This adds support for the new tegra30 SoC, as well as small
changes to support minor variations of existing omap SoCs.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
SoC-level changes for tegra and omap
This adds support for the new tegra30 SoC, as well as small
changes to support minor variations of existing omap SoCs.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
arm/tegra: Compile tegra_dt_init_irq only when CONFIG_OF
arm/tegra: Make MACH_TEGRA_DT depend on ARCH_TEGRA_2x_SOC
arm/tegra: Delete tegra_init_clock()
arm/tegra: Fix section mismatch errors in tegra30 pinmux
arm/tegra: Fix section mismatch errors in tegra20 pinmux
arm/tegra: refresh defconfig for tegra30
arm/tegra: add support for tegra30 based board cardhu
arm/tegra: implement support for tegra30
arm/tegra: pinmux tables and definitions for tegra30
arm/tegra: add new fields to struct tegra_pingroup_desc
arm/tegra: prepare pinmux code for multiple tegra variants
arm/tegra: rename tegra20 pinmux files
arm/tegra: generalize L2 cache initialization
arm/tegra: use PMC reset
arm/tegra: rename board-dt.c to board-dt-tegra20.c
arm/tegra: prepare early init for multiple tegra variants
arm/tegra: don't export clk_measure_input_freq
arm/tegra: prepare clock code for multiple tegra variants
arm/tegra: cleanup tegra20 support
arm/tegra: clk_get should not be fatal
...
Fix up trivial conflict in arch/arm/mach-tegra/board-dt-tegra20.c
* samsung/dt: (3 commit)
Merge branch 'depends/rmk/for-linus' into samsung/dt
Merge branch 'depends/rmk/restart' into next/cleanup
Merge branch 'next/cleanup' into samsung/dt
Conflicts:
arch/arm/mach-tegra/board-dt.c
arch/arm/mach-tegra/include/mach/entry-macro.S
The latest version of the samsung/dt branch resolves
all sorts of conflicts with the latest upstream, no functional
changes that are not already there.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Conflicts:
arch/arm/mach-exynos/common.c
The common.c file gets changes from rmk/stable-devel (part of
next/cleanup), rmk/restart, samsung/dt and follow-on branches
from the samsung tree.
Pulling it all together here hopefully avoids having to do
even more conflicting merge changesets in this one file. What
a mess!
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Conflicts:
arch/arm/mach-at91/at91cap9.c
arch/arm/mach-at91/at91sam9260.c
arch/arm/mach-at91/at91sam9261.c
arch/arm/mach-at91/at91sam9263.c
arch/arm/mach-at91/at91sam9g45.c
arch/arm/mach-at91/at91sam9rl.c
arch/arm/mach-exynos/cpu.c
arch/arm/mach-shmobile/board-kota2.c
This resolves a bunch of conflicts between the arm-soc tree
and changes from the arm tree that have gone upstream.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Remove the now empty arch_reset() from all the mach/system.h includes,
and remove its callsite. Remove arm_machine_restart() as this function
no longer does anything useful.
For samsung platforms, remove the include of mach/system-reset.h and
plat/system-reset.h from their respective mach/system.h headers as these
just define their arch_reset functions. As a result, the s3c2410 and
plat-samsung system-reset.h files are no longer referenced, so remove
these files entirely.
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* tegra/dt:
arm/tegra: Seaboard: Add GPIO key device tree nodes
arm/dt: Add ADT7461 to Seaboard
arm/dt: tegra: Use new compatible value for DVC I2C controller
arm/tegra: initial device tree for tegra30
arm/tegra: convert tegra20 to GIC devicetree binding
arm/dt: tegra: Fix SDHCI nodes to match board files
arm/dt: tegra: Fix serial nodes to match board files
arm/dt: tegra: Fix I2C nodes to match board files
arm/dt: tegra: Remove /chosen node
arm/dt: tegra: Remove /memreserve/ from device-tree files
arm/tegra: board-dt: Enable audio-related clocks
arm/tegra: board-dt: Fix AUXDATA typo
arm/dt: tegra: add dts file for paz00
arm/tegra: Add device-tree support for TrimSlice board
arm/dt: tegra: Clean up I2S and DAS nodes
USB: ehci-tegra: add probing through device tree
arm/dt: add basic usb nodes to tegra device trees
arm/tegra: fix variable formatting in makefile
Conflicts:
arch/arm/mach-tegra/Makefile
* tegra/soc:
arm/tegra: Compile tegra_dt_init_irq only when CONFIG_OF
arm/tegra: Make MACH_TEGRA_DT depend on ARCH_TEGRA_2x_SOC
arm/tegra: Delete tegra_init_clock()
arm/tegra: Fix section mismatch errors in tegra30 pinmux
arm/tegra: Fix section mismatch errors in tegra20 pinmux
arm/tegra: refresh defconfig for tegra30
arm/tegra: add support for tegra30 based board cardhu
arm/tegra: implement support for tegra30
arm/tegra: pinmux tables and definitions for tegra30
arm/tegra: add new fields to struct tegra_pingroup_desc
arm/tegra: prepare pinmux code for multiple tegra variants
arm/tegra: rename tegra20 pinmux files
arm/tegra: generalize L2 cache initialization
arm/tegra: use PMC reset
arm/tegra: rename board-dt.c to board-dt-tegra20.c
arm/tegra: prepare early init for multiple tegra variants
arm/tegra: don't export clk_measure_input_freq
arm/tegra: prepare clock code for multiple tegra variants
arm/tegra: cleanup tegra20 support
arm/tegra: clk_get should not be fatal
Conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
This fixes a build break attempting to build a Tegra20-only kernel
without device tree enabled.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Now that Tegra20 and Tegra30 device tree board files are separate,
MACH_TEGRA_DT (which enables the Tegra20 device tree board file) should
depend on Tegra20 support being enabled.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
tegra_init_clock() is written to call tegra2_init_clocks(), which only
exists if Tegra20 support is enabled. This breaks the build of a
Tegra30-only kernel.
tegra_init_clock() isn't actually used any more; tegra20_init_early()
calls tegra2_init_clocks() directly. So, just delete this function.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
tegra30_pinmux_init() is called from the pinmux's probe() function, and
hence should be __devinit not __init.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
tegra20_pinmux_init() is called from the pinmux's probe() function, and
hence should be __devinit not __init.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Update the device tree to indicate which I2C controller is the DVC
controller. AUXDATA needs to be updated too, since the compatible
value changed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
sched_clock() is yet another blocker on the road to the single
image. This patch implements an idea by Russell King:
http://www.spinics.net/lists/linux-omap/msg49561.html
Instead of asking the platform to implement both sched_clock()
itself and the rollover callback, simply register a read()
function, and let the ARM code care about sched_clock() itself,
the conversion to ns and the rollover. sched_clock() uses
this read() function as an indirection to the platform code.
If the platform doesn't provide a read(), the code falls back
to the jiffy counter (just like the default sched_clock).
This allow some simplifications and possibly some footprint gain
when multiple platforms are compiled in. Among the drawbacks,
the removal of the *_fixed_sched_clock optimization which could
negatively impact some platforms (sa1100, tegra, versatile
and omap).
Tested on 11MPCore, OMAP4 and Tegra.
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alessandro Rubini <rubini@unipv.it>
Cc: STEricsson <STEricsson_nomadik_linux@list.st.com>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Tested-by: Jamie Iles <jamie@jamieiles.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add support for the tegra30 based cardhu development board. Cardhu is a tablet
formfactor reference design for tegra30. The patch provides a device tree for
the board, updates Makefile.boot to build the dtb, includes the platform in
Kconfig and updates board-dt.c.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Add support for tegra30 SoC. This includes a device tree compatible type for
this SoC ("nvidia,tegra30") and adds L2 cache initialization for this new SoC.
The clock framework is still missing, which prevents most drivers from working.
The basic IRQs are the same, so remove the dependency on
CONFIG_ARCH_TEGRA_2x_SOC.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Define the pinmuxing and pindrive tables for tegra30. The pinmux table defines
the available functions for each pinmux group. The pindrive table defines the
default pullup or pulldowns for each group.
Derived from code by Scott Williams (scwilliams@nvidia.com)
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Add new fields to struct tegra_pingroup_desc to support new hardware features
introduced in the tegra30 SoC. The pinmux driver won't use those fields yet,
but the tegra30 pinmux tables will already provide the necessary data.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch modifies the pinmux code to be useable for multiple tegra variants.
Some tegra20 specific constants will be replaced by variables which will be
initialized to the appropriate value at runtime.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Rename pinmux-t2.h and pinmux-t2-tables.c to the new tegra naming. This file
will be reworked somewhat in the next patch to support multiple tegra SoC
types.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Generalize L2 cache initialization and discover L2 cache associativity at
runtime.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Use PMC reset rather then CAR system reset as recommended by the hardware
team.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Tegra20 based boards will be handled by the current board-dt.c file. Tegra30
based boards will be handled by a new board-dt-tegra30.c file. Hence rename
the existing board-dt.c to board-dt-tegra20.c to reflect its use.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch splits the early init code in a common and a tegra20 specific part.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
don't export clk_measure_input_freq as its functionality is also available
using clk_get_rate().
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Rework the tegra20 clock code to support multiple tegra variants :
* remove tegra2_periph_reset_assert/tegra2_periph_reset_deassert. This
functionality should be in clock.c.
* remove tegra_sdmmc_tap_delay and export tegra2_sdmmc_tap_delay
directly. This feature is handled inside the sdmmc block from tegra30
onwards. So there is no need for support in the clock code beyond
tegra20. There are no in tree users of this function.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
* add a dependency to ARCH_TEGRA_2x_SOC in Kconfig to all tegra20 based boards
and TEGRA_PCI
* make powergating dependent on ARCH_TEGRA_2x_SOC
* remove dependency on ARCH_TEGRA_2x_SOC for clock.c
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The timer and rtc-timer clocks aren't gated by default, so there is no reason
to crash the system if the dummy enable call failed.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
entry-macro.S contains some stale code for chips before Tegra20 that
apparently didn't use an ARM GIC. All chips supported by mainline use
an ARM GIC, so rip out the stale code.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Convert tegra20 IRQ intialization to the GIC devicetree binding. Modify the
interrupt definitions in the dts files according to
Documentation/devicetree/bindings/arm/gic.txt
v3 (swarren):
* Moved of_irq_init() call into board-dt.c to avoid ifdef'ing it.
- Even with a dummy replacement if !CONFIG_OF, the reference from
tegra_dt_irq_match[] to gic_of_init() would still have to be ifdef'd
- It's plausible that tegra_dt_irq_match[] may need to contain more
entries in the future, and defining what they are seems more suitable
for board-dt.c than irq.c
v2 (swarren):
* Removed some stale GIC init code from board-dt.c
* Undid some accidental 0x -> 0x0 search/replace.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
[olof: added include of <asm/hardware/gic.h> for compile to pass]
Signed-off-by: Olof Johansson <olof@lixom.net>
PPI_NR is never used in arch/arm/mach-tegra/irq.c. Remove it.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
For some reason it started out using {} instead of (), and it's
proliferated from there. Switch back to ().
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
Certain clocks are required for core audio functionality. Set up the
appropriate parenting relationships, and enable clocks that must be
on permanently.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Fix the address of the I2S2 controller in the AUXDATA table.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This adds a dts file for paz00. As a side effect, this also enables
the embedded controller which controls the keyboard, touchpad, power,
leds, and some other functions.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
* Add device-tree file for TrimSlice
* Add that to the list of .dts files to build
* Update board-dt.c to recognize TrimSlice board name
v2: Makefile: Add board-trimslice-pinmux.c to obj-$(CONFIG_MACH_TEGRA_DT).
v3: Makefile: Use brackets not braces around var names
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Rely on platform_data being passed through auxdata for now; more elaborate
bindings for phy config and tunings to be added.
v2: moved vbus-gpio check to the helper function, added check for !of_node,
added usb2 clock to board-dt table.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
For some reason it started out using {} instead of (), and it's
proliferated from there. Switch back to ().
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
Now that MULTI_IRQ_HANDLER is selected by all the in-tree
GIC users, make it mandatory and remove the unused macros.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Convert the tegra2 platforms to be using the gic_handle_irq
function as their primary interrupt handler.
Tested on harmony.
Cc: Colin Cross <ccross@android.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Enable the headphone detection gpio on tegra platform.
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
