Add SoC specific PCI IRQ map, and register platform
devices for the two built-in PCIe RCs.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4951/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The SoC has a built-in wireless MAC. Register a platform
device for that to make it usable with the ath9k driver.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4956/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Similarly to the preceding SoCs, the QCA955X SoCs
also have a built-in NS16650 compatible UART.
Register the platform device for that to make
it usable.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4949/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The ath79_device_reset_* are causing BUG when
those are used on the QCA955x SoCs. The patch
adds the required code to avoid that.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4948/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The existing code can handle the GPIO controller of
the QCA955x SoCs. Add a minimal glue code to make it
working.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4947/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The IRQ routing in the QCA955x SoCs is slightly
different from the routing implemented in the
already supported SoCs.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4955/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The patch adds code to get various clock frequencies
from the PLLs used in the QCA955x SoCs.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4945/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Also add 'soc_is_qca955[68x]' helper functions
and a Kconfig symbol for the SoC family.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4943/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The patch allows to see kernel messages on the
QCA955X SoCs in early boot stage.

Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4944/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The '.start' field of the IRQ resource assigned twice
in ar934x_wmac_setup(). The second assignment must
set the '.end' field. Fix it.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4954/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The current code uses static resources and static platform
device instances for the possible USB controllers in the
system. These static variables contains initial values which
leads to data segment pollution.

Remove the static variables and use dynamically allocated
structures instead.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4933/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Use the ATH79_MISC_IRQ() macro instead.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4930/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Remove the individual ATH79_CPU_IRQ_* constants and
use the new macro instead of those.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4929/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4927/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The command register of the PCI controller is
not initialized correctly by the bootloader on
some boards and this leads to non working PCI
bus.

Add code to initialize the command register
from the Linux code to avoid this.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4916/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Static resources become impractical when multiple
PCI controllers are present. Move the resources
into the platform device registration code and
change the probe routine to get those from there
platform device's resources.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4914/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

This is needed for multiple PCI bus support.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4913/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The functions are unused now, so remove them.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4909/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The pci-ar71xx and pci-ar724x drivers were converted
into platform drivers. Register the corresponding
platform devices for the PCI controllers instead
of using the ar7{1x,24}x_pcibios_init functions.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4908/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The current code uses multiple if statements for
demultiplexing the different interrupt sources.
Additionally, the MISC interrupt controller has
32 interrupt sources and the current code does not
handles all of them.

Get rid of the if statements and process all interrupt
sources in a loop to fix these issues.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4874/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Make ath79_gpio_function_{en,dis}able to be wrappers
around ath79_gpio_function_setup.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4871/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

GPIO function selection is not working on the AR934x
SoCs because the offset of the function selection
register is different on those.

Add a helper routine which returns the correct
register address based on the SoC type, and use
that in the 'ath79_gpio_function_*' routines.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4870/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

This patch (as1623) removes the ehci_port_power() routine and all the
places that call it.  There's no reason for ehci-hcd to change the
port power settings; the hub driver takes care of all that stuff.

There is one exception: When the controller is resumed from
hibernation or following a loss of power, the ports that are supposed
to be handed over to a companion controller must be powered on first.
Otherwise the handover won't work.  This process is not visible to the
hub driver, so it has to be handled in ehci-hcd.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Besides the CPU and DDR PLLs, the CPU and DDR frequencies
can be derived from other PLLs in the SRIF block on the
AR934x SoCs. The current code does not checks if the SRIF
PLLs are used and this can lead to incorrectly calculated
CPU/DDR frequencies.

Fix it by calculating the frequencies from SRIF PLLs if
those are used on a given board.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Cc: <stable@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4324/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The current dividers in the code are wrong and this
leads to broken CPU frequency calculation on boards
where the fractional part is used.

For example, if the SoC is running from a 40MHz
reference clock, refdiv=1, nint=14, outdiv=0 and
nfrac=31 the real frequency is 579.375MHz but the
current code calculates 569.687MHz instead.

Because the system time is indirectly related to
the CPU frequency the broken computation causes
drift in the system time.

The correct divider is 2^6 for the CPU PLL and 2^10
for the DDR PLL. Use the correct values to fix the
issue.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4305/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4173/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4172/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

This improves code readability, and ensures that
all resource fields will be initialized correctly.
Additionally, it helps to reduce the size of the
kernel image by using uninitialized resource
variables.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4171/Signed-off-by: NJohn Crispin <blogic@openwrt.org>

The currently assigned IRQ number to the OHCI controller is incorrect for
the AR7240 SoC, and that leads to the following error message from the
OHCI driver:

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ath79-ohci ath79-ohci: Atheros built-in OHCI controller
ath79-ohci ath79-ohci: new USB bus registered, assigned bus number 1
ath79-ohci ath79-ohci: irq 14, io mem 0x1b000000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
usb 1-1: new full-speed USB device number 2 using ath79-ohci
ath79-ohci ath79-ohci: Unlink after no-IRQ?  Controller is probably using the wrong IRQ.

Fix this by using the correct IRQ number.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4168/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The AR724[12] SoCs have more GPIO lines than the AR7240.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Cc: Cc: linux-mips@linux-mips.org
Patchwork: https://http://patchwork.linux-mips.org/patch/4167/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3517/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3516/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The AR724X specific PCI code can be used for the
AR934X SoCs, however it can be selected only if
SOC_AR724X is set.

Introduce a new Kconfig symbol in order to be able
to use the code for AR934X as well.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3514/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3513/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3512/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3511/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3510/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The current implementation assumes that flushing the
DDR writeback buffer is required for IP2/IP3 interrupts,
however this is not true for all SoCs.

Use SoC specific IP2/IP3 handlers instead of flushing
the buffers in the dispatcher code.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3509/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3508/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3507/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>