Commit graph

113 commits

Author SHA1 Message Date
Simon Glass
c3ec646dde fdt: Correct warning in fdt_setup_simplefb_node()
Adjust the printf() string to avoid a warning on sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-05-05 20:58:19 -06:00
Tim Harvey
08daa258e6 fdt: add new fdt_fixup_display function to configure display
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>
2015-04-22 14:39:06 +02:00
Tom Rini
97cdf64026 Merge branch 'sandbox' of git://git.denx.de/u-boot-x86 2014-12-04 09:24:05 -05:00
Hans de Goede
ffccb84c1a fdt: Fix regression in fdt_pack_reg()
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>
2014-12-01 08:23:32 -07:00
Simon Glass
e48f3741c3 sandbox: Fix warnings due to 64-bit printf() strings
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>
2014-11-26 20:25:39 -07:00
Tom Rini
f2ffe7da7f Merge branch 'master' of http://git.denx.de/u-boot-sunxi 2014-11-26 11:21:16 -05:00
Tom Rini
1fc4e6f486 Merge git://git.denx.de/u-boot-fdt 2014-11-26 11:21:14 -05:00
Hans de Goede
d4f495a881 fdt_support: Add a fdt_setup_simplefb_node helper function
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>
2014-11-25 13:38:46 +01:00
Masahiro Yamada
b41411954d linux/kernel.h: sync min, max, min3, max3 macros with Linux
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>
2014-11-23 06:48:30 -05:00
Simon Glass
933cdbb479 fdt: Try to use fdt_address_cells()/fdt_size_cells()
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>
2014-11-21 04:43:18 +01:00
Simon Glass
41f09bbe59 fdt: Change fdt_pack_reg() to static and fix types
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>
2014-11-21 04:43:18 +01:00
Simon Glass
a9e8e29101 fdt: Export the fdt_find_or_add_subnode() function
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>
2014-11-21 04:43:17 +01:00
Arnab Basu
f43b4356a7 fdt_support: Make of_bus_default_count_cells non static
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>
2014-09-25 08:36:19 -07:00
Arnab Basu
08df4a21c7 fdt_support: Move of_read_number to fdt_support.h
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>
2014-09-25 08:36:19 -07:00
Simon Glass
5bf58ccc8e fdt: Rename fdt_resize() to fdt_shrink_to_minimum()
Since libfdt now has an fdt_resize() function, we need to rename the
U-Boot one.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-08-09 11:17:03 -04:00
Masahiro Yamada
50babaf852 fdt_support: correct the return condition of fdt_initrd()
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>
2014-06-19 11:18:52 -04:00
Masahiro Yamada
f18295d383 fdt_support: fix an endian bug of fdt_initrd()
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>
2014-06-19 11:18:51 -04:00
Masahiro Yamada
739a01ed8e fdt_support: fix an endian bug of fdt_fixup_memory_banks
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>
2014-06-19 11:18:51 -04:00
Masahiro Yamada
f89d482fe5 fdt_support: add 'const' qualifier for unchanged argument
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>
2014-06-19 11:18:50 -04:00
Masahiro Yamada
972f2a8905 fdt_support: refactor fdt_fixup_stdout() function
- 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>
2014-06-19 11:18:49 -04:00
Masahiro Yamada
bc6ed0f9dc fdt_support: delete force argument of fdt_chosen()
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>
2014-06-19 11:18:48 -04:00
Masahiro Yamada
dbe963ae51 fdt_support: delete force argument of fdt_initrd()
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>
2014-06-19 11:18:47 -04:00
Masahiro Yamada
8edb21925e fdt_support: refactor with fdt_find_or_add_subnode helper func
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>
2014-06-19 11:18:46 -04:00
Masahiro Yamada
0613c57ce3 fdt_support: delete unnecessary DECLARE_GLOBAL_DATA_PTR
gd->bd is not used in fdt_support.c.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-06-19 11:18:44 -04:00
Dan Murphy
b1f49ab8c7 ARM: fdt support: Add usbethaddr as an acceptable MAC
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>
2014-06-19 11:18:39 -04:00
Alexander Graf
c48e686889 fdt_support: Add helper function to read "ranges" property
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>
2014-04-22 17:58:45 -07:00
Alexander Graf
94fb182cdf fdt_support: split fdt_getprop_u32_default
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>
2014-04-22 17:58:45 -07:00
Tom Rini
be6d426697 fdt_support.c: Correct linux,initrd-start/end setting
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>
2014-01-20 17:45:33 -05:00
Tom Rini
7f673c99c2 Merge branch 'master' of git://git.denx.de/u-boot-arm
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>
2014-01-10 10:56:00 -05:00
David Feng
f77a606a06 fdt_support: 64bit initrd start address support
Signed-off-by: David Feng <fenghua@phytium.com.cn>
2014-01-09 16:08:00 +01:00
Miao Yan
35940de1a6 common/fdt_support.c: avoid unintended return from fdt_fixup_memory_banks()
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>
2013-12-16 08:59:42 -05:00
Scott Wood
06503f16c3 mtd: fix warnings due to 64-bit partition support
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>
2013-10-15 20:03:59 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Stephen Warren
064d55f8bc fdt: remove unaligned access in fdt_fixup_ethernet()
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>
2013-06-07 14:17:01 -04:00
Doug Anderson
5e5745465c fdt_support: Use CONFIG_NR_DRAM_BANKS if defined
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>
2013-05-17 14:43:29 -04:00
Kim Phillips
8aa5ec6e16 common/fdt_support.c: sparse fixes
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>
2013-02-07 20:38:55 -05:00
Kim Phillips
12e06fe03f treewide: include libfdt_env.h before fdt.h
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>
2013-02-07 20:38:55 -05:00
Tom Wai-Hong Tam
096eb3f59b fdt: edid: Enable fdt_add_edid() function when CONFIG_LCD defined
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>
2012-12-11 13:17:35 -07:00
Marek Vasut
036036d79c serial: Remove CONFIG_SERIAL_MULTI from remaining sources
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>
2012-10-15 11:53:59 -07:00
Gabe Black
07e1278496 Fix constness of the fdt void pointer in fdt_getprop_u32_default
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>
2011-11-13 11:21:34 -05:00
Gabe Black
de16606ae3 Add some missing endian conversions in fdt_support.c
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>
2011-11-13 11:21:34 -05:00
Shengzhou Liu
2a523f5240 fdt: Add new fdt_set_node_status & fdt_set_status_by_alias helpers
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>
2011-10-18 00:36:55 -05:00
Simon Glass
925493582c sandbox: Use uintptr_t for 32/64-bit compatibility
This fixes a problems when building on some 64-bit machines.

Signed-off-by: Simon Glass <sjg@chromium.org>
2011-10-17 23:56:59 +02:00
Timur Tabi
50bf17bd15 fdt: update fdt_alloc_phandle to use fdt_get_phandle
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>
2011-10-15 09:35:09 -04:00
Timur Tabi
3c927cccdc fdt: check for fdt errors in fdt_create_phandle
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>
2011-10-15 09:35:00 -04:00
Kumar Gala
10aeabd186 fdt: Add new fdt_create_phandle helper
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>
2011-09-29 19:01:05 -05:00
Kumar Gala
f117c0f073 fdt: Rename fdt_create_phandle to fdt_set_phandle
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>
2011-09-29 19:01:05 -05:00
Gerald Van Baren
a8d2a75d72 fdt: introduce fdt_create_phandle()
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>
2011-07-14 21:43:45 -04:00
Timur Tabi
bb682001f1 fdt: introduce fdt_verify_alias_address() and fdt_get_base_address()
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>
2011-07-14 21:43:36 -04:00
Grant Likely
ce6b27a874 Fix off-by-one error in passing initrd end address via device tree
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>
2011-04-25 21:11:21 -04:00