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2018-05-03drivers: remove force dma flag from busesChristoph Hellwig1-1/+1
With each bus implementing its own DMA configuration callback, there is no need for bus to explicitly set the force_dma flag. Modify the of_dma_configure function to accept an input parameter which specifies if implicit DMA configuration is required when it is not described by the firmware. Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # PCI parts Reviewed-by: Rob Herring <robh@kernel.org> [hch: tweaked the changelog a bit] Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-03-20bcma: fill core OF info independently of bus typeRafał Miłecki1-2/+2
PCI devices can be described in DT as well so we should always execute relevant code. This will make bcma e.g. set of_node for cores described in DT. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20bcma: use helper function to set core dev's parentRafał Miłecki1-2/+1
A tiny code deduplication thanks to the bcma_bus_get_host_dev. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-20bcma: drop unneeded check for CONFIG_OF_IRQRafał Miłecki1-3/+0
We already have the same check in bcma_of_get_irq which really calls symbols available with CONFIG_OF_IRQ only. It appears this duplicated check was accidentally added in commit c58d900cc96a ("bcma: fix building without OF_IRQ"). The rest of code in bcma_of_fill_device should work fine without CONFIG_OF_IRQ. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-31bcma: make OF code more generic (not platform_device specific)Rafał Miłecki1-10/+11
OF allows not only specifying platform devices but also describing devices on standard buses like PCI or USB. This change will allow reading info from DT for bcma buses hosted on PCI cards. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-31bcma: use (get|put)_device when probing/removing device driverRafał Miłecki1-0/+4
This allows tracking device state and e.g. makes devm work as expected. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-09bcma: use of_dma_configure() to set initial dma maskArnd Bergmann1-2/+4
While fixing another bug, I noticed that bcma manually sets up a dma_mask pointer for its child devices. We have a generic helper for that now, which should be able to cope better with any variations that might be needed to deal with cache coherency, unusual DMA address offsets, iommus, or limited DMA masks, none of which are currently handled here. This changes the core to use the of_dma_configure(), like we do for platform devices that are probed directly from DT. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-03-23bcma: fix building without OF_IRQArnd Bergmann1-13/+4
The bcma driver core can be built with or without DT support, but it fails to build when CONFIG_OF=y and CONFIG_OF_IRQ=n, which can happen on platforms that do not support IRQ domains. ERROR: "irq_create_of_mapping" [drivers/bcma/bcma.ko] undefined! ERROR: "of_irq_parse_raw" [drivers/bcma/bcma.ko] undefined! ERROR: "of_irq_parse_one" [drivers/bcma/bcma.ko] undefined! This adds another compile-time check for OF_IRQ, but also gets rid of now unneeded #ifdef checks: Using the simpler IS_ENABLED() check for OF_IRQ also covers the case of not having CONFIG_OF enabled. The check for CONFIG_OF_ADDRESS was added to allow building on architectures without OF_ADDRESS, but that has been addressed already in b1d06b60e90c ("of: Provide static inline function for of_translate_address if needed"). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-03-07bcma: move parallel flash support to separated fileRafał Miłecki1-1/+1
This follows the way of handling other flashes and cleans code a bit. As next task we will want to move flash code to ChipCommon driver as: 1) Flash controllers are accesible using ChipCommon registers 2) This code isn't MIPS specific This change prepares bcma for that. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-12-31bcma: use module_init for the main part of bus initializationRafał Miłecki1-2/+27
So far we were using fs_initcall. It was (and still is) needed because struct bus_type has to be registered early. However main bus initialization has to happen later as it requires SPROM which depends on NVRAM which depends on mtd. Solve it by using fs_initcall only for bus_register call and module_init for the rest. It affects bcma only when built-in obviously. This was tested with BCM4706 and BCM5357C0 (BCM47XX), BCM4708A0 (ARCH_BCM_5301X) and BCM43225 (PCIe card with bcma as module). Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29bcma: add support for population subnodes also when build as moduleHauke Mehrtens1-7/+2
of_default_bus_match_table was not exported earlier, so it could only be accessed by code compiled into the kernel. A new function of_platform_default_populate() was added which uses of_default_bus_match_table and this function is also exported. This way it is possible to create a bus with the content of of_default_bus_match_table and we can remove the hacks from bcma. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-10bcma: fix access to host_pdev for PCIe devicesHauke Mehrtens1-3/+27
bus->host_pdev is part of a union so bus->host_pdev != NULL is probably also true for PCIe devices, because there it accesses bus->host_pci. If we access the dev member at the offset defined in struct platform_device in struct pci_dev instead we probably get something else. This patch adds a new function which returns the host dev struct and NULL if we do not have a host dev. When this gets registered on MIPS brcm47xx we do not have a host dev in some situations. This function could also be used in other places. This problem was introduced in this commit: commit cae761b5a6bdc597ba476a040fdcd5b4bc559b85 Author: Rafa? Mi?ecki <zajec5@gmail.com> Date: Sun Jun 28 17:17:13 2015 +0200 bcma: populate bus DT subnodes as platform_device-s Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-26bcma: fix build error when build as moduleHauke Mehrtens1-1/+5
Currently of_default_bus_match_table is not exported so we can only use this feature when bcma is build into the kernel. This patch removes support for child buses when bcma is build as a module as a temporary fix for a build problem introduces in this commit: commit cae761b5a6bdc597ba476a040fdcd5b4bc559b85 Author: Rafał Miłecki <zajec5@gmail.com> Date: Sun Jun 28 17:17:13 2015 +0200 bcma: populate bus DT subnodes as platform_device-s Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: cae761b5a6bd ("bcma: populate bus DT subnodes as platform_device-s") Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-07-21bcma: populate bus DT subnodes as platform_device-sRafał Miłecki1-0/+8
Our bus should allow defining children nodes as we may want to specify devices attached to the bus. This is required e.g. to specify NAND or ChipCommon cores and use bus's address and IRQ mappings. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-03-02bcma: enable support for PCIe Gen 2 host devicesRafał Miłecki1-1/+1
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-29bcma: add early_init function for PCIe core and move some fix into itRafał Miłecki1-0/+7
There are some PCIe core fixes that need to be applied before accessing SPROM, otherwise reading it may fail. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-29bcma: simplify freeing cores (internal devices structs)Rafał Miłecki1-11/+9
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-23bcma: use standard bus scanning during early registerRafał Miłecki1-24/+9
Starting with kernel 3.19-rc1 early registration of bcma on MIPS is done a bit later, with memory allocator available. This allows us to simplify code by using standard bus scanning method. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-23bcma: clean bus initialization codeRafał Miłecki1-4/+12
This moves main bus init code to the main.c and renames old function to make its purpose clear. Thanks to this change we'll also be able to separate scanning from registration (and support PCIe Gen 2 devices) in the future. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-11-19Merge commit '4e6ce4dc7ce71d0886908d55129d5d6482a27ff9' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-11-12bcma: get IRQ numbers from dtHauke Mehrtens1-1/+51
It is not possible to auto detect the irq numbers used by the cores on an arm SoC. If bcma was registered with device tree it will search for some device tree nodes with the irq number and add it to the core configuration. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-12bcma: make it possible to specify a IRQ num in bcma_core_irq()Hauke Mehrtens1-0/+22
This moves bcma_core_irq() to main.c and add a extra parameter with a number so that we can return different irq number for devices with more than one. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-27bcma: fill core details for every deviceRafał Miłecki1-3/+6
We were setting things like dma_dev, IRQ, etc. during core registration only. We need such info for cores handled internally (e.g. ChipCommon) as well. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-23bcma: fix build when CONFIG_OF_ADDRESS is not setHauke Mehrtens1-1/+1
Commit 2101e533f41a ("bcma: register bcma as device tree driver") introduces a hard dependency on OF_ADDRESS into the bcma driver. OF_ADDRESS is specifically disabled for the sparc architecture. This results in the following error when building sparc64:allmodconfig. drivers/bcma/main.c: In function 'bcma_of_find_child_device': drivers/bcma/main.c:150:3: error: implicit declaration of function 'of_translate_address' Fixes: 2101e533f41a ("bcma: register bcma as device tree driver") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-30bcma: register bcma as device tree driverHauke Mehrtens1-1/+51
This driver is used by the bcm53xx ARM SoC code. Now it is possible to give the address of the chipcommon core in device tree and bcma will search for all the other cores. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09bcma: add support for chipcommon B coreHauke Mehrtens1-0/+10
This core is used on BCM4708 to configure the PCIe and USB3 PHYs and it contains the addresses to the Device Management unit. This will be used by the PCIe driver first. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09bcma: register NAND and QSPI cores earlyRafał Miłecki1-0/+21
On Northstar (ARM arch) we will use MTD subsystem to access NVRAM and SPROM. To get access to flash device we need to register these cores first. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09bcma: move code for core registration into separate functionRafał Miłecki1-31/+36
This cleans code a bit and will us to register cores in other places as well. The only difference with this patch is using "core_index" for setting device name. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09bcma: move bus struct setup into early part of host specific codeRafał Miłecki1-2/+0
This change is important for SoC host. In future we will want to know chip ID (needed for early MIPS boot) before doing cores scanning. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-08bcma: add driver for PCIe Gen 2 coreRafał Miłecki1-0/+8
New Broadcom PCIe devices (802.11ac ones?) use Gen2 and have to be initialized differently. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-05bcma: export bcma_find_core_unit()Hauke Mehrtens1-12/+1
This function is used to get a specific core when there is more than one core of that specific type. This is used in bgmac to reset all GMAC cores. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-19bcma: add missing put_device callLevente Kurusa1-0/+1
This is required so that we give up the last reference to the device. Signed-off-by: Levente Kurusa <levex@linux.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-17bcma: convert bus code to use dev_groupsGreg Kroah-Hartman1-7/+16
The dev_attrs field of struct bus_type is going away soon, dev_groups should be used instead. This converts the bcma bus code to use the correct field. Acked-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-23bcma: return correct error code when bus scan failedHauke Mehrtens1-1/+1
It is better to return the actual error code than just -1. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-27bcma: add support for BCM43142Rafał Miłecki1-0/+19
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-07bcma: ignore extra GMAC cores on BCM4706Rafał Miłecki1-0/+5
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+7
Synchronize with 'net' in order to sort out some l2tp, wireless, and ipv6 GRE fixes that will be built on top of in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-08Merge branch 'master' of ↵John W. Linville1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-02-06Merge branch 'master' of ↵John W. Linville1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-02-05bcma: unregister gpios before unloading bcmaHauke Mehrtens1-0/+7
This patch unregisters the gpio chip before bcma gets unloaded. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reported-by: Piotr Haber <phaber@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-31bcma: register platform device for parallel flashRafał Miłecki1-0/+8
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-28Merge branch 'master' of ↵John W. Linville1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-01-08bcma: make bcma_find_core_unit() accessibleHauke Mehrtens1-2/+2
This bcma_find_core_unit() is needed by the mips driver in the next patch. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-04Drivers: bcma: remove __dev* attributes.Greg Kroah-Hartman1-1/+1
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: "Rafał Miłecki" <zajec5@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-15Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds1-0/+5
Pull MIPS updates from Ralf Baechle: "The MIPS bits for 3.8. This also includes a bunch fixes that were sitting in the linux-mips.org git tree for a long time. This pull request contains updates to several OCTEON drivers and the board support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B, updates to the SSB bus support, MIPS kexec code and adds support for kdump. When pulling this, there are two expected merge conflicts in include/linux/bcma/bcma_driver_chipcommon.h which are trivial to resolve, just remove the conflict markers and keep both alternatives." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits) MIPS: PMC-Sierra Yosemite: Remove support. VIDEO: Newport Fix console crashes MIPS: wrppmc: Fix build of PCI code. MIPS: IP22/IP28: Fix build of EISA code. MIPS: RB532: Fix build of prom code. MIPS: PowerTV: Fix build. MIPS: IP27: Correct fucked grammar in ops-bridge.c MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled MIPS: Fix potencial corruption MIPS: Fix for warning from FPU emulation code MIPS: Handle COP3 Unusable exception as COP1X for FP emulation MIPS: Fix poweroff failure when HOTPLUG_CPU configured. MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y MIPS: Remove unused smvp.h MIPS/EDAC: Improve OCTEON EDAC support. MIPS: OCTEON: Add definitions for OCTEON memory contoller registers. MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian. MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree. MIPS: Remove usage of CEVT_R4K_LIB config option. ...
2012-12-06bcma: register watchdog driverHauke Mehrtens1-0/+8
Register the watchdog driver to the system if this is a SoC. Using the watchdog on a non SoC device, like a PCIe card, will make the PCIe card die when the timeout expired, but starting it again is not supported by bcma. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-22bcma: add GPIO driverHauke Mehrtens1-0/+5
Register a GPIO driver to access the GPIOs provided by the chip. The GPIOs of the SoC should always start at 0 and the other GPIOs could start at a random position. There is just one SoC in a system and when they start at 0 the number is predictable. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/4587 Acked-by: Florian Fainelli <florian@openwrt.org>
2012-10-23Merge branch 'master' of ↵John W. Linville1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c net/mac80211/mlme.c
2012-10-19bcma: add an extra pcie core structHauke Mehrtens1-3/+22
The BCM4706 has two PCIe host controller on the bcma bus. For PCIe client mode it is assumed that there is only one PCIe controller so the PCIe driver, like b43 and brcmsmac are accessing the first PCIe controller when they want to issue a operation on the host controller. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-19bcma: init sprom struct earlierHauke Mehrtens1-7/+14
The PCIe host driver and the chip common initialisation accesses the sprom struct, but it is not initialized when these functions are run. Move the sprom parsing up in to do it earlier. As we need the chip common core rev and some other attributes from the chip common core, the early initialization is done before accessing the sprom. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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