The device trees for Renesas SoCs use either pfc or pin-controller as the
node name for the PFC device. This patch is intended to take a step towards
unifying the node name used as pin-controller which appears to be the more
generic of the two and thus more in keeping with the DT specs.
My analysis is that this is a user-visible change to the extent that kernel
logs, and sysfs entries change from e6050000.pfc and pfc@e6050000 to
e6050000.pin-controller and pin-controller@e6050000.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link the ARM GIC to the INTC-SYS module clock and the C4 power domain,
so it can be power managed using that clock in the future.
Note that currently the GIC-400 driver doesn't support module clocks nor
Runtime PM, so this must be handled as a critical clock.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The Cortex-A15/A7 cache controllers are integrated controllers, and thus
the device nodes representing them should not have unit-addresses or reg
properties.
Fixes: b0da45c60d ("ARM: dts: r8a73a4: Fix W=1 dtc warnings")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Since everybody copied my own mistake from the DT binding example,
let's address all the offenders in one swift go.
Most of them got the CPU interface size wrong (4kB, while it should
be 8kB), except for both keystone platforms which got the control
interface wrong (4kB instead of 8kB).
In a few cases where I knew for sure what implementation was used,
I've added the "arm,gic-400" compatible string. I'm 99% sure that
this is what everyone is using, but short of having the TRM for
all the other SoCs, I've left them alone.
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Use the SoC-specific compat string for mmcif in DT for the r8a73a4 SoC.
This is in keeping with the use of compat strings for mmcif for other
Renesas ARM based SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a device node for the Product Register, which provides SoC product
and revision information.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Warning (unit_address_vs_reg): Node /cache-controller@0 has a unit name, but no reg property
Warning (unit_address_vs_reg): Node /cache-controller@1 has a unit name, but no reg property
Move the cache-controller nodes under the cpus node, and make their
unit names and reg properties match the MPIDR values.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Fixed rate and fixed factor clocks do not require an
clock-output-names property.
* Since 07705583e9 ("clk: shmobile: div6: Make clock-output-names
optional") Renesas div6 clocks do not require a clock-output-names
property.
In the above cases there is only one clock output and its name is taken
from that of the clock node. Accordingly, remove the unnecessary
clock-output-names properties and as necessary update the node names.
The clock-output-names property is left in place for the zb_clk which is
thus treated as a special case as the MSTP clock driver (clk-mstp.c)
explicitly looks for a clock with node name zb_clk for the r8a73a4 and
sh73a0 SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add device nodes for the L2 caches, and link the CPU node to its L2
cache node.
The L2 cache for the Cortex-A15 CPU cores is 1 MiB large (organized as
64 KiB x 16 ways), and located in PM domain A3SM.
The L2 cache for the Cortex-A7 CPU cores is 512 KiB large (organized as
64 KiB x 8 ways), and located in PM domain A3KM.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The clock is really the device functional clock, not the interface
clock. Rename it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Use GIC_* defines for GIC interrupt cells in r8a73a4 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
If a GPIO driver uses gpiochip_add_pin_range() (which is usually the
case for GPIO/PFC combos), the GPIO hogging mechanism configured from DT
doesn't work:
requesting hog GPIO led1-high (chip r8a73a4_pfc, offset 28) failed
The actual error code is -517 == -EPROBE_DEFER.
The problem is that PFC+GPIO registration is handled in multiple steps:
1. pinctrl_register(),
2. gpiochip_add(),
3. gpiochip_add_pin_range().
Configuration of the hogs is handled in gpiochip_add():
gpiochip_add
of_gpiochip_add
of_gpiochip_scan_hogs
gpiod_hog
gpiochip_request_own_desc
__gpiod_request
chip->request
pinctrl_request_gpio
pinctrl_get_device_gpio_range
However, at this point the GPIO controller hasn't been added to
pinctrldev_list yet, so the range can't be found, and the operation fails
with -EPROBE_DEFER.
To fix this, add a "gpio-ranges" property to the gpio device node, so
the ranges are added by of_gpiochip_add_pin_range(), which is called by
of_gpiochip_add() before the call to of_gpiochip_scan_hogs().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Replace the "arm,cortex-a15-gic" compatible value for the GIC by
"arm,gic-400", as the documentation states it's a GIC-400.
This has been confirmed by reading the GICD_IIDR register, which reports
0x0200043b (GIC-400 = 0x02, ARM = 0x43b).
This has no effect on runtime behavior, as currently the GIC driver
treats both compatible values the same.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Link the external IRQ controllers irqc0 and irqc1 to the IRQC module
clock, so they can be power managed using that clock.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[horms: corrected typo in changelog to refer to r8a73a4]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add a device node for the System Controller, with subnodes that
represent the hardware power area hierarchy.
Hook up all devices to their respective PM domains.
Add a minimal device node for the Coresight-ETM hardware block, and
hook it up to the D4 PM domain, so the R-Mobile System Controller
driver can keep the domain powered, until the new Coresight code
handles runtime PM.
The System Controller is also used by the R-Mobile Reset driver, which
can now restart the system.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Currently the pin function controller (which is also a GPIO controller)
is instantiated before the interrupt controllers due to the order in the
DTS. At that time, the irq domains for the interrupt controllers
referenced by its interrupts-extended property cannot be found yet:
irq: no irq domain found for /interrupt-controller@e61c0000 !
Nevertheless, the core OF probing code ignores this failure, besides a
debug message that's not normally printed:
not all legacy IRQ resources mapped for pfc
and continues initialization of the device. Then, the sh-pfc driver
cannot find any IRQ resources, and thinks no interrupts are available,
causing gpio-keys to fail later:
gpio-keys keyboard: Unable to claim irq 0; error -22
gpio-keys: probe of keyboard failed with error -22
Move the pin function controller node after the interrupt controller
nodes it references to work around the bug in the core OF probing code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add a node for the Bus State Controller (BSC) on r8a73a4, to which
multiple external devices can be connected.
The BSC is driven by the ZB clock, and located in PM domain C4.
A reference to the latter will be added later.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add device nodes for the two DDR Bus State Controllers (DBSC).
The DBSCs are located in the A3BC PM domain, which must not be powered
down, else the system will crash.
A reference to the A3BC PM domain will be added later.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Add labels for LEDs on kzm9g-reference and koelsch
* Add Sound support to r8a7790/lager and r8a7791/koelsch
* Add IIC DMA nodes to r8a7790 and r8a7791
* Use SoC-specific IIC compatible properties on sh73a0 and r8a73a4
* Add SGX, MMP and VSP1 clocks to r8a7794
* Add USBDMAC{0,1} clocks to r8a7790 and r8a7791
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Merge tag 'renesas-dt2-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Pull "Second Round of Renesas ARM Based SoC DT Updates for v3.19" from Simon Horman:
* Add labels for LEDs on kzm9g-reference and koelsch
* Add Sound support to r8a7790/lager and r8a7791/koelsch
* Add IIC DMA nodes to r8a7790 and r8a7791
* Use SoC-specific IIC compatible properties on sh73a0 and r8a73a4
* Add SGX, MMP and VSP1 clocks to r8a7794
* Add USBDMAC{0,1} clocks to r8a7790 and r8a7791
* tag 'renesas-dt2-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (29 commits)
ARM: shmobile: r8a7791: add USBDMAC{0,1} clocks to device tree
ARM: shmobile: r8a7790: add USBDMAC{0,1} clocks to device tree
ARM: shmobile: r8a7794: Add MMP and VSP1 clocks to device tree
ARM: shmobile: r8a7794: Add SGX clock to device tree
ARM: shmobile: koelsch: add Volume Ramp usage on comment
ARM: shmobile: lager: add Volume Ramp usage on comment
ARM: shmobile: r8a7791: add DMA nodes for IIC
ARM: shmobile: r8a7790: add DMA nodes for IIC
ARM: shmobile: kzm9g-reference dts: Add labels for the LEDs
ARM: shmobile: koelsch dts: Add labels for the LEDs
ARM: shmobile: sh73a0 dtsi: Add SoC-specific IIC compatible properties
ARM: shmobile: r8a73a4 dtsi: Add SoC-specific IIC compatible properties
ARM: shmobile: koelsch: Sound DMA support via DVC on DTS
ARM: shmobile: koelsch: Sound DMA support via SRC on DTS
ARM: shmobile: koelsch: Sound DMA support via BUSIF on DTS
ARM: shmobile: koelsch: Sound DMA support on DTS
ARM: shmobile: koelsch: Sound PIO support on DTS
ARM: shmobile: koelsch: fixup I2C2 clock frequency
ARM: shmobile: lager: Sound DMA support via DVC on DTS
ARM: shmobile: lager: Sound DMA support via SRC on DTS
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The IIC nodes used the generic compatible properties only.
This may cause the driver to fail when using Standard Speed on IIC
masters where the operational clock is driven by the 130 MHz HP clock.
Add the SoC-specific compatible property to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Ports are named scifb0-3, not scifb2-5.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The CMT1 timer used the generic compatible property only.
Add the SoC-specific one, which is already documented, to make it future
proof.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This describes all of the CMT1 hardware of the r8a73a4.
The node is disabled and may be enabled as necessary by board DTS files.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
[horms+renesas@verge.net.au: updated for removal of dma-multiplexer base
address]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
As there is no reg property the dma-multiplexer nodes should
not include @...
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The interrupt controller used the generic compatible property only.
Add the SoC-specific one, to make it future proof.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The thermal node used the generic compatible property only.
Add the SoC-specific one, to make it future proof.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This describes all of the SCIF hardware of the r8a73a4.
Each node is disabled and may be enabled as necessary
by board DTS files.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
There's no need to duplicate the interrupt-parent property in all DT
nodes as the kernel automatically walks parent nodes to find the
property. Specify it once in the root node only.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
According to ePAPR spec,
this patch tidies up DT node name and related clock.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
- Always build in board-generic, and add pdata quirks and auxdata
support for it so we have all the pdata related quirks
in the same place.
- Merge of the drivers/pinctrl changes that are needed for PM
to continue working on omap3 and also needed for other omaps
eventually. The three pinctrl related patches have been acked
by Linus Walleij and are pulled into both the pinctrl tree
and this branch.
- Few defconfig related changes for drivers needed.
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Merge tag 'omap-for-v3.13/quirk-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
From Tony Lindgren:
Changes needed to prepare for making omap3 device tree only:
- Always build in board-generic, and add pdata quirks and auxdata
support for it so we have all the pdata related quirks
in the same place.
- Merge of the drivers/pinctrl changes that are needed for PM
to continue working on omap3 and also needed for other omaps
eventually. The three pinctrl related patches have been acked
by Linus Walleij and are pulled into both the pinctrl tree
and this branch.
- Few defconfig related changes for drivers needed.
* tag 'omap-for-v3.13/quirk-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (523 commits)
ARM: configs: omap2plus_defconfig: enable dwc3 and dependencies
ARM: OMAP2+: Add WLAN modules and of_serial to omap2plus_defconfig
ARM: OMAP2+: Run make savedefconfig on omap2plus_defconfig to shrink it
ARM: OMAP2+: Add minimal 8250 support for GPMC
ARM: OMAP2+: Use pdata quirks for wl12xx for omap3 evm and zoom3
ARM: OMAP: Move DT wake-up event handling over to use pinctrl-single-omap
ARM: OMAP2+: Add support for auxdata
pinctrl: single: Add support for auxdata
pinctrl: single: Add support for wake-up interrupts
pinctrl: single: Prepare for supporting SoC specific features
ARM: OMAP2+: igep0020: use display init from dss-common
ARM: OMAP2+: pdata-quirks: add legacy display init for IGEPv2 board
+Linux 3.12-rc4
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Add a DT node for the only system DMAC instance on r8a73a4. The RT DMAC
can be added later under the same multiplexer, because they can serve the
same slaves and use the same MID-RID values. Configuration data is
supplied to the driver, using a compatibility match string.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Currently all I2C interfaces in all *.dtsi files for various Renesas SoCs
are enabled by default. Switch them all off and only enable populated I2C
interfaces in board-specific *.dts files.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Currently DT compatibility strings of both types can be found in the kernel
sources: <unit>-<soc> and <soc>-<unit>, whereas a unique format should be
followed and the former one is preferred. This patch converts the SDHI
MMC driver and its users to the common standard. This is safe for now, since
ATM no real products are using this driver with DT.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Chris Ball <cjb@laptop.org>
[Removed r8a7740.dtsi portion as it is not applicable]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
SH Mobile pinctrl DT support
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Merge tag 'renesas-pinmux-for-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
From Simon Horman:
Renesas ARM based SoC pinmux updates for v3.12
SH Mobile pinctrl DT support
* tag 'renesas-pinmux-for-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: kzm9g-reference: Add LED1-LED4 to the device tree
ARM: shmobile: kzm9g-reference: Move SDHI regulators to DT
ARM: shmobile: kzm9g-reference: Move pinctrl mappings to device tree
ARM: shmobile: marzen-reference: Add LED2-LED4 to the device tree
ARM: shmobile: marzen-reference: Move pinctrl mappings to device tree
ARM: shmobile: armadillo-reference: Add LED1-LED4 to the device tree
ARM: shmobile: armadillo-reference: Move st1232 reset GPIO to DT
ARM: shmobile: armadillo-reference: Add st1232 pin mappings
ARM: shmobile: armadillo-reference: Move pinctrl mappings to device tree
ARM: shmobile: sh73a0: Add pin control device to device tree
ARM: shmobile: sh7372: Add pin control device to device tree
ARM: shmobile: r8a7790: Add GPIO controller devices to device tree
ARM: shmobile: r8a7790: Add pin control device to device tree
ARM: shmobile: r8a7779: Add GPIO controller devices to device tree
ARM: shmobile: r8a7779: Add pin control device to device tree
ARM: shmobile: r8a7778: Add GPIO controller devices to device tree
ARM: shmobile: r8a7778: Add pin control device to device tree
ARM: shmobile: r8a7740: Add pin control device to device tree
ARM: shmobile: r8a73a4: Add pin control device to device tree
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/boot/dts/r8a73a4.dtsi
arch/arm/boot/dts/r8a7790.dtsi
Add a pfc node to the r8a73a4 device tree.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[g.liakhovetski+renesas@gmail.com use 2 nodes for address and size]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This adds DT templates for all MMCIF and SDHI controllers on r8a73a4.
They are added with status="disabled". To use them platform-specific
DTs have to enable the required ones.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add Device Tree nodes for the 9 I2C controllers on r8a73a4, compatible with
the i2c-sh_mobile.c driver.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Remove unused GIC CPU interface DT bits for r8a73a4.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The r8a73a4 SoC supports LPAE and has memory window up to
0x2ffffffff. Convert to 64-bit addresses by enlarging
#addr-cells and #size-cells to 2.
Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
You can get current thermal by
> cat /sys/class/thermal/thermal_zone?/temp
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add IRQC interrupt controller support to r8a73a4 by
hooking up two IRQC instances to handle 58 external
IRQ signals. There IRQC controllers are tied to SPIs
of the GIC. On r8a73a4 exact IRQ pin routing is handled
by the PFC which is excluded from this patch.
Both platform devices and DT devices are added in this
patch. The platform device versions are used to provide
a static interrupt map configuration for board code
written in C.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
V3 of initial support for the r8a73a4 SoC including:
- Single Cortex-A15 CPU Core
- GIC
- Architecture timer
No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
