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* x86/mrst: Fix boot crash caused by incorrect pin to irq mappingJacob Pan2011-04-121-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moorestown systems crash on boot because the secondary CPU clockevent (apbt1) will fail to request irq#1, which does not have ioapic chip in its irq_desc[] entry. Background: Moorestown platform does not have ISA bus nor legacy IRQs. It reuses the range of legacy IRQs for regular device interrupts. The routing information of early system device IRQs (timers) are obtained from firmware provided SFI tables. We reuse/fake MP configuration table to facilitate IRQ setup with IOAPIC. Maintaining a 1:1 mapping of IOAPIC pin (RTE entry) and IRQ# makes routing information clean and easy to understand on Moorestown. Though optional. This patch allows SFI timer and vRTC IRQ to be treated as ISA IRQ so that pin2irq mapping will be 1:1. Also fixed MP table type and use macros to clearly set MP IRQ entries. As a result, apbt timer and RTC interrupts on Moorestown are within legacy IRQ range: # cat /proc/interrupts CPU0 CPU1 0: 11249 0 IO-APIC-edge apbt0 1: 0 12271 IO-APIC-edge apbt1 8: 887 0 IO-APIC-fasteoi dw_spi 13: 0 0 IO-APIC-fasteoi INTEL_MID_DMAC2 14: 0 0 IO-APIC-fasteoi rtc0 Further discussion of this patch can be found at: https://lkml.org/lkml/2010/6/10/70 Suggested-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Link: http://lkml.kernel.org/r/1302286980-21139-1-git-send-email-jacob.jun.pan@linux.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86/mrst/vrtc: Fix boot crash in mrst_rtc_init()Feng Tang2011-04-071-1/+3
| | | | | | | | | | | | The sfi_mrtc_array[] only gets initialized when the sfi mrtc table is parsed, so the vrtc_paddr should be initalized after it too. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1302140389-27603-1-git-send-email-feng.tang@intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'devicetree/for-x86' of git://git.secretlab.ca/git/linux-2.6 ↵Thomas Gleixner2011-02-222-29/+3
|\ | | | | | | | | | | | | | | | | into x86/platform Reason: x86 devicetree support for ce4100 depends on those device tree changes scheduled for .39. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * Merge branch 'for-next' of ↵Linus Torvalds2011-01-131-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
| * | x86: Unify 3 similar ways of saving mp_irqs infoFeng Tang2010-12-091-28/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are 3 places defining similar functions of saving IRQ vector info into mp_irqs[] array: mmparse/acpi/mrst. Replace the redundant code by a common function in io_apic.c as it's only called when CONFIG_X86_IO_APIC=y Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Len Brown <len.brown@intel.com> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <20101207133204.4d913c5a@feng-i7> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | mrst/vrtc: Avoid using cmos rtc opsFeng Tang2011-02-142-12/+6
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | If we don't assign Moorestown specific wallclock init and ops function the rtc/persisent clock code will use cmos rtc for access, this will crash Moorestown in that the ioports are not present. Also in vrtc driver, should avoid using cmos access to check UIP status. [feng.tang@intel.com: use set_fixmap_offset_nocache() to simplify code] Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86, earlyprintk: Move mrst early console to platform/ and fix a typoFeng Tang2010-12-062-0/+320
| | | | | | | | | | | | | | | | | | | | Move the code to arch/x86/platform/mrst/. Also fix a typo to use the correct config option: ONFIG_EARLY_PRINTK_MRST Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: alan@linux.intel.com LKML-Reference: <1291348298-21263-1-git-send-email-feng.tang@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86, mrst: Check platform_device_register() return codeVasiliy Kulikov2010-11-181-2/+1
| | | | | | | | | | | | | | | | | | | | platform_device_register() may fail, if so propagate the return code from mrst_device_create(). Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> LKML-Reference: <1290104207-31279-1-git-send-email-segoon@openwall.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | x86: mrst: Set vRTC's IRQ to level trigger typeFeng Tang2010-11-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When setting up the mpc_intsrc structure for vRTC's IRQ, we need to set its irqflag to level trigger, otherwise it will be taken as edge triggered and the vRTC IRQ will fire only once, as there is never a EOI issued from the IA core for it. The original code worked in previous kernel. This is because it was configured to level trigger type by luck. It fell into the default PCI trigger category which is level triggered. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <20101111155019.12924.569.stgit@localhost.localdomain> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86: mrst: Add audio driver bindingsVinod Koul2010-11-111-0/+7
| | | | | | | | | | | | | | | | | | | | | | This patch adds the sound card bindings for Moorestown (pmic_audio) and the Medfield platform (msic_audio) as IPC devices. This ensures they will be created at the right time. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <20101110174044.11340.78008.stgit@localhost.localdomain> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | rtc: Add drivers/rtc/rtc-mrst.cFeng Tang2010-11-111-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | Provide the standard kernel rtc driver interface on top of the vrtc layer added in the previous patch. Signed-off-by: Feng Tang <feng.tang@intel.com> LKML-Reference: <20101110172911.3311.20593.stgit@localhost.localdomain> [Fixed swapped arguments on IPC] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> [Cleaned up and the device creation moved to arch/x86/platform] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86: mrst: Add vrtc driver which serves as a wall clock deviceFeng Tang2010-11-113-6/+121
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moorestown platform doesn't have a m146818 RTC device like traditional x86 PC, but a firmware emulated virtual RTC device(vrtc), which provides some basic RTC functions like get/set time. vrtc serves as the only wall clock device on Moorestown platform. [ tglx: Changed the exports to _GPL ] Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <20101110172837.3311.40483.stgit@localhost.localdomain> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86: mrst: Add Moorestown specific reboot/shutdown supportAlek Du2010-11-111-0/+16
| | | | | | | | | | | | | | | | | | | | Moorestowns needs to use a special IPC command to reboot or shutdown the platform. Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <20101110164928.6365.94243.stgit@localhost.localdomain> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86: mrst: Parse SFI timer table for all timer configsJacob Pan2010-11-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Penwell has APB timer based watchdog timers, it requires platform code to parse SFI MTMR tables in order to claim its timer. This patch will always parse SFI MTMR regardless of system timer configuration choices. Otherwise, SFI MTMR table may not get parsed if running on Medfield with always-on local APIC timers and constant TSC. Watchdog timer driver will then not get a timer to use. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> LKML-Reference: <20101109112800.20591.10802.stgit@localhost.localdomain> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | x86/mrst: Add SFI platform device parsing codeFeng Tang2010-11-091-4/+511
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SFI provides a series of tables. These describe the platform devices present including SPI and I²C devices, as well as various sensors, keypads and other glue as well as interfaces provided via the SCU IPC mechanism (intel_scu_ipc.c) This patch is a merge of the core elements and relevant fixes from the Intel development code by Feng, Alek, myself into a single coherent patch for upstream submission. It provides the needed infrastructure to register I2C, SPI and platform devices described by the tables, as well as handlers for some of the hardware already supported in kernel. The 0.8 firmware also provides GPIO tables. Devices are created at boot time or if they are SCU dependant at the point an SCU is discovered. The existing Linux device mechanisms will then handle the device binding. At an abstract level this is an SFI to Linux device translator. Device/platform specific setup/glue is in this file. This is done so that the drivers for the generic I²C and SPI bus devices remain cross platform as they should. (Updated from RFC version to correct the emc1403 name used by the firmware and a wrongly used #define) Signed-off-by: Alek Du <alek.du@linux.intel.com> LKML-Reference: <20101109112158.20013.6158.stgit@localhost.localdomain> [Clean ups, removal of 0.7 support] Signed-off-by: Feng Tang <feng.tang@linux.intel.com> [Clean ups] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: Move mrst to platformThomas Gleixner2010-10-272-0/+312
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jacob Pan <jacob.jun.pan@intel.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
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