Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The sanity checks allow 1 and 2 byte reads/writes of the extended
PCI config space to proceed; however, the code only supports 4
byte reads/writes.  This patch adds support for 1 and 2 byte
reads/writes of the extended PCI config space.
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

For PCI config space access offsets < 256 for device '0',
bcma_extpci_write_config performs an 'ioremap_nocache' on a 4 byte
section of the PCI config space (an area that has already
previously been mapped), and then subsequently unmaps that 4 byte
section.  This can't be a good thing for future read access from
that now unmapped location.  Modify the config space writes to use
the existing access functions (similar to how it is done for the reads).
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Consistently jump to the 'out' label for error conditions (adds
missing check for 'func' validity in bcma_extpci_write_config).
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The 'val' has already been read by the prior call to 'mips_busprobe32';
this 'readl' is unnecessary.
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The default irqflag assignment for the I2S core on some Broadcom
4716/4748 devices is invalid and needs to be corrected (from the
Broadcom SDK).
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Update the PCI configuration for BCM4706 and BCM4716 per the 2011
Broadcom SDK.
Signed-off-by: NNathan Hintz <nlhintz@hotmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NNathan Hintz <nlhintz@hotmail.com>
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This error was introduced in:
commit e3f05a42
Author: Hauke Mehrtens <hauke@hauke-m.de>
Date:   Fri Jan 4 00:51:21 2013 +0100

    bcma: mips: explicit assign IRQ numbers

  CC      drivers/bcma/driver_mips.o
drivers/bcma/driver_mips.c: In function 'bcma_core_mips_init':
drivers/bcma/driver_mips.c:302:4: error: implicit declaration of
function 'bcma_core_irq' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[6]: *** [drivers/bcma/driver_mips.o] Error 1
Reported-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The new name better matches the use of this variable.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This member is not needed any more.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Some cores do not have a IRQ assigned and some do not support when an
IRQ is assigned to them, this is now handled and printed out in the
code.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The assignment of the IRQs to the cores of the chips by iterating over
the cores is complicated and causes problems with SoC like the BCM4706
with two GMAC core where just one should get a dedicated IRQ number.
Now the code assigns the same IRQs to the cores as the code from the
Broadcom SDK does. If the SoC is not know the current assigned IRQs are
only read out and an error message is printed.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This bcma_find_core_unit() is needed by the mips driver in the next
patch.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Commit cf0936b0 ("bcma: add GPIO driver")
added BCMA_DRIVER_GPIO, which unconditionally selects GPIOLIB, causing
a Kconfig warning:

warning: (ARCH_REQUIRE_GPIOLIB && SSB_DRIVER_GPIO && BCMA_DRIVER_GPIO && MFD_TC6393XB && FB_VIA) selects GPIOLIB which has unmet direct dependencies (ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB)

and build failure for m68k/allmodconfig:

In file included from include/linux/bcma/bcma.h:8,
                 from drivers/bcma/bcma_private.h:9,
                 from drivers/bcma/main.c:9:
include/linux/bcma/bcma_driver_chipcommon.h:582: error: field ‘gpio’ has incomplete type
In file included from include/linux/bcma/bcma.h:12,
                 from drivers/bcma/bcma_private.h:9,
                 from drivers/bcma/main.c:9:
include/linux/ssb/ssb.h:440: error: field ‘gpio’ has incomplete type
make[4]: *** [drivers/bcma/main.o] Error 1
make[3]: *** [drivers/bcma/] Error 2

Turn the select into a dependency to fix this.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We were using wrong IRQ number so clearing wasn't working at all.
Depending on a platform this could result in a one device having two
interrupts assigned. On BCM4706 this resulted in all IRQs being broken.

Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: stable@vger.kernel.org
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

For devices without a PMU the alp clock is always 20000000.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This fixes the following warning:

  CC      drivers/bcma/driver_pci_host.o
drivers/bcma/driver_pci_host.c: In function 'bcma_core_pci_fixup_addresses':
drivers/bcma/driver_pci_host.c:555:23: error: ignoring return value of
'pci_assign_resource', declared with attribute warn_unused_result
[-Werror=unused-result]
Reported-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This is required by NAND flash driver for initializing wait counters.
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4587Acked-by: NFlorian Fainelli <florian@openwrt.org>

Add description to the function.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4588Acked-by: NFlorian Fainelli <florian@openwrt.org>

Add functions to access the GPIO registers for pullup and pulldown.
These are needed for handling gpio registration.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4586Acked-by: NFlorian Fainelli <florian@openwrt.org>

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: NHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4585Acked-by: NFlorian Fainelli <florian@openwrt.org>

This will fix warnings like following when CONFIG_PM_SLEEP is not set:

        warning: 'xxx_suspend' defined but not used [-Wunused-function]
        warning: 'xxx_resume' defined but not used [-Wunused-function]

Because
	SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)

Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).

Cc: John W. Linville <linville@tuxdriver.com>
Cc: "Rafał Miłecki" <zajec5@gmail.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: NYuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Before it was tried to initialize the deactivated PCIe core in client
mode, but this causes the SoC to hang. Just do not initialize it at all
and ignore the core it is not working and nothing is connected to it
when the specific bit is set in the boardflags.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Sometimes the PCIe card indicates that it has a sprom somewhere and we
are able to read the memory region, but it is empty and not valid. In
these cases we should try to use the fallback sprom as a last chance.

This is the case for the PCIe cards in my ASUS RT-N66U (BCM4706 + 2
times BCM4331) and I have heard of someone having the same problem with
an other PCIe card connected to an other Broadcom SoC.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This makes the code more readable
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There are some devices which are able to boot from nand flash and other
are using a serial flash for booting. Add a bool to indicate that the
device is booted from that flash chip and not from some other chip also
connected to the SoC. This is needed to find the nvram, as it is stored
on the flash the devices booted from.
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>