BMC/Intel-BMC/linux.git/arch/powerpc/platforms/embedded6xx, branch dev

powerpc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

2015-06-02T06:54:44+00:00

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Signed-off-by: Jiang Liu Signed-off-by: Michael Ellerman

powerpc: Remove some unused functions

2015-01-28T04:00:24+00:00

Remove slice_set_psize() which is not used. It was added in 3a8247cc2c85 "powerpc: Only demote individual slices rather than whole process" but was never used. Remove vsx_assist_exception() which is not used. It was added in ce48b2100785 "powerpc: Add VSX context save/restore, ptrace and signal support" but was never used. Remove generic_mach_cpu_die() which is not used. Its last caller was removed in 375f561a4131 "powerpc/powernv: Always go into nap mode when CPU is offline". Remove mpc7448_hpc2_power_off() and mpc7448_hpc2_halt() which are unused. These were introduced in c5d56332fd6c "[POWERPC] Add general support for mpc7448hpc2 (Taiga) platform" but were never used. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist [mpe: Update changelog with details on when/why they are unused] Signed-off-by: Michael Ellerman

powerpc/gamecube/wii: delete unneeded test before of_node_put

2014-11-09T22:59:35+00:00

Simplify the error path to avoid calling of_node_put when it is not needed. Signed-off-by: Julia Lawall 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: make of_device_ids const

2014-09-25T13:14:46+00:00

of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by work with const of_device_ids. This allows to mark all struct of_device_id const, too. While touching these line also put the __init annotation at the right position where necessary. Signed-off-by: Uwe Kleine-König Signed-off-by: Michael Ellerman

powerpc/legacy_serial: Support MVME5100 UARTS with shifted registers

2014-04-28T07:36:25+00:00

This patch adds support to legacy serial for UARTS with shifted registers. The MVME5100 Single Board Computer is a PowerPC platform that has 16550 style UARTS with register addresses that are 16 bytes apart (shifted by 4). Commit 309257484cc1a592e8ac5fbdd8cd661be2b80bf8 "powerpc: Cleanup udbg_16550 and add support for LPC PIO-only UARTs" added support to udbg_16550 for shifted registers by adding a "stride" parameter to the initialisation operations for Programmed IO and Memory Mapped IO. As a consequence it is now possible to use the services of legacy serial to provide early serial console messages for the MVME5100. An added benefit of this is that the serial console will always be "ttyS0" irrespective of whether the computer is fitted with extra PCI 8250 interface boards or not. I have tested this patch using the four PowerPC platforms available to me: MVME5100 - shifted registers, SAM440EP - unshifted registers, MPC8349 - unshifted registers, MVME4100 - unshifted registers. Signed-off-by: Stephen Chivers Signed-off-by: Benjamin Herrenschmidt

powerpc/kconfig: Remove TSI108_BRIDGE duplicates

2014-03-19T21:14:44+00:00

The MPC7448HPC2 and PPC_HOLLY config options contain TSI108_BRIDGE duplicates since commit: commit 3490cba56f7f8a78ef4c94814c3181f09ce1e2ef Author: Jon Loeliger Date: Wed Jan 23 12:42:50 2008 -0600 [POWERPC] Add initial iomega StorCenter board port. This patch cleans these duplicates. Signed-off-by: Luis Henriques Signed-off-by: Scott Wood

powerpc: Delete old PrPMC 280/2800 support

2014-03-07T04:54:48+00:00

This processor/memory module was mostly used on ATCA blades and before that, on cPCI blades. It wasn't really user friendly, with custom non u-boot bootloaders (powerboot/motload) and no real way to recover corrupted boot flash (which was a common problem). As such, it had its day back before the big ppc --> powerpc move to device trees, and that was largely through commercial BSPs that started to dry up around 2007. Systems using one were largely in a "deploy and sustain" mode, so interest in upgrading to new kernels in the field was nil. Also, requiring 50A, 48V power supplies and a 2'x2'x2' ATCA chassis largely rules out any hobbyist/enthusiast interest. The point of all this, is that we might as well delete the in kernel files relating to this platform. No point in continuing to build it via walking the defconfigs or via linux-next testing. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Paul Gortmaker Signed-off-by: Benjamin Herrenschmidt

Merge remote-tracking branch 'scott/next' into next

2014-01-15T03:22:35+00:00

Freescale updates from Scott: << Highlights include 32-bit booke relocatable support, e6500 hardware tablewalk support, various e500 SPE fixes, some new/revived boards, and e6500 deeper idle and altivec powerdown modes. >>

powerpc: Delete non-required instances of include

2014-01-15T02:46:44+00:00

None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. The one instance where we add an include for init.h covers off a case where that file was implicitly getting it from another header which itself didn't need it. Signed-off-by: Paul Gortmaker Signed-off-by: Benjamin Herrenschmidt