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* ARM: at91: Replace uses of virt_to_phys with __pa_symbolAlexandre Belloni2017-09-181-2/+2
| | | | | | | | | The PM code wrongly uses virt_to_phys() instead of __pa_symbol() and was not updated by commit 64fc2a947a98 ("ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol") because it was not yet in tree. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
* ARM: at91: don't select CONFIG_ARM_CPU_SUSPEND for old platformsArnd Bergmann2017-08-231-0/+12
| | | | | | | | | | | | | | | | | | | | | | | My previous patch fixed a link error for all at91 platforms when CONFIG_ARM_CPU_SUSPEND was not set, however this caused another problem on a configuration that enabled CONFIG_ARCH_AT91 but none of the individual SoCs, and that also enabled CPU_ARM720 as the only CPU: warning: (ARCH_AT91 && SOC_IMX23 && SOC_IMX28 && ARCH_PXA && MACH_MVEBU_V7 && SOC_IMX6 && ARCH_OMAP3 && ARCH_OMAP4 && SOC_OMAP5 && SOC_AM33XX && SOC_DRA7XX && ARCH_EXYNOS3 && ARCH_EXYNOS4 && EXYNOS5420_MCPM && EXYNOS_CPU_SUSPEND && ARCH_VEXPRESS_TC2_PM && ARM_BIG_LITTLE_CPUIDLE && ARM_HIGHBANK_CPUIDLE && QCOM_PM) selects ARM_CPU_SUSPEND which has unmet direct dependencies (ARCH_SUSPEND_POSSIBLE) arch/arm/kernel/sleep.o: In function `cpu_resume': (.text+0xf0): undefined reference to `cpu_arm720_suspend_size' arch/arm/kernel/suspend.o: In function `__cpu_suspend_save': suspend.c:(.text+0x134): undefined reference to `cpu_arm720_do_suspend' This improves the hack some more by only selecting ARM_CPU_SUSPEND for the part that requires it, and changing pm.c to drop the contents of unused init functions so we no longer refer to cpu_resume on at91 platforms that don't need it. Fixes: cc7a938f5f30 ("ARM: at91: select CONFIG_ARM_CPU_SUSPEND") Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'at91-ab-4.13-soc' of ↵Olof Johansson2017-06-181-28/+178
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/soc SoC for 4.13: - New suspend/resume mode for sama5d2 - Initial support for armv7m based SoCs * tag 'at91-ab-4.13-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: ARM: at91: remove atmel_nand_data ARM: at91: fix at91_suspend_entering_slow_clock link error ARM: at91: debug: add samv7x support ARM: at91: add armv7m SoC detection ARM: at91: handle CONFIG_PM for armv7m configurations ARM: at91: Add armv7m support ARM: at91: Document armv7m compatibles ARM: at91: Documentation: add armv7m families ARM: at91: pm: fallback to slowclock when backup mode fails ARM: at91: pm: allow selecting standby and suspend modes ARM: at91: pm: Add sama5d2 backup mode Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: at91: pm: fallback to slowclock when backup mode failsAlexandre Belloni2017-05-151-0/+5
| | | | | | | | | | | | | | | | If the backup sram allocation fails, ensure we can suspend by falling back to the usual slow clock mode. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
| * ARM: at91: pm: allow selecting standby and suspend modesAlexandre Belloni2017-05-151-34/+76
| | | | | | | | | | | | | | | | | | | | | | | | While we can only select between "standby" and "mem" states for power management, the atmel platforms can actually support more modes. For both standby and mem, allow selecting which mode will be used using the atmel.pm_modes kernel parameter. By default, keep the current modes. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
| * ARM: at91: pm: Add sama5d2 backup modeAlexandre Belloni2017-05-151-3/+106
| | | | | | | | | | | | | | | | | | The sama5d2 has a mode were it is possible to cut power to the SoC while keeping the RAM in self refresh. Resuming from that mode needs support in the firmware/bootloader. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
* | ARM: remove duplicate 'const' annotations'Arnd Bergmann2017-05-191-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | gcc-7 warns about some declarations that are more 'const' than necessary: arch/arm/mach-at91/pm.c:338:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const ramc_ids[] __initconst = { arch/arm/mach-bcm/bcm_kona_smc.c:36:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const bcm_kona_smc_ids[] __initconst = { arch/arm/mach-spear/time.c:207:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const timer_of_match[] __initconst = { arch/arm/mach-omap2/prm_common.c:714:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = { arch/arm/mach-omap2/vc.c:562:35: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier] static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = { The ones in arch/arm were apparently all introduced accidentally by one commit that correctly marked a lot of variables as __initconst. Fixes: 19c233b79d1a ("ARM: appropriate __init annotation for const data") Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: at91: pm: Remove at91_pm_set_standbyAlexandre Belloni2017-03-311-8/+2
| | | | | | | | Merge at91_pm_set_standby() in at91_dt_ramc as this is the only callsite. That moves it to the init section. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Merge all at91sam9*_pm_initAlexandre Belloni2017-03-311-13/+1
| | | | | | | | The PM initialization is now identical for all at91sam9. Merge the functions. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Tie the USB clock mask to the pmcAlexandre Belloni2017-03-311-14/+23
| | | | | | | | The USB clocks mask (uhp_udp_mask) depends on the pmc. Tie it to the pmc id instead of the SoC. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Tie the memory controller type to the ramc idAlexandre Belloni2017-03-311-10/+20
| | | | | | | | Instead of relying on the SoC type to select the memory controller type, use the device tree ids as they are parsed anyway. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.Alexandre Belloni2017-03-311-1/+19
| | | | | | | | | | As already explained for pm_suspend.S, the DDRSDR controller fails to put LPDDR1 memories in self-refresh. Force the controller to think it has DDR2 memories during the self-refresh period, as the DDR2 self-refresh spec is equivalent to LPDDR1, and is correctly implemented in the controller. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Simplify at91rm9200_standbyAlexandre Belloni2017-03-311-8/+3
| | | | | | | | Since 2008, AT91_MC_SDRAMC_LPR is set to 0 at kernel initialization. There is no use saving, changing and restoring it. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Use struct at91_pm_data in pm_suspend.SAlexandre Belloni2017-03-311-45/+33
| | | | | | | | | | The number of register we can safely pass to at91_pm_suspend_in_sram is limited. Instead, pass the address to the at91_pm_data structure. The offsets are automatically generated to avoid hardcoding them. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Move global variables into at91_pm_dataAlexandre Belloni2017-03-311-23/+21
| | | | | | | | Instead of having separate global variables to hold IP addresses, move them to struct at91_pm_data. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Move at91_ramc_read/write to pm.cAlexandre Belloni2017-03-311-0/+6
| | | | | | | | Those macros are only used in pm.c, move them there so we can remove the test on __ASSEMBLY__. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: Cleanup headersAlexandre Belloni2017-03-311-16/+5
| | | | | | | Remove unnecessary header inclusions and reorder the remaining ones. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: cpu_idle: switch DDR to power-down modeNicolas Ferre2017-03-141-1/+17
| | | | | | | | | | | | | | | | | | | | | | | On some DDR controllers, compatible with the sama5d3 one, the sequence to enter/exit/re-enter the self-refresh mode adds more constrains than what is currently written in the at91_idle driver. An actual access to the DDR chip is needed between exit and re-enter of this mode which is somehow difficult to implement. This sequence can completely hang the SoC. It is particularly experienced on parts which embed a L2 cache if the code run between IDLE calls fits in it... Moreover, as the intention is to enter and exit pretty rapidly from IDLE, the power-down mode is a good candidate. So now we use power-down instead of self-refresh. As we can simplify the code for sama5d3 compatible DDR controllers, we instantiate a new sama5d3_ddr_standby() function. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: <stable@vger.kernel.org> # v4.1+ Fixes: 017b5522d5e3 ("ARM: at91: Add new binding for sama5d3-ddramc") Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: remove useless extern definitionAlexandre Belloni2017-01-111-1/+1
| | | | | | at91_ramc_base is local to pm.c, remove its definition in pm.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: fix warnings in pm.cBen Dooks2016-06-211-2/+3
| | | | | | | | | | | | | | | Fix a pair of missing statics on un-exported functions and include <linux/platform_data/atmel.h> to provide the declaration of at91_suspend_entering_slow_clock() to fix the following sparse warnings: arch/arm/mach-at91/pm.c:127:5: warning: symbol 'at91_suspend_entering_slow_clock' was not declared. Should it be static? arch/arm/mach-at91/pm.c:358:6: warning: symbol 'at91rm9200_idle' was not declared. Should it be static? arch/arm/mach-at91/pm.c:367:6: warning: symbol 'at91sam9_idle' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* ARM: at91: pm: move idle functions to pm.cAlexandre Belloni2016-02-171-5/+32
| | | | | | | | Avoid using code from clk/at91 for PM. This also has the bonus effect of setting arm_pm_idle for sama5 platforms. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
* ARM: at91: pm: find and remap the pmcAlexandre Belloni2016-02-171-6/+27
| | | | | | | | To avoid relying on at91_pmc_read(), find the pmc node and remap it locally. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
* ARM: at91: pm: simply call at91_pm_initAlexandre Belloni2016-02-171-3/+3
| | | | | | | | at91_pm_init() doesn't return a value, as is the case for its callers, simply call it instead of returning its non-existent return value. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
* ARM: at91: fix pinctrl driver selectionLudovic Desroches2015-12-041-1/+6
| | | | | | | | | | | Move the selection of the pinctrl driver to SoC family level since we have two pinctrl drivers. It is useless to select one which is not compatible with the SoC. [abelloni: fixed pm.c when only sama2d2 is selected] Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* genalloc: add name arg to gen_pool_get() and devm_gen_pool_create()Vladimir Zapolskiy2015-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change modifies gen_pool_get() and devm_gen_pool_create() client interfaces adding one more argument "name" of a gen_pool object. Due to implementation gen_pool_get() is capable to retrieve only one gen_pool associated with a device even if multiple gen_pools are created, fortunately right at the moment it is sufficient for the clients, hence provide NULL as a valid argument on both producer devm_gen_pool_create() and consumer gen_pool_get() sides. Because only one created gen_pool per device is addressable, explicitly add a restriction to devm_gen_pool_create() to create only one gen_pool per device, this implies two possible error codes returned by the function, account it on client side (only misc/sram). This completes client side changes related to genalloc updates. [akpm@linux-foundation.org: gen_pool_get() cleanup] Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: appropriate __init annotation for const dataNicolas Pitre2015-07-281-1/+1
| | | | | | | | | | Init data marked const should be annotated with __initconst for correctness and not __initdata. In some cases the array gathering references to that data has to be marked const as well. This fixes LTO builds that otherwise fail with section mismatch errors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* genalloc: rename dev_get_gen_pool() to gen_pool_get()Vladimir Zapolskiy2015-06-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | To be consistent with other genalloc interface namings, rename dev_get_gen_pool() to gen_pool_get(). The original omitted "dev_" prefix is removed, since it points to argument type of the function, and so it does not bring any useful information. [akpm@linux-foundation.org: update arch/arm/mach-socfpga/pm.c] Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Mark Brown <broonie@kernel.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Alan Tull <atull@opensource.altera.com> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: at91/pm: use the atmel-mc syscon definesAlexandre Belloni2015-05-201-4/+4
| | | | | | | Use the defines from atmel-mc.h instead of at91rm9200_sdramc.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* Merge tag 'at91-cleanup4_bis' of ↵Arnd Bergmann2015-04-141-0/+89
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/multiplatform Pull "Fourth batch of cleanup for 4.1" from Nicolas Ferre: - 1 issues revealed by the kbuild test robot fixed - move of some functions and macros into relevant files to be able to streamline the at91 specific header afterwards * tag 'at91-cleanup4_bis' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: at91/pm: move AT91_MEMCTRL_* to pm.h ARM: at91/pm: move the standby functions to pm.c ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
| * ARM: at91/pm: move the standby functions to pm.cAlexandre Belloni2015-04-051-0/+89
| | | | | | | | | | | | | | | | | | | | The standby functions are now only used in pm.c, move them there. Also, they are not inlined as a pointer to those functions is passed to the cpuidle driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | ARM: at91: remove hardware.hAlexandre Belloni2015-03-191-2/+9
| | | | | | | | | | | | | | | | hardware.h is now mostyl unused, move the remaining declarations to pm.c and remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | ARM: at91: remove useless mach/cpu.hAlexandre Belloni2015-03-191-1/+0
|/ | | | | | | mach/cpu.h is not used anymore, remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: flush data cache and clean, invalidate and disable the L2 cacheWenyou Yang2015-03-131-0/+6
| | | | | | | | | | Flush data cache, and clean, invalidate and disable the L2 cache before going to suspend. Restore the L2 cache configuration and re-enable the L2 cache after waking up. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: remove unused void (*at91_pm_standby)(void)Wenyou Yang2015-03-131-4/+1
| | | | | | | | | Because the standby mode use the same sram function as the suspend to memory mode, void (*at91_pm_standby)(void) doesn't need, remove it. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: rename function name: at91_slow_clock() --> ↵Wenyou Yang2015-03-131-13/+14
| | | | | | | | | | | | | | at91_pm_suspend_sram_fn() As the file name is renamed, rename the function name at91_slow_clock() --> at91_pm_suspend_sram_fn(), rename the function handler's name at the same time. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> [nicolas.ferre@atmel.com: little update of the commit message] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: standby mode uses same sram function as suspend to memory modeWenyou Yang2015-03-131-46/+39
| | | | | | | | | | | | | To simply the PM code, the suspend to standby mode uses same sram function as the suspend to memory mode, running in the internal SRAM, instead of the respective code for each mode. For the suspend to standby mode, the master clock doesn't switch to the slow clock, and PLLA and the main oscillator doesn't turn off as well. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: move the copying the sram function to the sram initialization ↵Wenyou Yang2015-03-131-4/+12
| | | | | | | | | | | | | | | | phase To decrease the suspend time, move copying the sram function to the sram initialization phase, instead of every time go to suspend. In the meanwhile, substitute fncpy() for memcpy(). If there is no sram allocated for PM, the PM is not supported. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91/pm: remove CONFIG_AT91_SLOW_CLOCK config optionWenyou Yang2015-03-131-11/+1
| | | | | | | | | | | The slow clock always exists, selecting CONFIG_AT91_SLOW_CLOCK config is unnecessary for the suspend to memory mode. For this mode the master clock should always switch to the slow clock. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: change at91_pm_set_standby() to staticWenyou Yang2015-03-121-1/+1
| | | | | | | | | Since at91_pm_set_standby() will not be used out of the pm.c file, change its attribute from extern to static, remove its declaration as well. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: fix SRAM allocationAlexandre Belloni2015-03-031-12/+10
| | | | | | | | | | On some platforms, there are multiple SRAM nodes defined in the device tree but some of them are disabled, leading to allocation failure. Try to find the first enabled SRAM node and allocate from it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: make of_device_ids constUwe Kleine-König2015-02-191-2/+2
| | | | | | | | | | | | | of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs in arch/arm as const, too. While at it also add some __initconst annotations. Acked-by: Jason Cooper <jason@lakedameon.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: at91/trivial: unify functions and machine namesNicolas Ferre2015-02-021-4/+4
| | | | | | | | | | Remove the string "(Device Tree)" after the machine name because all AT91 machines use the DT nowadays. Also change some function names to unify following the convention: - at91sam9xxx aren't named sam9, 9xxx but with the full name - sama5 are the ones that don't have the at91 prefix anymore. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: remove at91_dt_initialize and machine init_early()Alexandre Belloni2015-02-021-0/+44
| | | | | | | | | | Move the ramc initialization to pm.c as it is the only user left. This allows us to get rid of at91_dt_initialize() that was the only one called by the init_early() function pointer of struct machine_desc. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: fix PM initialization for newer SoCsNicolas Ferre2015-01-261-0/+7
| | | | | | | | Newer SoCs: at91sam9x5, at91sam9n12, sama5d3 and sama5d4 embed a DDR controller and have a different PMC status register layout than the at91sam9g45. Create another at91_sam9x5_pm_init() function to match this compatibility. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: prepare for multiplatformAlexandre Belloni2015-01-161-21/+27
| | | | | | | | | Split at91_pm_init() in three variants that are called by the respective SoCs .init_machine. This allows to remove the of_machine_is_compatible() calls and move at91_pm_init() out of arch_initcall() which is required for multiplatform. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: add UDP and UHP checks to newer SoCsAlexandre Belloni2015-01-161-7/+2
| | | | | | | | Check UDP and UHP on sam9x5, sam9n12 and the sama5 series. Check UHP on the sam9g45. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: use the mmio-sram pool to access SRAMAlexandre Belloni2015-01-161-1/+45
| | | | | | | | Now that the SRAM is part of a genpool, use it to allocate memory to use for the slowclock implementation. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: pm: rework cpu detectionAlexandre Belloni2015-01-161-21/+33
| | | | | | | Store SoC differences in a struct to remove cpu_is_* usage. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: remove old AT91-specific driversArnd Bergmann2014-12-021-9/+2
| | | | | | | | | | GPIO and LED drivers were replaced by generic ones for DT boards. These drivers were remaining: delete them now. Modifications are also done on the corresponding header files. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: split patch] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* ARM: at91: remove legacy IRQ driver and related codeNicolas Ferre2014-11-271-22/+0
| | | | | | | | | | | | | | | | | | | | Remove irc.c and associated header file. The related code was idendified by the CONFIG_OLD_IRQ_AT91 option that was removed previously. It has been spotted by following coccinelle semantic match: @rule1@ expression E; statement S; @@ ( - if (IS_ENABLED(CONFIG_OLD_IRQ_AT91)) S | - if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && E) S ) Cc: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-28 03:43:14 +0000