The __of_translate_address routine translates an address from the
device tree into a CPU physical address. A note in the description of
the routine explains that the crossing of any level with
since inherited from IBM. This does not happen for Texas Instruments, or
at least for the beaglebone device tree. Without this patch, in fact,
the translation into physical addresses of the registers contained in the
am33xx-clocks.dtsi nodes would not be possible. They all have a parent
with #size-cells = <0>.
The CONFIG_OF_TRANSLATE_ZERO_SIZE_CELLS symbol makes translation
possible even in the case of crossing levels with #size-cells = <0>.
The patch acts conservatively on address translation, except for
removing a check within the of_translate_one function in the
drivers/core/of_addr.c file:
+
ranges = of_get_property(parent, rprop, &rlen);
- if (ranges == NULL && !of_empty_ranges_quirk(parent)) {
- debug("no ranges; cannot translate\n");
- return 1;
- }
if (ranges == NULL || rlen == 0) {
offset = of_read_number(addr, na);
memset(addr, 0, pna * 4);
debug("empty ranges; 1:1 translation\n");
There are two reasons:
1 The function of_empty_ranges_quirk always returns false, invalidating
the following if statement in case of null ranges. Therefore one of
the two checks is useless.
2 The implementation of the of_translate_one function found in the
common/fdt_support.c file has removed this check while keeping the one
about the 1:1 translation.
The patch adds a test and modifies a check for the correctness of an
address in the case of enabling translation also for zero size cells.
The added test checks translations of addresses generated by nodes of
a device tree similar to those you can find in the files am33xx.dtsi
and am33xx-clocks.dtsi for which the patch was created.
The patch was also tested on a beaglebone black board. The addresses
generated for the registers of the loaded drivers are those specified
by the AM335x reference manual.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Tested-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>
The commit 9f45aeb937 ("spl: fit: implement fdt_record_loadable") which
introduced fdt_record_loadable() state there spl_fit.c is not 64bit safe.
Based on my tests on Xilinx ZynqMP zcu102 platform there shouldn't be a
problem to record these addresses in 64bit format.
The patch adds support for systems which need to load images above 4GB.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
SPL is creating fit-images DT node when loadables are recorded in selected
configuration. Entries which are created are using entry-point and
load-addr property names. But there shouldn't be a need to use non standard
properties because entry/load are standard FIT properties. But using
standard FIT properties enables option to use generic FIT functions to
descrease SPL size. Here is result for ZynqMP virt configuration:
xilinx_zynqmp_virt: spl/u-boot-spl:all -82 spl/u-boot-spl:rodata -22 spl/u-boot-spl:text -60
The patch causes change in run time fit image record.
Before:
fit-images {
uboot {
os = "u-boot";
type = "firmware";
size = <0xfd520>;
entry-point = <0x8000000>;
load-addr = <0x8000000>;
};
};
After:
fit-images {
uboot {
os = "u-boot";
type = "firmware";
size = <0xfd520>;
entry = <0x8000000>;
load = <0x8000000>;
};
};
Replacing calling fdt_getprop_u32() by fit_image_get_entry/load() also
enables support for reading entry/load properties recorded in 64bit format.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently, fdt_fixup_mtdparts() only checks the compatible property.
It is pointless to fix up the disabled node.
Skip the node if it has the property:
status = "disabled"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Platform code can call fdt_fixup_mtdparts() in order to hand U-Boot's
MTD partitions over to the Linux device tree.
Currently, fdt_fixup_mtdparts() calls mtdparts_init() in its entry.
If no target MTD device is found, an error message like follows is
displayed:
Device nand0 not found!
This occurs when the same code (e.g. arch/arm/mach-uniphier/fdt-fixup.c)
is shared among several boards, but not all of them support an MTD device.
Parse the DT first, then call mtdparts_init() only when the target MTD
node is found.
Yet, you still need to call mtdparts_init() before device_find().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This function is only called from fdt_fixup_mtdpart() in the same file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Currently, fdt_fixup_mtdparts() only checks the compatible property.
It is pointless to fix up the disabled node.
Skip the node if it has the property:
status = "disabled"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Platform code can call fdt_fixup_mtdparts() in order to hand U-Boot's
MTD partitions over to the Linux device tree.
Currently, fdt_fixup_mtdparts() calls mtdparts_init() in its entry.
If no target MTD device is found, an error message like follows is
displayed:
Device nand0 not found!
This occurs when the same code (e.g. arch/arm/mach-uniphier/fdt-fixup.c)
is shared among several boards, but not all of them support an MTD device.
Parse the DT first, then call mtdparts_init() only when the target MTD
node is found.
Yet, you still need to call mtdparts_init() before device_find().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This function is only called from fdt_fixup_mtdpart() in the same file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for setting linux,usable-memory property in the memory
node of device tree for the kernel [1].
This property holds a base address and size, describing a
limited region in which memory may be considered available for use by
the kernel. Memory outside of this range is not available for use.
[1] https://www.kernel.org/doc/Documentation/devicetree/bindings/chosen.txt
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
The fdt_pci_dma_ranges() cannot work on e.g. ARM, since the DT entries
endianness is not adjusted at all. Fix this.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Currently, fdt_get_base_address() returns 0 if the "reg" property is
missing. Since 0 is a valid value, it is not suitable for the error
handling. Return OF_BAD_ADDR instead.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add the following functions to translate DMA address to CPU address:
- dev_translate_dma_address()
- ofnode_translate_dma_address()
- of_translate_dma_address()
- fdt_translate_dma_address()
These functions work the same way as xxx_translate_address(), with the
difference that the translation relies on the "dma-ranges" property
instead of the "ranges" property.
Add related test. Test report:
=> ut dm fdt_translation
Test: dm_test_fdt_translation: test-fdt.c
Test: dm_test_fdt_translation: test-fdt.c (flat tree)
Failures: 0
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
When using fdt_fixup_mtdparts() offset and length cell sizes
are limited to 4 bytes (1 cell). However if the mtd device is
bigger then 4GiB, then #address-cells and #size-cells are
8 bytes (2 cells) [1].
This patch read #size-cells and uses either fdt32_t or
fdt64_t cell size. The default is fdt32_t.
[1] Documentation/devicetree/bindings/mtd/partition.txt
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This function merely relocates the fdt blob, so don't let it alter
it by adding reservations that didn't exist before.
Instead, if the memory used for the fdt blob has been reserved
before calling this function, ensure the relocated memory is
marked as reserved instead.
Reported-by: Keerthy <j-keerthy@ti.com>
Reported-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Commit 6d29cc7dcf ("fdt: Fixup only valid memory banks") ended up
being merged twice, first as:
commit 6d29cc7dcf
Author: Thierry Reding <treding@nvidia.com>
AuthorDate: Tue Jan 30 11:34:17 2018 +0100
Commit: Simon Glass <sjg@chromium.org>
CommitDate: Sun Feb 18 12:53:38 2018 -0700
fdt: Fixup only valid memory banks
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>
and later again, though this time it was v2:
commit ed5af03f9b
Author: Thierry Reding <treding@nvidia.com>
AuthorDate: Thu Feb 15 19:05:59 2018 +0100
Commit: Tom Rini <trini@konsulko.com>
CommitDate: Fri Feb 23 10:40:50 2018 -0500
fdt: Fixup only valid memory banks
Memory banks with address 0 and size 0 are empty and should not be
passed to the OS via device tree.
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The second version was slightly different, so the main hunk of the patch
was applied twice. This isn't harmful because the code is idempotent,
but it's wasteful to run the same code twice.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
We usually deal with hexadecimal addresses and sizes in
device-tree. Its much easier if debug logs print hexadecimal
values too.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
On the sandbox the memory addresses in the device tree refer to the virtual
address space of the sandbox. This implies that the memory reservations for
the fdt also have to be converted to this address space.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
In int-ll64.h, we always use the following typedefs:
typedef unsigned int u32;
typedef unsigned long uintptr_t;
typedef unsigned long long u64;
This does not need to match to the compiler's <inttypes.h>.
Do not include it.
The use of PRI* makes the code super-ugly. You can simply use
"l" for printing uintptr_t, "ll" for u64, and no modifier for u32.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
If CONFIG_NR_DRAM_BANKS is bigger than the default
value (4) define MEMORY_BANKS_MAX as CONFIG_NR_DRAM_BANKS.
Fixes: 2a1f4f1758 ("Revert "fdt_support: Use CONFIG_NR_DRAM_BANKS if defined"")
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
These functions are only called in this file that's why make them static
to keep static analysers happy.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This reverts commit 5e5745465c.
The reverted commit didn't support the scenario where there are less
DRAM banks in U-Boot than in Linux.
Also, it didn't introduce any new functionality, only limitaion.
User could just increase MEMORY_BANKS_MAX if it's too small.
Reviewed-by: Simon Glass <sjg@chromium.org>
The second argument of fdt_fixup_mtdparts() is an opaque pointer,
'void *node_info', hence callers can pass any pointer.
Obviously, fdt_fixup_mtdparts() expects 'struct node_info *'
otherwise, it crashes run-time.
Change the prototype so that it is compile-time checked.
Also, add 'const' qualifier to it so that callers can constify
the struct node_info arrays.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Memory banks with address 0 and size 0 are empty and should not be
passed to the OS via device tree.
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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>
