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- Add new SoC i.MX7D support, which integrates two Cortex-A7 and one
Cortex-M4 cores.
- Support suspend from IRAM on i.MX53, so that DDR pins can be set to
high impedance for more power saving during suspend.
- Move i.MX clock drivers from arch/arm/mach-imx to drivers/clk/imx.
- Move i.MX GPT timer driver from arch/arm/mach-imx into
drivers/clocksource.
- A couple of clock driver update for VF610 and i.MX6Q.
- A few random code correction and improvement.
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Merge tag 'imx-soc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
The i.MX SoC updates for 4.2:
- Add new SoC i.MX7D support, which integrates two Cortex-A7 and one
Cortex-M4 cores.
- Support suspend from IRAM on i.MX53, so that DDR pins can be set to
high impedance for more power saving during suspend.
- Move i.MX clock drivers from arch/arm/mach-imx to drivers/clk/imx.
- Move i.MX GPT timer driver from arch/arm/mach-imx into
drivers/clocksource.
- A couple of clock driver update for VF610 and i.MX6Q.
- A few random code correction and improvement.
* tag 'imx-soc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (44 commits)
ARM: imx: imx7d requires anatop
clocksource: timer-imx-gpt: remove include of <asm/mach/time.h>
ARM: imx: move timer driver into drivers/clocksource
ARM: imx: remove platform headers from timer driver
ARM: imx: provide gpt device specific irq functions
ARM: imx: get rid of variable timer_base
ARM: imx: define gpt register offset per device type
ARM: imx: move clock event variables into imx_timer
ARM: imx: set up .set_next_event hook via imx_gpt_data
ARM: imx: setup tctl register in device specific function
ARM: imx: initialize gpt device type for DT boot
ARM: imx: define an enum for gpt timer device type
ARM: imx: move timer resources into a structure
ARM: imx: use relaxed IO accessor in timer driver
ARM: imx: make imx51/3 suspend optional
ARM: clk-imx6q: refine sata's parent
ARM: imx: clk-v610: Add clock for I2C2 and I2C3
ARM: mach-imx: iomux-imx31: Use DECLARE_BITMAP
ARM: imx: add imx7d clk tree support
ARM: clk: imx: update pllv3 to support imx7
...
Conflicts:
arch/arm/mach-imx/Kconfig
* socfpga/soc:
ARM: socfpga: support suspend to ram
ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
Add code that requests that the sdr controller go into
self-refresh mode. This code is run from ocram.
Suspend-to-RAM and EDAC support are mutually exclusive on
SOCFPGA. If the EDAC is enabled, it will prevent the
platform from going into suspend.
Example of how to request to suspend to ram:
$ echo enabled > \
/sys/devices/soc/ffc02000.serial0/tty/ttyS0/power/wakeup
$ echo -n mem > /sys/power/state
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Add boot_secondary implementation for the Arria10 platform. Bringing up
the secondary core on the Arria 10 platform is pretty similar to the
Cyclone/Arria 5 platform, with the exception of the following differences:
- Register offset to bringup CPU1 out of reset is different.
- The cpu1-start-addr for Arria10 contains an additional nibble.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Convert cyclone5/arria5 to use CPU_METHOD_OF_DECLARE for smp operations.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Like i.MX6, the i.MX7 code calls into the anatop driver, which fails
if that is disabled:
arch/arm/mach-imx/built-in.o: In function `imx7d_init_machine':
arch/arm/mach-imx/mach-imx7d.c:24: undefined reference to `imx_anatop_init'
arch/arm/mach-imx/built-in.o: In function `imx7d_init_irq':
arch/arm/mach-imx/mach-imx7d.c:29: undefined reference to `imx_init_revision_from_anatop'
This patch ensures that for an imx7-only build, we still get anatop
built-in, matching what we do for imx6. We also need to select
HAVE_IMX_MMDC, as that is needed by the anatop code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
After the cleanup on imx timer driver, now it's ready to be moved into
drivers/clocksource/. Let's do it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
It splits irq enable/disable/acknowledge operations into device specific
functions as the hooks in imx_gpt_data, so that we can save the use of
timer_is_xxx() and cpu_is_xxx() checking in these irq functions.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
We now have pointer to imx_timer structure available where timer base
address is needed, so we can just kill global timer_base by using
imxtm->base instead.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
It defines offset of gpt registers TSTAT, TCN and TCMP per device
type in imx_gpt_data, so that these registers can be accessed in an
way without timer_is_v2() checking.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Since we now have imx_timer structure, it makes more sense to move those
clock event related variables into the structure, so that we can save
some global variables.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
It creates a gpt device speicific data structure and adds function hook
gpt_setup_tctl in there to set up gpt TCTL register.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Use different initialization function in CLOCKSOURCE_OF_DECLARE() to
initialize gpt device type for DT boot.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Define an enum for gpt timer device type in include/soc/imx/timer.h to
tell the gpt block differences among SoCs. Update non-DT users (clock
drivers) to pass the device type.
As we now have include/soc/imx/timer.h, the declaration of
mxc_timer_init() is moved into there as the best fit.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Instead of passing around as individual argument, let's move timer
resources like irq and clocks together with base address into a data
structure, and pass pointer of the structure as argument to simplify
the function call interface.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Replace the __raw_readl/__raw_writel with readl_relaxed/writel_relaxed
which is endian-safe, as a step of moving the driver code into folder
drivers/clocksource.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
A recent change to the imx53 power management caused a build
regression when CONFIG_SOC_IMX53 is disabled:
mach-imx/built-in.o:(.init.rodata+0x60): undefined reference to `imx53_suspend'
mach-imx/built-in.o:(.init.rodata+0x64): undefined reference to `imx53_suspend_sz'
This avoids the problem by compiling the code in question
conditionally on the presence of CONFIG_SOC_IMX53. For
consistency, I'm also changing the same thing for
CONFIG_SOC_IMX51.
An additional benefit of this approach is reduced code size
for kernels that only include support for one of the two
SoCs.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 1579c7b9fe01 ("ARM: imx53: Set DDR pins to high impedance when in suspend to RAM.")
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Use the generic mechanism to declare a bitmap instead of unsigned long.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
In order to save power the DDR pins should be put into high
impedance when in suspend to RAM.
This requires manually requesting self refresh (rather than using the
automatic mode implemented by the CCM / ESDCTL), followed by
reconfiguring the IOMUXC.
Of course the code to do this cannot itself run from DDR so the
code is copied to and executed from internal memory.
In my tests using a custom i.MX53 board with LPDDR2 RAM
this reduced the suspend power consumption from 200mW to 60mW.
Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Add low level uart debug support for imx7d
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Bai Ping <b51503@freescale.com>
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Include the "common.h" header file to fix the following sparse warning:
arch/arm/mach-imx/mmdc.c:66:5: warning: symbol 'imx_mmdc_get_ddr_type' was not declared. Should it be static?
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The comments were corrected as the following to reflect
the real situation of Freescale MXC timer IP block.
There are totally 4 version of the timer on Freescale i.MX SoCs.
Signed-off-by: Shenwei Wang <shenwei.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Removed the duplicated function declaration of mxc_timer_init
which was already declared in drivers/clk/imx/clk.h.
Signed-off-by: Shenwei Wang <shenwei.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Commit 4631960d26da ("ARM: imx6: set initial power mode in pm function")
moves imx6_set_lpm() from clock init function into
imx6_pm_common_init(). This causes a hang when cpuidle support is
enabled. The reason for that is ARM core clock is shut down
unexpectedly by WAIT mode. It happens with the following call stack:
cpuidle_register_governor()
cpuidle_switch_governor()
cpuidle_uninstall_idle_handler()
synchronize_sched()
wait_rcu_gp()
wait_for_completion()
When wait_for_completion() is called as above, all cores are idle/WFI.
Hence, the reset value of CCM_CLPCR_LPM - WAIT mode, will trigger a
hardware shutdown of the ARM core clock.
To fix the regression, we need to ensure that CCM_CLPCR_LPM is
initialized into RUN mode earlier than cpuidle governor registration,
which is a postcore_initcall. This patch creates function
imx6_pm_ccm_init() to map CCM block and initialize CCM_CLPCR_LPM into
RUN mode, and have the function called from machine .init_irq hook,
which should be early enough.
Reported-by: Kevin Hilman <khilman@kernel.org>
Fixes: 8fb76a07e2cb ("ARM: imx6: set initial power mode in pm function")
Tested-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
After the cleanup on clock drivers, they are now ready to be moved into
drivers/clk. Let's move them into drivers/clk/imx folder.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
With the cleanup done before, we now can simply define base address and
irq as needed in clock driver, to get those platform header inclusions
removed.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Instead of calling cpu_is_xxx() in clk-pllv1 driver, let's add clk-pllv1
type support to handle the difference/quirk in particular SoC designs.
Doing so will help get clk-pllv1 driver ready for being moved out of
arch/arm/mach-imx folder.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
As we're about to move clock drivers out of arch/arm/mach-imx,
cpu_is_xxx() shouldn't be used any more. Let's avoid the call by
looking at the device tree machine compatible string to determine
which SoC the clock driver is running on.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
We are about to move imx6 clock driver into drivers/clk, so let's get
imx6 pm code map CCM block on its own rather than relying on clock
driver to do the mapping.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Rather than setting initial low-power mode in every single i.MX6 clock
initialization function, we should really do that in pm code. Let's
move imx6q_set_lpm(WAIT_CLOCKED) call into imx6_pm_common_init().
While at it, let's rename the function to imx6_set_lpm() since it's
actually common for all i.MX6 SoCs.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
We are about to move imx5 clock driver into drivers/clk, so let's get
imx5 pm code map CCM block on its own rather than relying on clock
driver to do the mapping.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The revision definitions and declarations are widely used by clock
drivers. As a step of moving clock drivers out of arch/arm/mach-imx,
let's create header include/soc/imx/revision.h to accommodate them.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Pass physical address of timer block to mxc_timer_init() call, which in
turn does dynamic mapping within the function. Thus, we can avoid using
static mapping in clock drivers.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
STM32 clocksource driver needs to be selected if ARCH_STM32.
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Merge "changes for Broadcom SoCs":
- Dan fixes an error path in the BCM63xx SMP code
- Ray adds the relevant Kconfig selects to enable the Broadcom NAND driver on Cygnus
- Kevin provides a change to the Broadcom GISB arbiter driver to make it work with
MIPS-based big-endian STB SoCs (this was a long-standing change that had dependencies on
code in drivers/of/*)
- Gregory enables the use of GPIOLIB for brcmstb SoCs and bumps the number of GPIOs for
these platforms
* tag 'arm-soc/for-4.2/soc-part2' of http://github.com/broadcom/stblinux:
ARM: brcmstb: Add default gpio number
ARM: brcmstb: Select ARCH_WANT_OPTIONAL_GPIOLIB
bus: brcmstb_gisb: Honor the "big-endian" and "native-endian" DT properties
ARM: BCM: Enable NAND support for iProc SoCs
ARM: BCM63xx: fix an error path in bcm63xx_pmb_power_on_cpu()
Out of the brcmstb SoCs that I know, BCM3390 has the largest numbers
of GPIOs, with its
- 320 "peripheral" GPIOs
- 5*32 = 160 UPG GPIOs (counting unused lines, which do get counted)
- 2*32 = 64 UPG AON GPIOs (counting unused lines)
Total: 544
I suspect that the upper limit will only need to be higher in the
future, so set it to 1024.
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Select ARCH_WANT_OPTIONAL_GPIOLIB from BRCMSTB to allow GPIOLIB and
GPIO_BRCMSTB to be enabled.
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
* Only select sound drivers that build
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Merge tag 'renesas-soc-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
Merge "Renesas ARM Based SoC Updates for v4.2" from Simon Horman:
* Only select sound drivers that build
* tag 'renesas-soc-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: only select sound drivers that build
We need to unlock and unmap some resourses before returning.
Fixes: 3f2a43c98d72 ('ARM: BCM63xx: Add secondary CPU PMB initialization sequence')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
A couple of codec drivers are selected by shmobile platform code,
but depend on I2C, which results in a build error:
sound/soc/codecs/ak4642.c:638:1: warning: data definition has no type or storage class
module_i2c_driver(ak4642_i2c_driver);
^
sound/soc/codecs/ak4642.c:638:1: error: type defaults to 'int' in declaration of 'module_i2c_driver' [-Werror=implicit-int]
sound/soc/codecs/ak4642.c:638:1: warning: parameter names (without types) in function declaration
sound/soc/codecs/ak4642.c:627:26: warning: 'ak4642_i2c_driver' defined but not used [-Wunused-variable]
This ensures that we do not enable the respective drivers when I2C
is disabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Use the new config symbol ARM_SINGLE_ARMV7M which groups config
symbols used by modern ARMv7-M platforms. This allows supporting
multiple ARMv7-M platforms in one kernel image. However, a common
kernel image requires the combined platforms to share the same
main memory layout to be bootable.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The newly added zx platform causes a build error when
CONFIG_THUMB2_KERNEL is enabled:
arch/arm/mach-zx/headsmp.S:16: Error: invalid immediate for address calculation (value = 0x00000004)
I'm assuming that the ROM code that is calling these entry
points runs in ARM mode, so there would be another problem
in the same file, and we can solve both problems at once
by adding a '.arm' statement that will make zx_resume_jump
and zx_secondary_startup both be built as ARM code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jun Nie <jun.nie@linaro.org>
Tested-by: Jun Nie <jun.nie@linaro.org>
to making omap1 support multiarch. After this series we still need to
make omap1 use the common clock framework and fix up the drivers to not
rely on includes from mach and plat directories.
Note that this branch depends on a GPIO driver fix in v4.1-rc3
d2d05c65c40e ("gpio: omap: Fix regression for MPUIO interrupts").
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Merge tag 'omap-for-v4.2/omap1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
Merge fixed up omap1 sparse irq support for v4.2 from Tony Lindgren:
Add support for CONFIG_SPARSE_IRQ for omap1. This takes us a bit closer
to making omap1 support multiarch. After this series we still need to
make omap1 use the common clock framework and fix up the drivers to not
rely on includes from mach and plat directories.
Note that this branch depends on a GPIO driver fix in v4.1-rc3
d2d05c65c40e ("gpio: omap: Fix regression for MPUIO interrupts").
* tag 'omap-for-v4.2/omap1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP1: Fix section mismatch warnings for omap_cfg_reg
ARM: OMAP1: Fix randconfig builds if ARCH_OMAP15XX not selected
ARM: OMAP1: Change interrupt numbering for sparse IRQ
ARM: omap1: Switch to use MULTI_IRQ
ARM: OMAP1: Switch to use generic irqchip in preparation for sparse IRQ
ARM: OMAP1: Move UART defines to prepare for sparse IRQ
Merge mach-bcm changes from Florian Fainelli:
This pull request contains the following changes:
- Rafal adds an additional fault code to be ignored by the kernel on BCM5301X SoC
- BCM63138 SMP support which:
* common code to control the PMB bus, to be shared with a reset
controller driver in drivers/reset
* secondary CPU initialization sequence using PMB helpers
* small changes suggested by Russell King to allow platforms to disable VFP
* tag 'arm-soc/for-4.2/soc-take2' of http://github.com/broadcom/stblinux:
ARM: BCM63xx: Add SMP support for BCM63138
ARM: vfp: Add vfp_disable for problematic platforms
ARM: vfp: Add include guards
ARM: BCM63xx: Add secondary CPU PMB initialization sequence
ARM: BCM63xx: Add Broadcom BCM63xx PMB controller helpers
ARM: BCM5301X: Ignore another (BCM4709 specific) fault code
