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* ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynosKukjin Kim2011-11-061-225/+0
| | | | | | | | | | | | | | | | The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has made for plaforms based on EXYNOS4 SoCs. But since upcoming Samsung's SoCs such as EXYNOS5 (ARM Cortex A15) can reuse most codes in current mach-exynos4, one mach-exynos directory will be used for them. This patch changes to CONFIG_ARCH_EXYNOS (arch/arm/mach-exynos) but keeps original CONFIG_ARCH_EXYNOS4 in mach-exynos/Kconfig to avoid changing in driver side. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Merge branch 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-socLinus Torvalds2011-11-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-soc: arm/imx: use Kconfig choice for low-level debug UART selection ARM: realview: use Kconfig choice for debug UART selection ARM: plat-samsung: use Kconfig choice for debug UART selection ARM: versatile: convert logical CPU numbers to physical numbers ARM: ux500: convert logical CPU numbers to physical numbers ARM: shmobile: convert logical CPU numbers to physical numbers ARM: msm: convert logical CPU numbers to physical numbers ARM: exynos4: convert logical CPU numbers to physical numbers Fix up trivial conflict (config DEBUG_S3C_UART move/split vs addition of ARM_KPROBES_TEST option) in arch/arm/Kconfig.debug
| * ARM: exynos4: convert logical CPU numbers to physical numbersWill Deacon2011-10-171-1/+1
| | | | | | | | | | | | | | | | | | | | This patch uses the new cpu_logical_map() macro for converting logical CPU numbers into physical numbers when dealing with the pen_release variable in the SMP boot and CPU hotplug paths. Cc: Kukjin Kim <kgene.kim@samsung.com> Tested-and-acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* | Merge branch 'depends/rmk/devel-stable' into next/boardArnd Bergmann2011-11-011-6/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The exynos4 updates conflict with code from the arm devel-stable branch and new boards need to set atag_offset in place of boot_param. Conflicts: arch/arm/Kconfig arch/arm/mach-exynos4/include/mach/entry-macro.S arch/arm/mach-exynos4/mach-smdkc210.c arch/arm/mach-exynos4/mach-smdkv310.c arch/arm/mach-exynos4/mct.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | ARM: smp: fix clipping of number of CPUsRussell King2011-10-201-6/+4
| |/ | | | | | | | | | | | | | | | | | | Rather than clipping the number of CPUs using the compile-time NR_CPUS constant, use the runtime nr_cpu_ids value instead. This allows the nr_cpus command line option to work as expected. Cc: <stable@kernel.org> Reported-by: Mark Salter <msalter@redhat.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: EXYNOS4: Add functions for gic interrupt handlingChanghwan Youn2011-10-041-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds two functions for gic interrupt handling. 1. Add interrupt handling of 4 cores. 2. Dynamically set gic bank offset according to the type of soc. Gic bank offset of EXYNOS4412 is 0x4000 while the offset of EXYNOS4210 and EXYNOS4212 is 0x8000. This patch is necessary because EXYNOS4 socs cannot support GIC register banking as described in commit aab74d3e75364. Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | Merge branch 'next/topic-cpuid-rev' into next/topic-add-exynos4212Kukjin Kim2011-09-161-2/+6
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| * | ARM: EXYNOS4: Use samsung_rev() to distinguish silicon revisionKukjin Kim2011-08-241-2/+6
| |/ | | | | | | | | | | | | | | | | | | This patch uses samsung_rev() to support variable silicon revision of EXYNOS4210 so that can support for EXYNOS4210 REV0, REV1.0 and REV1.1. Note: Need to change timer setting on REV0. Acked-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* / ARM: EXYNOS4: Fix routing timer interrupt to offline CPUKukjin Kim2011-09-151-0/+2
|/ | | | | | | | | | | | | The commit 5dfc54e087c15f823ee9b6541d2f0f314e69cbed ("ARM: GIC: avoid routing interrupts to offline CPUs") prevents routing interrupts to offline CPUs. But in case of timer on EXYNOS4, the irq_set_affinity() method is called in percpu_timer_setup() before CPU1 becomes online. So this patch fixes routing timer interrupt to offline CPU. Reported-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Merge branch 'next/devel' of ↵Linus Torvalds2011-07-271-2/+55
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (128 commits) ARM: S5P64X0: External Interrupt Support ARM: EXYNOS4: Enable MFC on Samsung NURI ARM: EXYNOS4: Enable MFC on universal_c210 ARM: S5PV210: Enable MFC on Goni ARM: S5P: Add support for MFC device ARM: EXYNOS4: Add support FIMD on SMDKC210 ARM: EXYNOS4: Add platform device and helper functions for FIMD ARM: EXYNOS4: Add resource definition for FIMD ARM: EXYNOS4: Change devname for FIMD clkdev ARM: SAMSUNG: Add IRQ_I2S0 definition ARM: SAMSUNG: Add platform device for idma ARM: EXYNOS4: Add more registers to be saved and restored for PM ARM: EXYNOS4: Add more register addresses of CMU ARM: EXYNOS4: Add platform device for dwmci driver ARM: EXYNOS4: configure rtc-s3c on NURI ARM: EXYNOS4: configure MAX8903 secondary charger on NURI ARM: EXYNOS4: configure ADC on NURI ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI ARM: EXYNOS4: configure regulators and PMIC(MAX8997) on NURI ARM: EXYNOS4: Increase NR_IRQS for devices with more IRQs ... Fix up tons of silly conflicts: - arch/arm/mach-davinci/include/mach/psc.h - arch/arm/mach-exynos4/Kconfig - arch/arm/mach-exynos4/mach-smdkc210.c - arch/arm/mach-exynos4/pm.c - arch/arm/mach-imx/mm-imx1.c - arch/arm/mach-imx/mm-imx21.c - arch/arm/mach-imx/mm-imx25.c - arch/arm/mach-imx/mm-imx27.c - arch/arm/mach-imx/mm-imx31.c - arch/arm/mach-imx/mm-imx35.c - arch/arm/mach-mx5/mm.c - arch/arm/mach-s5pv210/mach-goni.c - arch/arm/mm/Kconfig
| * ARM: EXYNOS4: Add support Core1 Power On/Off with hotplug in/outJungHi Min2011-07-201-1/+29
| | | | | | | | | | | | | | | | | | | | To insert the code for power on/off with pmu control to support hotplug in/out core1 As for hotplug.c, the codes for core1 to be hotplug in/out is inserted. As for regs-pmu.h, S5P_CORE_LOCAL_PWR_EN is defined. As for platsmp.c, the codes for core1 to be powered on is inserted. Signed-off-by: JungHi Min <junghi.min@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * ARM: EXYNOS4: Add support external GICChanghwan Youn2011-07-201-1/+26
| | | | | | | | | | | | | | | | | | | | | | | | For full support of power modes, this patch adds implementation external GIC on EXYNOS4. External GIC of Exynos4 cannot support register banking so several interrupt related code for CPU1 should be different from that of CPU0. Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | ARM: 6993/1: platsmp: Allow secondary cpu hotplug with maxcpus=1Stephen Boyd2011-07-071-8/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | If an ARM system has multiple cpus in the same socket and the kernel is booted with maxcpus=1, secondary cpus are possible but not present due to how platform_smp_prepare_cpus() is called. Since most typical ARM processors don't actually support physical hotplug, initialize the present map to be equal to the possible map in generic ARM SMP code. Also, always call platform_smp_prepare_cpus() as long as max_cpus is non-zero (0 means no SMP) to allow platform code to do any SMP setup. After applying this patch it's possible to boot an ARM system with maxcpus=1 on the command line and then hotplug in secondary cpus via sysfs. This is more in line with how x86 does things. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: David Brown <davidb@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: consolidate SMP cross call implementationRussell King2011-05-231-1/+4
| | | | | | | | Rather than having each platform class provide a mach/smp.h header for smp_cross_call(), arrange for them to register the function with the core ARM SMP code instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: EXYNOS4: Add EXYNOS4 CPU initialization supportKukjin Kim2011-02-221-0/+172
This patch adds EXYNOS4 CPU support files in mach-exynos4, and basically they are moved from mach-s5pv310 so that it can support Samsung's new CPU name, EXYNOS4. The EXYNOS4 ingegrates a ARM Cortex A9 multi-core. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>