Commit Graph

37 Commits

Author SHA1 Message Date
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
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
Chunhe Lan
8ddb10eae0 fdt: Add a do_fixup_by_path_string() function
The do_fixup_by_path_string() will set the specified node's property to the
value contained in "status". It would just be an inline wrapper for
do_fixup_by_path() that calls strlen on the argument.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
2011-10-15 09:34:49 -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
b3606f141e fdt: add prototype for fdt_increase_size()
Add a prototype for fdt_increase_size() so that anyone can call it.

Signed-off-by: Timur Tabi <timur@freescale.com>
2011-07-14 21:43:40 -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
John Rigby
a6bd9e83ab FDT: Add fixup support for multiple banks of memory
Add fdt_fixup_memory_banks and reimplement fdt_fixup_memory
using it.  Tested on OMAP3 beagle board with two banks of
memory.

Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Jerry Van Baren <vanbaren@cideas.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2010-10-18 22:50:53 +02:00
Anatolij Gustschin
beca5a5f5b fdt_support: support adding EDID property to FDT display nodes
Boards can pass display timing info for drivers using EDID
block. Provide common function to add board specific EDID
data to the device tree. Subsequent patch makes use of this
functionality.

Detailed timing descriptor data from EDID is used for
programming the display controller. This is currently
implemented on the Linux side by the fsl-diu-fb frame
buffer driver and it is documented there in
Documentation/powerpc/dts-bindings/fsl/diu.txt.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
2010-10-12 21:05:58 +02:00
Stefan Roese
8a805df136 ppc4xx/fdt/flash: Change fdt_fixup_nor_flash_node() to not rely on cs size
This patch changes the behaviour of the fdt_fixup_nor_flash_node()
function. Now it doesn't patch the size of the "reg" property with the
chip-select size, but with the size returned from the new function
flash_get_bank_size(). This function will return per weak default the
flash size of the bank (bank = chip-select numer) detected by the flash
driver. If this does not fit your needs, this function may be overridden
by a board specific one.

For this the parameters needed to be changed. So I intentionally squashed
the PPC4xx stuff using this routine into this patch. Otherwise it would
not be git-bisectable anymore.

The board specific function for the AMCC/APM Ebony eval board is now
included in this patch version.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Detlev Zundel <dzu@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
Cc: Wolfgang Denk <wd@denx.de>
2010-09-23 08:49:49 +02:00
Kumar Gala
b4b847e951 fdt: Add function to alloc phandle values
If we are creating reference (handles) to nodes in a device tree we need
to first create a new phandle in node and this needs a new phandle
value.  So we search through the whole dtb to find the max phandle value
and return the next greater value for a new phandle allocation.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2010-07-26 13:07:56 -05:00
Kumar Gala
75e73afd57 fdt: Add fdt_node_offset_by_compat_reg helper
Given a compatible string and physical address try and find a node that
matches.  This is useful when we want to find a specific device node to
update (for example if we have multiple PCI nodes we can use the
physical address to distinguish them when trying to update the device
tree).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2010-07-20 04:40:06 -05:00
Kumar Gala
a0342c0804 fdt: Add fdt_translate_address to convert reg node to cpu phys addr
This code is extracted out of the Linux Kernel code from
arch/powerpc/kernel/prom_parse.c.

We maintain some of the same structure to support multiple bus types even
though we only have one in the current code.  In the future we might want
to translate across a PCI bus and thus it will be easier to add that
functionality back in.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2010-07-20 04:40:00 -05:00
Kim Phillips
929a213830 powerpc/8xxx: Distinguish between incompatible SEC h/w types
CONFIG_SYS_FSL_SEC_COMPAT is set to 2 for the SEC 2.x and SEC 3.x.
Parts with newer SEC h/w versions will increment the number to
accomodate incompatible code changes.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-16 10:55:07 -05:00
Kumar Gala
49b97d9c8e fdt: Add fdt_del_node_and_alias helper
Add a helper function that given an alias will delete both the node
the alias points to and the alias itself

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2010-04-07 00:08:18 -05:00
Anatolij Gustschin
3c950e2ebf fdt_support: add partitions fixup in mtd node
Allow overwriting defined partitions in the device tree blob
using partition info defined in the 'mtdparts' environment
variable.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Gerald Van Baren <vanbaren@cideas.com>
2010-03-21 22:44:59 +01:00
Stefan Roese
30d45c0d3e fdt: Add fdt_fixup_nor_flash_size() to fixup NOR FLASH size in dtb
This function can be used to update the size in the "reg" property
of the NOR FLASH device nodes. This is necessary for boards with
non-fixed NOR FLASH sizes.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Wolfgang Denk <wd@denx.de>
2009-10-23 15:55:23 +02:00
Peter Tyser
0f89860494 83xx: Replace CONFIG_MPC83XX with CONFIG_MPC83xx
Use the standard lowercase "xx" capitalization that other Freescale
architectures use for CPU defines to prevent confusion and errors

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2009-06-12 20:47:17 +02:00
Kumar Gala
8ab451c46b fdt: Added helper to set PCI dma-ranges property
Added fdt_pci_dma_ranges() that parses the pci_region info from the
struct pci_controller and populates the dma-ranges based on it.

The max # of windws/dma-ranges we support is 3 since on embedded
PowerPC based systems this is the max number of windows.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
2008-10-24 17:34:57 -05:00
Kumar Gala
3bed2aaf2d fdt: Add fdt_getprop_u32_default helpers
Add helper functions to return find a node and return it's property
or a default value.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
2008-10-24 17:34:52 -05:00
Heiko Schocher
56844a22b7 powerpc: Fix bootm to boot up again with a Ramdisk
Commit 2a1a2cb6 didnt remove the dummy mem reservation in fdt_chosen,
and this stopped Linux from booting with a Ramdisk. This patch fixes
this, by deleting the useless dummy mem reservation.

When booting with a Ramdisk, a fix offset FDT_RAMDISK_OVERHEAD is now
added to of_size, so we dont need anymore a dummy mem reservation.

I measured the value of FDT_RAMDISK_OVERHEAD on a MPC8270 based
system (=0x44 bytes) and rounded it up to 0x80).

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2008-09-13 02:03:38 +02:00
Kumar Gala
2a1a2cb6e2 fdt: refactor initrd related code
Created a new fdt_initrd() to deal with setting the initrd properties
in the device tree and fixing up the mem reserve.  We can use this
both in the choosen node handling and lets us remove some duplicated
code when we fixup the initrd info in bootm on PPC.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-26 23:45:20 +02:00
Kumar Gala
3082d2348c fdt: refactor fdt resize code
Move the fdt resizing code out of ppc specific boot code and into
common fdt support code.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-26 23:43:36 +02:00
Kumar Gala
54f9c86691 bootm: Set working fdt address as part of the bootm flow
Set the fdt working address so "fdt FOO" commands can be used as part
of the bootm flow.  Also set an the environment variable "fdtaddr"
with the value.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-26 23:37:54 +02:00
Kumar Gala
ba37aa0328 fdt: rework fdt_fixup_ethernet() to use env instead of bd_t
Move to using the environment variables 'ethaddr', 'eth1addr', etc..
instead of bd->bi_enetaddr, bi_enet1addr, etc.

This makes the code a bit more flexible to the number of ethernet
interfaces.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-21 02:07:43 +02:00
Kim Phillips
6b70ffb9d1 fdt: add crypto node handling for MPC8{3, 5}xxE processors
Delete the crypto node if not on an E-processor.  If on 8360 or 834x family,
check rev and up-rev crypto node (to SEC rev. 2.4 property values)
if on an 'EA' processor, e.g. MPC8349EA.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2008-07-14 17:01:29 -05:00
Anton Vorontsov
18e69a35ef 83xx/fdt_support: let user specifiy FSL USB Dual-Role controller role
Linux understands "host" (default), "peripheral" and "otg" (broken).
Though, U-Boot doesn't restrict dr_mode variable to these values (think
of renames in future).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2008-03-25 19:19:39 -05:00
Jerry Van Baren
43ddd9c820 Remove deprecated CONFIG_OF_HAS_UBOOT_ENV and CONFIG_OF_HAS_BD_T
These defines embedded the u-boot env variables and/or the bd_t structure
in the fdt blob.  The conclusion of discussion on the u-boot email list
was that embedding these in the fdt blob is not useful: there are better
ways of passing the data (in fact, the fdt blob itself replaces the
bd_t struct).

The only board that enables these is the stxxtc and they don't appear
to be used by linux.

Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
2008-03-26 00:22:39 +01:00
Timur Tabi
b8ec238503 85xx: add ability to upload QE firmware
Define the layout of a binary blob that contains a QE firmware and instructions
on how to upload it.  Add function qe_upload_firmware() to parse the blob and
perform the actual upload.  Add command-line command "qe fw" to take a firmware
blob in memory and upload it.  Update ft_cpu_setup() on 85xx to create the
'firmware' device tree node if U-Boot has uploaded a firmware.  Fully define
'struct rsp' in immap_qe.h to include the actual RISC Special Registers.

Signed-off-by: Timur Tabi <timur@freescale.com>
2008-01-09 16:28:12 -06:00
Matthias Fuchs
22fb2246df Add fdt_find_and_setprop() to fdt_support.h
fdt_find_and_setprop() is used by several 4xx boards and it's
missing in the appropriate header. This patch eliminates a
warning when building U-Boot for such boards.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Acked-by: Stefan Roese <sr@denx.de>
2008-01-08 15:03:06 -05:00
Kumar Gala
3c9272813f Add common memory fixup function
Add the function fdt_fixup_memory() to fixup the /memory node of the fdt

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-07 20:51:25 -05:00
Kumar Gala
9eb77cea1f Add additional fdt fixup helper functions
Added the following fdt fixup helpers:
 * do_fixup_by_prop{_u32} - Find matching nodes by property name/value
 * do_fixup_by_compat{_u32} - Find matching nodes by compat

The _u32 variants work the same only the property they are setting
is know to be a 32-bit integer instead of a byte buffer.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-11-21 15:11:58 -06:00
Kumar Gala
ab544633ab Add fdt_fixup_ethernet helper to set mac addresses
Added a fixup helper that uses aliases to set mac addresses
in the device tree based on the bd_t

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-11-21 15:08:56 -06:00
Kumar Gala
e93becf80d Move do_fixup* for libfdt into common code
Moved the generic fixup handling code out of cpu/mpc5xxx and cpu/mpc8260
into common/fdt_support.c and renamed:

do_fixup()	-> do_fixup_by_path()
do_fixup_u32() 	-> do_fixup_by_path_u32()

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-11-21 14:01:49 -06:00
Gerald Van Baren
e125a2ffc2 Call ft_board_setup() from the bootm command.
In the patch titled "Create new fdt boardsetup command..." I removed the
call to ft_board_setup() from the routine fdt_chosen(), but I forgot
to add a direct call back into cmd_bootm.c

This fixes the oversight by adding the direct call to the bootm command.

Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
2007-08-10 19:21:36 -04:00
Gerald Van Baren
64dbbd40c5 Moved fdt command support code to fdt_support.c
...in preparation for improving the bootm command's handling of fdt blobs.
Also cleaned up some coding sloppiness.
2007-04-06 14:19:43 -04:00