We calculate the full path of the current node using fdt_get_path which
takes a lot of time since libfdt has to iterate over the dtb several times.
Speed this up by creating and using a of_find_child function which does
not have to iterate over the whole tree but only over its direct children.
On an i.MX51 board this speeds up unflatten the tree from 60ms to 3.7ms.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The of_property command allows to modify/add/delete properties.
Parsing user input is based on U-Boot code with some fixes added
for catching invalid input.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of_new_node now takes the parent node and the name as argument and
creates a new node. This simplifies the caller and also makes the
function useful for others, so export it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a function to delete a property from the currently loaded
devicetree. Also export new_property as of_new_property.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This has several improvements for the oftree command:
- loading a devicetree (-l) and actually probing (-p) it now is separated
- the command now can dump the internal devicetree or a dtb given on the
command line.
- The -f option now actually frees the internal devicetree
With this the usage pattern for this command is:
oftree -l /env/oftree
oftree -d -n /sound
oftree -d /env/oftree
oftree -f
oftree -p
oftree -l -p /env/oftree
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This implements overlaying a currently loaded dtb with another dtb.
We used to return -EBUSY when a oftree is currently loaded. Instead
of doing this, check if a node already exists before creating a new
one. Similarly, if a property already exists, just overwrite the
value instead of creating a new property.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When an oftree is already specified use it. This lets the user
boot a kernel with an oftree he provided himself rather than
hardcoding the concatenated one.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
barebox_fdt should once become the pointer to the barebox internal
devicetree. Since barebox has its own internal devicetree format
this was never used. remove it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We already have support for unflattening the devicetree. This patch
adds support for converting it back to a dtb.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The process of unflatten the device tree is known from the kernel,
so rename the function, because that's what it does.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- Add missing prototype for of_free()
- When root node is freed set root_node to NULL
- (re)scan aliases after freeing a node. This is necessary because
the freed node may be an alias or point to an alias
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With bootm of_fix_tree() will already be called from the generic bootm
code, so do not do this again in the Android image handler.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
When of_find_node_by_path is called with a non existing path we
return just some node. return NULL instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently the bootm code uses of_fix_tree to apply the fixups
to the devicetree given on the command line. This function assumes
that there is enough space for the fixups available. Also on ARM
we have to make sure the tree does not cross 1Mib boundaries.
This patch moves the space allocation and alignment ensurance
to of_get_fixed_tree and uses it in bootm. This is the first
step for making of_get_fixed_tree the single point of devicetree
handling in barebox.
of_get_fixed_tree now takes an argument of the input fdt. If it is
given, this one is used, otherwise an internal oftree is used which
will be created in subsequent patches.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The am33xx hsmmc controller is actually a omap4 type controller which
means that it has a 0x100 offset in the registers.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds the missing ubiformat.c file missing from:
commit 5a29d4aea7
Author: Wolfram Sang <w.sang@pengutronix.de>
Date: Mon Dec 17 16:48:33 2012 +0100
commands: add ubiformat
Imported from mtd-utils and stripped down to needed functionality.
Based on an older version (1.4.5.) since the newer do use MEMWRITE
interfaces which we don't have in barebox (yet).
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Both include/string.h and include/stringlist.h define the c preprocessor macro
__STRING_H. This leads to a compile time error, in case both files are
(indirectly) included.
Rename the macro to __STRINGLIST_H in stringlist.h.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Only the OMAP4 has a register offset of 0x100 in the register space. Fix
this by using the device id mechanism. This became broken when the device
register convenience functions were introduced.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will allow to dump all pin configuration in a nice table
and if the bank/pin is specified the pin details
barebox@Atmel at91sam9x5-ek:/
Pin PIOA PIOB PIOC PIOD
0: [gpio] set [periph A] [gpio] set [periph A]
1: [periph A] [periph A] [gpio] set [periph A]
2: [gpio] set [periph A] [gpio] set [periph A]
3: [gpio] set [periph A] [gpio] set [periph A]
4: [gpio] set [periph A] [gpio] set [gpio] clear
5: [gpio] set [periph A] [gpio] set [gpio] set
6: [gpio] set [periph A] [gpio] set [periph A]
7: [gpio] set [periph A] [gpio] set [periph A]
8: [gpio] set [gpio] set [gpio] set [periph A]
9: [periph A] [periph A] [gpio] set [periph A]
10: [periph A] [periph A] [gpio] set [periph A]
11: [periph A] [gpio] set [gpio] set [periph A]
12: [periph A] [gpio] set [gpio] set [periph A]
13: [periph A] [gpio] clear [gpio] set [periph A]
14: [gpio] set [gpio] clear [gpio] set [gpio] set
15: [periph A] [gpio] set [gpio] set [gpio] set
16: [periph A] [gpio] set [gpio] clear [periph A]
17: [periph A] [gpio] set [gpio] set [periph A]
18: [periph A] [gpio] set [gpio] set [periph A]
19: [periph A] [periph A] [gpio] set [gpio] set
20: [periph A] [periph A] [gpio] clear [gpio] set
21: [gpio] set [periph A] [gpio] clear [gpio] clear
22: [gpio] set [periph A] [gpio] set [periph A]
23: [gpio] set [periph A] [gpio] set [periph A]
24: [gpio] set [periph A] [gpio] set [periph A]
25: [gpio] set [periph A] [gpio] set [periph A]
26: [gpio] set [periph A] [gpio] set [periph A]
27: [gpio] clear [periph A] [gpio] set [periph A]
28: [gpio] set [periph A] [gpio] clear [periph A]
29: [gpio] set [periph A] [gpio] set [periph A]
30: [gpio] set [periph A] [gpio] set [periph A]
31: [gpio] set [periph A] [gpio] set [periph A]
barebox@Atmel at91sam9x5-ek:/
pioA27 configuration
[gpio] clear
multidrive = disable
pullup = disable
degitch = disable
debounce = disable
pulldown = enable
schmitt trigger = enable
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
to select the smc and timer for at91sam9 soc
This will allow to simplify the Makefile
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will allow to support multiple arch
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
and then register a device
The code is take from linux
drop AT91_BASE_SYS for dbgu
factorise the soc type in the Kconfig but keep the ARCH_ so far
as the device code have the same function accross soc which for now does not
allow us to compile soc together
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
add non AT91_SYS_BASE offset base address define
This will prepare for multi arch support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
so we can drop AT91_BASE_SYS too
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
So we can ensure a gpio is not used for something else
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as d1 pioB18 is used for the one wire too
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Steffen Trumtrar
Jean-Christophe PLAGNIOL-VILLARD