summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ux500/setup.h
AgeCommit message (Collapse)AuthorFilesLines
2017-03-02ARM: ux500: resume the second core properlyLinus Walleij1-16/+0
The pen hold/release scheme was copied over to Ux500 from the ARM reference designs like most of these at the time. It is not needed at all, and was mostly removed in commit c00def71efd9 "ARM: ux500: simplify secondary CPU boot". However on the suspend/resume path and hot plug/unplug of CPUs, the .cpu_die() callback was still waiting for the pen to be released which made it spin forever and the second core never come back online after suspend/resume. Fix this by simply replacing the strange custom .cpu_die() with a oneline wfi() just like e.g. the qcom platform does. This fixes the issue and makes the second core come up properly after suspend/resume. As a side effect, this rids us of the completely surplus local setup.h and hotplug.c files, and we just compile this into platsmp.c with everything else SMP. Cc: stable@vger.kernel.org Fixes: c00def71efd9 ("ARM: ux500: simplify secondary CPU boot") Cc: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-12ARM: ux500: consolidate base platform filesArnd Bergmann1-10/+0
The cpu.c and cache-l2x0.c files hold only two or three simple functions each, and they are all called from the machine descriptors, so we can just move them all into the same file for simplicity and consistency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-12ARM: ux500: move soc_id driver to drivers/socArnd Bergmann1-2/+0
As the ux500 id code is basically a standalone driver, we can move it out of the arch code into drivers/soc/ux500. This is a user-visible change, as it moves all the devices in sysfs from /sys/devices/soc0/ to /sys/devices/ and leaves the soc0 node as a separate device. Originally the idea was to put all on-chip devices under the soc node, and ux500 was the first platform to have this device, but later platforms almost all didn't follow that pattern, so this makes the platform do the same thing as everyone else. Since the platform is really obsolete now, I am optimistic that nothing will break after moving the devices around. As the SoC driver no longer has access to the private header files, I'm changing the code to instead look up the address of the backupram from devicetree, which is a good idea anyway. Finally, having a separate Kconfig symbol means the driver is now optional and could even be a loadable module rather than always being built-in if we allowed that for soc_device. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [Fixup mising Makefile, fixup BB_UID_BASE to fc0] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-12ARM: ux500: consolidate soc_device code in id.cArnd Bergmann1-3/+1
Nothing else uses the global dbx500_asic_id structure, so we can merge the two small files that reference it into one. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-12ARM: ux500: move l2x0 init to .init_irqArnd Bergmann1-0/+3
The generic IRQ init function also enables the l2 cache implicitly when the machine descriptor sets an .l2c_aux_mask. Let's use that on ux500 and remove the ux500_l2x0_init() along with the cpu_is_u8500_family checks. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-12mfd: db8500 stop passing around platform dataArnd Bergmann1-1/+0
Except for the constant DB8500_PRCMU_FW_VERSION_OFFSET number, nothing is ever passed through the platform data and used in a driver, so we can simply stop passing it around. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-01ARM/clocksource: use automatic DT probing for ux500 PRCMULinus Walleij1-3/+0
The ARM core kernel already calls clocksource_of_init() so why go to all the trouble of locating and probing this node in the machine. CLOCKSOURCE_OF_DECLARE() will take care of it in the clocksource driver, and thus we can also get rid of the dangling header file <linux/clksrc-dbx500-prcmu.h> Suggested-by: Arnd Bergmann <arndb@linaro.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-08-06ARM: ux500: simplify secondary CPU bootLinus Walleij1-1/+0
This removes a lot of ancient cruft from the Ux500 SMP boot. Instead of the pen grab/release, just point the ROM to secondary_boot() and start the second CPU there, then send the IPI. Use our own SMP enable method. This enables us to remove the last static mapping and get both CPUs booting properly. Tested this and it just works. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-05-18ARM: ux500: delete static resource definesLinus Walleij1-14/+0
These macros were used in the past to define static resources, but are not used anymore and have no future, delete them. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-18ARM: ux500: rename ux500_map_ioLinus Walleij1-1/+1
This function is not mapping any I/O other than for probing the chip ID. Rename it to make the function graspable. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-23Merge tag 'dt-for-linus' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC DT updates from Olof Johansson: "DT and DT-conversion-related changes for various ARM platforms. Most of these are to enable various devices on various boards, etc, and not necessarily worth enumerating. New boards and systems continue to come in as new devicetree files that don't require corresponding C changes any more, which is indicating that the system is starting to work fairly well. A few things worth pointing out: * ST Ericsson ux500 platforms have made the major push to move over to fully support the platform with DT * Renesas platforms continue their conversion over from legacy platform devices to DT-based for hardware description" * tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (327 commits) ARM: dts: SiRF: add pin group for USP0 with only RX or TX frame sync ARM: dts: SiRF: add lost usp1_uart_nostreamctrl pin group for atlas6 ARM: dts: sirf: add lost minigpsrtc device node ARM: dts: sirf: add clock, frequence-voltage table for CPU0 ARM: dts: sirf: add lost bus_width, clock and status for sdhci ARM: dts: sirf: add lost clocks for cphifbg ARM: dts: socfpga: add pl330 clock ARM: dts: socfpga: update L2 tag and data latency arm: sun7i: cubietruck: Enable the i2c controllers ARM: dts: add support for EXYNOS4412 based TINY4412 board ARM: dts: Add initial support for Arndale Octa board ARM: bcm2835: add USB controller to device tree ARM: dts: MSM8974: Add MMIO architected timer node ARM: dts: MSM8974: Add restart node ARM: dts: sun7i: external clock outputs ARM: dts: sun7i: Change 32768 Hz oscillator node name to clk@N style ARM: dts: sun7i: Add pin muxing options for clock outputs ARM: dts: sun7i: Add rtp controller node ARM: dts: sun5i: Add rtp controller node ARM: dts: sun4i: Add rtp controller node ...
2013-12-11ARM: add permission annotations to MT_MEMORY* mapping typesRussell King1-1/+1
Document the permissions which the various MT_MEMORY* mapping types will provide. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-11-26ARM: ux500: Clean-up legacy extern prototypeLee Jones1-3/+0
Decomission io_mapping() and device init calls from non-DT boot path. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-26ARM: ux500: Remove unused call to register AMBA devicesLee Jones1-3/+0
Decomission the AMBA device register functions. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-26ARM: ux500: Purge UIB framework when booting with ATAGsLee Jones1-1/+0
It's time to remove all ATAG support from ux500 and rely solely on Device Tree booting. This patch is part of that endeavour. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-19ARM: ux500: add restart support via prcmuFabio Baltieri1-0/+3
Add necessary code to restart ux500 based machines using prcmu_system_reset(). Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-14ARM: ux500: Remove duplicated assignment of ab8500_platdataLee Jones1-1/+1
Since: "05ec260 mfd: db8500-prcmu: update resource passing", the AB8500's platform data 'ab8500_platdata' is passed directly as an attribute to 'db8500_prcmu_pdata', so there's no requirement to assign it a second time. In fact, it's only due to an ordering issue that the entire 'db8500_prcmu_pdata' data structure isn't completely over-written by the assignment in u8500_init_devices(). Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08ARM: ux500: make remaining headers localArnd Bergmann1-0/+50
mach/setup.h and mach/devices.h are only needed from inside of mach-ux500 now, so we can simply move them out of the include/mach directory. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 09:29:24 +0000