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>
