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2014-03-17Merge tag 'davinci-for-v3.15/soc' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/soc Merge "DaVinci SoC updates for v3.15" from Sekhar Nori: This pull request removes da8xx_omapl_defconfig enabling all ARMv5 davinci devices to be built using davinci_all_defconfig * tag 'davinci-for-v3.15/soc' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: remove da8xx_omapl_defconfig ARM: davinci: da8xx: fix multiple watchdog device registration ARM: davinci: add da8xx specific configs to davinci_all_defconfig ARM: davinci: enable da8xx build concurrently with older devices Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17ARM: davinci: remove tnetv107x supportArnd Bergmann
The tnetv107x support does not compile, and seems to have been broken for a while with nobody caring to fix it. So far everyone I asked said it's probably dead and completely unused and will never again be needed in a future kernel release, so let's delete it. If someone finds a use for this code later and is able to get it to work again, we can always revert the removal. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Kevin Hilman <khilman@linaro.org>
2014-03-17Merge tag 'armsoc/for-3.15/soc-3' of git://github.com/broadcom/mach-bcm into ↵Arnd Bergmann
next/soc Merge "ARM: mach-bcm: soc updates for 3.15 - part 2" from Matt Porter: - Add bcm21664 support - Use Kona Debug UART only on ARCH_BCM_MOBILE * tag 'armsoc/for-3.15/soc-3' of git://github.com/broadcom/mach-bcm: ARM: restrict BCM_KONA_UART to ARCH_BCM_MOBILE ARM: bcm21664: Add board support. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17Merge branch 'bcm/cleanup' into next/socArnd Bergmann
This is a dependency for the bcm21664 support. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17Merge tag 'sunxi-core-for-3.15' of https://github.com/mripard/linux into ↵Arnd Bergmann
next/soc Merge "Allwinner core additions for 3.15" from Maxime Ripard: Just a minor commit to adjust the restart code to take into account the new compatibles * tag 'sunxi-core-for-3.15' of https://github.com/mripard/linux: ARM: sunxi: Add the new watchog compatibles to the reboot code Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17Merge tag 'mvebu-soc-3.15-3' of git://git.infradead.org/linux-mvebu into ↵Arnd Bergmann
next/soc Merge "mvebu soc changes for v3.15 (incremental #3)" from Jason Cooper: - dove - move devicetree code from mach-dove/ to mach-mvebu/ :-) * tag 'mvebu-soc-3.15-3' of git://git.infradead.org/linux-mvebu: ARM: mvebu: move DT Dove to MVEBU Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17Merge tag 'mvebu-soc-3.15-2' of git://git.infradead.org/linux-mvebu into ↵Arnd Bergmann
next/soc Merge "mvebu soc changes for v3.15 (incremental pull #2)" from Jason Cooper: - mvebu - Add Armada 375, 380 and 385 SoCs - kirkwood - move kirkwood DT support to mach-mvebu - add mostly DT support for HP T5325 thin client * tag 'mvebu-soc-3.15-2' of git://git.infradead.org/linux-mvebu: ARM: kirkwood: Add HP T5325 thin client ARM: kirkwood: select dtbs based on SoC ARM: kirkwood: Remove redundant kexec code ARM: mvebu: Armada 375/38x depend on MULTI_V7 ARM: mvebu: Simplify headers and make local ARM: mvebu: Enable mvebu-soc-id on Kirkwood ARM: mvebu: Let kirkwood use the system controller for restart ARM: mvebu: Move kirkwood DT boards into mach-mvebu ARM: MM Enable building Feroceon L2 cache controller with ARCH_MVEBU ARM: Fix default CPU selection for ARCH_MULTI_V5 ARM: MM: Add DT binding for Feroceon L2 cache ARM: orion: Move cache-feroceon-l2.h out of plat-orion ARM: mvebu: Add ARCH_MULTI_V7 to SoCs ARM: kirkwood: ioremap memory control register ARM: kirkwood: ioremap the cpu_config register before using it. ARM: kirkwood: Separate board-dt from common and pcie code. ARM: kirkwood: Drop printing the SoC type and revision ARM: kirkwood: Convert mv88f6281gtw_ge switch setup to DT ARM: kirkwood: Give pm.c its own header file. ARM: mvebu: Rename the ARCH_MVEBU menu option Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17Merge tag 'renesas-soc3-for-v3.15' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Merge "Third Round of Renesas ARM Based SoC Updates for v3.15" from Simon Horman: Fix warnings due to improper printk formats in shared APMU code. * tag 'renesas-soc3-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: APMU: Fix warnings due to improper printk formats Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-17Merge tag 'renesas-soc2-for-v3.15' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Merge "Second Round of Renesas ARM Based SoC Updates for v3.15" from Simon Horman: * R-Car Gen2 SoCs: r8a7791 (R-Car M2) and r8a7790 (R-Car H2) - Remove __init from rcar_gen2_read_mode_pins() * r8a7791 (R-Car M2) - Use 64-bit dma_addr_t * r8a7790 (R-Car H2) - Add CA15-SCU, CA7-SCU - Add SYSC setup code - Use 64-bit dma_addr_t * tag 'renesas-soc2-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: Move SYSC base variable to inside ifdefs ARM: shmobile: Remove __init from rcar_gen2_read_mode_pins() ARM: shmobile: r8a7790 CA15-SCU enablement ARM: shmobile: r8a7790 CA7-SCU enablement ARM: shmobile: r8a7790 SYSC setup code ARM: shmobile: Break out R-Car SYSC PM code ARM: shmobile: Use 64-bit dma_addr_t on r8a7790/r8a7791 Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-14ARM: restrict BCM_KONA_UART to ARCH_BCM_MOBILEFlorian Fainelli
Low-level debugging using the Broadcom Kona UART only makes sense on the ARCH_BCM_MOBILE platform and would otherwise prevent ARCH_BCM_63XX from picking up the right UART implementation by default. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-14ARM: bcm21664: Add board support.Markus Mayer
Add support for the Broadcom BCM21664 mobile SoC. It has two Cortex-A9 cores like the BCM281xx family of chips. BCM21664 and BCM281xx share many IP blocks in addition to the ARM cores. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-14Merge tag 'armsoc/for-3.15/soc-2' into armsoc/for-3.15/soc-3Matt Porter
ARM: mach-bcm soc updates - add BCM5301x support - remove GENERIC_TIME
2014-03-13ARM: sunxi: Add the new watchog compatibles to the reboot codeMaxime Ripard
Now that the watchdog driver has new compatibles, we need to support them in the machine reboot code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-11Merge tag 'armsoc/for-3.15/soc-2' of git://github.com/broadcom/mach-bcm into ↵Olof Johansson
next/soc Merge "ARM: mach-bcm soc updates" from Matt Porter: - add BCM5301x support - remove GENERIC_TIME * tag 'armsoc/for-3.15/soc-2' of git://github.com/broadcom/mach-bcm: ARM: BCM5301X: workaround suppress fault ARM: BCM5301X: add early debugging support ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPU ARM: mach-bcm: Remove GENERIC_TIME Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-09ARM: enable ARM_HAS_SG_CHAIN for multiplatformOlof Johansson
Enable ARM_HAS_SG_CHAIN for all multiplatform targets, it makes sense to enable on all "modern" platforms; downsides are limited for platforms that don't need it. Requested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-09Merge tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson
into next/soc i.MX SoC changes for 3.15 from Shawn Guo: - Support suspend from ocram (DDR IO floating) for imx6 platforms - Add cpuidle support for imx6sl - Sparse warning fixes for imx6sl and vf610 clock code - Remove PWM platform code - Support ptp and rmii clock from pad - Support WEIM CS GPR configuration - Random cleanups and defconfig updates * tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6: (373 commits) ARM: imx6: drop .text.head section annotation from headsmp.S ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6 ARM: imx6: rename pm-imx6q.c to pm-imx6.c ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuff ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPEND ARM: imx6: call suspend_set_ops() from suspend routine ARM: imx6: build headsmp.o only on CONFIG_SMP ARM: imx6: move v7_cpu_resume() into suspend-imx6.S ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priority ARM: imx6q: Add GPR6 and GPR7 register definitions for iomuxc gpr bus: imx-weim: support CS GPR configuration ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53 ARM: imx_v6_v7_defconfig: Select CONFIG_DEBUG_FS ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC level ARM: imx: add speed grading check for i.mx6 soc ARM: imx: avoid calling clk APIs in idle thread which may cause schedule ARM: imx6q: support ptp and rmii clock from pad ARM: imx6q: remove unneeded clk lookups ARM: imx_v6_v7_defconfig: Select CONFIG_MMC_UNSAFE_RESUME ARM: imx_v4_v5_defconfig: Select CONFIG_MMC_UNSAFE_RESUME ...
2014-03-08Merge tag 'omap-for-v3.15/prcm-signed' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc Power, reset and clock related changes via Paul Walmsley <paul@pwsan.com>, via Tony Lindgren: Some low-level optimizations and fixes that don't belong in an -rc series for various OMAP-family chips, targeted for v3.15. Basic build, boot, and PM test logs are available here: http://www.pwsan.com/omap/testlogs/prcm-a-for-v3.15/20140228124518/ * tag 'omap-for-v3.15/prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP3+: DPLL: stop reparenting to same parent if already done ARM: OMAP2+: clock: fix rate prints ARM: AM43x: hwmod data: register spinlock OCP interface ARM: OMAP2+: clockdomain: Reintroduce SW_SLEEP Support ARM: OMAP2+: AM43xx: implement support for machine restart Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08Merge tag 'omap-for-v3.15/soc-signed' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc OMAP SoC changes from Tony Lindgren: Few SoC related improvments for omaps. * tag 'omap-for-v3.15/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: remove OMAP_PACKAGE_ZAC and OMAP_PACKAGE_ZAF ARM: OMAP2+: AM43x: Use gptimer as clocksource ARM: OMAP2+: AM43x: determine features ARM: OMAP2+: AM43x: Add ID for ES1.1 ARM: OMAP2+: AM43x: enable in default config Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08Merge tag 'v3.15-rockchip-smp' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc Merge Rockchip SMP support from Heiko Stübner: SMP-support for RK3066 and RK3188 SoCs from Rockchip. * tag 'v3.15-rockchip-smp' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: rockchip: add smp bringup code ARM: rockchip: add power-management-unit ARM: rockchip: add sram dt nodes and documentation ARM: rockchip: add snoop-control-unit Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-06ARM: davinci: remove da8xx_omapl_defconfigSekhar Nori
Remove da8xx_omapl_defconfig. Use davinci_all_defconfig for da830 and da850 as well. Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-03-06ARM: davinci: da8xx: fix multiple watchdog device registrationSekhar Nori
Fix multiple watchdog device registration on da8xx devices due to davinci_init_devices blindly registering watchdog device. Fix this by getting rid of the initcall and instead registering watchdog for each soc. Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-03-06ARM: davinci: add da8xx specific configs to davinci_all_defconfigSekhar Nori
Add da8xx specific configs to davinci_all_defconfig so it can be used to support da830 and da850. Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-03-06ARM: davinci: enable da8xx build concurrently with older devicesSekhar Nori
Enable da8xx devices to build concurrently with older (traditional) DaVinci devices. Do this by defining multiple zreladdr values and enabling AUTO_ZRELADDR to prevent build regressions. Note that we do not enable AUTO_ZRELADDR in da8xx_omapl_defconfig since it is meant to be removed. Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-03-06ARM: bcm281xx: Rename board_init() functionMarkus Mayer
Rename board_init() to bcm281xx_init(), so the name reflects the board specific nature of this function. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: bcm281xx: Re-order hearder filesMarkus Mayer
Re-order header files alphabetically. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: bcm281xx: Consolidate reboot codeMarkus Mayer
Consolidate reboot code and remove unnecessary functions. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: bcm281xx: Move kona_l2_cache_init() so it can be sharedMarkus Mayer
In preparation for future SoCs, move kona_l2_cache_init() from board specific board_bcm281xx.c to shared kona.c, so multiple SoC families can make use of it. Also change the return type to "void", since we never look at the return code anyway. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: bcm281xx: symbol cleanupAlex Elder
This patch renames a few symbols that needlessly used "11351" rather than "281xx" in their names. Support for the bcm11351 board is being removed from the kernel, and the family of boards is more properly referred to as "bcm281xx". Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: BCM5301X: workaround suppress faultHauke Mehrtens
Without this patch I am getting a unhandled fault exception like this one after "Freeing unused kernel memory": Freeing unused kernel memory: 1260K (c02c1000 - c03fc000) Unhandled fault: imprecise external abort (0x1c06) at 0xb6f89005 Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 The address which is here 0xb6f89005 changes from boot to boot, with a new build the changes are bigger. With kernel 3.10 I have also seen this fault at different places in the boot process, but starting with 3.11 they are always occurring after the "Freeing unused kernel memory" message. I never was able to completely boot to userspace without this handler. The abort code is constant 0x1c06. This fault just happens once in the boot process I have never seen it happing twice or more. I also tried changing the CPSR.A bit to 0 in init_early, with this code like Afzal suggested, but that did not change anything: asm volatile("mrs r12, cpsr\n" "bic r12, r12, #0x00000100\n" "msr cpsr_c, r12" ::: "r12", "cc", "memory"); Disabling the L2 cache by building with CONFIG_CACHE_L2X0 unset did not help. This workaround was copied from the vendor code including most of the comments. It says it they think this is caused by the CFE boot loader used on this device. I do not have any access to any datasheet or errata document to check this. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Christian Daudt <bcm@fixthebug.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: BCM5301X: add early debugging supportHauke Mehrtens
This adds support for early debugging of BCM5301X SoC. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Christian Daudt <bcm@fixthebug.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPUHauke Mehrtens
This patch adds support for the BCM5301X/BCM470X SoCs with an ARM CPUs. Currently just booting to a shell is working and nothing else, no Ethernet, wifi, flash, ... I have some pending patches to make Ethernet work for this device. Mostly device tree support for bcma is missing. This SoC is used in small office and home router with Broadcom SoCs it's internal name is Northstar. This code should support the BCM4707, BCM4708, BCM4709, BCM53010, BCM53011 and BCM53012 SoC. It uses one or two ARM Cortex A9 Cores, some highlights are 2 PCIe 2.0 controllers, 4 Gigabit Ethernet MACs and a USB 3.0 host controller. This SoC uses a dual core CPU, but this is currently not implemented. More information about this SoC can be found here: http://www.anandtech.com/show/5925/broadcom-announces-bcm4708x-and-bcm5301x-socs-for-80211ac-routers Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Christian Daudt <bcm@fixthebug.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: mach-bcm: Remove GENERIC_TIMERichard Weinberger
The symbol is an orphan, get rid of it. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Christian Daudt <bcm@fixthebug.org> Signed-off-by: Matt Porter <mporter@linaro.org>
2014-03-06ARM: shmobile: APMU: Fix warnings due to improper printk formatsLaurent Pinchart
Use the %pr printk specifier to print resource variables. This fixes warnings on platforms where resource_size_t has a different size than int. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-03-05ARM: imx6: drop .text.head section annotation from headsmp.SShawn Guo
The function v7_secondary_startup() works just fine in .text section, so there is no need to have .text.head section annotation at all. Drop it. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6Shawn Guo
Even when CONFIG_SUSPEND is enabled, it makes no sense to build suspend-imx6.o if none of i.MX6 support is built in. Let's build suspend-imx6.o only when both CONFIG_SUSPEND and CONFIG_SOC_IMX6 are enabled. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: rename pm-imx6q.c to pm-imx6.cShawn Guo
The pm-imx6q.c works for all i.MX6 SoCs, so let's rename it to pm-imx6.c and have the build controlled by option CONFIG_SOC_IMX6. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuffShawn Guo
The i.MX6 SoCs have something in common, so let's introduce CONFIG_SOC_IMX6 for those stuff. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPENDShawn Guo
When CONFIG_SUSPEND is not enabled, we should reasonably skip the call to imx6q_suspend_init(). Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: call suspend_set_ops() from suspend routineShawn Guo
Rename function imx6q_ocram_suspend_init() to imx6q_suspend_init() and call suspend_set_ops() from there. Now we get a centralized function for suspend initialization. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: build headsmp.o only on CONFIG_SMPShawn Guo
With v7_cpu_resume() being moved out of headsmp.S, all the remaining code in the file is only needed by CONFIG_SMP build. So we can control the build of headsmp.o with only obj-$(CONFIG_SMP) now. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6: move v7_cpu_resume() into suspend-imx6.SShawn Guo
The suspend-imx6.S is introduced recently for suspend low-level assembly code. Since function v7_cpu_resume() is only used by suspend support, it makes sense to move the function into suspend-imx6.S, and control the build of the file with CONFIG_SUSPEND option. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priorityPhilipp Zabel
This is needed so that the IPU framebuffer scanout cannot be starved by VPU or GPU activity. Some boards like the SabreLite and SabreSD seem to set this in the DCD already, but the documented register reset values do not contain the necessary settings. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53Fabio Estevam
SOC_IMX53 is a device-tree only platform, so we don't need IMX_HAVE_PLATFORM_IMX2_WDT at all because this symbol only provides some code to help register imx2-wdt platform devices. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx_v6_v7_defconfig: Select CONFIG_DEBUG_FSFabio Estevam
CONFIG_DEBUG_FS is a very useful debug option as it allow us to access key data such as the clock tree, for example: mount -t debugfs debugfs /sys/kernel/debug cat /sys/kernel/debug/clk/clk_summary Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC levelFabio Estevam
Booting a mx6q system built with multi_v7_defconfig leads to the following error messages on boot: [ 0.037758] imx6q_ocram_suspend_init: ocram pool unavailable! [ 0.037768] imx6_pm_common_init: failed to initialize ocram suspend -19! This happens because CONFIG_SRAM is not selected by default in multi_v7_defconfig. Fix this by selecting CONFIG_SRAM at ARCH_MXC level, so that other SoCs could use the SRAM driver as well. As SRAM automatically selects GENERIC_ALLOCATOR, just drop it from the Kconfig entry. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx: add speed grading check for i.mx6 socAnson Huang
The fuse map of speed_grading[1:0] defines the max speed of ARM, see below the definition: 2b'11: 1200000000Hz; 2b'10: 996000000Hz; 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz. 2b'00: 792000000Hz; Need to remove all illegal setpoints according to fuse map. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx: avoid calling clk APIs in idle thread which may cause scheduleAnson Huang
As clk_pllv3_wait_lock will call usleep_range, and the clk APIs mutex lock may be held when CPU entering idle, so calling clk APIs must be avoided in cpu idle thread, this is to avoid reschedule warning in cpu idle, just access register directly to achieve that. bad: scheduling from the idle thread! CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.0-rc1+ #657 Backtrace: [<80012188>] (dump_backtrace) from [<8001246c>] (show_stack+0x18/0x1c) r6:808c0038 r5:00000000 r4:808e5a1c r3:00000000 [<80012454>] (show_stack) from [<8064b2ec>] (dump_stack+0x84/0x9c) [<8064b268>] (dump_stack) from [<80055ee0>] (dequeue_task_idle+0x20/0x30) r5:808bef40 r4:bf7dff40 [<80055ec0>] (dequeue_task_idle) from [<8004f028>] (dequeue_task+0x30/0x50) r4:bf7dff40 r3:80055ec0 [<8004eff8>] (dequeue_task) from [<800503c0>] (deactivate_task+0x30/0x34) r4:bf7dff40 [<80050390>] (deactivate_task) from [<8064d8e4>] (__schedule+0x2c8/0x5c0) [<8064d61c>] (__schedule) from [<8064dc14>] (schedule+0x38/0x88) r10:80912964 r9:808c1e50 r8:808c0038 r7:808cbf30 r6:80e128ec r5:60000093 r4:80912968 [<8064dbdc>] (schedule) from [<8064dfec>] (schedule_preempt_disabled+0x10/0x14) [<8064dfdc>] (schedule_preempt_disabled) from [<8064ebc0>] (mutex_lock_nested+0x1c0/0x3c0) [<8064ea00>] (mutex_lock_nested) from [<804ae71c>] (clk_prepare_lock+0x44/0xe4) r10:806554cc r9:bf7df1bc r8:808cf4f8 r7:808cf544 r6:bf7df1b8 r5:808c0010 r4:80e69750 [<804ae6d8>] (clk_prepare_lock) from [<804af214>] (clk_get_rate+0x14/0x64) r6:bf7df1b8 r5:00000002 r4:bf017000 r3:80922ad0 [<804af200>] (clk_get_rate) from [<80025d30>] (imx6sl_set_wait_clk+0x18/0x20) r5:00000002 r4:00000001 [<80025d18>] (imx6sl_set_wait_clk) from [<80023454>] (imx6sl_enter_wait+0x20/0x48) [<80023434>] (imx6sl_enter_wait) from [<80477c24>] (cpuidle_enter_state+0x44/0xfc) r4:3c386e48 r3:80023434 [<80477be0>] (cpuidle_enter_state) from [<80477dd8>] (cpuidle_idle_call+0xfc/0x160) r8:808cf4f8 r7:00000001 r6:80e69534 r5:00000000 r4:bf7df1b8 [<80477cdc>] (cpuidle_idle_call) from [<8000f61c>] (arch_cpu_idle+0x10/0x50) r9:808c0000 r8:00000000 r7:80921a89 r6:808c8938 r5:808c899c r4:808c0000 [<8000f60c>] (arch_cpu_idle) from [<8006fa94>] (cpu_startup_entry+0x108/0x160) [<8006f98c>] (cpu_startup_entry) from [<806452ac>] (rest_init+0xb4/0xdc) r7:808afae0 [<806451f8>] (rest_init) from [<8086fb58>] (start_kernel+0x328/0x38c) r6:ffffffff r5:808c8880 r4:808c8a30 [<8086f830>] (start_kernel) from [<80008074>] (0x80008074) Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6q: support ptp and rmii clock from padShawn Guo
On imx6qdl, the ENET RMII and PTP clock can come from either internal ANATOP/CCM or external clock source through pad GPIO_16. But in case of the external clock source, bit IOMUXC_GPR1[21] needs to be cleared. The patch adds the support for systems that use an external clock source and distinguishes above two cases by checking if the PTP clock specified in device tree is the one coming from the internal ANATOP/CCM. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx6q: remove unneeded clk lookupsShawn Guo
Since commit (a94f8ec ARM: imx6q: remove board specific CLKO setup), a number of clk lookups in imx6q clock driver is no longer needed. Let's remove them. The cpu0 lookup is also removed since we are now running imx6 cpufreq driver and looking up clocks from device tree. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05ARM: imx_v6_v7_defconfig: Select CONFIG_MMC_UNSAFE_RESUMEFabio Estevam
PM subsystem treats mmc card as removed during suspend. If MMC is used to store the root file system, it is better to tell the kernel not to treat it as a removable media, so select CONFIG_MMC_UNSAFE_RESUME for such purpose. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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