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2018-10-05soc: fsl: bman_portals: defer probe after bman's probeLaurentiu Tudor1-1/+9
A crash in bman portal probing could not be triggered (as is the case with qman portals) but it does make calls [1] into the bman driver so lets make sure the bman portal probing happens after bman's. [1] bman_p_irqsource_add() (in bman) called by: init_pcfg() called by: bman_portal_probe() Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-05soc: fsl: qbman: Use last response to determine valid bitRoy Pledge1-2/+14
Use the last valid response when determining what valid bit to use next for management commands. This is needed in the case that the portal was previously used by other software like a bootloader or if the kernel is restarted without a hardware reset. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-05soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBManRoy Pledge1-1/+1
The QBMan block is memory mapped on SoCs above a 32 bit (4 Gigabyte) boundary so enabling 64 bit DMA addressing is needed for QBMan to be usuable. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-05soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlersMadalin Bucur2-3/+7
The existing code sets portal IRQ affinity to CPU 0 in the offline hotplug handler. If CPU 0 is offline this is invalid. Use a different online CPU instead. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-05soc: fsl: qbman: Check if CPU is offline when initializing portalsRoy Pledge3-8/+24
If the CPU to affine the portal interrupt is offline at boot time affine the portal interrupt to another online CPU. If the CPU is later brought online the hotplug handler will correctly adjust the affinity. Moved common code in a function. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-01soc: fsl: qman_portals: defer probe after qman's probeLaurentiu Tudor1-0/+8
Defer probe of qman portals after qman probing. This fixes the crash below, seen on NXP LS1043A SoCs: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 Mem abort info: ESR = 0x96000004 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [0000000000000004] user address but active_mm is swapper Internal error: Oops: 96000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc1-next-20180622-00200-g986f5c179185 #9 Hardware name: LS1043A RDB Board (DT) pstate: 80000005 (Nzcv daif -PAN -UAO) pc : qman_set_sdest+0x74/0xa0 lr : qman_portal_probe+0x22c/0x470 sp : ffff00000803bbc0 x29: ffff00000803bbc0 x28: 0000000000000000 x27: ffff0000090c1b88 x26: ffff00000927cb68 x25: ffff00000927c000 x24: ffff00000927cb60 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000090e9000 x20: ffff800073b5c810 x19: ffff800027401298 x18: ffffffffffffffff x17: 0000000000000001 x16: 0000000000000000 x15: ffff0000090e96c8 x14: ffff80002740138a x13: ffff0000090f2000 x12: 0000000000000030 x11: ffff000008f25000 x10: 0000000000000000 x9 : ffff80007bdfd2c0 x8 : 0000000000004000 x7 : ffff80007393cc18 x6 : 0040000000000001 x5 : 0000000000000000 x4 : ffffffffffffffff x3 : 0000000000000004 x2 : ffff00000927c900 x1 : 0000000000000000 x0 : 0000000000000004 Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____)) Call trace: qman_set_sdest+0x74/0xa0 platform_drv_probe+0x50/0xa8 driver_probe_device+0x214/0x2f8 __driver_attach+0xd8/0xe0 bus_for_each_dev+0x68/0xc8 driver_attach+0x20/0x28 bus_add_driver+0x108/0x228 driver_register+0x60/0x110 __platform_driver_register+0x40/0x48 qman_portal_driver_init+0x20/0x84 do_one_initcall+0x58/0x168 kernel_init_freeable+0x184/0x22c kernel_init+0x10/0x108 ret_from_fork+0x10/0x18 Code: f9400443 11001000 927e4800 8b000063 (b9400063) ---[ end trace 4f6d50489ecfb930 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-10-01bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPSTony Lindgren1-111/+4
As Grygorii Strashko pointed out, the runtime PM use count of the children can be whatever at suspend and we should not use it. So let's just suspend ti-sysc at noirq level and get rid of some code. Let's also remove the PM_SLEEP ifdef and use __maybe_unused as the PM code already deals with the ifdefs. Suggested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-10-01soc: imx: gpcv2: Switch to SPDX identifierFabio Estevam1-7/+1
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-01soc: imx: gpc: Switch to SPDX identifierFabio Estevam1-7/+1
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-01bus: imx-weim: drop unnecessary DT node name NULL checkRob Herring1-3/+0
Checking the child node names is pointless as the DT node name can never be NULL, so remove it. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-01soc: imx: gpcv2: make pgc driver more generic for other i.MX platformsAnson Huang1-29/+43
i.MX8MQ and i.MX8MM share same gpc module with i.MX7D, they can reuse gpcv2 pgc driver for power domain control, this patch renames all functions and structure definitions started with "imx7" to "imx", and use .data in imx_gpcv2_dt_ids[] to pass platform specific power domain data for power domain driver, thus make gpcv2 pgc driver more generic for i.MX platforms. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-01soc: imx: gpcv2: use A_CORE instread of A7 for more i.MX platformsAnson Huang1-10/+10
gpcv2 driver is NOT just used on i.MX7D which has Cortex-A7 cores, but also on i.MX8MQ/i.MX8MM platforms which use Cortex-A53 cores, so let's use A_CORE instread of A7 to avoid confusion. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-09-30soc: actions: sps: Add S900 power domainsManivannan Sadhasivam2-1/+59
Add power domains for Actions Semi S900 SoC. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> [AF: Update Kconfig help text] Signed-off-by: Andreas Färber <afaerber@suse.de>
2018-09-30dt-bindings: power: Add Actions Semi S900 SPSManivannan Sadhasivam2-0/+25
Define power domains for Actions Semi S900 SoC Smart Power System (SPS). Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2018-09-28bus: ti-sysc: Make some warnings debug onlyTony Lindgren1-2/+2
We're currently warning about busy children on suspend in sysc_child_suspend_noirq() but the legacy code omap_device does not do that. Let's just make it dev_dbg() instead of dev_warn(). Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-28bus: ti-sysc: Detect devices for debug on dra7Tony Lindgren1-5/+8
We want to see the names of detected devices when DEBUG is enabled. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-28bus: ti-sysc: Detect timer and gpio on dra7Tony Lindgren1-2/+4
We need to detect timer and gpio on dra7 because of the SYSC_QUIRK_LEGACY_IDLE flag for suspend and resume. Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-27soc: fsl: qbman: add APIs to retrieve the probing statusLaurentiu Tudor4-0/+38
Add a couple of new APIs to check the probing status of qman and bman: 'int bman_is_probed()' and 'int qman_is_probed()'. They return the following values. * 1 if qman/bman were probed correctly * 0 if qman/bman were not yet probed * -1 if probing of qman/bman failed Drivers that use qman/bman driver services are required to use these APIs before calling any functions exported by qman or bman drivers or otherwise they will crash the kernel. The APIs will be used in the following couple of qbman portal patches and later in the series in the dpaa1 ethernet driver. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2018-09-26firmware: xilinx: Add debugfs for query data APIRajan Vaja1-0/+28
Add debugfs file to query platform specific data from firmware using debugfs interface. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-09-26firmware: xilinx: Add debugfs interfaceRajan Vaja5-0/+259
Firmware-debug provides debugfs interface to all APIs. Debugfs can be used to call firmware APIs with required parameters. Usage: * Calling firmware API through debugfs: # echo "<api-name> <arg1> .. <argn>" > /sys/.../zynqmp-firmware/pm * Read output of last called firmware API: # cat /sys/.../zynqmp-firmware/pm Refer ug1200 for more information on these APIs: * https://www.xilinx.com/support/documentation/user_guides/ug1200-eemi-api.pdf Add basic debugfs file to get API version. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-09-26firmware: xilinx: Add clock APIsRajan Vaja2-2/+214
Add clock APIs to control clocks through firmware interface. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-09-26firmware: xilinx: Add query data APIRajan Vaja2-0/+34
Add ZynqMP firmware query data API to query platform specific information(clocks, pins) from firmware. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-09-26firmware: xilinx: Add Zynqmp firmware driverRajan Vaja7-0/+408
This patch is adding communication layer with firmware. Firmware driver provides an interface to firmware APIs. Interface APIs can be used by any driver to communicate to PMUFW(Platform Management Unit). All requests go through ATF. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>