noident>
fdt_support.c:373:21: warning: cast to restricted __be32
fdt_support.c:963:48: warning: incorrect type in argument 1 (different base types)
fdt_support.c:963:48: expected restricted __be32 const [usertype] *p
fdt_support.c:963:48: got unsigned int [usertype] *<noident>
fdt_support.c:971:48: warning: incorrect type in argument 1 (different base types)
fdt_support.c:971:48: expected restricted __be32 const [usertype] *p
fdt_support.c:971:48: got unsigned int [usertype] *<noident>
fdt_support.c:984:29: warning: incorrect type in argument 1 (different base types)
fdt_support.c:984:29: expected restricted __be32 const [usertype] *cell
fdt_support.c:984:29: got unsigned int [usertype] *addr
fdt_support.c:996:32: warning: incorrect type in argument 1 (different base types)
fdt_support.c:996:32: expected restricted __be32 const [usertype] *cell
fdt_support.c:996:32: got unsigned int [usertype] *addr
fdt_support.c:1041:41: warning: incorrect type in argument 1 (different base types)
fdt_support.c:1041:41: expected restricted __be32 const [usertype] *cell
fdt_support.c:1041:41: got unsigned int [usertype] *addr
fdt_support.c:1053:41: warning: incorrect type in argument 2 (different base types)
fdt_support.c:1053:41: expected restricted __be32 const [usertype] *range
fdt_support.c:1053:41: got unsigned int const [usertype] *[assigned] ranges
fdt_support.c:1064:53: warning: incorrect type in argument 2 (different base types)
fdt_support.c:1064:53: expected restricted __be32 const [usertype] *addr
fdt_support.c:1064:53: got unsigned int [usertype] *addr
fdt_support.c:1110:50: warning: incorrect type in argument 2 (different base types)
fdt_support.c:1110:50: expected restricted __be32 const [usertype] *addr
fdt_support.c:1110:50: got unsigned int *<noident>
fdt_support.c:1121:49: warning: incorrect type in argument 1 (different base types)
fdt_support.c:1121:49: expected restricted __be32 const [usertype] *cell
fdt_support.c:1121:49: got unsigned int *<noident>
fdt_support.c:1147:60: warning: incorrect type in argument 2 (different base types)
fdt_support.c:1147:60: expected restricted __be32 const [usertype] *addr
fdt_support.c:1147:60: got unsigned int *<noident>
fdt_support.c:1081:5: warning: symbol '__of_translate_address' was not declared. Should it be static?
fdt_support.c:1154:5: error: symbol 'fdt_translate_address' redeclared with different type (originally declared at include/fdt_support.h:95) - incompatible argument 3 (different base types)
fdt_support.c: In function 'fdt_node_offset_by_compat_reg':
fdt_support.c:1173:17: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]
See also linux kernel commit 0131d897 "of/address: use proper
endianess in get_flags".
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Jerry Van Baren <gvb.uboot@gmail.com>
and, if including libfdt.h which includes libfdt_env.h in
the correct order, don't include fdt.h before libfdt.h.
this is needed to get the fdt type definitions set from
the project environment before fdt.h uses them.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Jerry Van Baren <gvb.uboot@gmail.com>
This function can be used for LCDs as well as monitors.
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Remove the parts depending either on disabled CONFIG_SERIAL_MULTI
or ifdefs around CONFIG_SERIAL_MULTI parts since CONFIG_SERIAL_MULTI
is now enabled by default.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
The function fdt_getprop_u32_default doesn't modify the fdt, so it can use a
const void * for its fdt argument.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Some functions in fdt_support.c use fdt_getprop to read 32 bit values out of
the device tree, but then use them directly without doing any endian
conversion. Because they check for a value that doesn't actually appear in
practice, the functions continued to work even though they're incorrect.
This change adds the missing conversions.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Add common function fdt_set_node_status() to assist in various locations
that we set a nodes status. This function utilizes the status values
that are part of the EPAPR spec (on power.org).
fdt_set_status_by_alias() is based on fdt_set_node_status() but uses an
alias string to identify the node to update.
We also add some shortcut functions to help the common cases of setting
"okay" and "disabled":
fdt_status_okay()
fdt_status_disabled()
fdt_status_okay_by_alias()
fdt_status_disabled_by_alias()
Finally, we fixup the corenet_ds ethernet code which previously had
a function by the same name that can be replaced with the new helpers.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
The device tree compiler, dtc, can use "phandle" and/or "linux,phandle"
properties to specify the phandle for any node. By default, it uses
both, but "linux,phandle" is deprecated. One day, we'd like to stop using
"linux,phandle", but U-boot needs to support both properties equally
first.
fdt_alloc_phandle() generates a unique phandle, but it was only checking
the "linux,phandle" properties. Instead, we use fdt_get_phandle(),
which checks both properties automatically. This ensures that we
support dtbs that only use "phandle".
The side-effect is that fdt_alloc_phandle() now takes twice as long, since
it has to check for two properties instead of one in each node that it
searches.
Signed-off-by: Timur Tabi <timur@freescale.com>
fdt_create_phandle() was ignoring errors from fdt_set_phandle(). If an
error occurs, print an error message and return 0, which is an invalid
phandle. We also need to change the return type for fdt_create_phandle()
to indicate that it cannot return an error code.
Signed-off-by: Timur Tabi <timur@freescale.com>
Add a helper function that will return a phandle value for the given
node. If the node doesn't have a phandle already one will be created.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
The old fdt_create_phandle didn't actually create a phandle it just
set one. We'll introduce a new helper that actually does creation.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
The ePAPR specification says that phandle properties should be called
"phandle", and not "linux,phandle". To facilitate the migration from
"linux,phandle" to "phandle", introduce function fdt_create_phandle(),
which creates a phandle in a given node. For now, we create both the
"phandle" and "linux,phandle" properties. A later version of this
function will remove support for "linux,phandle".
Signed-off-by: Timur Tabi <timur@freescale.com>
Introduce two functions, fdt_verify_alias_address() and
fdt_get_base_address(), which can be used to verify the physical address
of a device in a device tree.
fdt_get_base_address() returns the base address of an SOC or PCI node.
fdt_verify_alias_address() prints a message if the address of a node
specified by an alias does not match the given physical address.
Signed-off-by: Timur Tabi <timur@freescale.com>
The initrd_end variable contains the address immediately *after* the
initrd blob, not the last address containing data. This patch fixes
an inadvertent off-by-one when setting up the initrd reserved map.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
When fdt_fixup_memory_banks is called with 2-cell address and size
fields in the device-tree (IE: 64-bit address and size), then it will
overflow its on-stack "tmp" buffer.
This fixes the buffer size and adds a comment explaining how many bytes
need to be allocated per record.
Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Jerry Van Baren <vanbaren@cideas.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Fix compiler warning
fdt_support.c: In function 'of_bus_default_count_cells':
fdt_support.c:957: warning: passing argument 1 of '__swab32p' discards qualifiers from pointer target type
fdt_support.c:965: warning: passing argument 1 of '__swab32p' discards qualifiers from pointer target type
be32_to_cpup() expects an 'u32 *' while prop is 'const u32 *'.
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
Commit a6bd9e8 "FDT: Add fixup support for multiple banks of memory"
removed code but forgot to remove the variables used by it, resulting
in warnings:
fdt_support.c: In function 'fdt_fixup_memory_banks':
fdt_support.c:399: warning: unused variable 'sizecell'
fdt_support.c:399: warning: unused variable 'addrcell'
Remove the declarations, too.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Add fdt_fixup_memory_banks and reimplement fdt_fixup_memory
using it. Tested on OMAP3 beagle board with two banks of
memory.
Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Jerry Van Baren <vanbaren@cideas.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Boards can pass display timing info for drivers using EDID
block. Provide common function to add board specific EDID
data to the device tree. Subsequent patch makes use of this
functionality.
Detailed timing descriptor data from EDID is used for
programming the display controller. This is currently
implemented on the Linux side by the fsl-diu-fb frame
buffer driver and it is documented there in
Documentation/powerpc/dts-bindings/fsl/diu.txt.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
This patch fixes a bug in fdt_fixup_nor_flash_node() when the reg
property has multiple reg tuples, like:
reg = <0 0x00000000 0x04000000
0 0x04000000 0x04000000>;
In this case this function did not update the reg property correctly.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch changes the behaviour of the fdt_fixup_nor_flash_node()
function. Now it doesn't patch the size of the "reg" property with the
chip-select size, but with the size returned from the new function
flash_get_bank_size(). This function will return per weak default the
flash size of the bank (bank = chip-select numer) detected by the flash
driver. If this does not fit your needs, this function may be overridden
by a board specific one.
For this the parameters needed to be changed. So I intentionally squashed
the PPC4xx stuff using this routine into this patch. Otherwise it would
not be git-bisectable anymore.
The board specific function for the AMCC/APM Ebony eval board is now
included in this patch version.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Detlev Zundel <dzu@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
Cc: Wolfgang Denk <wd@denx.de>
fdt_parent_offset() is an expensive operation, so we'd like to reduce
unnecessary calls to it.
Further, the practice of iterating up to the root if address/size cells
aren't found was apparently done for Linux for compatibility with certain
buggy Open Firmware implementations, and U-Boot inherited the code. The
compliant behavior is to treat a missing #address-cells as 2, and a missing
#size-cells as 1 -- never looking anywhere but the immediate parent of the
node of interest.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Original bug description from Feng (fdt_resize() bug caused "WARNING:
could not set linux, initrd-start FDT_ERR_NOSPACE."):
What I got is an error: "WARNING: could not set linux,initrd-start
FDT_ERR_NOSPACE." after loading Device Tree blob. This in turn caused
linux to miss init part.
After some digging, I found out the reason for this error, it is caused
by fdt_resize().
FDT blob got resized after filling in all board specific information of
PowerPC. (in boot_body_linux()). It reduced blob size with only extra
space for two fdt_reserve_entry, one for fdt itself, and one for initrd.
Then it's aligned to a 0x1000 page boundary. However, later in
fdt_initrd(), it could add two more properties, initrd-start AND
initrd-end, each one needs at least two fdt_reserve_entry sizes done by
_fdt_add_property() (name and value). Thus, the two fdt_reserve_entry
extra space is not sufficient.
So for some specific fdt size which is just under the page boundary
after resizing, this will cause an error of FDT_ERR_NOSPACE in
fdt_initrd() when setting those two properties, and failed to pass
initrd information to linux.
My fix is in fdt_resize(), leave at least 4 fdt_reserve_entry for
initrd. So instead of 2*sizeof(struct fdt_reserve_entry) for
actual_totalsize, use 5*sizeof(struc fdt_reserve_entry).
Stefan: I got this same error on katmai, when trying to boot with
initrd (run flash_self). This patch fixes this issue.
Signed-off-by: Feng Wang <fwang02@harris.com>
Tested-by: Stefan Roese <sr@denx.de>
Cc: Jerry Van Baren <gvb.uboot@gmail.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
If we are creating reference (handles) to nodes in a device tree we need
to first create a new phandle in node and this needs a new phandle
value. So we search through the whole dtb to find the max phandle value
and return the next greater value for a new phandle allocation.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Given a compatible string and physical address try and find a node that
matches. This is useful when we want to find a specific device node to
update (for example if we have multiple PCI nodes we can use the
physical address to distinguish them when trying to update the device
tree).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
This code is extracted out of the Linux Kernel code from
arch/powerpc/kernel/prom_parse.c.
We maintain some of the same structure to support multiple bus types even
though we only have one in the current code. In the future we might want
to translate across a PCI bus and thus it will be easier to add that
functionality back in.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Add sec3.1 h/w geometry for fdt node fixups.
Also, technically, whilst SEC v3.3 h/w honours the tls_ssl_stream descriptor
type, it lacks the ARC4 algorithm execution unit required to be able
to execute anything meaningful with it. Change the node to agree with
the documentation that declares that the sec3.3 really doesn't have such
a descriptor type.
Reported-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Add a helper function that given an alias will delete both the node
the alias points to and the alias itself
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Allow overwriting defined partitions in the device tree blob
using partition info defined in the 'mtdparts' environment
variable.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
Currently fdt_fixup_stdout() is using hard-coded CONFIG_CONS_INDEX
constant. With multi-serial support, the CONS_INDEX may no longer
represent actual console, so we should try to extract port number
from the current stdio device name instead of always hard-coding the
constant value.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Its possible that we end up with a device tree that happens to be a
particular size that after we call fdt_resize() we don't have any
space left for the initrd mem_rsv.
Fix this be adding a second mem_rsv into the size calculation. We
had one to cover the fdt itself and we have the potential of adding
a second for the initrd.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
This function can be used to update the size in the "reg" property
of the NOR FLASH device nodes. This is necessary for boards with
non-fixed NOR FLASH sizes.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Wolfgang Denk <wd@denx.de>
