kernel/linux.git/arch/powerpc/platforms/cell/setup.c, branch linux-4.16.y

powerpc: Use of for_each_node_by_name() instead of open-coding it

2017-12-04T02:10:59+00:00

Instead of manually coding the loop with of_find_node_by_name(), let's switch to the standard macro for iterating over nodes with given name. Signed-off-by: Dmitry Torokhov [mpe: Fix build failures due to typo in mpc832x_mds.c] Signed-off-by: Michael Ellerman

powerpc/64: Move 64-bit probe_machine() to later in the boot process

2016-07-21T08:59:22+00:00

We no long need the machine type that early, so we can move probe_machine() to after the device-tree has been expanded. This will allow further consolidation. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman

powerpc/64: Move MMU backend selection out of platform code

2016-07-21T08:56:38+00:00

We move it into early_mmu_init() based on firmware features. For PS3, we have to move the setting of these into early_init_devtree(). Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman

powerpc/cell: Fix iommu breakage caused by controller_ops change

2015-04-14T07:13:31+00:00

The recent patch to convert cell to use pci_controller_ops had a small bug which broke machines using an iommu. The set of phb->controller_ops was added after the check for name != "pci", meaning pcix/pcie PHBs weren't getting their ops set correctly. Fixes: 9c1368fc50e7 ("powerpc/cell: Move controller ops from ppc_md to controller_ops") Signed-off-by: Michael Ellerman

powerpc/cell: Move controller ops from ppc_md to controller_ops

2015-04-11T10:49:17+00:00

This moves the Cell 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: 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: drivers: remove __dev* attributes.

2013-01-03T23:57:04+00:00

CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Greg Kroah-Hartman

powerpc: Mark const init data with initconst instead of initdata

2012-04-02T04:00:03+00:00

As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Uwe Kleine-König Cc: Josh Boyer Cc: Matt Porter Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Anatolij Gustschin Cc: Kumar Gala Cc: Arnd Bergmann Cc: linuxppc-dev@lists.ozlabs.org Cc: cbe-oss-dev@lists.ozlabs.org Signed-off-by: Benjamin Herrenschmidt

powerpc/mpic: Remove duplicate MPIC_WANTS_RESET flag

2012-02-22T23:50:00+00:00

There are two separate flags controlling whether or not the MPIC is reset during initialization, which is completely unnecessary, and only one of them can be specified in the device tree. Also, most platforms in-tree right now do actually want to reset the MPIC during initialization anyways, which means lots of duplicate code passing the MPIC_WANTS_RESET flag. Fix all of the callers which currently do not pass the MPIC_WANTS_RESET flag to pass the MPIC_NO_RESET flag, then remove the MPIC_WANTS_RESET flag and make the code reset the MPIC by default. Signed-off-by: Kyle Moffett Signed-off-by: Benjamin Herrenschmidt

powerpc/mpic: Add in-core support for cascaded MPICs

2011-12-07T02:43:09+00:00

The Cell and PowerMac platforms use virtually identical cascaded-IRQ setup code, so just merge it into the core. Ideally this code would trigger automatically when an MPIC device-node specifies an "interrupts" property, perhaps even enabling MPIC_SECONDARY along the way. Unfortunately, Benjamin Herrenschmidt has had bad experiences in the past with the quality of Apple PowerMac device-trees, so to be safe we will only try to parse out an IRQ if the MPIC_SECONDARY flag is set by the caller. Signed-off-by: Kyle Moffett Signed-off-by: Benjamin Herrenschmidt