| Commit message (Collapse) | Author | Age | Files | Lines |
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Currently, when running on FVP, CPU 0 boots up with its BPR changed from
the reset value. This renders it impossible to (preemptively) prioritize
interrupts on CPU 0.
This is harmless on normal systems since Linux typically does not
support preemptive interrupts. It does however cause problems in
systems with additional changes (such as patches for NMI simulation).
Many thanks to Andrew Thoelke for suggesting the BPR as having the
potential to harm preemption.
Suggested-by: Andrew Thoelke <andrew.thoelke@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"nvdimm fixes for v4.8, two of them are tagged for -stable:
- Fix devm_memremap_pages() to use track_pfn_insert(). Otherwise,
DAX pmd mappings end up with an uncached pgprot, and unusable
performance for the device-dax interface. The device-dax interface
appeared in 4.7 so this is tagged for -stable.
- Fix a couple VM_BUG_ON() checks in the show_smaps() path to
understand DAX pmd entries. This fix is tagged for -stable.
- Fix a mis-merge of the nfit machine-check handler to flip the
polarity of an if() to match the final version of the patch that
Vishal sent for 4.8-rc1. Without this the nfit machine check
handler never detects / inserts new 'badblocks' entries which
applications use to identify lost portions of files.
- For test purposes, fix the nvdimm_clear_poison() path to operate on
legacy / simulated nvdimm memory ranges. Without this fix a test
can set badblocks, but never clear them on these ranges.
- Fix the range checking done by dax_dev_pmd_fault(). This is not
tagged for -stable since this problem is mitigated by specifying
aligned resources at device-dax setup time.
These patches have appeared in a next release over the past week. The
recent rebase you can see in the timestamps was to drop an invalid fix
as identified by the updated device-dax unit tests [1]. The -mm
touches have an ack from Andrew"
[1]: "[ndctl PATCH 0/3] device-dax test for recent kernel bugs"
https://lists.01.org/pipermail/linux-nvdimm/2016-September/006855.html
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm: allow legacy (e820) pmem region to clear bad blocks
nfit, mce: Fix SPA matching logic in MCE handler
mm: fix cache mode of dax pmd mappings
mm: fix show_smap() for zone_device-pmd ranges
dax: fix mapping size check
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track_pfn_insert() in vmf_insert_pfn_pmd() is marking dax mappings as
uncacheable rendering them impractical for application usage. DAX-pte
mappings are cached and the goal of establishing DAX-pmd mappings is to
attain more performance, not dramatically less (3 orders of magnitude).
track_pfn_insert() relies on a previous call to reserve_memtype() to
establish the expected page_cache_mode for the range. While memremap()
arranges for reserve_memtype() to be called, devm_memremap_pages() does
not. So, teach track_pfn_insert() and untrack_pfn() how to handle
tracking without a vma, and arrange for devm_memremap_pages() to
establish the write-back-cache reservation in the memtype tree.
Cc: <stable@vger.kernel.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Nilesh Choudhury <nilesh.choudhury@oracle.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Toshi Kani <toshi.kani@hpe.com>
Reported-by: Kai Zhang <kai.ka.zhang@oracle.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- smp_mb__before_spinlock() changed to smp_mb() on arm64 since the
generic definition to smp_wmb() is not sufficient
- avoid a recursive loop with the graph tracer by using using
preempt_(enable|disable)_notrace in _percpu_(read|write)
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: use preempt_disable_notrace in _percpu_read/write
arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb()
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When debug preempt or preempt tracer is enabled, preempt_count_add/sub()
can be traced by function and function graph tracing, and
preempt_disable/enable() would call preempt_count_add/sub(), so in Ftrace
subsystem we should use preempt_disable/enable_notrace instead.
In the commit 345ddcc882d8 ("ftrace: Have set_ftrace_pid use the bitmap
like events do") the function this_cpu_read() was added to
trace_graph_entry(), and if this_cpu_read() calls preempt_disable(), graph
tracer will go into a recursive loop, even if the tracing_on is
disabled.
So this patch change to use preempt_enable/disable_notrace instead in
this_cpu_read().
Since Yonghui Yang helped a lot to find the root cause of this problem,
so also add his SOB.
Signed-off-by: Yonghui Yang <mark.yang@spreadtrum.com>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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smp_mb__before_spinlock() is intended to upgrade a spin_lock() operation
to a full barrier, such that prior stores are ordered with respect to
loads and stores occuring inside the critical section.
Unfortunately, the core code defines the barrier as smp_wmb(), which
is insufficient to provide the required ordering guarantees when used in
conjunction with our load-acquire-based spinlock implementation.
This patch overrides the arm64 definition of smp_mb__before_spinlock()
to map to a full smp_mb().
Cc: <stable@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- Don't alias user region to other regions below PAGE_OFFSET from
Paul Mackerras
- Fix again csum_partial_copy_generic() on 32-bit from Christophe
Leroy
- Fix corrupted PE allocation bitmap on releasing PE from Gavin Shan
Fixes for code merged this cycle:
- Fix crash on releasing compound PE from Gavin Shan
- Fix processor numbers in OPAL ICP from Benjamin Herrenschmidt
- Fix little endian build with CONFIG_KEXEC=n from Thiago Jung
Bauermann"
* tag 'powerpc-4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET
powerpc/32: Fix again csum_partial_copy_generic()
powerpc/powernv: Fix corrupted PE allocation bitmap on releasing PE
powerpc/powernv: Fix crash on releasing compound PE
powerpc/xics/opal: Fix processor numbers in OPAL ICP
powerpc/pseries: Fix little endian build with CONFIG_KEXEC=n
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In commit c60ac5693c47 ("powerpc: Update kernel VSID range", 2013-03-13)
we lost a check on the region number (the top four bits of the effective
address) for addresses below PAGE_OFFSET. That commit replaced a check
that the top 18 bits were all zero with a check that bits 46 - 59 were
zero (performed for all addresses, not just user addresses).
This means that userspace can access an address like 0x1000_0xxx_xxxx_xxxx
and we will insert a valid SLB entry for it. The VSID used will be the
same as if the top 4 bits were 0, but the page size will be some random
value obtained by indexing beyond the end of the mm_ctx_high_slices_psize
array in the paca. If that page size is the same as would be used for
region 0, then userspace just has an alias of the region 0 space. If the
page size is different, then no HPTE will be found for the access, and
the process will get a SIGSEGV (since hash_page_mm() will refuse to create
a HPTE for the bogus address).
The access beyond the end of the mm_ctx_high_slices_psize can be at most
5.5MB past the array, and so will be in RAM somewhere. Since the access
is a load performed in real mode, it won't fault or crash the kernel.
At most this bug could perhaps leak a little bit of information about
blocks of 32 bytes of memory located at offsets of i * 512kB past the
paca->mm_ctx_high_slices_psize array, for 1 <= i <= 11.
Fixes: c60ac5693c47 ("powerpc: Update kernel VSID range")
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Commit 7aef4136566b0 ("powerpc32: rewrite csum_partial_copy_generic()
based on copy_tofrom_user()") introduced a bug when destination address
is odd and len is lower than cacheline size.
In that case the resulting csum value doesn't have to be rotated one
byte because the cache-aligned copy part is skipped so no alignment
is performed.
Fixes: 7aef4136566b0 ("powerpc32: rewrite csum_partial_copy_generic() based on copy_tofrom_user()")
Cc: stable@vger.kernel.org # v4.6+
Reported-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Tested-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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In pnv_ioda_free_pe(), the PE object (including the associated PE
number) is cleared before resetting the corresponding bit in the
PE allocation bitmap. It means PE#0 is always released to the bitmap
wrongly.
This fixes above issue by caching the PE number before the PE object
is cleared.
Fixes: 1e9167726c41 ("powerpc/powernv: Use PE instead of number during setup and release"
Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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The compound PE is created to accommodate the devices attached to
one specific PCI bus that consume multiple M64 segments. The compound
PE is made up of one master PE and possibly multiple slave PEs. The
slave PEs should be destroyed when releasing the master PE. A kernel
crash happens when derferencing @pe->pdev on releasing the slave PE
in pnv_ioda_deconfigure_pe().
# echo 0 > /sys/bus/pci/slots/C7/power
iommu: Removing device 0000:01:00.1 from group 0
iommu: Removing device 0000:01:00.0 from group 0
Unable to handle kernel paging request for data at address 0x00000010
Faulting instruction address: 0xc00000000005d898
cpu 0x1: Vector: 300 (Data Access) at [c000000fe8217620]
pc: c00000000005d898: pnv_ioda_release_pe+0x288/0x610
lr: c00000000005dbdc: pnv_ioda_release_pe+0x5cc/0x610
sp: c000000fe82178a0
msr: 9000000000009033
dar: 10
dsisr: 40000000
current = 0xc000000fe815ab80
paca = 0xc00000000ff00400 softe: 0 irq_happened: 0x01
pid = 2709, comm = sh
Linux version 4.8.0-rc5-gavin-00006-g745efdb (gwshan@gwshan) \
(gcc version 4.9.3 (Buildroot 2016.02-rc2-00093-g5ea3bce) ) #586 SMP \
Tue Sep 6 13:37:29 AEST 2016
enter ? for help
[c000000fe8217940] c00000000005d684 pnv_ioda_release_pe+0x74/0x610
[c000000fe82179e0] c000000000034460 pcibios_release_device+0x50/0x70
[c000000fe8217a10] c0000000004aba80 pci_release_dev+0x50/0xa0
[c000000fe8217a40] c000000000704898 device_release+0x58/0xf0
[c000000fe8217ac0] c000000000470510 kobject_release+0x80/0xf0
[c000000fe8217b00] c000000000704dd4 put_device+0x24/0x40
[c000000fe8217b20] c0000000004af94c pci_remove_bus_device+0x12c/0x150
[c000000fe8217b60] c000000000034244 pci_hp_remove_devices+0x94/0xd0
[c000000fe8217ba0] c0000000004ca444 pnv_php_disable_slot+0x64/0xb0
[c000000fe8217bd0] c0000000004c88c0 power_write_file+0xa0/0x190
[c000000fe8217c50] c0000000004c248c pci_slot_attr_store+0x3c/0x60
[c000000fe8217c70] c0000000002d6494 sysfs_kf_write+0x94/0xc0
[c000000fe8217cb0] c0000000002d50f0 kernfs_fop_write+0x180/0x260
[c000000fe8217d00] c0000000002334a0 __vfs_write+0x40/0x190
[c000000fe8217d90] c000000000234738 vfs_write+0xc8/0x240
[c000000fe8217de0] c000000000236250 SyS_write+0x60/0x110
[c000000fe8217e30] c000000000009524 system_call+0x38/0x108
It fixes the kernel crash by bypassing releasing resources (DMA,
IO and memory segments, PELTM) because there are no resources assigned
to the slave PE.
Fixes: c5f7700bbd2e ("powerpc/powernv: Dynamically release PE")
Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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When using the OPAL ICP backend we incorrectly pass Linux CPU numbers
rather than HW CPU numbers to OPAL.
Fixes: d74361881f0d ("powerpc/xics: Add ICP OPAL backend")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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On ppc64le, builds with CONFIG_KEXEC=n fail with:
arch/powerpc/platforms/pseries/setup.c: In function ‘pseries_big_endian_exceptions’:
arch/powerpc/platforms/pseries/setup.c:403:13: error: implicit declaration of function ‘kdump_in_progress’
if (rc && !kdump_in_progress())
This is because pseries/setup.c includes <linux/kexec.h>, but
kdump_in_progress() is defined in <asm/kexec.h>. This is a problem
because the former only includes the latter if CONFIG_KEXEC_CORE=y.
Fix it by including <asm/kexec.h> directly, as is done in powernv/setup.c.
Fixes: d3cbff1b5a90 ("powerpc: Put exception configuration in a common place")
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Pull ARM fixes from Russell King:
"A few ARM fixes:
- Robin Murphy noticed that the non-secure privileged entry was
relying on undefined behaviour, which needed to be fixed.
- Vladimir Murzin noticed that prov-v7 fails to build for MMUless
configurations because a required header file wasn't included.
- A bunch of fixes for StrongARM regressions found while testing
4.8-rc on such platforms"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: sa1100: clear reset status prior to reboot
ARM: 8600/1: Enforce some NS-SVC initialisation
ARM: 8599/1: mm: pull asm/memory.h explicitly
ARM: sa1100: register clocks early
ARM: sa1100: fix 3.6864MHz clock
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Clear the current reset status prior to rebooting the platform. This
adds the bit missing from 04fef228fb00 ("[ARM] pxa: introduce
reset_status and clear_reset_status for driver's usage").
Fixes: 04fef228fb00 ("[ARM] pxa: introduce reset_status and clear_reset_status for driver's usage")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Since the non-secure copies of banked registers lack architecturally
defined reset values, there is no actual guarantee when entering in Hyp
from secure-only firmware that the Non-Secure PL1 state will look the
way that kernel entry (in particular the decompressor stub) expects.
So far, we've been getting away with it thanks to implementation details
of ARMv7 cores and/or bootloader behaviour, but for the sake of forwards
compatibility let's try to ensure that we have a minimally sane state
before dropping down into it.
Cc: Russell King <linux@armlinux.org.uk>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Commit d78114554939a (""ARM: 8512/1: proc-v7.S: Adjust stack address when
XIP_KERNEL"") introduced a macro which lives under asm/memory.h.
Unfortunately, for MMU-less systems (like R-class) it leads to build failure:
arch/arm/mm/proc-v7.S: Assembler messages:
arch/arm/mm/proc-v7.S:538: Error: unrecognised relocation suffix
make[1]: *** [arch/arm/mm/proc-v7.o] Error 1
make: *** [arch/arm/mm] Error 2
since it is implicitly pulled via asm/pgtable.h for MMU capable systems only.
To fix it include asm/memory.h explicitly.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Since we switched to use pxa_timer, we need to provide the OSTIMER0
clock. However, as the clock is initialised early, we need to provide
the clock early as well, so that pxa_timer can find it. Adding the
clock to the clkdev table at core_initcall() time is way too late.
Move the initialisation earlier.
Fixes: ee3a4020f7c9 ("ARM: 8250/1: sa1100: provide OSTIMER0 clock for pxa_timer")
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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pxa_timer wants to be able to call clk_enable() etc on this clock,
but our clk_enable() implementation expects non-NULL enable/disable
operations. Provide these dummy implementations.
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0204000
[00000000] *pgd=00000000
Internal error: Oops: 80000005 [#1] ARM
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.8.0-rc2+ #887
Hardware name: Intel-Assabet
task: c0644590 task.stack: c0640000
PC is at 0x0
LR is at clk_enable+0x40/0x58
pc : [<00000000>] lr : [<c021b178>] psr: 600000d3
sp : c0641f60 ip : c0641f4c fp : c0641f74
r10: c1ffc7a0 r9 : 6901b118 r8 : 00000001
r7 : c0639a34 r6 : 0000001b r5 : a00000d3 r4 : c0645d70
r3 : c0645d78 r2 : 00000001 r1 : c0641ef0 r0 : c0645d70
Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment none
Control: c020717f Table: c020717f DAC: 00000053
Process swapper (pid: 0, stack limit = 0xc0640188)
Stack: (0xc0641f60 to 0xc0642000)
1f60: 00384000 c08762e4 c0641f98 c0641f78 c063308c c021b144 00000000 00000000
1f80: 00000000 c0660b20 ffffffff c0641fa8 c0641f9c c06220ec c0633058 c0641fb8
1fa0: c0641fac c061f114 c06220dc c0641ff4 c0641fbc c061bb68 c061f0fc ffffffff
1fc0: ffffffff 00000000 c061b6cc c0639a34 c0660cd4 c0642038 c0639a30 c0645434
1fe0: c0204000 c06380f8 00000000 c0641ff8 c0208048 c061b954 00000000 00000000
Backtrace:
[<c021b138>] (clk_enable) from [<c063308c>] (pxa_timer_nodt_init+0x40/0x120)
r5:c08762e4 r4:00384000
[<c063304c>] (pxa_timer_nodt_init) from [<c06220ec>] (sa1100_timer_init+0x1c/0x20)
r6:ffffffff r5:c0660b20 r4:00000000
[<c06220d0>] (sa1100_timer_init) from [<c061f114>] (time_init+0x24/0x2c)
[<c061f0f0>] (time_init) from [<c061bb68>] (start_kernel+0x220/0x42c)
[<c061b948>] (start_kernel) from [<c0208048>] (0xc0208048)
r10:c06380f8 r8:c0204000 r7:c0645434 r6:c0639a30 r5:c0642038 r4:c0660cd4
Code: bad PC value
---[ end trace 0000000000000000 ]---
Kernel panic - not syncing: Attempted to kill the idle task!
Fixes: ee3a4020f7c9 ("ARM: 8250/1: sa1100: provide OSTIMER0 clock for pxa_timer")
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"This is a slightly larger batch of fixes that we've been sitting on a
few -rcs. Most of them are simple oneliners, but there are two sets
that are slightly larger and worth pointing out:
- A set of patches to OMAP to deal with hwmod for RTC on am33xx
(beaglebone SoC, among others). It's the only clock that ever has
a valid offset of 0, so a new flag needed introduction once this
problem was discovered.
- A collection of CCI fixes for performance counters discovered once
people started using it on X-Gene CPUs"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
arm-cci: pmu: Fix typo in event name
Revert "ARM: tegra: fix erroneous address in dts"
ARM: dts: imx6qdl: Fix SPDIF regression
ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
ARM: dts: imx7d-sdb: fix ti,x-plate-ohms property name
ARM: dts: kirkwood: Fix PCIe label on OpenRD
ARM: kirkwood: ib62x0: fix size of u-boot environment partition
bus: arm-ccn: make event groups reliable
bus: arm-ccn: fix hrtimer registration
bus: arm-ccn: fix PMU interrupt flags
ARM: tegra: Correct polarity for Tegra114 PMIC interrupt
MAINTAINERS: add tree entry for ARM/UniPhier architecture
ARM: sun5i: Fix typo in trip point temperature
MAINTAINERS: Switch to kernel.org account for Krzysztof Kozlowski
ARM: imx6ul: populates platform device at .init_machine
bus: arm-ccn: Add missing event attribute exclusions for host/guest
bus: arm-ccn: Correct required arguments for XP PMU events
bus: arm-ccn: Fix XP watchpoint settings bitmask
bus: arm-ccn: Do not attempt to configure XPs for cycle counter
bus: arm-ccn: Fix PMU handling of MN
...
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https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes
Allwinner fixes for 4.8
A single patch fixing a typo in the temperature trip points in the A13
DTSI.
* tag 'sunxi-fixes-for-4.8' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: sun5i: Fix typo in trip point temperature
Signed-off-by: Olof Johansson <olof@lixom.net>
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Set cpu_alert0 temperature to 85°C instead of 850°C.
Fixes: 32a5d2d170cc ("ARM: dts: sun5i: Add cpu thermal zones to dtsi")
Signed-off-by: Hugo Grostabussiat <bonstra@bonstra.fr.eu.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
i.MX fixes for 4.8, 2nd round:
- Fix misspelled "ti,x-plate-ohms" property name of touchscreen
controller for imx7d-sdb DTS.
- Add missing BM_CLPCR_BYPASS_PMIC_READY setting for i.MX6SX to get
suspend/resume work properly.
- Fix SPDIF regression on imx6qdl which caused by a clock update on
spdif device node.
* tag 'imx-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6qdl: Fix SPDIF regression
ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
ARM: dts: imx7d-sdb: fix ti,x-plate-ohms property name
Signed-off-by: Olof Johansson <olof@lixom.net>
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Commit 833f2cbf7091 ("ARM: dts: imx6: change the core clock of spdif")
changed many more clocks than only the SPDIF core clock as stated in
the commit message.
The MLB clock has been added and this causes SPDIF regression as
reported by Xavi Drudis Ferran and also in this forum post:
https://forum.digikey.com/thread/34240
The MX6Q Reference Manual does not mention that MLB is a clock related
to SPDIF, so change it back to a dummy clock to restore SPDIF
functionality.
Thanks to Ambika for providing the fix at:
https://community.nxp.com/thread/387131
Fixes: 833f2cbf7091 ("ARM: dts: imx6: change the core clock of spdif")
Cc: <stable@vger.kernel.org> # 4.4.x
Reported-by: Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Xavi Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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i.MX6SX has bypass PMIC ready function, as this function
is normally NOT enabled on the board design, so we need
to bypass the PMIC ready pin check during DSM mode resume
flow, otherwise, the internal DSM resume logic will be
waiting for this signal to be ready forever and cause
resume fail.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Fixes: ff843d621bfc ("ARM: imx: add suspend support for i.mx6sx")
Cc: <stable@vger.kernel.org>
Tested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Fix misspelled "ti,x-plate-ohms" property name of TI TSC2046
touchscreen controller.
Fixes: d09e6beafa23 ("ARM: dts: imx7d-sdb: Add support for touchscreen")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This reverts commit b5c86b7496d74f6e454bcab5166efa023e1f0459.
This is no longer needed due to other changes going into 4.8 to rename
the unit addresses on a large number of device nodes. So it was picked up
for v4.8-rc1 in error.
Reported-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Merge "mvebu fixes for 4.8 (part 1)" from Gregory CLEMENT:
Few device tree fix on kirkwood:
- enable PCIe on OpenRD
- use correct u-boot environment partition size on ib62x0
* tag 'mvebu-fixes-4.8-2' of git://git.infradead.org/linux-mvebu:
ARM: dts: kirkwood: Fix PCIe label on OpenRD
ARM: kirkwood: ib62x0: fix size of u-boot environment partition
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While converting PCIe node on kirkwood by using label, the following
commit eb13cf8345e9 ("ARM: dts: kirkwood: Fixup pcie DT warnings")
introduced a regression on the OpenRD boards: the PCIe didn't work
anymore. As reported by Aaro Koskinen, the display/framebuffer was
lost. This commit adds the forgotten label.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: eb13cf8345e9 ("ARM: dts: kirkwood: Fixup pcie DT warnings")
Cc: stable@vger.kernel.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Commit 148c274ea644 ("ARM: kirkwood: ib62x0: add u-boot environment
partition") split the "u-boot" partition into "u-boot" and "u-boot
environment". However, instead of the size of the environment, an offset
was given, resulting in overlapping partitions.
Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Fixes: 148c274ea644 ("ARM: kirkwood: ib62x0: add u-boot environment partition")
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Luka Perkov <luka@openwrt.org>
Cc: stable@vger.kernel.org # 3.13+
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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The ARM GIC only supports interrupts with either level-high or
rising-edge types for SPIs. The interrupt type for the Palmas PMIC used
for Tegra114 boards is specified as level-low which is invalid for the
GIC. This has gone undetected because until recently, failures to set
the interrupt type when the interrupts are mapped via firmware (such as
device-tree) have not been reported. Since commits 4b357daed698
("genirq: Look-up trigger type if not specified by caller") and
1e2a7d78499e ("irqdomain: Don't set type when mapping an IRQ"), failure
to set the interrupt type will cause the requesting of the interrupt to
fail and exposing incorrectly configured interrupts.
Please note that although the interrupt type was never being set for the
Palmas PMIC, it was still working fine, because the default type setting
for the interrupt, 'level-high', happen to match the correct type for
the interrupt.
Finally, it should be noted that the Palmas interrupt from the PMIC is
actually 'level-low', however, this interrupt signal is inverted by the
Tegra PMC and so the GIC actually sees a 'level-high' interrupt which is
what should be specified in the device-tree interrupt specifier.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes
Fix for v4.8-rc1:
1. Select proper eMMC HighSpeed mode on Odroid XU. DTS was mixing
"samsung,exynos5250-dw-mshc" compatible (with HS200 as fastest mode)
with a property "mmc-hs400-1_8v" thus leading to failures during
probe.
2. Update Krzysztof Kozlowski's email address in maintainers.
* tag 'samsung-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
MAINTAINERS: Switch to kernel.org account for Krzysztof Kozlowski
ARM: dts: exynos: Properly select eMMC HighSpeed mode on Odroid XU
Signed-off-by: Olof Johansson <olof@lixom.net>
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Exynos5410 supports eMMC version 4.41 so HS200 is the top mode which
should be configured. This is reflected in usage of
"samsung,exynos5250-dw-mshc" compatible. However Odroid XU DTS
contained also property "mmc-hs400-1_8v" which is parsed by MMC core
therefore resulting in mixed configuration. MMC core set HS400 but
dwmmc_exynos driver did not configure the data strobe for HS400 DDR
mode.
Removal of HS400 properties fixes semi-random mmc errors during boot:
mmc_host mmc0: Bus speed (slot 0) = 400000000Hz (slot req 200000000Hz, actual 200000000HZ div = 1)
mmc0: mmc_select_hs400 failed, error -84
mmc0: error -84 whilst initialising MMC card
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
The i.MX fixes for 4.8:
- Fix typo in imx6sx-sabreauto board wakeup property
- Fix i.MX6UL suspend-to-standby support by adding the
BM_CLPCR_BYP_MMDC_CH0_LPM_HS handling
- Fix a i.MX6UL regression on suspend support, which is caused by
commit 850bea2335e4 ("arm: Remove unnecessary of_platform_populate
with default match table")
* tag 'imx-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx6ul: populates platform device at .init_machine
ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul
ARM: dts: imx6sx-sabreauto: Fix misspelled property
Signed-off-by: Olof Johansson <olof@lixom.net>
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At imx6ul_init_machine, it calls imx6ul_pm_init which needs to find
platform device for ocram, but the default populate platform device is at
of_platform_default_populate_init, which is located at arch_initcall_sync,
and called later than arch_initcall (.init_machine is located at that).
So below warning message will be showed during boots up:
imx6q_suspend_init: failed to find ocram device!
imx6_pm_common_init: No DDR LPM support with suspend -19!
Due to lack of ocram device, the suspend mode "mem" which needs ocram to
store suspend routine code is invalid.
This commit populates platform device before imx6ul_pm_init like other
imx6 platforms do, and the suspend mode "mem" can work successfully.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Fixes: 850bea2335e4 ("arm: Remove unnecessary of_platform_populate with default match table")
Cc: Anson Huang <anson.huang@nxp.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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There is a missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul,
without it, the "standby" mode can't work well, the system can't be
resumed.
With this commit, the "standby" mode works well.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: Anson Huang <anson.huang@nxp.com>
Cc: <stable@vger.kernel.org>
Fixes: ee4a5f838c84 ("ARM: imx: add suspend/resume support for i.mx6ul")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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In commit 99fc5ba0bfb6 ("ARM: dts: imx6sx: add i.mx6sx sabreauto board
support") it should've been enable-sdio-wakeup (not -wakup). But that is
now considered a legacy name for wakeup-source, so directly use the new
name instead, as done in commit 26cefdd15db1 for the other occurrence.
Fixes: 26cefdd15db1 ("ARM: dts: imx: replace legacy wakeup property with 'wakeup-source'")
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.8-rc cycle, mostly a series of four fixes for
am335x RTC zero offset for clkctrl register. Also few other fixes:
- Add missing sysc information for DSI as at least n950 needs it for
the working display
- Fix old elm-id properties that cause nand boot to not work
- Fix overo gpmc nand cs0 range
- FIx overo gpmc nand on boards with ethernet
- Fix logicpd torpedo nand ready pin nand interrupt configuration
* tag 'omap-for-v4.8/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: logicpd-somlv: Fix NAND device nodes
ARM: dts: logicpd-torpedo-som: Provide NAND ready pin
ARM: dts: overo: fix gpmc nand on boards with ethernet
ARM: dts: overo: fix gpmc nand cs0 range
ARM: dts: am335x: Update elm phandle binding
ARM: OMAP4+: CM: Remove redundant checks for clkctrl_offs of zero
ARM: OMAP4+: Have _omap4_wait_target_* check for valid clkctrl_offs
ARM: OMAP2+: AM33XX: Add HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to rtc hwmod
ARM: OMAP4+: hwmod: Add hwmod flag for HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET
ARM: OMAP3: hwmod data: Add sysc information for DSI
Signed-off-by: Olof Johansson <olof@lixom.net>
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This fix was applied to a bunch of omap3 devices including LogicPD
Torpedo, but this got missed since it was new around the same times
the patches were applied. This makes the GPMC parameters match the
Torpedo since they have the same processor PoP memory.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This was applied to a variety of omap3 boards, so it should
probably be applied here. I did not test NAND performance, but
I tested this with UBI to confirm read/write didn't break.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The gpmc ranges property for NAND at CS0 was being overridden by later
includes that defined gpmc ethernet nodes, effectively breaking NAND on
these systems:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
Instead of redefining the NAND range in every such dtsi, define all
currently used ranges in omap3-overo-base.dtsi.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Cc: stable <stable@vger.kernel.org> # 4.3
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The gpmc ranges property for NAND at CS0 has been broken since it was
first added.
This currently prevents the nand gpmc child node from being probed:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
and consequently the NAND device from being registered.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Cc: stable <stable@vger.kernel.org> # 4.3
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The check for the "elm_id" binding had been removed.
This causes nand boot to fail on boards still using
the old binding. Update the bindings on those boards.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Now that we have moved the check for valid clkctrl_offs to the caller of
am33xx_cm_wait_module_ready/idle and omap4_cminst_wait_module_ready/idle
let's remove the now redundant check for clkctrl_offs from these functions.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Previously the low-level CM call internal to the
_omap4_wait_target_ready/disable calls was responsible for checking for
a valid clkctrl_offs. Now we must also consider the value of the
prcm.omap4.flags because if HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET is set in
the flags then clkctrl_offs of 0 is valid.
Let's add this check into the _omap4_wait_target_ready/disable where we
have access to both the clkctrl_offs and the flags values and simply
return 0 without calling the low level CM call at all, which would have
returned 0 anyway if the clktrl_offs was zero.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The RTC hwmod on AM335x family of SoCs is unique in that the
clkctrl_offs in the PRCM is 0. We rely on a clkctrl_offs of zero as
indicating no clkctrl is present so we must flag this hwmod with
HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET to indicate the 0 clkctrl_offs is in
fact valid in this case.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Nearly all modules on OMAP4 and newer platforms have clkctrl offsets
that are non-zero except for the RTC on am335x. Because we rely on a
clkctrl_offset of zero to indicate no clkctrl_offset being present,
lets add a HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to use to indicate
hwmods that have a valid clkctrl_offset of 0.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add missing sysconfig/sysstatus information
to OMAP3 hwmod. The information has been
checked against OMAP34xx and OMAP36xx TRM.
Without this change DSI block is not reset
during boot, which is required for working
Nokia N950 display.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
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