linux-toradex.git/arch/powerpc/boot/dcr.h, branch v3.2

powerpc/405ex: provide necessary fixup function to support cuImage

2009-08-31T13:20:55+00:00

For cuImage format it's necessary to provide clock fixups since u-boot will
not pass necessary clock frequency into the dtb included into cuImage so we
implement the clock fixups as defined in the technical documentation for the
board and update header file with the basic register definitions.

Signed-off-by: Tiejun Chen 
Signed-off-by: Josh Boyer

[POWERPC] 4xx: Add 405GPr and 405EP support in boot wrapper

2008-01-08T13:58:09+00:00

This patch adds support for 405GPr processors with optional
new mode strapping. ibm405gp_fixup_clocks() can now be used
for 405GP and 405GPr CPUs.

This is in preparation of porting the cpci405 platform support
from arch/ppc to arch/powerpc.

This patch also adds ibm405ep_fixup_clocks() to support
405EP CPUs from the boot wrapper.

Signed-off-by: Matthias Fuchs 
Signed-off-by: Josh Boyer

[POWERPC] 4xx: Rework clock probing in boot wrapper

2007-12-23T19:14:48+00:00

This reworks the boot wrapper library function that probes
the chip clocks. Better separate the base function that is
used on 440GX,SPe,EP,... from the uart fixups as those need
different device-tree path on different processors.

Also, rework the function itself based on the arch/ppc code
from Eugene Surovegin which I find more readable, and which
handles one more bypass case. Also handle the subtle difference
between 440EP/EPx and 440SPe/GX, on the former, PerClk is derived
from the PLB clock while on the later, it's derived from the OPB.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Josh Boyer

[POWERPC] 4xx: Add CPR0 accessors to boot wrapper

2007-12-23T19:14:35+00:00

This adds macros to the boot wrapper to access the CPR
registers from the boot wrappers.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Josh Boyer

[POWERPC] 4xx: Adds decoding of 440SPE memory size to boot wrapper library

2007-12-23T19:14:13+00:00

This adds a function to the bootwrapper 4xx library to decode memory
size on 440SPE processors.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Josh Boyer

[POWERPC] Walnut zImage wrapper

2007-09-07T12:51:44+00:00

Add zImage wrapper for walnut board

Signed-off-by: Josh Boyer 
Acked-by: David Gibson

[POWERPC] Bamboo zImage wrapper

2007-08-20T12:30:32+00:00

Add a bootwrapper for the AMCC 440EP Bamboo Eval board.  This also adds a
common fixup_clock function for all 440EP(x) chips.

Signed-off-by: Josh Boyer 
Acked-by: David Gibson

[POWERPC] 4xx bootwrapper reworks

2007-08-20T12:28:30+00:00

Make the fixup_memsize function common for all of 4xx as several chips share
the same SDRAM controller.  Also add functions to reset 40x chips and quiesce
the ethernet.

Signed-off-by: Josh Boyer

[POWERPC] Derive ebc ranges property from EBC registers

2007-06-14T12:30:16+00:00

In the device tree for Ebony, the 'ranges' property in the node for
the EBC bridge shows the mappings from the chip select / address lines
actually used for the EBC peripherals into the address space of the
OPB.  At present, these mappings are hardcoded in ebony.dts for the
mappings set up by the OpenBIOS firmware when it configures the EBC
bridge.

This replaces the hardcoded mappings with code in the zImage to
read the EBC configuration registers and create an appropriate ranges
property based on them.  This should make the zImage and kernel more
robust to changes in firmware configuration.  In particular, some of
the Ebony's DIP switches can change the effective address of the Flash
and other peripherals in OPB space.  With this patch, the kernel will
be able to cope with at least some of the possible variations.

Signed-off-by: David Gibson 
Signed-off-by: Paul Mackerras

[POWERPC] Support for the Ebony 440GP reference board in arch/powerpc

2007-05-08T04:47:32+00:00

This adds platform support code for the Ebony (440GP) evaluation
board.  This includes both code in arch/powerpc/platforms/44x for
board initialization, and zImage wrapper code to correctly tweak the
flattened device tree based on information from the firmware.  The
zImage supports both IBM OpenBIOS (aka "treeboot") and old versions of
uboot which don't support a flattened device tree.

Signed-off-by: David Gibson 
Signed-off-by: Paul Mackerras