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path: root/drivers/bcma/driver_chipcommon.c
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2017-01-17Revert "bcma: init serial console directly from ChipCommon code"Rafał Miłecki
This reverts commit 4c81acab3816 ("bcma: init serial console directly from ChipCommon code") as it broke IRQ assignment. Getting IRQ with bcma_core_irq helper on SoC requires MIPS core to be set. It happens *after* ChipCommon initialization so we can't do this so early. This fixes a user reported regression. It wasn't critical as serial was still somehow working but lack of IRQs was making in unreliable. Fixes: 4c81acab3816 ("bcma: init serial console directly from ChipCommon code") Reported-by: Felix Fietkau <nbd@nbd.name> Cc: stable@vger.kernel.org # 4.6+ Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-09-03bcma: support BCM53573 series of wireless SoCsRafał Miłecki
BCM53573 seems to be the first series of Northstar family with wireless on the chip. The base models are BCM53573-s (A0, A1) and there is also BCM47189B0 which seems to be some small modification. The only problem with these chipsets seems to be watchdog. It's totally unavailable on 53573A0 / 53573A1 and preferable PMU watchdog is broken on 53573B0 / 53573B1. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-03-07bcma: move flash detection code to ChipCommon core driverRafał Miłecki
Flashes are attached and accessible through ChipCommon core, they aren't connected to MIPS one. Moreover some new ARM devices (e.g. BCM47189) may have serial flash accessibility using ChipCommon registers as well. To support them we can't keep this code in MIPS core driver. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-06bcma: add support for BCM47094Rafał Miłecki
It's another SoC with 32 GPIOs and simplified watchdog handling. It was tested on D-Link DIR-885L. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-06bcma: init serial console directly from ChipCommon codeRafał Miłecki
UART is connected to and controlled over ChipCommon core. It doesn't have much to do with MIPS core (where we initialize it currently) except just existing on embedded systemms. There isn't point of such cross-core initialization (and we needed #ifdef anyway) so just handle it in ChipCommon. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-06bcma: support PMU present as separated bus coreRafał Miłecki
On recent Broadcom chipsets PMU is present as separated core and it can't be accessed using ChipCommon anymore as it fails with e.g.: [ 0.000577] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf1000604 Solve it by using a new (PMU) core pointer set to ChipCommon or PMU depending on the hardware capabilities. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-29bcma: fix watchdog on some ARM chipsetsRafał Miłecki
These chipsets don't need changing clock mode. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15bcma: fix three coding style issues, more than 80 characters per lineOscar Forner Martinez
Three lines with more than 80 characters per line have been split in several lines. Signed-off-by: Oscar Forner Martinez <oscar.forner.martinez@gmail.com> Acked-by: Rafa? Mi?ecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-11-11bcma: make it possible to specify a IRQ num in bcma_core_irq()Hauke Mehrtens
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>
2013-06-27bcma: add support for BCM43142Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-27bcma: export some gpio functionsHauke Mehrtens
These functions will be used by brcmsmac. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-27bcma: export bcma_chipco_get_alp_clock()Hauke Mehrtens
This function will be used by brcmsmac. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11bcma: return the mips irq number in bcma_core_irqNathan Hintz
The irq signal numbers that are send by the cpu are increased by 2 from the number programmed into the mips core by bcma. Return the irq number on which the irqs are send in bcma_core_irq() now. Signed-off-by: Nathan Hintz <nlhintz@hotmail.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-14Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
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. ...
2012-12-10bcma: unify naming schema for clock functionsRafał Miłecki
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06bcma: register watchdog driverHauke Mehrtens
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>
2012-12-06bcma: add methods for watchdog driverHauke Mehrtens
The watchdog driver wants to set the watchdog timeout in ms and not in ticks, which is depending on the SoC type and the clock. Calculate the number of ticks per millisecond and provide two functions for the watchdog driver. Also return the ticks or millisecond the timer was set to in case the provided value was bigger than the max allowed value. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06bcma: set the pmu watchdog if availableHauke Mehrtens
Mostly all bcma based devices have a PMU and the PMU watchdog should be used and not the old one in chip common. This patch also calculates the maximal number the watchdog could be set to. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06bcma: add bcma_chipco_alp_clockHauke Mehrtens
For devices without a PMU the alp clock is always 20000000. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-21bcma: add comment to bcma_chipco_gpio_controlHauke Mehrtens
Add description to the function. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/4588 Acked-by: Florian Fainelli <florian@openwrt.org>
2012-11-21bcma: add bcma_chipco_gpio_pull{up,down}Hauke Mehrtens
Add functions to access the GPIO registers for pullup and pulldown. These are needed for handling gpio registration. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/4586 Acked-by: Florian Fainelli <florian@openwrt.org>
2012-11-21bcma: add locking around GPIO register accessesHauke Mehrtens
The GPIOs are access through some registers in the chip common core. We need locking around these GPIO accesses, all GPIOs are accessed through the same registers and parallel writes will cause problems. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/4585 Acked-by: Florian Fainelli <florian@openwrt.org>
2012-10-19bcma: just do the necessary things in early register on SoCsHauke Mehrtens
Some parts of the initialization for chip common and the pcie core are accessing the sprom struct, but it is not initialized at that stage. Just do the necessary thing in the early register on SoCs and not the complete initialization to read out the nvram from the flash chip. After it is possible to read out the nvram, the sprom should be parsed from it and the full initialization of the cores should be run. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-11bcma: fix CC driver compilation on MIPSRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: use custom printing functionsRafał Miłecki
Having bus number printed makes it much easier to anaylze logs on systems with more buses. For example Netgear WNDR4500 has 3 AMBA buses in total, which makes standard log really messy. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-31bcma: fix implicit use of export.h contentsPaul Gortmaker
Fix in advance, or we will get things like this: drivers/bcma/core.c:20: warning: data definition has no type or storage class drivers/bcma/core.c:20: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' drivers/bcma/core.c:20: warning: parameter names (without types) in function declaration Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-08-08bcma: add serial console supportHauke Mehrtens
This adds support for serial console to bcma, when operating on an SoC. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcma: add functions to scan cores needed on SoCsHauke Mehrtens
The chip common and mips core have to be setup early in the boot process to get the cpu clock. bcma_bus_early_register() gets pointers to some space to store the core data and searches for the chip common and mips core and initializes chip common. After that was done and the kernel is out of early boot we just have to run bcma_bus_register() and it will search for the other cores, initialize and register them. The cores are getting the same numbers as before. Acked-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-18bcma: cc: set GPIOTIMER registerRafał Miłecki
We use value supplied via SPROM, or default 10:90 as fallback. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-07Update my e-mail addressMichael Büsch
Signed-off-by: Michael Buesch <m@bues.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-11bcma: add missing GPIO defines, use PULL register only when availableRafał Miłecki
Similar patch was commited to ssb. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-10bcma: add Broadcom specific AMBA bus driverRafał Miłecki
Broadcom has released cards based on a new AMBA-based bus type. From a programming point of view, this new bus type differs from AMBA and does not use AMBA common registers. It also differs enough from SSB. We decided that a new bus driver is needed to keep the code clean. In its current form, the driver detects devices present on the bus and registers them in the system. It allows registering BCMA drivers for specified bus devices and provides them basic operations. The bus driver itself includes two important bus managing drivers: ChipCommon core driver and PCI(c) core driver. They are early used to allow correct initialization. Currently code is limited to supporting buses on PCI(e) devices, however the driver is designed to be used also on other hosts. The host abstraction layer is implemented and already used for PCI(e). Support for PCI(e) hosts is working and seems to be stable (access to 80211 core was tested successfully on a few devices). We can still optimize it by using some fixed windows, but this can be done later without affecting any external code. Windows are just ranges in MMIO used for accessing cores on the bus. Cc: Greg KH <greg@kroah.com> Cc: Michael Büsch <mb@bu3sch.de> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: George Kashperko <george@znau.edu.ua> Cc: Arend van Spriel <arend@broadcom.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Russell King <rmk@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Andy Botting <andy@andybotting.com> Cc: linuxdriverproject <devel@linuxdriverproject.org> Cc: linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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