| Commit message (Collapse) | Author | Age | Files | Lines |
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Change the platform bus binding to make use of the established
platform_bus API.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andrei Konovalov <akonovalov@ru.mvista.com>
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Split the device setup code away from the platform bus binding. This is
in preparation for adding the of_platform bus binding to this driver and
most of the setup code is common between the two busses.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andrei Konovalov <akonovalov@ru.mvista.com>
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Labels and gotos are used in xilinxfb_assign to unwind allocations
on device registration failures. Rename the labels to reflect the
error which occured. This change is being made to make it easier
to add new failout paths (which occurs in a subsuquent patch) and
to make reviewing the failout path easier.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andrei Konovalov <akonovalov@ru.mvista.com>
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The dev_dbg, dev_err, etc functions provide more context that plain
vanilla printk which is useful for debugging. Where appropriate,
change printk calls to the appropriate dev_*() call.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andrei Konovalov <akonovalov@ru.mvista.com>
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Debug support: when DEBUG is defined, output relevant details to the
log about the framebuffer registration.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andrei Konovalov <akonovalov@ru.mvista.com>
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In testing the new clocksource and clockevent code on a PPC601
processor, I discovered that the clockevent multiplier value for the
decrementer clockevent was overflowing. Because the RTCL register in
the 601 effectively counts at 1GHz (it doesn't actually, but it
increases by 128 every 128ns), and the shift value was 32, that meant
the multiplier value had to be 2^32, which won't fit in an unsigned
long on 32-bit. The same problem would arise on any platform where
the timebase frequency was 1GHz or more (not that we actually have any
such machines today).
This fixes it by reducing the shift value to 16. Doing the
calculations with a resolution of 2^-16 nanoseconds (15 femtoseconds)
should be quite adequate. :)
Signed-off-by: Paul Mackerras <paulus@samba.org>
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On old powermacs, we sometimes set the decrementer to 1 in order to
trigger a decrementer interrupt, which we use to handle an interrupt
that was pending at the time when it was re-enabled. This was causing
the decrementer clock event device to call the event function for the
next event early, which was causing problems when high-res timers were
not enabled.
This fixes the problem by recording the timebase value at which the
next event should occur, and checking the current timebase against the
recorded value in timer_interrupt. If it isn't time for the next
event, it just reprograms the decrementer and returns.
This also subtracts 1 from the value stored into the decrementer,
which is appropriate because the decrementer interrupts on the
transition from 0 to -1, not when the decrementer reaches 0.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Some IBM machines supply a "logical" PVR (processor version register)
value in the device tree in the cpu nodes rather than the real PVR.
This is used for instance to indicate that the processors in a POWER6
partition have been configured by the hypervisor to run in POWER5+
mode rather than POWER6 mode. To cope with this, we call identify_cpu
a second time with the logical PVR value (the first call is with the
real PVR value in the very early setup code).
However, POWER5+ machines can also supply a logical PVR value, and use
the same value (the value that indicates a v2.04 architecture
compliant processor). This causes problems for code that uses the
performance monitor (such as oprofile), because the PMU registers are
different in POWER6 (even in POWER5+ mode) from the real POWER5+.
This change works around this problem by taking out the PMU
information from the cputable entries for the logical PVR values, and
changing identify_cpu so that the second call to it won't overwrite
the PMU information that was established by the first call (the one
with the real PVR), but does update the other fields. Specifically,
if the cputable entry for the logical PVR value has num_pmcs == 0,
none of the PMU-related fields get used.
So that we can create a mixed cputable entry, we now make cur_cpu_spec
point to a single static struct cpu_spec, and copy stuff from
cpu_specs[i] into it. This has the side-effect that we can now make
cpu_specs[] be initdata.
Ultimately it would be good to move the PMU-related fields out to a
separate structure, pointed to by the cputable entries, and change
identify_cpu so that it saves the PMU info pointer, copies the whole
structure, and restores the PMU info pointer, rather than identify_cpu
having to list all the fields that are *not* PMU-related.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Don't allow cpu hotplug on systems lacking XICS interrupt controller
(i.e. with an MPIC interrupt controller), since the current pSeries
platform code is hardcoded for XICS.
This works around the bug reported by Paul Mackerras where the
disable_nonboot_cpus() call recently added to the shutdown path will
cause an oops on older pSeries machines.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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We no longer initialise the name and owner fields of the
of_platform_driver, but use the fields of the embedded device_driver's
name field instead.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This way we only have entries in the device tree for disks that actually
exist. A slight complication is that disks may be attached to LPARs
at runtime.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now we will only have entries in the device tree for the actual existing
devices (including their OS/400 properties). This way viotape.c gets
all the information about the devices from the device tree.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now we will only have entries in the device tree for the actual existing
devices (including their OS/400 properties). This way viocd.c gets all
the information about the devices from the device tree.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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It was only being used to carry around dma_iommu_ops and vio_iommu_table
which we can use directly instead. This also means that vio_bus_device
doesn't need to refer to them either.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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We don't need to keep a lump of dma coherent memory around for the life
of the module.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Remove vio_dma_ops declaration (since it no longer exists) and some
unused fields from struct vio_driver.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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There is no good reason for board platform code to mess with the
ROOT_DEV. Remove it from all in-tree platforms except powermac.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This allows platforms which don't have anything to do at setup_arch time
(like a bunch of the 4xx platforms) to eliminate an empty setup_arch hook.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Our _GLOBAL macro does a ".align 2" so the alignment is fine for 32
bit, but on 64 bit it is possible for it to end up only 4 byte aligned.
I don't know if it matters, but it can't hurt to 8 byte align it.
It also means that when we build with --emit_relocs, none of our 64 bit
relocations are to misaligned places.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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There is no BOOTIMG Kconfig variable, not to mention that there is no
include/linux/bootimg.h header file.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add support for a simple tagged database in the PS3 flash rom
os-area. The database allows the flash rom os-area to be shared
between a bootloader and installed operating systems. The
application ps3-flash-util or the library libps3-utils from the
ps3-utils package can be used for userspace database operations.
The latest ps3-utils package is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-utils.git
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add the PS3 os-area startup params to the device tree. This allows
a second stage kernel loaded with kexec to use these values.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Updates for PS3 os-area rtc_diff set/get routines
o Add a new routine ps3_os_area_set_rtc_diff().
o Rename ps3_os_area_rtc_diff() to ps3_os_area_get_rtc_diff().
o Remove static variable rtc_shift with calls to ps3_os_area_get_rtc_diff().
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add a workqueue to the PS3 os-area support. This is needed to
support writing updates to flash memory and to update the /proc
device tree entries from the timer tick interrupt context.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Updates for PS3 os-area startup params
o Remove some unused PS3 os-area startup params from struct saved_params.
o Rename ps3_os_area_init() to ps3_os_area_save_params().
o Zero mirrored header after saving params.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Minor cleanup of the PS3 file os-area.c:
o Correct file text header.
o Add type names enum os_area_ldr_format, enum os_area_boot_flag,
enum os_area_ctrl_button.
o Change struct os_area_header.magic_num type to u8.
o Add preprocessor macro SECONDS_FROM_1970_TO_2000.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This adds definitions for the Cell memory controller registers (at
least some of them) for use by the EDAC driver for ECC error reporting.
It also expose the said MIC as a platform device that can be used
by the EDAC driver to match on.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The new Cell EDAC driver needs that file, oprofile also does ugly
path tricks to get to it, it's time to move it to asm-powerpc. While
at it, rename it to be consistent with cell-pmu.h (and dashes look
nicer than underscores anyway).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Add '-g' to BOOTCFLAGS if CONFIG_DEBUG_INFO is set.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Since bootdevice never gets initialized, it's always NULL, and hence a
whole pile of code in arch/powerpc/platforms/setup.c never gets used.
(This was the code that originally was there so that the automatic
root partition selection mechanism would prefer a rootish-looking
partition on the device that OF loaded the kernel from over a similar
partition on other devices.)
This removes the unused code.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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WARNING: vmlinux.o(.text+0x2ff5c): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host')
>From holly_defconfig:
WARNING: vmlinux.o(.text+0x164fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
WARNING: vmlinux.o(.text+0x16506): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
>From linkstation_defconfig:
WARNING: vmlinux.o(.text+0x158fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
WARNING: vmlinux.o(.text+0x15906): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
>From mpc7448_hpc2_defconfig:
WARNING: vmlinux.o(.text+0x1583e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
WARNING: vmlinux.o(.text+0x15846): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
>From pmac32_defconfig:
WARNING: vmlinux.o(.text+0x154ca): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host')
WARNING: vmlinux.o(.text+0x154d2): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host')
WARNING: vmlinux.o(.text+0x1553c): Section mismatch: reference to .init.text:pmac_find_ide_boot (between 'note_bootable_part' and 'note_scsi_host')
>From ppc64_defconfig:
WARNING: vmlinux.o(.text+0x3acdc): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host')
>From prpmc2800_defconfig:
WARNING: vmlinux.o(.text+0x1611e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
WARNING: vmlinux.o(.text+0x16126): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu')
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Discussions with firmware architects have confirmed that the bit in
the ibm,pa-features property that indicates support for
cache-inhibited large (>= 64kB) page mappings does in fact mean that
the hypervisor allows 64kB mappings to I/O devices.
Thus we can now enable the code that tests that bit and sets our
CPU_FTR_CI_LARGE_PAGE feature bit.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The name field of of_platform_driver is just copied into the included
device_driver. By not overriding an already initialised device_driver
name, we can convert the drivers over time to stop using the
of_platform_driver name.
Also we were not copying the owner field from of_platform_driver, so do
the same with it.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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DTC now supports "foo","bar" format for lists of strings; use the new
format on the lite5200 device trees.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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On non-QE processors (mpc831x/mpc834x) the SPI clock is the SoC clock.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Apart from that the current code doesn't compile it's also
meaningless with regard to the MPC8568E-MDS' BCSR.
This patch used to reset UCCs properly.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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1. UCC1's RX_DV pin is 16, not 15;
2. UCC1's phy is at 0x7, not 0x1. Schematics says 0x7, and recent
u-boot also using 0x7.
3. Use gianfar's (eTSEC) mdio bus. This is hardware default setup.
4. tx-clock should be CLK16 (GE125, PB31);
5. phy-connection-type is RGMII-ID;
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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8 bytes padding required to match MPC85xx registers layout.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Reviewed-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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set_irq_chained_handler overwrites MPIC's handle_irq function
(handle_fasteoi_irq) thus MPIC never gets eoi event from the
cascaded IRQ. This situation hangs MPIC on MPC8568E.
To solve this problem efficiently, QEIC needs pluggable handlers,
specific to the underlaying interrupt controller.
Patch extends qe_ic_init() function to accept low and high interrupt
handlers. To avoid #ifdefs, stack of interrupt handlers specified in
the header file and functions are marked 'static inline', thus
handlers are compiled-in only if actually used (in the board file).
Another option would be to lookup for parent controller and
automatically detect handlers (will waste text size because of
never used handlers, so this option abolished).
qe_ic_init() also changed in regard to support multiplexed high/low
lines as found in MPC8568E-MDS, plus qe_ic_cascade_muxed_mpic()
handler implemented appropriately.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Update the definition of the global utilities structure (ccsr_guts) in
immap_86xx.h and add some related macros for the Freescale 8610 SOC.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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On the majority of 85xx & 86xx we have a register that's ability to
assert HRESET_REQ to reset the board. We refactored that code so it
can be shared between both platforms into fsl_soc.c and removed all
the duplication in each platform directory.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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On the Freescale embedded (83xx, 85xx, 86xx) and a few of the discrete
bridges (mpc10x, tsi108) use the new for_each_compatible_node() or
for_each_node_by_type() to provide more exact matching when looking for
PHBs in the device tree.
With the previous code it was possible to match on pci bridges since
we were only matching on device_type.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The LTSSM register is actual 32-bits wide so we should be doing a
dword access.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The CONFIG_FSL_BOOKE mmu setup code fails when CONFIG_HIGHMEM=y
and the 3 fixed TLB entries cannot exactly map the lowmem size.
Each TLB entry can map 4MB, 16MB, 64MB or 256MB, so the failure
is observed when the kernel lowmem size is not equal to the
sum of up to 3 of those values.
Normally, memory is sized in nice numbers, but I observed this
problem while testing a crash dump kernel. The failure can
also be observed by artificially reducing the kernel's main
memory via the mem= kernel command line parameter.
This commit fixes the problem by setting __initial_memory_limit
in adjust_total_lowmem().
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add basic board support for the MPC8610 HPCD. This does
not include any support the SoC Display or Audio controllers.
Signed-off-by: Xianghua Xiao <x.xiao@freescale.com>
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Jon Loelier <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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