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path: root/drivers/cpufreq/db8500-cpufreq.c
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2012-05-01ARM: ux500: core U9540 supportLinus Walleij
This adds support for the U9540 variant of the U8500 series. This is an application processor without internal modem. This is the most basic part with ASIC ID, CPU-related fixes, IRQ list, register ranges, timer, UART, and L2 cache setup. This is based on a patch by Michel Jaouen which was rewritten to fit with the latest 3.3 kernel. ChangeLog v1->v2: deleted the irqs-db9540.h file since we expect to migrate to using Device Tree for getting the IRQs to devices. ChangeLog v2->v3: introduced a fixed virtual offset for the ROM as suggested by Arnd Bergmann. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sebastien Pasdeloup <sebastien.pasdeloup-nonst@stericsson.com> Signed-off-by: Michel Jaouen <michel.jaouen@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-29drivers/cpufreq/db8500-cpufreq: remove references to cpu_*_map.Rusty Russell
This has been obsolescent for a while; time for the final push. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dave Jones <davej@redhat.com> Cc: cpufreq@vger.kernel.org Cc: Sundar Iyer <sundar.iyer@stericsson.com> Cc: Martin Persson <martin.persson@stericsson.com> Cc: Jonas Aaberg <jonas.aberg@stericsson.com>
2012-03-06mfd: Remove db8500-prcmu U8400 legacyDaniel Willerud
This removes the U8400 legacy from PRCMU and cpufreq drivers. This platform has no current in-kernel users. Signed-off-by: Daniel Willerud <daniel.willerud@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-11-12[CPUFREQ] db8500: fix build error due to undeclared i variableAxel Lin
The variable i is removed by commit ded8433 "[CPUFREQ] db8500: remove unneeded for loop iteration over freq_table", but current code to print available frequencies still uses the i variable. Thus add the i variable back to fix below buld error: CC drivers/cpufreq/db8500-cpufreq.o drivers/cpufreq/db8500-cpufreq.c: In function 'db8500_cpufreq_init': drivers/cpufreq/db8500-cpufreq.c:123: error: 'i' undeclared (first use in this function) drivers/cpufreq/db8500-cpufreq.c:123: error: (Each undeclared identifier is reported only once drivers/cpufreq/db8500-cpufreq.c:123: error: for each function it appears in.) make[2]: *** [drivers/cpufreq/db8500-cpufreq.o] Error 1 make[1]: *** [drivers/cpufreq] Error 2 make: *** [drivers] Error 2 This patch also fixes using uninitialized i variable as array index. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
2011-11-03Merge branch 'next' of git://github.com/kernelslacker/cpufreqLinus Torvalds
* 'next' of git://github.com/kernelslacker/cpufreq: [CPUFREQ] db8500: support all frequencies [CPUFREQ] db8500: remove unneeded for loop iteration over freq_table [CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloaders [CPUFREQ] ARM: ux500: send cpufreq notification for all cpus [CPUFREQ] e_powersaver: Allow user to lower maximum voltage [CPUFREQ] e_powersaver: Check BIOS limit for CPU frequency [CPUFREQ] e_powersaver: Additional checks [CPUFREQ] exynos4210: Show list of available frequencies
2011-10-26[CPUFREQ] db8500: support all frequenciesLinus Walleij
This adds support for the 200 MHz frequency mode of the DB8500 SoC, and prints the available frequencies at init time. Cc: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
2011-10-26[CPUFREQ] db8500: remove unneeded for loop iteration over freq_tableAxel Lin
Don't know why to do the loop iteration here. It looks unneeded. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-10-26[CPUFREQ] ARM: ux500: send cpufreq notification for all cpusVincent Guittot
The same clock is used for all cpus so we must notify the frequency change for each one in order to update the configuration of all twd clockevents. change since V1: * use policy->cpus instead of cpu_online_mask Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Dave Jones <davej@redhat.com>
2011-10-24mfd: Move to the new db500 PRCMU APIMattias Nilsson
Now that we have a shared API between the DB8500 and DB5500 PRCMU's, switch to using this neutral API instead. We delete the parts of db8500-prcmu.h that is now PRCMU-neutral, and calls will be diverted to respective driver. Common registers are in dbx500-prcmu-regs.h and common accessors and defines in <linux/mfd/dbx500-prcmu.h> This way we get a a lot more abstraction and code reuse. Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-24cpufreq: update DB8500 cpufreq driverLinus Walleij
This updates the ux500 cpufreq driver to the new interface from the updated DB8500 PRCMU Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: move CPUfreq driver to cpufreq subsystemLinus Walleij
As part of the ARM arch subsystem migration, move the DB8500 cpufreq driver to drivers/cpufreq as discussed with Dave Jones. The Makefile is not updated in order to avoid cross-subsystem conflicts for this file in merges. Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>