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* | ARM: socfpga: Upgrade clk driver for socfpga to make use of dts clock entriesDinh Nguyen2013-04-141-0/+6
| | | | | | | | | | | | | | | | | | With this patch, the socfpga clk driver is able to query the clock and clock rates appropriately. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* | ARM: socfpga: Enable soft resetDinh Nguyen2013-04-143-4/+20
|/ | | | | | | | | | | | | Enable a cold or warm reset to the HW from userspace. Also fix a few sparse errors: warning: symbol 'sys_manager_base_addr' was not declared. Should it be static? warning: symbol 'rst_manager_base_addr' was not declared. Should it be static? Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* Merge branch 'socfpga/hw' into next/socOlof Johansson2013-02-114-13/+31
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From Dinh Nguyen, this is a series of patches introducing support for socfpga hardware (Altera Cyclone5). It also includes a cleanup that moves some of the ARMv7 cache maintenance functions to a common location, since three other platforms aready implemented it separately. * socfpga/hw: arm: socfpga: Add SMP support for actual socfpga harware arm: Add v7_invalidate_l1 to cache-v7.S arm: socfpga: Add entries to enable make dtbs socfpga arm: socfpga: Add new device tree source for actual socfpga HW Trivial conflict in arch/arm/mach-tegra/headsmp.S. Signed-off-by: Olof Johansson <olof@lixom.net>
| * arm: socfpga: Add SMP support for actual socfpga harwareDinh Nguyen2013-02-114-12/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Because the CPU1 start address is different for socfpga-vt and socfpga-cyclone5, we add code to use the correct CPU1 start addr. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Signed-off-by: Pavel Machek <pavel@denx.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Olof Johansson <olof@lixom.net>
| * arm: socfpga: Add new device tree source for actual socfpga HWDinh Nguyen2013-02-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Up to this point, support for socfpga has only been on a virtual platform. Now that actual hardware is available, we add the appropriate device tree source files. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Tested-by: Pavel Machek <pavel@denx.de> Reviewed-by: Pavel Machek <pavel@denx.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Olof Johansson <olof@lixom.net>
* | Merge tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux ↵Olof Johansson2013-01-142-13/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into next/cleanup From Rob Herring: Initial irqchip init infrastructure and GIC and VIC clean-ups This creates irqchip initialization infrastructure from Thomas Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips and adapted to use the new infrastructure. All DT enabled platforms using GIC and VIC are converted over to use the new irqchip_init. * tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux: irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h ARM: picoxcell: use common irqchip_init function ARM: spear: use common irqchip_init function irqchip: Move ARM VIC to drivers/irqchip ARM: samsung: remove unused tick.h ARM: remove unneeded vic.h includes ARM: remove mach .handle_irq for VIC users ARM: VIC: set handle_arch_irq in VIC initialization ARM: VIC: shrink down vic.h irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h ARM: use common irqchip_init for GIC init irqchip: Move ARM GIC to drivers/irqchip ARM: remove mach .handle_irq for GIC users ARM: GIC: set handle_arch_irq in GIC initialization ARM: GIC: remove direct use of gic_raise_softirq ARM: GIC: remove assembly ifdefs from gic.h ARM: mach-ux500: use SGI0 to wake up the other core arm: add set_handle_irq() to register the parent IRQ controller handler function irqchip: add basic infrastructure irqchip: add to the directories part of the IRQ subsystem in MAINTAINERS Fixed up massive merge conflicts with the timer cleanup due to adjacent changes: Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-bcm/board_bcm.c arch/arm/mach-cns3xxx/cns3420vb.c arch/arm/mach-ep93xx/adssphere.c arch/arm/mach-ep93xx/edb93xx.c arch/arm/mach-ep93xx/gesbc9312.c arch/arm/mach-ep93xx/micro9.c arch/arm/mach-ep93xx/simone.c arch/arm/mach-ep93xx/snappercl15.c arch/arm/mach-ep93xx/ts72xx.c arch/arm/mach-ep93xx/vision_ep9307.c arch/arm/mach-highbank/highbank.c arch/arm/mach-imx/mach-imx6q.c arch/arm/mach-msm/board-dt-8960.c arch/arm/mach-netx/nxdb500.c arch/arm/mach-netx/nxdkn.c arch/arm/mach-netx/nxeb500hmi.c arch/arm/mach-nomadik/board-nhk8815.c arch/arm/mach-picoxcell/common.c arch/arm/mach-realview/realview_eb.c arch/arm/mach-realview/realview_pb1176.c arch/arm/mach-realview/realview_pb11mp.c arch/arm/mach-realview/realview_pba8.c arch/arm/mach-realview/realview_pbx.c arch/arm/mach-socfpga/socfpga.c arch/arm/mach-spear13xx/spear1310.c arch/arm/mach-spear13xx/spear1340.c arch/arm/mach-spear13xx/spear13xx.c arch/arm/mach-spear3xx/spear300.c arch/arm/mach-spear3xx/spear310.c arch/arm/mach-spear3xx/spear320.c arch/arm/mach-spear3xx/spear3xx.c arch/arm/mach-spear6xx/spear6xx.c arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-u300/core.c arch/arm/mach-ux500/board-mop500.c arch/arm/mach-ux500/cpu-db8500.c arch/arm/mach-versatile/versatile_ab.c arch/arm/mach-versatile/versatile_dt.c arch/arm/mach-versatile/versatile_pb.c arch/arm/mach-vexpress/v2m.c include/asm-generic/vmlinux.lds.h
| * | irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.hRob Herring2013-01-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Samuel Ortiz <sameo@linux.intel.com>
| * | ARM: use common irqchip_init for GIC initRob Herring2013-01-121-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert all GIC DT initialization over to use common irqchip_init function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org>
| * | ARM: remove mach .handle_irq for GIC usersRob Herring2013-01-121-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the GIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Stephen Warren <swarren@nvidia.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de>
| * | ARM: GIC: remove direct use of gic_raise_softirqRob Herring2013-01-101-2/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation of moving gic code to drivers/irqchip, remove the direct platform dependencies on gic_raise_softirq. Move the setup of smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask function to trigger wake-up IPIs. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Stephen Warren <swarren@nvidia.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Olof Johansson <olof@lixom.net>
* / ARM: delete struct sys_timerStephen Warren2012-12-241-1/+1
|/ | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: socfpga: mark secondary_trampoline as cpuinitArnd Bergmann2012-11-061-1/+1
| | | | | | | | | | | | | | | | The socfpga_boot_secondary is correctly marked as __cpuinit but references secondary_trampoline, which was introduced into the init section, causing this build warning: WARNING: vmlinux.o(.cpuinit.text+0xf90): Section mismatch in reference from the function socfpga_boot_secondary() to the variable .init.text:secondary_trampoline The function __cpuinit socfpga_boot_secondary() references a variable __init secondary_trampoline. If secondary_trampoline is only used by socfpga_boot_secondary then annotate secondary_trampoline with a matching annotation. The solution is to mark secondary_trampoline as cpuinit as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* socfpga: map uart into virtual address space so that early_printk() worksPavel Machek2012-11-051-0/+9
| | | | | | | | | | | Early printk code needs UART to be mapped early during boot. early_printk() is left there during the start-up; it is useful as our emulators are fairly slow. Signed-off-by: Pavel Machek <pavel@denx.de> Acked-by: Dinh Nguyen <dinguyen@altera.com> [olof: removed redundant newlines] Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: socfpga: fix build break for allyesconfigPavel Machek2012-10-271-0/+1
| | | | | | | | | | | | | Building a multiplatform kernel with combined armv7 and armv6 kernel does not work with the socfpga smp code, which contains v7-only instructions. Since this code never runs on armv6, we can annotate the assmebly with .arch armv7-a, as suggested by Russell King. [arnd: reword commit message] Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: socfpga: Enable SMP for socfpgaDinh Nguyen2012-10-266-1/+220
| | | | | | | | | Enable SMP for the SOCFPGA platform. Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: initial multiplatform supportRob Herring2012-09-144-29/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This lets us build a multiplatform kernel for experimental purposes. However, it will not be useful for any real work, because it relies on a number of useful things to be disabled for now: * SMP support must be turned off because of conflicting symbols. Marc Zyngier has proposed a solution by adding a new SOC operations structure to hold indirect function pointers for these, but that work is currently stalled * We turn on SPARSE_IRQ unconditionally, which is not supported on most platforms. Each of them is currently in a different state, but most are being worked on. * A common clock framework is in place since v3.4 but not yet being used. Work on this is on its way. * DEBUG_LL for early debugging is currently disabled. * THUMB2_KERNEL does not work with allyesconfig because the kernel gets too big [Rob Herring]: Rebased to not be dependent on the mass mach header rename. As a result, omap2plus, imx, mxs and ux500 are not converted. Highbank, picoxcell, mvebu, and socfpga are converted. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Acked-by: Jamie Iles <jamie@jamieiles.com> Cc: Dinh Nguyen <dinguyen@altera.com>
* ARM: socfpga: move debug macros to include/debugRob Herring2012-09-141-16/+0
| | | | | | | Move socfpga debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
* ARM: socfpga: initial support for Altera's SOCFPGA platformDinh Nguyen2012-07-196-0/+112
Adding core definitions for Altera's SOCFPGA ARM platform. Mininum support for Altera's SOCFPGA Cyclone 5 hardware. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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