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2013-12-26Merge tag 'v3.13-rc4' into next/cleanupOlof Johansson
Linux 3.13-rc4
2013-12-22Merge tag 'samsung-cleanup' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup From Kukjin Kim: Samsung cleanup for v3.14 - remove unused SAMSUNG_GPIOLIB_4BIT and IRQF_DISABLED - constify immutable PMU data table and PM clksrc register - make const struct for sleep_save * tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Constify clksrc immutable register restore tables ARM: SAMSUNG: Let s3c_pm_do_restore_*() take const sleep_save ARM: EXYNOS: Constify data tables for pmu ARM: SAMSUNG: remove IRQF_DISABLED ARM: SAMSUNG: remove unused SAMSUNG_GPIOLIB_4BIT Kconfig parameter Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-22Merge tag 'zynq-cleanup-for-3.14' of git://git.xilinx.com/linux-xlnx into ↵Olof Johansson
next/cleanup From Michal Simek: ARM: Xilinx Zynq cleanup patches for v3.14 This branch contains these fixes: - SMP cleanups - platform initialization cleanup * tag 'zynq-cleanup-for-3.14' of git://git.xilinx.com/linux-xlnx: ARM: zynq: remove unnecessary setting of cpu_present_mask arm: zynq: Set proper GIC flags arm: zynq: Use of_platform_populate instead of bus_probe arm: zynq: Add support for zynq_cpu_kill function arm: zynq: Invalidate L1 in secondary boot arm: zynq: platsmp: Remove CPU presence check Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-13Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "This resolves some further issues with the dma mask changes on ARM which have been found by TI and others, and also some corner cases with the updates to the virtual to physical address translations. Konstantin also found some problems with the unwinder, which now performs tighter verification that the stack is valid while unwinding" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: fix asm/memory.h build error ARM: 7917/1: cacheflush: correctly limit range of memory region being flushed ARM: 7913/1: fix framepointer check in unwind_frame ARM: 7912/1: check stack pointer in get_wchan ARM: 7909/1: mm: Call setup_dma_zone() post early_paging_init() ARM: 7908/1: mm: Fix the arm_dma_limit calculation ARM: another fix for the DMA mapping checks
2013-12-13ARM: fix asm/memory.h build errorRussell King
Jason Gunthorpe reports a build failure when ARM_PATCH_PHYS_VIRT is not defined: In file included from arch/arm/include/asm/page.h:163:0, from include/linux/mm_types.h:16, from include/linux/sched.h:24, from arch/arm/kernel/asm-offsets.c:13: arch/arm/include/asm/memory.h: In function '__virt_to_phys': arch/arm/include/asm/memory.h:244:40: error: 'PHYS_OFFSET' undeclared (first use in this function) arch/arm/include/asm/memory.h:244:40: note: each undeclared identifier is reported only once for each function it appears in arch/arm/include/asm/memory.h: In function '__phys_to_virt': arch/arm/include/asm/memory.h:249:13: error: 'PHYS_OFFSET' undeclared (first use in this function) Fixes: ca5a45c06cd4 ("ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions") Tested-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-12ARM: at91: remove AT91_PROGRAMMABLE_CLOCKS configuration optionNicolas Ferre
This AT91 specific Kconfig option removed the code that dealt with programmable clocks. Each AT91 SoC embeds programmable clocks and there is little gain to remove this code in case that such a clock is not used. If this option is not selected, it causes certain drivers to fail to build. We simply remove this option instead of adding code just to build a workaround. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-11ARM: mmp: build sram driver aloneQiao Zhou
sram driver can be used by many chips besides CPU_MMP2, and so build it alone. Also need to select MMP_SRAM for MMP_TDMA driver. Reported-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: Remove unused variablesThierry Reding
The conf and of_id variables are assigned but never used, so they may as well just be removed. Signed-off-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: remove IRQF_DISABLEDMichael Opdenacker
This flag is a NOOP since 2.6.35 and can be removed. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> [olof: Fixed compilation failure for pcm990-baseboard] Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: sun6i: dt: Fix interrupt trigger typesMaxime Ripard
The Allwinner A31 uses the ARM GIC as its internal interrupts controller. The GIC can work on several interrupt triggers, and the A31 was actually setting it up to use a rising edge as a trigger, while it was actually a level high trigger, leading to some interrupts that would be completely ignored if the edge was missed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Cc: stable@vger.kernel.org # 3.12+ Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: sun7i: dt: Fix interrupt trigger typesMaxime Ripard
The Allwinner A20 uses the ARM GIC as its internal interrupts controller. The GIC can work on several interrupt triggers, and the A20 was actually setting it up to use a rising edge as a trigger, while it was actually a level high trigger, leading to some interrupts that would be completely ignored if the edge was missed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Cc: stable@vger.kernel.org #3.12+ Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: tegra: add missing break to fuse initialization codeStephen Warren
Add a missing break to the switch in tegra_init_fuse() which determines which SoC the code is running on. This prevents the Tegra30+ fuse handling code from running on Tegra20. Fixes: 3bd1ae57f7bb ("ARM: tegra: add fuses as device randomness") Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: prevent PXA270 occasional reboot freezesSergei Ianovich
Erratum 71 of PXA270M Processor Family Specification Update (April 19, 2010) explains that watchdog reset time is just 8us insead of 10ms in EMTS. If SDRAM is not reset, it causes memory bus congestion and the device hangs. We put SDRAM in selfresh mode before watchdog reset, removing potential freezes. Without this patch PXA270-based ICP DAS LP-8x4x hangs after up to 40 reboots. With this patch it has successfully rebooted 500 times. Signed-off-by: Sergei Ianovich <ynvich@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: pxa: tosa: fix keys mappingDmitry Eremin-Solenikov
When converting from tosa-keyboard driver to matrix keyboard, tosa keys received extra 1 column shift. Replace that with correct values to make keyboard work again. Fixes: f69a6548c9d5 ('[ARM] pxa/tosa: make use of the matrix keypad driver') Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: clean up cache handling in platform codeNicolas Pitre
We have a handy macro to replace open coded __cpuc_flush_dcache_area(() and outer_clean_range() sequences. Let's use it. No functional change. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-11ARM: at91: remove redundant dependencyYanis Moreno
This removes the "depends on SOC_SAM_V7" statement in a Kconfig section that's under an "if SOC_SAM_V7" condition (same parameter). Signed-off-by: Yanis Moreno <yanis.moreno63@gmail.com> Reviewed-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-12ARM: EXYNOS: Constify clksrc immutable register restore tablesDaniel Kurtz
The clksrc tables are constant, they are not used to store register values at suspend. size arch/arm/mach-exynos/pm.o text data bss 1591 212 12 // Before 1671 132 12 // After Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-12ARM: SAMSUNG: Let s3c_pm_do_restore_*() take const sleep_saveDaniel Kurtz
The restore functions do not modify the passed in struct sleep_save, so that parameter can be const. This allows us to pass in const struct. This allows us to use const structs sleep_save to define system registers that will always be restored to a constant value. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-12ARM: EXYNOS: Constify data tables for pmuDaniel Kurtz
These tables are all immutable, make them const to save 4416 bytes of RAM. size arch/arm/mach-exynos/pmu.o text data bss 848 4420 4 // before 5264 4 4 // after Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-12ARM: SAMSUNG: remove IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the use of the IRQF_DISABLED flag. It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-12ARM: SAMSUNG: remove unused SAMSUNG_GPIOLIB_4BIT Kconfig parameterMichael Opdenacker
This removes the SAMSUNG_GPIOLIB_4BIT Kconfig parameter, which was no longer used anywhere in the source code and Makefiles. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-10ARM: OMAP2+: omap_device: add fail hook for runtime_pm when bad data is detectedNishanth Menon
Due to the cross dependencies between hwmod for automanaged device information for OMAP and dts node definitions, we can run into scenarios where the dts node is defined, however it's hwmod entry is yet to be added. In these cases: a) omap_device does not register a pm_domain (since it cannot find hwmod entry). b) driver does not know about (a), does a pm_runtime_get_sync which never fails c) It then tries to do some operation on the device (such as read the revision register (as part of probe) without clock or adequate OMAP generic PM operation performed for enabling the module. This causes a crash such as that reported in: https://bugzilla.kernel.org/show_bug.cgi?id=66441 When 'ti,hwmod' is provided in dt node, it is expected that the device will not function without the OMAP's power automanagement. Hence, when we hit a fail condition (due to hwmod entries not present or other similar scenario), fail at pm_domain level due to lack of data, provide enough information for it to be fixed, however, it allows for the driver to take appropriate measures to prevent crash. Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Kevin Hilman <khilman@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-10Merge tag 'for-v3.13-rc/hwmod-fixes-a' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes From Paul Walmsley: ARM: OMAP2+: hwmod code/data: fixes for v3.13-rc Fix a few hwmod code problems involving recovery with bad data and bad IP block OCP reset handling. Also, fix the hwmod data to enable IP block OCP reset for the OMAP USBHOST devices on OMAP3+. Basic build, boot, and PM tests are available here: http://www.pwsan.com/omap/testlogs/prcm_fixes_a_v3.13-rc/20131209030611/ * tag 'for-v3.13-rc/hwmod-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending: ARM: OMAP2+: hwmod: Fix usage of invalid iclk / oclk when clock node is not present ARM: OMAP3: hwmod data: Don't prevent RESET of USB Host module ARM: OMAP2+: hwmod: Fix SOFTRESET logic ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host module Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-10ARM: zynq: remove unnecessary setting of cpu_present_maskSudeep KarkadaNagesha
This patch also removes setting cpu_present_mask as platforms should only re-initialize it in smp_prepare_cpus() if present != possible. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-10arm: zynq: Set proper GIC flagsSoren Brinkmann
Zynq is able to wake up on any IRQ, so flag it with IRQCHIP_SKIP_SET_WAKE, and we want to mask off the IRQs when going to suspend to avoid transient effects so also flag this with IRQCHIP_MASK_ON_SUSPEND. This is essentially, making the same changes as commit 'ARM: ux500: set proper GIC flags' (sha1: 7e1f97ea8ffa66679252520dbbbd6ec413ecae68) for Zynq. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-10arm: zynq: Use of_platform_populate instead of bus_probeSoren Brinkmann
All new boards should be using this function instead of of_platform_bus_probe. Two side effects: 1. Possible to probe node which are not in the bus 2. Remove bus_id table from platform code Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-10arm: zynq: Add support for zynq_cpu_kill functionMichal Simek
Use simple hook to slcr to stop cpu. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-10arm: zynq: Invalidate L1 in secondary bootSoren Brinkmann
During boot, Linux initiates a clean-invalidate operation only, resulting in faulty data to be written to the memory system during resume. Therefore invalidate the L1 in the secondary boot path to avoid these issues. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-10arm: zynq: platsmp: Remove CPU presence checkSoren Brinkmann
The generic code already checks that the CPU being requested is legal if the cpu possible/present masks are set correctly. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-12-09Merge tag 'omap-for-v3.13/yet-more-dt-regressions-take2' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes A rather big fix for a regression where we have dropped omap4 hwmod data earlier but are not initializing it from device tree. In addition to this fix we eventually also be fix the issues in the .dts files and drivers, but that's too intrusive for the -rc cycle and must be done later on. Also a fix for a regression where we now are wrongly trying to initialize devices on secure omaps like n900 and n9* when booted using device tree. We need to set aes, sham and timer12 to disabled mode for secure devices as they are claimed by the firmware running in the secure mode. And two more legacy booting vs device tree based booting fixes for am3517 that I did not notice earlier until Nishant Menon reported these to me few days ago. With these we're good to go having v3.13 working both for legacy booting and device tree based booting, and we can then go ahed and drop the legacy booting for mach-omap2 for v3.14. * tag 'omap-for-v3.13/yet-more-dt-regressions-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (494 commits) ARM: dts: Fix booting for secure omaps ARM: OMAP2+: Fix the machine entry for am3517 ARM: dts: Fix missing entries for am3517 ARM: OMAP2+: Fix overwriting hwmod data with data from device tree +Linux 3.13-rc3
2013-12-09ARM: 7917/1: cacheflush: correctly limit range of memory region being flushedJon Medhurst
The __do_cache_op function operates with a 'chunk' size of one page but fails to limit the size of the final chunk so as to not exceed the specified memory region. Fix this. Cc: <stable@vger.kernel.org> Reported-by: Christian Gmeiner <christian.gmeiner@gmail.com> Tested-by: Christian Gmeiner <christian.gmeiner@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: 7913/1: fix framepointer check in unwind_frameKonstantin Khlebnikov
This patch fixes corner case when (fp + 4) overflows unsigned long, for example: fp = 0xFFFFFFFF -> fp + 4 == 3. Cc: <stable@vger.kernel.org> Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: 7912/1: check stack pointer in get_wchanKonstantin Khlebnikov
get_wchan() is lockless. Task may wakeup at any time and change its own stack, thus each next stack frame may be overwritten and filled with random stuff. /proc/$pid/stack interface had been disabled for non-current tasks, see [1] But 'wchan' still allows to trigger stack frame unwinding on volatile stack. This patch fixes oops in unwind_frame() by adding stack pointer validation on each step (as x86 code do), unwind_frame() already checks frame pointer. Also I've found another report of this oops on stackoverflow (irony). Link: http://www.spinics.net/lists/arm-kernel/msg110589.html [1] Link: http://stackoverflow.com/questions/18479894/unwind-frame-cause-a-kernel-paging-error Cc: <stable@vger.kernel.org> Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: 7909/1: mm: Call setup_dma_zone() post early_paging_init()Santosh Shilimkar
To get updated __pv_phys_offset, setup_dma_zone() needs to be called after early_paging_init(). Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: 7908/1: mm: Fix the arm_dma_limit calculationSantosh Shilimkar
Current code is using PHYS_OFFSET to calculate the arm_dma_limit which will lead to wrong calculations in cases where PHYS_OFFSET is updated runtime. So fix the code by using __pv_phys_offset instead of PHYS_OFFSET. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: another fix for the DMA mapping checksRussell King
Peter reports that OMAP audio broke with the recent fix for these checks, caused by OMAP audio using a 64-bit DMA mask. We should allow 64-bit DMA masks even with 32-bit dma_addr_t if we can be sure the amount of RAM we have won't allow the 32-bit dma_addr_t to overflow. Unfortunately, the checks to detect overflow were not correct. Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-09ARM: OMAP2+: hwmod: Fix usage of invalid iclk / oclk when clock node is not ↵Nishanth Menon
present commit dc75925d(OMAP: hwmod: Fix the missing braces) introduced missing braces, however, we just set return result if clk_get fail and we populate the error pointer in clk pointer and pass it along to clk_prepare. This is wrong. The intent seems to be retry remaining clocks if they are available and warn the ones we cant find clks for. With the current logic, we see the following crash: omap_hwmod: l3_main: cannot clk_get interface_clk emac_ick Unable to handle kernel NULL pointer dereference at virtual address 00000032 pgd = c0004000 [00000032] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-00044-gcc9fd5a-dirty #19 task: ce0c3440 ti: ce0c4000 task.ti: ce0c4000 PC is at __clk_prepare+0x10/0x74 LR is at clk_prepare+0x14/0x24 <snip> [<c044d59c>] (__clk_prepare+0x10/0x74) from [<c044d9b0>] (clk_prepare+0x14/0x24) [<c044d9b0>] (clk_prepare+0x14/0x24) from [<c077d8c4>] (_init+0x24c/0x3bc) [<c077d8c4>] (_init+0x24c/0x3bc) from [<c0027328>] (omap_hwmod_for_each+0x34/0x5c) [<c0027328>] (omap_hwmod_for_each+0x34/0x5c) from [<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40) [<c077dfa0>] (__omap_hwmod_setup_all+0x24/0x40) from [<c0008928>] (do_one_initcall+0x38/0x168) [<c0008928>] (do_one_initcall+0x38/0x168) from [<c0771be8>] (kernel_init_freeable+0xfc/0x1cc) [<c0771be8>] (kernel_init_freeable+0xfc/0x1cc) from [<c0521064>] (kernel_init+0x8/0x110) [<c0521064>] (kernel_init+0x8/0x110) from [<c000e568>] (ret_from_fork+0x14/0x2c) Code: e92d4038 e2504000 01a05004 0a000005 (e5943034) So, just warn and continue instead of proceeding and crashing, with missing clock nodes/bad data, we will eventually fail, however we should now have enough information to identify the culprit. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-09ARM: OMAP3: hwmod data: Don't prevent RESET of USB Host moduleRoger Quadros
Unlike what the comment states, errata i660 does not state that we can't RESET the USB host module. Instead it states that RESET is the only way to recover from a deadlock situation. RESET ensures that the module is in a known good state irrespective of what bootloader does with the module, so it must be done at boot. Signed-off-by: Roger Quadros <rogerq@ti.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM Fixes: de231388cb80 ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3") Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-09ARM: OMAP2+: hwmod: Fix SOFTRESET logicRoger Quadros
In _ocp_softreset(), after _set_softreset() + write_sysconfig(), the hwmod's sysc_cache will always contain SOFTRESET bit set so all further writes to sysconfig using this cache will initiate a repeated SOFTRESET e.g. enable_sysc(). This is true for OMAP3 like platforms that have RESET_DONE status in the SYSSTATUS register and so the the SOFTRESET bit in SYSCONFIG is not automatically cleared. It is not a problem for OMAP4 like platforms that indicate RESET completion by clearing the SOFTRESET bit in the SYSCONFIG register. This repeated SOFTRESET is undesired and was the root cause of USB host issues on OMAP3 platforms when hwmod was allowed to do the SOFTRESET for the USB Host module. To fix this we clear the SOFTRESET bit and update the sysconfig register + sysc_cache using write_sysconfig(). Signed-off-by: Roger Quadros <rogerq@ti.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM [paul@pwsan.com: renamed _clr_softreset() to _clear_softreset()] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-09ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host moduleRoger Quadros
Without this, the USB devices are sometimes not detected on OMAP4 Panda with u-boot v2013.10. Unlike what the comment states, errata i660 does not state that we can't RESET the USB host module. Instead it states that RESET is the only way to recover from a deadlock situation. RESET ensures that the module is in a known good state irrespective of what bootloader does with the module, so it must be done at boot. Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> # Panda, BeagleXM Acked-by: Benoît Cousson <bcousson@baylibre.com> Fixes: af88fa9aa77c ("ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4") Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-06ARM: dts: Fix booting for secure omapsTony Lindgren
Commit 7ce93f3 (ARM: OMAP2+: Fix more missing data for omap3.dtsi file) fixed missing device tree data for omaps, but did not account for some of the hardware modules being inaccessible for secure omaps. This causes the following error on secure omaps: Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0c5048 SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.13.0-rc2+ #446 task: ce057b40 ti: ce058000 task.ti: ce058000 PC is at omap_aes_dma_stop+0x24/0x3c LR is at omap_aes_probe+0x1cc/0x584 psr: 60000113 sp : ce059e20 ip : ce0b4ee0 fp : 00000000 r10: c0573ae8 r9 : c0749508 r8 : 00000000 r7 : ce0b4e00 r6 : 00000000 r5 : ce0b4e10 r4 : ce274890 r3 : fa0c5048 r2 : 00000048 r1 : 0000002c r0 : ce274890 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 80004019 DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xce058248) Stack: (0xce059e20 to 0xce05a000) 9e20: c0749508 0000a1ff 00000000 c016cd8c c06b5a06 ce2a45f0 ce2a4570 ce0b5fb0 9e40: 00000000 480c5000 480c504f c0abe4e4 00000200 00000000 00000000 00000000 9e60: ce0b4e10 ce0b4e10 c082da3c c082da3c c02b8c70 c077c610 c0749508 00000000 9e80: 00000000 c02b9e7c c02b9e64 ce0b4e10 00000000 c02b8b20 ce0b4e10 ce0b4e44 9ea0: c082da3c c02b8cd8 00000000 ce059eb8 c082da3c c02b7408 ce079edc ce0b1a34 9ec0: c082da3c c082da3c ce2a0280 00000000 c08158d8 c02b8358 c0663405 c0663405 9ee0: 00000073 c082da3c c079e4e8 c07ab3bc c0844340 c02b9334 00000000 00000006 9f00: c079e4e8 c0008920 c067f6bf c0ac7c6b 00000000 c0712e28 00000000 00000000 9f20: c0712e38 ce059f38 00000093 c0ac7c82 00000000 c0058994 00000000 c07130e8 9f40: c07127b8 00000093 00000006 00000006 00000001 00000006 00000006 c079e4e8 9f60: c07ab3bc c0844340 00000093 c0749508 c079e4f4 c0749c64 00000006 00000006 9f80: c0749508 00000000 00000000 c0517e2c 00000000 00000000 00000000 00000000 9fa0: 00000000 c0517e34 00000000 c000dfb8 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff (omap_aes_probe+0x1cc/0x584) (platform_drv_probe+0x18/0x48) (driver_probe_device+0xb0/0x200) (__driver_attach+0x68/0x8c) (bus_for_each_dev+0x50/0x88) (bus_add_driver+0xcc/0x1c8) (driver_register+0x9c/0xe0) (do_one_initcall+0x98/0x140) (kernel_init_freeable+0x16c/0x23c) (kernel_init+0x8/0x100) (ret_from_fork+0x14/0x3c) Code: e1811002 e5932020 e590300c e0833002 (e593c000) Let's fix the issue by adding omap34xx-hs.dtsi and omap36xx-hs.dtsi and make n900, n9 and n950 to use them. This way we have the aes, sham and timer12 disabled for secure devices the same way legacy booting does based on the omap34xx_gp_hwmod_ocp_ifs and omap36xx_gp_hwmod_ocp_ifs arrays in omap_hwmod_3xxx_data.c. Reported-by: Sebastian Reichel <sre@debian.org> Acked-By: Sebastian Reichel <sre@debian.org> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-06ARM: OMAP2+: Fix the machine entry for am3517Nishanth Menon
The am3517 is wrongly booting as omap3 which means that the am3517 specific devices like Ethernet won't work when booted with device tree. Now with the new devices defined in am3517.dtsi, let's use that instead of the omap3.dtsi, and add a separate machine entry for am3517 so am3517-evm can use it. Signed-off-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: updated comments and fixed build without omap3] Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-06ARM: dts: Fix missing entries for am3517Tony Lindgren
On am3517 there are some extra devices compared to omap3.dtsi that we currently have not defined. Let's fix that by adding am3517.dtsi file. Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-06ARM: OMAP2+: Fix overwriting hwmod data with data from device treeTony Lindgren
We have some device tree properties where the ti,hwmod have multiple values: am33xx.dtsi: ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; am4372.dtsi: ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; dra7.dtsi: ti,hwmods = "l3_main_1", "l3_main_2"; omap3.dtsi: ti,hwmods = "mcbsp2", "mcbsp2_sidetone"; omap3.dtsi: ti,hwmods = "mcbsp3", "mcbsp3_sidetone"; omap4.dtsi: ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3"; omap5.dtsi: ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3"; That's not correct way of doing things in this case because these are separate devices with their own address space, interrupts, SYSCONFIG registers and can set their PM states independently. So they should all be fixed up to be separate devices in the .dts files. We also have the related data removed for at least omap4 in commit 3b9b10151c68 (ARM: OMAP4: hwmod data: Clean up the data file), so that data is wrongly initialized as null data. So we need to fix two bugs: 1. We are only checking the first entry of the ti,hwmods property This means that we're only initializing the first hwmods entry instead of the ones listed in the ti,hwmods property. 2. We are only checking the child nodes, not the nodes themselves This means that anything listed at OCP level is currently just ignored and unitialized and at least the omap4 case, with the legacy data missing from the hwmod. Fix both of the issues by using an index to the ti,hwmods property and changing the hwmod lookup function to also check the current node for ti,hwmods property instead of just the children. While at it, let's also add some warnings for the bad data so it's easier to fix. Cc: "Benoît Cousson" <bcousson@baylibre.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-04Merge tag 'davinci-fixes-for-v3.13-rc3' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes From Sekhar Nori: This pull request includes a patch to align platform code to driver's usage of platform_get_resource_byname() This is needed to start successfully probing audio again. The regression was introduced in v3.13 merge window. * tag 'davinci-fixes-for-v3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: Fix McASP mem resource names Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-04Merge tag 'at91-cleanup' of git://github.com/at91linux/linux-at91 into ↵Olof Johansson
next/cleanup From Nicolas Ferre: AT91: Move to Common Clock Framework and sama5d3 implementation This is the first step to move AT91 to the CCF. - core CCF and drivers for most of the clocks - use of CCF for sama5d3 (100% DT-based) * tag 'at91-cleanup' of git://github.com/at91linux/linux-at91: (22 commits) ARM: at91/dt: remove old clk material ARM: at91: move sama5d3 SoC to common clk ARM: at91/dt: define sama5d3xek's main clk frequency ARM: at91/dt: define sama5d3 clocks ARM: at91: prepare common clk transition for sama5d3 SoC ARM: at91: prepare sama5 dt boards transition to common clk ARM: at91: add new compatible strings for pmc driver ARM: at91: move pit timer to common clk framework dt: binding: add at91 clks dt bindings documentation clk: at91: add PMC smd clock clk: at91: add PMC usb clock clk: at91: add PMC utmi clock clk: at91: add PMC programmable clocks clk: at91: add PMC peripheral clocks clk: at91: add PMC system clocks clk: at91: add PMC master clock clk: at91: add PMC pll clocks clk: at91: add PMC main clock clk: at91: add PMC macro file for dt definitions clk: at91: add PMC base support ... Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-04Merge commit 'fixes' into next/cleanupOlof Johansson
Merging in post-rc1 fixes that have gone into rc2/3 to avoid later conflicts. * commit 'fixes': (39 commits) arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk arm: socfpga: Enable ARM_TWD for socfpga ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16 ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support ARM: multi_v7_defconfig: enable network for BeagleBone Black ARM: dts: Fix the name of supplies for smsc911x shared by OMAP ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm ARM: dts: omap3-beagle: Add omap-twl4030 audio support ARM: dts: omap4-sdp: Fix pin muxing for wl12xx ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM ARM: at91: add usart3 alias to dtsi ARM: at91: sama5d3: reduce TWI internal clock frequency mmc: omap: Fix I2C dependency and make driver usable with device tree mmc: omap: Fix DMA configuration to not rely on device id ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13) ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi ARM: dts: AM33XX IGEP0033: add USB support ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support ARM: dts: AM33XX BASE0033: add pinmux and user led support ... Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-05ARM: davinci: Fix McASP mem resource namesPeter Ujfalusi
The ASoC McASP driver looks for the mem resources by name "mpu" and "dat" regions. Change/add the needed name for the mem resources so the driver can pick the correct resource. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-12-04Merge tag 'davinci-fixes-for-v3.13-rc1' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes From Sekhar Nori: This pull request contains a fixe for broken unbanked GPIO IRQ support and a fix for some random memory corruption. The bugs were introduced during v3.13 merge window. * tag 'davinci-fixes-for-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: fix number of resources passed to davinci_gpio_register() gpio: davinci: fix check for unbanked gpio
2013-12-04ARM: highbank: handle soft poweroff and reset key eventsRob Herring
Graceful reboot and poweroff via IPMI commands to the management processor don't work. Power and reset keys are events from the management processor which are generated via IPC messages. Passing the keys to userspace does not work as neither acpid nor a desktop environment are present. This adds a notifier handler for the IPC messages so the kernel can handle the key events directly and IPMI graceful shutdown will work. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: stable@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>