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path: root/drivers/bcma/driver_chipcommon_pmu.c
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2018-02-27bcma: Replace mdelay with usleep_range in bcma_pmu_resources_initJia-Ju Bai1-1/+1
After checking all possible call chains to bcma_pmu_resources_init() here, my tool finds that this function is never called in atomic context, namely never in an interrupt handler or holding a spinlock. Thus mdelay can be replaced with usleep_range to avoid busy wait. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-02-06bcma: support PMU present as separated bus coreRafał Miłecki1-42/+52
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>
2016-02-06bcma: use _PMU_ in all names of PMU registersRafał Miłecki1-23/+23
PMU (Power Management Unit) seems to be a separated piece of hardware, just accessed using ChipCommon core registers. In recent Broadcom chipsets PMU is not bounded to CC but available as separated core. To make code cleaner & easier to review (for a correct R/W access) use clearer names. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2014-07-29bcma: add support for BCM43131 that was found in Tenda W311ERafał Miłecki1-0/+1
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-18bcma: add support for BCM43217 found in Tenda W322E (14e4:43a9)Rafał Miłecki1-0/+1
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-27bcma: add support for BCM43142Rafał Miłecki1-0/+123
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-27bcma: handle more devices in bcma_pmu_get_alp_clock()Hauke Mehrtens1-4/+20
Add some more chip IDs to bcma_pmu_get_alp_clock() Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-27bcma: use BCMA_CC_PMU_CTL_* constantsHauke Mehrtens1-5/+5
Instead of hard coding these values use the existing constants. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-09bgmac: driver for GBit MAC core on BCMA busRafał Miłecki1-1/+2
BCMA is a Broadcom specific bus with devices AKA cores. All recent BCMA based SoCs have gigabit ethernet provided by the GBit MAC core. This patch adds driver for such a cores registering itself as a netdev. It has been tested on a BCM4706 and BCM4718 chipsets. In the kernel tree there is already b44 driver which has some common things with bgmac, however there are many differences that has led to the decision or writing a new driver: 1) GBit MAC cores appear on BCMA bus (not SSB as in case of b44) 2) There is 64bit DMA engine which differs from 32bit one 3) There is no CAM (Content Addressable Memory) in GBit MAC 4) We have 4 TX queues on GBit MAC devices (instead of 1) 5) Many registers have different addresses/values 6) RX header flags are also different The driver in it's state is functional how, however there is of course place for improvements: 1) Supporting more net_device_ops 2) SUpporting more ethtool_ops 3) Unaligned addressing in DMA 4) Writing separated PHY driver Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtdLinus Torvalds1-1/+2
Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
2012-12-10bcma: unify naming schema for clock functionsRafał Miłecki1-18/+21
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-22bcma: export PLL reading functionRafał Miłecki1-1/+2
This is required by NAND flash driver for initializing wait counters. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-10-19bcma: just do the necessary things in early register on SoCsHauke Mehrtens1-1/+4
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>
2012-09-28bcma: change delays to follow timers-howto guideRafał Miłecki1-1/+4
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-10bcma: make some functions staticHauke Mehrtens1-2/+2
The functions and structs are not used in an other file and the prototypes are in no header file, just make them static so the compiler is able to optimize them better. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-26bcma: fix invalid PMU chip control masksHauke Mehrtens1-4/+4
Commit b9562545ef0b ("bcma: complete workaround for BCMA43224 and BCM4313") introduced the wrong masks for setting the chip control registers - the "mask" parameter is inverse. It should be the mask of bits *not* changed, which is admittedly a bit non-intuitive. The incorrect mask not only causes the driver to not work correctly on the chips affected (eg the BCM43224 on the Macbook Air 4,2) but the state persists over a soft reset, causing the next boot to not necessarily see the device correctly. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Tested-by: Seth Forshee <seth.forshee@canonical.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Arend Van Spriel <arend@broadcom.com> Cc: Pieter-Paul Giesberts <pieterpg@broadcom.com> Cc: Brett Rudley <brudley@broadcom.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11bcma: add PMU clock support for BCM4706Hauke Mehrtens1-4/+36
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Tested-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: use custom printing functionsRafał Miłecki1-14/+12
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>
2012-07-09bcma: add mdelay bcma_pmu_resources_init()Hauke Mehrtens1-0/+3
This is based on code from brcmsmac. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: add bcma_pmu_spuravoid_pllupdate()Hauke Mehrtens1-1/+182
This function is needed by brcmsmac. This code is based on code from the Broadcom SDK. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: remove chip ids doing nothing from PMU initialization.Hauke Mehrtens1-10/+4
The list of devices where nothing has to be done in bcma_pmu_resources_init() and bcma_pmu_workarounds() is longer as all the SoCs are missing there and some new devices will be added in some time later. This patch changes the default case to just log on debug level and also let the other devices which do not need any special handling into the default case, instead of adding the missing 8 SoC chip ids. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: remove bcma_pmu_{pll,swreg}_init()Hauke Mehrtens1-34/+0
These functions are doing nothing in the current code. I do not think we will need these function in the future as the corresponding functions in the Broadcom SDK are just doing something useful on chips supported by ssb or fullmac chips. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: complete workaround for BCMA43224 and BCM4313Hauke Mehrtens1-5/+17
This code is based on the Broadcom SDK and brcmsmac. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: remove fix for 4329b0 bad LPOM is detectionHauke Mehrtens1-3/+0
There is not core id with 0x4329, but at the same place in the open source part of the Broadcom SDK is a check for some device with the chip id of 0x4329. The device with a chip id of 0x4329 is a full mac device, so it will never be supported by bcma, this part is running in the firmware of the device and not on the host CPU. This code is wrong and will never be used, so just remove it. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: add constants for chip idsHauke Mehrtens1-40/+41
The chip IDs are used all over bcma and no constants where defined. This patch adds the constants and makes bcma use them. Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-09bcma: extend workaround for bcm4331Hauke Mehrtens1-0/+3
This patch is based on a recent version of the Broadcom SDK. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-04bcma: add ext PA workaround for BCM4331 and BCM43431Seth Forshee1-1/+3
MacBook Pro models with BCM4331 wireless have been found to have the ext PA lines disabled after resuming from S3 without external power attach. This causes them to be unable to transmit. Add a workaround to ensure that the ext PA lines are enabled on BCM4331. Also extend all handling of ext PA line muxing to BCM43431 as is done in the Broadcom SDK. BugLink: http://bugs.launchpad.net/bugs/925577 Cc: Arend van Spriel <arend@broadcom.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: stable@vger.kernel.org Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07bcma: silence PMU warning for BCM4331Rafał Miłecki1-0/+1
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 Gortmaker1-0/+1
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>
2011-09-19bcma: cc: export more control functionsRafał Miłecki1-9/+29
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22bcma: implement BCM4331 workaround for external PA linesRafał Miłecki1-1/+19
We need to disable ext. PA lines for reading SPROM. It's disabled by default, but this patch allows using bcma after loading wl, which leaves workaround enabled. Cc: Arend van Spriel <arend@broadcom.com> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcma: get CPU clockHauke Mehrtens1-0/+107
Add method to return the clock of the CPU. This is needed by the arch code to calculate the mips_hpt_frequency. 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 serial console supportHauke Mehrtens1-0/+26
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>
2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
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)
2011-07-07Update my e-mail addressMichael Büsch1-1/+1
Signed-off-by: Michael Buesch <m@bues.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-20bcma: fix BCM43224 rev 0 workaroundRafał Miłecki1-1/+1
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-20bcma: enable support for 14e4:4357 (BCM43225)Rafał Miłecki1-0/+4
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 Miłecki1-0/+134
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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