linux-toradex.git/arch/powerpc/platforms/powermac/setup.c, branch v4.2.7

powerpc/powermac: Move controller ops from ppc_md to controller_ops

2015-04-11T10:49:15+00:00

This moves the Power Mac platform to use the pci_controller_ops
structure rather than ppc_md for PCI controller operations.

Signed-off-by: Daniel Axtens 
Signed-off-by: Michael Ellerman

powerpc: dart_iommu: optionally populate controller_ops on init

2015-04-11T10:49:14+00:00

If a pci_controller_ops struct is provided to iommu_init_early_dart,
populate that with the DMA setup ops, rather than ppc_md. If NULL is
provided, populate ppc_md as before.

This also patches the call sites for Maple and Power Mac to pass
NULL, so existing behaviour is preserved.

The benefit of making this optional is that it means we don't have
to change dart, Maple and Power Mac over to the controller_ops
system in one fell swoop.

Signed-off-by: Daniel Axtens 
Signed-off-by: Michael Ellerman

powerpc/powermac: move pmac_pci_probe_mode from setup.c to pci.c

2015-04-11T10:49:10+00:00

Signed-off-by: Daniel Axtens 
Signed-off-by: Michael Ellerman

powerpc: Convert power off logic to pm_power_off

2014-11-03T01:12:51+00:00

The generic Linux framework to power off the machine is a function pointer
called pm_power_off. The trick about this pointer is that device drivers can
potentially implement it rather than board files.

Today on powerpc we set pm_power_off to invoke our generic full machine power
off logic which then calls ppc_md.power_off to invoke machine specific power
off.

However, when we want to add a power off GPIO via the "gpio-poweroff" driver,
this card house falls apart. That driver only registers itself if pm_power_off
is NULL to ensure it doesn't override board specific logic. However, since we
always set pm_power_off to the generic power off logic (which will just not
power off the machine if no ppc_md.power_off call is implemented), we can't
implement power off via the generic GPIO power off driver.

To fix this up, let's get rid of the ppc_md.power_off logic and just always use
pm_power_off as was intended. Then individual drivers such as the GPIO power off
driver can implement power off logic via that function pointer.

With this patch set applied and a few patches on top of QEMU that implement a
power off GPIO on the virt e500 machine, I can successfully turn off my virtual
machine after halt.

Signed-off-by: Alexander Graf 
[mpe: Squash into one patch and update changelog based on cover letter]
Signed-off-by: Michael Ellerman

powerpc: Remove powerpc specific cmd_line

2014-10-02T07:33:55+00:00

There is no need for yet another copy of the command line, just
use boot_command_line like everyone else.

Signed-off-by: Anton Blanchard 
Signed-off-by: Michael Ellerman

Disintegrate asm/system.h for PowerPC

2012-03-28T17:30:02+00:00

Disintegrate asm/system.h for PowerPC.

Signed-off-by: David Howells 
Acked-by: Benjamin Herrenschmidt 
cc: linuxppc-dev@lists.ozlabs.org

powerpc/powermac: Add missing of_node_put

2011-11-25T03:11:27+00:00

np is initialized to the result of calling a function that calls
of_node_get, so of_node_put should be called before the pointer is dropped.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression e,e1,e2;
@@

* e = \(of_find_node_by_type\|of_find_node_by_name\)(...)
  ... when != of_node_put(e)
      when != true e == NULL
      when != e2 = e
  e = e1
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Benjamin Herrenschmidt

powerpc: add export.h to files making use of EXPORT_SYMBOL

2011-10-31T23:30:37+00:00

With module.h being implicitly everywhere via device.h, the absence
of explicitly including something for EXPORT_SYMBOL went unnoticed.
Since we are heading to fix things up and clean module.h from the
device.h file, we need to explicitly include these files now.

Signed-off-by: Paul Gortmaker

powerpc: Move free_initmem to common code

2011-06-30T05:28:05+00:00

The free_initmem function is basically duplicated in mm/init_32,
and init_64, and is moved to the common 32/64-bit mm/mem.c.

All other sections except init were removed in v2.6.15 by
6c45ab992e4299c869fb26427944a8f8ea177024 (powerpc: Remove section
free() and linker script bits), and therefore the bulk of the executed
code is identical.

This patch also removes updating ppc_md.progress to NULL in the powermac
late_initcall.

Suggested-by: Milton Miller 
Suggested-by: Benjamin Herrenschmidt 
Signed-off-by: Dave Carroll 
Signed-off-by: Benjamin Herrenschmidt

powerpc/pmac/smp: Consolidate 32-bit and 64-bit PowerMac cpu_die in one file

2011-04-01T04:37:21+00:00

Signed-off-by: Benjamin Herrenschmidt