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| | | * | | | | | | | | | | OMAP: powerdomain: Fix overflow when doing powerdomain deps lookups.Paul Walmsley2009-09-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the end of the list pd is a pointer to a NULL struct, so checking if the address == NULL doesn't help here. In fact the original code will just keep running past the struct to read who knows what in memory. This case manifests itself when from clkdms_setup() when enabling auto idle for a clock domain and the clockdomain usecount is greater than 0. When _clkdm_add_autodeps() tries to add the a dependency that does not exist in the powerdomain->wkdep_srcs array the for loop will run past the wkdep_srcs array. Currently in linux-omap you won't hit this because the not found case is never executed, unless you start modifying powerdomains and their wakeup/sleep deps. Signed-off-by: Mike Chan <mike@android.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | | | | | | | | | Merge branch 'pm-upstream/debug' of ↵Tony Lindgren2009-09-02
| | |\ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into for-next
| | | * | | | | | | | | | | | OMAP: PM: Added suspend target state control to debugfs for OMAP3Tero Kristo2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Target state can be read / programmed via files under: [debugfs]/pm_debug/[pwrdm]/suspend Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM debug: Add PRCM register dump supportTero Kristo2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allows dumping out current register contents from the debug filesystem, and also allows user to add arbitrary register save points into code. Current register contents are available under debugfs at: [debugfs]/pm_debug/registers/current To add a save point, do following: From module init (or somewhere before the save call, called only once): pm_dbg_init_regset(n); // n=1..4, allocates memory for dump area #n From arbitrary code location: pm_dbg_regset_save(n); // n=1..4, saves registers to dump area #n After this, the register dump can be seen under [debugfs]/pm_debug/registers/n Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM debug: make powerdomains use PM-debug countersPeter 'p2' De Schrijver2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the powerdomain code call the new hook for updating the time. Also implement the updated pwrdm_for_each. Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM: Add pm-debug countersPeter 'p2' De Schrijver2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides the debugfs entries and a function which will be called by the PM code to register the time spent per domain per state. Also some new fields are added to the powerdomain struct to keep the time information. NOTE: As of v2.6.29, using getnstimeofday() after drivers are suspended is no longer safe since the timekeeping subsystem is also suspended as part of the suspend process. Instead use sched_clock() which on OMAP returns the 32k SYNC timer in nanoseconds. Also, do not print out status for meta powerdomains (dpll*) Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each.Peter 'p2' De Schrijver2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some infrastructure to easily iterate over clock and power domains. Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM: Hook into PM countersPeter 'p2' De Schrijver2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies the clock, clockdomain and OMAP3 specific powerdomain code to call the PM counter infrastructure whenever one or more powerdomains might have changed state. Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | | | | | | | | | OMAP: PM counter infrastructure.Peter 'p2' De Schrijver2009-09-02
| | | |/ / / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides the infrastructure to count how many times a powerdomain entered a given power state (on, inactive, retention, off). A number of functions are provided which will be called by the chip specific powerdomain and clockdomain code whenever a transition might have happened. Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | OMAP3: PM: fix lockdep warning caused by omap3_pm_initMing Lei2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses kmalloc(size,GFP_ATOMIC) instead of kmalloc(size,GFP_KERNEL) to allocate memory for instance of struct power_state in pwrdms_setup(), since it may be called by pwrdm_for_each() with irq disabled. It is a easy fix for the following lockdep warning caused by kmalloc(size,GFP_KERNEL) in pwrdms_setup(): Power Management for TI OMAP3. ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2282 lockdep_trace_alloc+0xe8/0xfc() Modules linked in: [<c0032ccc>] (unwind_backtrace+0x0/0xec) from [<c0056934>] (warn_slowpath_common+0x48/0x60) [<c0056934>] (warn_slowpath_common+0x48/0x60) from [<c007da10>] (lockdep_trace_alloc+0xe8/0xfc) [<c007da10>] (lockdep_trace_alloc+0xe8/0xfc) from [<c00cd9bc>] (kmem_cache_alloc+0x28/0x178) [<c00cd9bc>] (kmem_cache_alloc+0x28/0x178) from [<c000f184>] (pwrdms_setup+0x30/0xf8) [<c000f184>] (pwrdms_setup+0x30/0xf8) from [<c00381c4>] (pwrdm_for_each+0x64/0x84) [<c00381c4>] (pwrdm_for_each+0x64/0x84) from [<c000ef60>] (omap3_pm_init+0x3f4/0x5ac) [<c000ef60>] (omap3_pm_init+0x3f4/0x5ac) from [<c002c2c0>] (do_one_initcall+0x30/0x1d4) [<c002c2c0>] (do_one_initcall+0x30/0x1d4) from [<c00088d8>] (kernel_init+0xa4/0x118) [<c00088d8>] (kernel_init+0xa4/0x118) from [<c002ddf8>] (kernel_thread_exit+0x0/0x8) ---[ end trace 1e06f8d97dc5a19b ]--- Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | OMAP: Zoom2: release debug board detect gpio lineVikram Pandita2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Release the Dbg board detection gpio once its purpose is served Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | OMAP3: PM: add T2 interrupt line mux setting, and enable on 3430SDPReddy, Teerth2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes for setting the padconf value for sys_nirq line which is connected to T2 INTR1. This will fix the T2 keypad wakeup issue on OMAP3 SDP. Signed-off-by: Teerth Reddy <teerth@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | MUSB: Remove usb_musb_pm_init() callAnand Gadiyar2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In usb_musb_pm_init, we attempt to access an MUSB register when the i-clock may not be on, or the module is otherwise not accessible. We need to either: - enable the clock before this access, or - remove this code and move it to the bootloader, or - enable the clock in the bootloader If we enable the clock in the bootloader, we might as well add the workaround in the bootloader itself. This code will anyway be changed once hwmod is in place, so remove it for now This allows us to boot the kernel on certain OMAP3 boards with a bootloader that doesn't enable this clock. Without this, we will need to upgrade the bootloaders on these boards. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | OMAP: Zoom2: update serial platform_data id for external UARTVikram Pandita2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that on-chip UARTs each have separate platform_data, the external UART needs an non-conflicting ID. Since there are 3 on-chip UARTs, the Zoom2 external UART will be registered after as the fourth. Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | ARM: OMAP4: Bypass the clock check.Santosh Shilimkar2009-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Second reason of OMAP4 boot failure on 2.6.31.rc6, the UART platform data is not getting registered to kernel. Registration was failing because of clock check failure in omap_serial_init(). Below patch fix the same. OMAP4 clock framework patches are still getting discussed on mailing list so till then we need this. Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | | ARM: OMAP4: Fix NULL pointer dereference crash.Santosh Shilimkar2009-09-02
| | |/ / / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the patch series "[PATCH 00/14] OMAP PM fixes for .31-rc" merge in 2.6.31-rc5, the kernel crashed during boot on OMAP4430. This patch fixes it by adding UART4 support and related code. Without this patch omap_serial_init() would produce " NULL pointer dereference" and kernel crashes in the bootup on OMAP4430 platform. Some more info on the merge issue can be found here. More info- http://lkml.org/lkml/2009/8/20/192 Note: While merging this patch,"IO_ADDRESS" needs to be changed to "OMAP2_IO_ADDRESS" if the Tony's below series is already merged in. http://www.mail-archive.com/linux-omap@vger.kernel.org/msg15072.html Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | * | | | | | | | | | | OMAP3: update OMAP3 Beagle defconfigPaul Walmsley2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the OMAP3 Beagle defconfig to add EHCI, MMC, TWL4030 GPIO support. Beagle can again use MMC rootfs after this patch. Tested on BeagleBoard rev C2. Patch updated to enable PM and OTG options as suggested by Eric Witcher <ewitcher@mindspring.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Jason Kridner <jkridner@beagleboard.org> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: beagle: add missing twl4030 usb platform_dataFelipe Balbi2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | without it twl4030_usb driver will not probe. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: Zoom2: Update board defconfigVikram Pandita2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update defconfig for Zoom2 to include TWL4030 core TWL4030 drivers (bci, gpio, keypad, usb, mmc) Also sync the defconfig after issuing a menuconfig Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: Zoom2: Add TWL4030 supportVikram Pandita2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add TWL4030 CORE and TWL4030 drivers to Zoom2 board file TWL drivers enabled are: bci madc usb keypad mmc Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: MMC: Add mux for pinsVikram Pandita2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are multiple configurations possible, so the muxing is left to be done in board file. Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Chikkature Rajashekar <madhu.cr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: rx51_defconfig: add twl4030 to rx51 default configurationTimo Kokkonen2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | twl4030 watchdog will be compiled as a module by default. Signed-off-by: Atal Shargorodsky <ext-atal.shargorodsky@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP3: 3430SDP: Fix defconfigSergio Aguirre2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the SDP boot again with the defconfig. Changes done: - Removes other selected boards. - Sets the Low Level debug output for UART1. - Disables some paripherals from other boards. Tested on a SDP3430-VE5.1.0 (OMAP3430 ES3.1) Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP2/3: Pass irqflags to 8250 driverVikram Pandita2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass irqflags to 8250 driver with platform_data. At least Zoom2 has IRQF_TRIGGER_RISING requirement for the 8250 GPIO irq. This patch is dependent on 8250 driver changes getting accepted upstream: http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=7053133124d5cdf207c1168c7a0c582a18e12ea7 Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: iommu: add initial debugfs supportHiroshi DOYU2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables to peek the following data. $ /debug/iommu/isp# ls mem nr_tlb_entries regs mmap pagetable tlb $ /debug/iommu/isp# head pagetable L: da: pa: ----------------------------------------- 2: 00001000 8ae4a002 2: 00002000 8e7bb002 2: 00003000 8ae49002 2: 00004000 8ae65002 ..... Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: iommu: fix wrong argument in flush_cache_vmap()Hiroshi DOYU2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The second argument should be the end address, not the length. Actually there will not be any effect on the behavior of this driver since flush_cache_vmap() calls flush_cache_all() in the end. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP2: n8x0: add n8x0_defconfigKalle Valo2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add defconfig file for OMAP2 N800 and N810 devices. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP2: add board file for Nokia N800 and N810Kalle Valo2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add board file for Nokia N800 and N810 devices. Currently only serial ports, onenand and spi are configured, more to come later. Tested on Nokia N800. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP2: compile usb-tusb6010.cKalle Valo2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For some reason usb-tusb6010.c was't compiled, add it to Makefile and Kconfig. This is prepraration for upcoming n8x0 support. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP1: AMS_DELTA: add modem supportJanusz Krzysztofik2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for modem device found on Amstrad E3 (Delta) board. Based on earlier patch by Jonathan McDowell, available at http://the.earth.li/pub/e3/2.6.19/ams-delta-modem.patch. Modified after Ladislav Michl's arch/arm/mach-omap1/board-voiceblue.c. This patch is dependent on 8250 driver changes getting accepted upstream: http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=7053133124d5cdf207c1168c7a0c582a18e12ea7 Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: GPIO: Avoid generating extra IRQsEero Nurkkala2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible for GPIO IRQ lines configured with falling edge triggering only to get IRQs at the rising edge upon the exit of offmode. And vice versa. Prevent such IRQs to arrive by generating the IRQ obeying the detection scheme. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: Remove omap boot parsing codeRoger Quadros2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove left over code for parsing omap boot tags. This is no longer used. see commit fc0ef1bfa1353e048e055374a09c75320d22231b Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: UART: drop OMAP_TAG_UART, enable all UARTs, auto-disabled on idleKalle Valo2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP tags are deprecrated so drop them. Drop UART config data which decides which UARTs to enable during boot. This is no longer necessary since serial core code disables clocks after inactivity. Background: with new UART idle code, all on-chip UARTs are idled using a configurable inactivity timer (default 5 seconds.) After the inactivity timer, UART clocks are disabled automatically. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: remove OMAP_TAG_SERIAL_CONSOLEKalle Valo2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Omap tags are deprecated and remove OMAP_TAG_SERIAL_CONSOLE. Console must be enabled with the console boot parameter instead. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: Remove ifdefs for io.hTony Lindgren2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove ifdefs for io.h Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASETony Lindgren2009-08-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASE Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | | | | | OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS insteadTony Lindgren2009-08-28
| | | |_|/ / / / / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | | | | | Merge branch 'timers-for-linus' of ↵Linus Torvalds2009-09-18
| |\ \ \ \ \ \ \ \ \ \ \ | | |_|_|/ / / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (34 commits) time: Prevent 32 bit overflow with set_normalized_timespec() clocksource: Delay clocksource down rating to late boot clocksource: clocksource_select must be called with mutex locked clocksource: Resolve cpu hotplug dead lock with TSC unstable, fix crash timers: Drop a function prototype clocksource: Resolve cpu hotplug dead lock with TSC unstable timer.c: Fix S/390 comments timekeeping: Fix invalid getboottime() value timekeeping: Fix up read_persistent_clock() breakage on sh timekeeping: Increase granularity of read_persistent_clock(), build fix time: Introduce CLOCK_REALTIME_COARSE x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown clocksource: Avoid clocksource watchdog circular locking dependency clocksource: Protect the watchdog rating changes with clocksource_mutex clocksource: Call clocksource_change_rating() outside of watchdog_lock timekeeping: Introduce read_boot_clock timekeeping: Increase granularity of read_persistent_clock() timekeeping: Update clocksource with stop_machine timekeeping: Add timekeeper read_clock helper functions timekeeping: Move NTP adjusted clock multiplier to struct timekeeper ... Fix trivial conflict due to MIPS lemote -> loongson renaming.
| | * | | | | | | | | | timekeeping: Move NTP adjusted clock multiplier to struct timekeeperMartin Schwidefsky2009-08-15
| | | |_|_|_|_|_|/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clocksource structure has two multipliers, the unmodified multiplier clock->mult_orig and the NTP corrected multiplier clock->mult. The NTP multiplier is misplaced in the struct clocksource, this is private information of the timekeeping code. Add the mult field to the struct timekeeper to contain the NTP corrected value, keep the unmodifed multiplier in clock->mult and remove clock->mult_orig. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Daniel Walker <dwalker@fifo99.com> LKML-Reference: <20090814134810.149047645@de.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | | | | | | | | | Merge branch 'master' into for-linusRussell King2009-09-22
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| * | | | | | | | | | | ARM: 5719/1: [AT91] Fix AC97 breakageAndrew Victor2009-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix AC97 build breakage with converting to the shared AT91/AVR32 AC97 driver: struct atmel_ac97_data -> struct ac97c_platform_data CONFIG_SND_AT91_AC97 -> CONFIG_SND_ATMEL_AC97C Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: 5715/1: Make kprobes unregistration SMP safeFrederic Riss2009-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARM kprobes use an illegal instruction to trigger kprobes. In the current implementation, there's a race between the unregistration of a kprobe and the illegal instruction exception handler if they run at the same time on different cores. When reading the value of the undefined instruction, the exception handler might get the original legal instruction as just patched concurrently by arch_disarm_kprobe(). When this happen the kprobe handler won't run, and thus the exception handler will oops because it believe it just hit an undefined instruction in kernel space. The following patch synchronizes the code patching in the kprobes unregistration using stop_machine and thus avoids the above race. Signed-off-by: Frederic RISS <frederic.riss@gmail.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: Add support for checking access permissions on prefetch abortsRussell King2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARMv6 introduces non-executable mappings, which can cause prefetch aborts when an attempt is made to execute from such a mapping. Currently, this causes us to loop in the page fault handler since we don't correctly check for proper permissions. Fix this by checking that VMAs have VM_EXEC set for prefetch aborts. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: Separate out access error checkingRussell King2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we get notified separately about prefetch aborts, which may be permission faults, we need to check for appropriate access permissions when handling a fault. This patch prepares us for doing this by separating out the access error checking. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: Ensure correct might_sleep() check in pagefault pathRussell King2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: Update page fault handling for new OOM techniquesRussell King2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: Provide definitions and helpers for decoding the FSR registerRussell King2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | ARM: 5712/1: SA1100: initialise spinlock in DMA codeDmitry Artamonow2009-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Declare it using DEFINE_SPINLOCK() Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6Russell King2009-09-19
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| | * | | | | | | | | | | Thumb-2: Correctly handle undefined instructions in the kernelCatalin Marinas2009-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VFP instructions in the kernel may trigger undefined exceptions if VFP hardware is not present. This patch corrects the loading of such Thumb-2 instructions. It also marks the "no_fp" label as a function so that the linker generate a Thumb address. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-24 16:33:56 -0400