Merge branch 'for-next/rpi'

ppc: mpc85xx: build directives ...

Add the Kconfig and Makefile directives to build barebox
for the GEIP DA923RC board.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: DA923RC: add board support ...

Add the GEIP DA923RC board support. This includes core
files as well as defconfig and make files.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: mpc85xx: enable DDR driver ...

The use of the DDR driver as well as early I2C support is
enabled for board initialising their memory through SPD EEPROM
data.

A SOC specific function returning the DDR bus frequency
is added for the DDR driver to translate DDR timings to
register values.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: mpc85xx: define Ethernet port count ...

Because the port count is different between the MPC8544 and
existing CPU support, the Ethernet port count is defined on
a per CPU basis.
Accordingly, the TBI PHY initialisation code is updated.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: mpc85xx: mpc8544 support ...

Definitions are added to support the mpc8544 sOC.

The function returning the I2C bus frequency is updated
to take into account the mpc8544 specific clock ratio.
A mininal GPIO API is added to enable and set the GPIO
out pins.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: Add a context pointer to fixup functions ...

If drivers want to fixup their specific instance they need some context
to know which instance they have to fixup.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

console: factorise function to get the first enabled console ...

rename it to console_get_first_active

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: bootm: relocate fdt to valid boot memory ...

For the MPC85xx family of SOCs Linux expects any boot firmware
information to be passed in the first 64MiB of memory. This adds support
to ensure that the device tree is relocated to a valid location if it is
outside that address range.

For the other SOC family currently present in the ppc architecture, the
default is not to relocate as at Linux startup the virtual address
equals the physical address.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/powerpc'

ppc: add and update device tree fixup functions ...

This adds support for populating derived properties of the mpc85xx SOC
which are not typically included in the dtb directly.

This update is based on U-Boot code from common/fdt_support.c
and arch/powerpc/cpu/mpc85xx/fdt.c - version git-2b26201.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Set model and hostname at boardlevel ...

With multiboard support the compiletime generated BOARDINFO string
gets more and more meaningless. This removes it from Kconfig and
replaces it with a variable that can be set at boardlevel.

Also many boards have a standard setting for the hostname in the
environment. This patch also moves the standard to C code by calling
barebox_set_hostname().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

P2020RDB: map boot flash. ...

The chip select 0 (boot flash) registers are updated by the board
specific code as it is not done by the cpu early initialisation
any more.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mpc85xx: remove local bus initialisation ...

The early initialisation of chip select 0 (boot flash) is removed
from cpu initialisation. This removes the dependency on board
base address definition.

Consequently, cpu_init_f is not called in the start-up code but
added to the init call list as cpu_init_r. Also the file
arch/ppc/mach-mpc85xx/fsl_lbc.c is deleted.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc ddr-8xxx: misplaced parenthesis ...

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next-manual/oftree-linux-sync'

ppc 85xx: early I2C support ...

Early I2C support is introduced to read SPD data from memory
modules prior to the loading of the I2C driver.

This code is based on the equivalent file fsl_i2c.c in directory
drivers/i2c from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc 8xxx: core DDR driver functions ...

These files are the driver interface to handle the memory
initialisation from reading the SPD data to writing the memory
controller registers.

This code is based on the equivalent files main.c in directory
arch/powerpc/cpu/mpc8xxx/ddr and ddr-gen2.c in directory
arch/powerpc/cpu/mpc85xx. Both are from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppx 8xxx: DDR registers value calculation ...

The functions in this file calculate and store the value for each
register of the memory controller.

This code is based on the equivalent file in directory
arch/powerpc/cpu/mpc8xxx/ddr from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc 8xxx: DDR utility and memory options ...

This commit adds functions to calculate clock cycles, configure the
LAW registers and populate board memory options.

This code is based on the equivalent files in directory
arch/powerpc/cpu/mpc8xxx/ddr from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc 8xxx: DIMM parameters calculation ...

This code calculates the DIMM characteritics i.e DIMM
organization parameters and timings for DDR2 memory based on
SPD data.

It also provides a function to find out the lowest common DIMM
parameters to be used for all DIMMs.

This code is based on the equivalent files in directory
arch/powerpc/cpu/mpc8xxx/ddr from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc 8xxx: DDR headers ...

Structures are defined to record the common DIMM parameters
and memory options on a per DIMM basis.

This code is based on the equivalent files in directory
arch/powerpc/cpu/mpc8xxx/ddr from U-Boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc asm: DDR headers ...

Definitions and structures have been added to record DIMM parameters
and configure memory options.

The code is based on the equivalent files in the directory
arch/powerpc/include/asm from U-boot version git-a71d45d.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

P2020RDB: update build configuration ...

Update the P2020RDB build configuration to enable useful development
commands.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: gianfar MDIO buses ...

This commit creates MDIO bus devices to separate the MDIO bus
abstraction from the Ethernet device initialisation.

It also updates the configuration of the P2020RDB ports.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

OF: base: sync of_find_node_by_path with linux OF API ...

Barebox of_find_node_by_path requires a node to be passed as start node
to start searching. Linux OF API does not pass this node and no current
user of it in barebox is passing anything else than the root node.
Therefore, we rename current function to of_find_node_by_path_from and
introduce a Linux OF API compatible of_find_node_by_path that always
passes the current root_node. Also, all current users of that function
are updated to reflect the API change.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc: remove strcasecmp/strncasecmp prototypes ...

ppc does not implement these, so remove the prototypes and use
the ones from include/linux/string.h

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/ppc'

ppc: update I/O accessors ...

The I/O accessors in_bexx, out_bexx, in_lexx and out_lexx are updated
to the latest Linux version.

The patch is tested on a MPC8544 based board and solved I/O access
issues on I2C devices.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ppc io.h: fix indentation ...

To prepare for an update of the I/O functions to the latest Linux
version, the indentation is fixed.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>