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We might want to access data stored onto one wire EEPROMs.
Create a framework to provide a consistent API.
Signed-off-by: Maxime Ripard <[email protected]>
[[email protected]: reworked patch]
Signed-off-by: Eugen Hristev <[email protected]>
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We might want to use 1-Wire devices connected on boards such as EEPROMs in
U-Boot.
Provide a framework to be able to do that.
Signed-off-by: Maxime Ripard <[email protected]>
[[email protected]: reworked]
Signed-off-by: Eugen Hristev <[email protected]>
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This is file system generic loader which can be used to load
the file image from the storage into target such as memory.
The consumer driver would then use this loader to program whatever,
ie. the FPGA device.
Signed-off-by: Tien Fong Chee <[email protected]>
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Some devices offer a text-based OSD (on-screen display) that can be
programmatically controlled (i.e. text displayed on).
Add a uclass to support such devices.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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This adds support for the ARM PL022 SPI controller for the standard
variant (0x00041022) which has a 16bit wide and 8 locations deep TX/RX
FIFO.
A few parts were borrowed from the Linux kernel driver.
Cc: Armando Visconti <[email protected]>
Cc: Vipin Kumar <[email protected]>
Signed-off-by: Quentin Schulz <[email protected]>
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The comment of child_pre_probe, one of the 'struct uclass_driver'
members, is currently missing.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Adds ofnode_by_prop_value() to search for nodes with a given property
and value, an ofnode version of fdt_node_offset_by_prop_value().
Signed-off-by: Jens Wiklander <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Also add a 'drv' parameter to filter the children to remove/unbind.
Exporting those functions is a preparatory work for the addition of the
bind/unbind commands.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
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Also add device_find_global_by_ofnode() that also find a device based on
the OF node, but doesn't probe the device.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
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This function is the reciprocal of uclass_find_device().
It will be used to print the index information in dm tree dump.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
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Add test infrastructure and tests for the AXI uclass.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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Add a uclass for AXI (Advanced eXtensible Interface) busses, and a
driver for the gdsys IHS AXI bus on IHS FPGAs.
Signed-off-by: Mario Six <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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We don't have the live-tree version of fdtdec_get_pci_vendev().
This adds the API.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Correct typos in the comment block of uclass_first/next_device_check().
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This is a uclass for Shared memory manager drivers.
A Shared Memory Manager driver implements an interface for allocating
and accessing items in the memory area shared among all of the
processors.
Signed-off-by: Ramon Fried <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
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Add a way to decode a memory region, including the memory type (sram or
sdram) and its start address and size.
Signed-off-by: Simon Glass <[email protected]>
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Update this function to take an ofnode so that it can work with livetree.
Signed-off-by: Simon Glass <[email protected]>
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Add a new device_bind_ofnode() function which can bind a device given its
ofnode. This allows binding devices more easily with livetree nodes.
Signed-off-by: Simon Glass <[email protected]>
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Add an ofnode_by_compatible() to allow iterating through ofnodes with a
given compatible string.
Signed-off-by: Simon Glass <[email protected]>
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These functions are missing comments. Add some.
Signed-off-by: Simon Glass <[email protected]>
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Tidy up three return-value errors.
Signed-off-by: Simon Glass <[email protected]>
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We have a 32-bit version of this function. Add a 64-bit version as well so
we can easily read 64-bit ints from the device tree.
Signed-off-by: Simon Glass <[email protected]>
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Signed-off-by: Álvaro Fernández Rojas <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
Signed-off-by: Daniel Schwierzeck <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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device_is_compatible() takes udevice, but there is no such a helper
that takes ofnode.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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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 <[email protected]>
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Commit 286ede6 ("drivers: core: Add translation in live tree case") made
dev_get_addr always use proper bus translations for addresses read from
the device tree. But this leads to problems with certain busses, e.g.
I2C busses, which run into an error during translation, and hence stop
working.
It turns out that of_translate_address() and fdt_translate_address()
stop the address translation with an error when they're asked to
translate addresses for busses where #size-cells == 0 (comment from
drivers/core/of_addr.c):
* Note: We consider that crossing any level with #size-cells == 0 to mean
* that translation is impossible (that is we are not dealing with a value
* that can be mapped to a cpu physical address). This is not really specified
* that way, but this is traditionally the way IBM at least do things
To fix this case, we check in both the live-tree and non-live tree-case,
whether the bus of the device whose address is about to be translated
has size-cell size zero. If this is the case, we just read the address
as a plain integer and return it, and only apply bus translations if the
size-cell size if greater than zero.
Signed-off-by: Mario Six <[email protected]>
Signed-off-by: Martin Fuzzey <[email protected]>
Reported-by: Martin Fuzzey <[email protected]>
Fixes: 286ede6 ("drivers: core: Add translation in live tree case")
Reviewed-by: Simon Glass <[email protected]>
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Add api for who can not get phandle from a device property.
Signed-off-by: Kever Yang <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
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Contains all the pfe header files.
Signed-off-by: Calvin Johnson <[email protected]>
Signed-off-by: Anjaneyulu Jagarlmudi <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
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We need to get ofnode from a phandle, add interface to support
both live dt and fdt.
Signed-off-by: Kever Yang <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
Tested-by: Klaus Goger <[email protected]>
Signed-off-by: Philipp Tomsich <[email protected]>
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The Rockchip video drivers need to walk the ofnode-parrents to find
an enclosing device that has a UCLASS_DISPLAY driver bound. This
adds a ofnode_get_parent()-function that returns the parent-node.
Signed-off-by: Philipp Tomsich <[email protected]>
Tested-by: Klaus Goger <[email protected]>
Reviewed-by: Anatolij Gustschin <[email protected]>
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%s/Indentiies/Identifies/g
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Each uclass has a driver name which we can use to look up the uclass. This
is useful for logging, where the uclass ID is used as the category.
Add a function to handle this, as well as a test.
Signed-off-by: Simon Glass <[email protected]>
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We are switching to a model where a serial device doesn't even get probed when
it's not muxed properly, so we don't need device specific disabling
functionality anymore.
Signed-off-by: Alexander Graf <[email protected]>
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There are some typos in the documentation of some functions in read.h;
fix those.
Signed-off-by: Mario Six <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This patch provides
* a uclass for EFI drivers
* a EFI driver for block devices
For each EFI driver the uclass
* creates a handle
* adds the driver binding protocol
The uclass provides the bind, start, and stop entry points for the driver
binding protocol.
In bind() and stop() it checks if the controller implements the protocol
supported by the EFI driver. In the start() function it calls the bind()
function of the EFI driver. In the stop() function it destroys the child
controllers.
The EFI block driver binds to controllers implementing the block io
protocol.
When the bind function of the EFI block driver is called it creates a
new U-Boot block device. It installs child handles for all partitions and
installs the simple file protocol on these.
The read and write functions of the EFI block driver delegate calls to the
controller that it is bound to.
A usage example is as following:
U-Boot loads the iPXE snp.efi executable. iPXE connects an iSCSI drive and
exposes a handle with the block IO protocol. It calls ConnectController.
Now the EFI block driver installs the partitions with the simple file
protocol.
iPXE uses the simple file protocol to load Grub or the Linux Kernel.
Signed-off-by: Heinrich Schuchardt <[email protected]>
[agraf: add comment on calloc len]
Signed-off-by: Alexander Graf <[email protected]>
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dev_read_u32_default() always returns something even when the property
is missing. So, it is impossible to do nothing in the case. One
solution is to use ofnode_read_u32() instead, but adding dev_read_u32()
will be helpful.
BTW, Linux has an equvalent function, device_property_read_u32();
it is clearer that it reads a property. I cannot understand the
behavior of dev_read_u32() from its name.
Signed-off-by: Masahiro Yamada <[email protected]>
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Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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Sync with Linux commit 30a7acd573899fd8b("Linux 4.15-rc6")
to use enum pin_config_param.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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%s/falback/fallback/g
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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struct driver_info has no field 'flags'.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Fixes: 4984de2baaa ("dm: core: Add ofnode to represent device tree nodes")
Cc: Simon Glass <[email protected]>
Signed-off-by: Baruch Siach <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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As we discussed before in ML, dm_dbg() causes undefined reference
error if #define DEBUG is added to users, but not drivers/core/util.c
We do not need this macro because we can use pr_debug() instead, and
it is pretty easy to enable it for the DM core by using ccflags-y.
Signed-off-by: Masahiro Yamada <[email protected]>
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Many drivers had started to use dev_err, dev_info, etc. for log
functions. Currently, we are relying on <linux/compat.h>, but I
guess the best home is <dm/device.h>, taking into account that
Linux defines them in <linux/device.h>.
For now, I am leaving the ones in <linux/compat.h> because lots of
Linux-originated code uses dev_*(), but the first argument is not
struct udevice, so we need to ignore the bogus argument. More
efforts are needed to iron out the issues.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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dev_read_string_count() is used to get the number of strings in a
stringlist.
dev_read_string_index() is used to get a string in the stringlist based on
its position in the list.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
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The dev_read_addr_ptr() mimics the behaviour of the devfdt_get_addr_ptr(),
retrieving the first address of the node's reg-property and returning
it as a pointer (or NULL on failure).
Signed-off-by: Philipp Tomsich <[email protected]>
Acked-by: Philipp Tomsich <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Currently, all fixed-clock declared in "clocks" node in device tree
can be binded by clk_fixed_rate.c driver only if each of them have
the "simple-bus" compatible string.
This constraint has been invoked here [1].
This patch offers a solution to avoid adding "simple-bus" compatible
string to nodes that are not busses.
[1] https://patchwork.ozlabs.org/patch/558837/
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add a convenience macro to iterate over subnodes of a node. Make use of
this where appropriate in the code.
Signed-off-by: Simon Glass <[email protected]>
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This converts the IDE driver to driver model so that block read and
write are fully functional.
Fixes: b7c6baef ("x86: Convert MMC to driver model")
Reported-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Heinrich Schuchardt <[email protected]>
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Linux supports platform_get_resource_byname() to look up a resource
by name.
We want a similar helper. It is useful when a device node has named
register regions.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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