Commit Graph

148 Commits

Author SHA1 Message Date
Alban Bedel fe8766dd67 MIPS: ath79: Remove some unused code from setup.c
Remove the unused defines for the reference clocks rate
and the useless machine init function.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11505/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-04 09:42:26 +01:00
Alban Bedel c166fe78d0 MIPS: ath79: Allow using ath79_ddr_wb_flush() from drivers
Move the declaration of ath79_ddr_wb_flush() to asm/mach-ath79/ath79.h
to allow using it from drivers. This is needed to move the CPU IRQ
driver to drivers/irqchip.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alexander Couzens <lynxis@fe80.eu>
Cc: Joel Porquet <joel@porquet.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11502/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-04 09:42:25 +01:00
Alban Bedel f9a3e047bc MIPS: ath79: Prepare moving the MISC driver to drivers/irqchip
To prepare moving out of the arch directory rework the MISC
implementation to use irq domains instead of hard coded IRQ numbers.
Also remove the uses of the ath79_reset_base global pointer in the IRQ
methods.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alexander Couzens <lynxis@fe80.eu>
Cc: Joel Porquet <joel@porquet.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11506/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-04 09:42:25 +01:00
Alban Bedel a797a0cf9c MIPS: ath79: Remove useless #ifdef CONFIG_IRQCHIP
IRQCHIP is always enabled, so the #ifdef can just be removed.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alexander Couzens <lynxis@fe80.eu>
Cc: Joel Porquet <joel@porquet.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11504/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-04 09:42:25 +01:00
Alban Bedel 55f1d5988c MIPS: ath79: Add a machine entry for booting OF machines
As I'm using a board with a broken old bootloader I hardcoded the
mips_machtype and did't notice that the machine entry was still
missing.

[ralf@linux-mips.org: Fixed spelling message noticed by Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com>.]

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11503/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-20 15:44:57 +01:00
Alban Bedel 5011a7e808 MIPS: ath79: Fix the DDR control initialization on ar71xx and ar934x
The DDR control initialization needs to know the SoC type, however
ath79_detect_sys_type() was called after ath79_ddr_ctrl_init().
Reverse the order to fix the DDR control initialization on ar71xx and
ar934x.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
CC: stable@vger.kernel.org # v4.2+
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11500/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-20 12:10:09 +01:00
Alexander Couzens 19446da415 MIPS: ATH79: Add irq chip ar7240-misc-intc
The ar7240 misc irq chip use ack handler
instead of ack_mask handler. All new ath79 chips use
the ar7240 misc irq chip

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Acked-by: Alban Bedel <albeu@free.fr>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11164/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-22 19:07:11 +02:00
Alexander Couzens 84dedd71cf MIPS: ATH79: Set missing irq ack handler for ar7100-misc-intc irq chip
The irq ack handler was forgotten while introducing OF support.
Only ar71xx and ar933x based devices require it.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Acked-by: Alban Bedel <albeu@free.fr>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11163/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-22 19:05:56 +02:00
Thomas Gleixner bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Alban Bedel 1d473c2cb9 MIPS: ath79: Move the GPIO driver to drivers/gpio
GPIO drivers should be in drivers/gpio

Signed-off-by: Alban Bedel <albeu@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10597/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:02 +02:00
Alban Bedel f689332b19 MIPS: Ath79: Remove the unused GPIO function API
To prepare moving the GPIO driver to drivers/gpio remove the
platform specific pinmux API. As it is not used by any board,
and such functionality should better be implemented using the
pinmux subsystem just removing it seems to be the best option.

Signed-off-by: Alban Bedel <albeu@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10596/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:02 +02:00
Thomas Gleixner 9d9a2fa7dc MIPS: ath91: Remove pointless irqdisable/enable
The various interrupt flow handlers in ath79 are cascading interrupt
handlers. They all have a disable_irq_nosync()/enable_irq() pair
around the generic_handle_irq() call. The value of this disable/enable
is zero because its a complete noop:

disable_irq_nosync() merily increments the disable count without
actually masking the interrupt. enable_irq() soleley decrements the
disable count without touching the interrupt chip. The interrupt
cannot arrive again because the complete call chain runs with
interrupts disabled.

Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Patchwork: https://patchwork.linux-mips.org/patch/10703/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:31 +02:00
Alban Bedel 7653716bf9 MIPS: ath79: irq: IRQCHIP_DECLARE moved to linux/irqchip.h
Remove the ugly cross tree include now that IRQCHIP_DECLARE moved to
linux/irqchip.h.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10633/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:02 +02:00
Felix Fietkau 0cb0985f57 MIPS: Export get_c0_perfcount_int()
get_c0_perfcount_int is tested from oprofile code. If oprofile is
compiled as module, get_c0_perfcount_int needs to be exported, otherwise
it cannot be resolved.

Fixes: a669efc4a3 ("MIPS: Add hook to get C0 performance counter interrupt")
Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: abrestic@chromium.org
Patchwork: https://patchwork.linux-mips.org/patch/10763/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-03 09:25:18 +02:00
Alban Bedel a5fcc6522f MIPS: Add basic support for the TL-WR1043ND version 1
Add a DTS for TL-WR1043ND version 1 and allow to have it built in the
kernel to circumvent the broken u-boot found on these boards.
Currently only the UART, LEDs and buttons are supported.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:54:10 +02:00
Alban Bedel 2ddf3a7922 MIPS: ath79: Add OF support to the GPIO driver
Replace the simple GPIO chip registration by a platform driver
and make ath79_gpio_init() just register the device.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:54:09 +02:00
Alban Bedel 6451af0220 MIPS: ath79: Add OF support to the clocks
Allow using the SoC clocks in the device tree.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:54:06 +02:00
Alban Bedel b29e8b87d5 MIPS: ath79: Add OF support to the IRQ controllers
Add OF support for the CPU and MISC interrupt controllers of most
supported ATH79 devices.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:54:03 +02:00
Alban Bedel 03c8c407a8 MIPS: ath79: Add basic device tree support
Add the bare minimum to load a device tree.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:54:01 +02:00
Alban Bedel 411520af8e MIPS: ath79: Use the common clk API
Make the code simpler and open the way for device tree clocks.

[ralf@linux-mips.org: Resolved conflict with 2a552da6 (MIPS/IRQCHIP: Move
irq_chip from arch/mips to drivers/irqchip.)]

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9774/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:51 +02:00
Alban Bedel 24b0e3e84f MIPS: ath79: Improve the DDR controller interface
The DDR controller need to be used by the IRQ controller to flush
the write buffer of some devices before running the IRQ handler.
It is also used by the PCI controller to setup the PCI memory windows.

The current interface used to access the DDR controller doesn't
provides any useful abstraction and simply rely on a shared global
pointer.

Replace this by a simple API to setup the PCI memory windows and use
the write buffer flush independently of the SoC type. That remove the
need for the shared global pointer, simplify the IRQ handler code.

[ralf@linux-mips.org: Folded in Alban Bedel's follup fix.]

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9773/
Patchwork: http://patchwork.linux-mips.org/patch/10543/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:51 +02:00
Alban Bedel 626a0695a6 MIPS: ath79: Correctly name the defines for the PLL_FB register
This register is named PLL_FB and is not a divider but a multiplier.
To make things less confusing rename the ARxxxx_PLL_DIV_SHIFT and
ARxxxx_PLL_DIV_MASK macros to ARxxxx_PLL_FB_SHIFT and
ARxxxx_PLL_FB_MASK.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9772/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:49 +02:00
Alban Bedel a26484bb7e MIPS: ath79: Add a missing new line in log message
The memory setup log is missing a new line.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9771/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-02 16:07:31 +02:00
Laurent Fasnacht 556b6629c1 MIPS: ath79: fix build problem if CONFIG_BLK_DEV_INITRD is not set
initrd_start is defined in init/do_mounts_initrd.c, which is only
included in kernel if CONFIG_BLK_DEV_INITRD=y.

Signed-off-by: Laurent Fasnacht <l@libres.ch>
Cc: linux-mips@linux-mips.org
Cc: trivial@kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10198/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-05-29 20:23:36 +02:00
Helmut Schaa c1bed31f9c MIPS: ath79: Increase max memory limit to 256MByte
At least QCA955x can handle up to 256MBytes.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: linux-mips@linux-mips.org
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Patchwork: https://patchwork.linux-mips.org/patch/8738/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:57 +02:00