Commit graph

427095 commits

Author SHA1 Message Date
Shawn Guo
c8ae7e9bfc ARM: imx6: drop .text.head section annotation from headsmp.S
The function v7_secondary_startup() works just fine in .text section, so
there is no need to have .text.head section annotation at all.  Drop it.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:26 +08:00
Shawn Guo
6a5637e52e ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6
Even when CONFIG_SUSPEND is enabled, it makes no sense to build
suspend-imx6.o if none of i.MX6 support is built in.  Let's build
suspend-imx6.o only when both CONFIG_SUSPEND and CONFIG_SOC_IMX6 are
enabled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:25 +08:00
Shawn Guo
9cdde7217e ARM: imx6: rename pm-imx6q.c to pm-imx6.c
The pm-imx6q.c works for all i.MX6 SoCs, so let's rename it to pm-imx6.c
and have the build controlled by option CONFIG_SOC_IMX6.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:48:24 +08:00
Shawn Guo
94f890ec91 ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuff
The i.MX6 SoCs have something in common, so let's introduce
CONFIG_SOC_IMX6 for those stuff.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:47:51 +08:00
Shawn Guo
110666dc65 ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPEND
When CONFIG_SUSPEND is not enabled, we should reasonably skip the call
to imx6q_suspend_init().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:53 +08:00
Shawn Guo
afc51f4643 ARM: imx6: call suspend_set_ops() from suspend routine
Rename function imx6q_ocram_suspend_init() to imx6q_suspend_init() and
call suspend_set_ops() from there.  Now we get a centralized function
for suspend initialization.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:52 +08:00
Shawn Guo
facadba6a1 ARM: imx6: build headsmp.o only on CONFIG_SMP
With v7_cpu_resume() being moved out of headsmp.S, all the remaining
code in the file is only needed by CONFIG_SMP build.  So we can control
the build of headsmp.o with only obj-$(CONFIG_SMP) now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:50 +08:00
Shawn Guo
c356bdb407 ARM: imx6: move v7_cpu_resume() into suspend-imx6.S
The suspend-imx6.S is introduced recently for suspend low-level assembly
code.  Since function v7_cpu_resume() is only used by suspend support,
it makes sense to move the function into suspend-imx6.S, and control the
build of the file with CONFIG_SUSPEND option.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:49 +08:00
Philipp Zabel
7ea653efa9 ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priority
This is needed so that the IPU framebuffer scanout cannot be
starved by VPU or GPU activity.
Some boards like the SabreLite and SabreSD seem to set this in
the DCD already, but the documented register reset values do not
contain the necessary settings.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:48 +08:00
Philipp Zabel
ef3adc187c ARM: imx6q: Add GPR6 and GPR7 register definitions for iomuxc gpr
Masks for IPU AXI transaction QoS settings

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:47 +08:00
Shawn Guo
8d9ee21e98 bus: imx-weim: support CS GPR configuration
For imx50-weim and imx6q-weim type of devices, there might a WEIM CS
space configuration register in General Purpose Register controller,
e.g. IOMUXC_GPR1 on i.MX6Q.

Depending on which configuration of the following 4 is chosen for given
system, IOMUXC_GPR1[11:0] should be set up as 05, 033, 0113 or 01111
correspondingly.

	CS0(128M) CS1(0M)  CS2(0M)  CS3(0M)
	CS0(64M)  CS1(64M) CS2(0M)  CS3(0M)
	CS0(64M)  CS1(32M) CS2(32M) CS3(0M)
	CS0(32M)  CS1(32M) CS2(32M) CS3(32M)

The patch creates a function for such type of devices, which scans
'ranges' property of WEIM node and build the GPR value incrementally.
Thus the WEIM CS GPR can be set up automatically at boot time.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Philippe De Muyter <phdm@macqel.be>
Tested-by: Philippe De Muyter <phdm@macqel.be>
2014-03-05 10:40:46 +08:00
Fabio Estevam
7899d7d578 ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53
SOC_IMX53 is a device-tree only platform, so we don't need
IMX_HAVE_PLATFORM_IMX2_WDT at all because this symbol only provides some code
to help register imx2-wdt platform devices.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:45 +08:00
Fabio Estevam
c0f1a4fed7 ARM: imx_v6_v7_defconfig: Select CONFIG_DEBUG_FS
CONFIG_DEBUG_FS is a very useful debug option as it allow us to access key
data such as the clock tree, for example:

mount -t debugfs debugfs /sys/kernel/debug
cat /sys/kernel/debug/clk/clk_summary

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:44 +08:00
Fabio Estevam
67f5b30875 ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC level
Booting a mx6q system built with multi_v7_defconfig leads to the following
error messages on boot:

[    0.037758] imx6q_ocram_suspend_init: ocram pool unavailable!
[    0.037768] imx6_pm_common_init: failed to initialize ocram suspend -19!

This happens because CONFIG_SRAM is not selected by default in
multi_v7_defconfig.

Fix this by selecting CONFIG_SRAM at ARCH_MXC level, so that other SoCs could
use the SRAM driver as well.

As SRAM automatically selects GENERIC_ALLOCATOR, just drop it from the Kconfig
entry.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:40:17 +08:00
Anson Huang
c962a09963 ARM: imx: add speed grading check for i.mx6 soc
The fuse map of speed_grading[1:0] defines the max speed
of ARM, see below the definition:

2b'11: 1200000000Hz;
2b'10: 996000000Hz;
2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
2b'00: 792000000Hz;

Need to remove all illegal setpoints according to fuse
map.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:22 +08:00
Anson Huang
6e6cdf6656 ARM: imx: avoid calling clk APIs in idle thread which may cause schedule
As clk_pllv3_wait_lock will call usleep_range, and the clk APIs
mutex lock may be held when CPU entering idle, so calling clk
APIs must be avoided in cpu idle thread, this is to avoid reschedule
warning in cpu idle, just access register directly to achieve that.

bad: scheduling from the idle thread!
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.0-rc1+ #657
Backtrace:
[<80012188>] (dump_backtrace) from [<8001246c>] (show_stack+0x18/0x1c)
 r6:808c0038 r5:00000000 r4:808e5a1c r3:00000000
[<80012454>] (show_stack) from [<8064b2ec>] (dump_stack+0x84/0x9c)
[<8064b268>] (dump_stack) from [<80055ee0>] (dequeue_task_idle+0x20/0x30)
 r5:808bef40 r4:bf7dff40
[<80055ec0>] (dequeue_task_idle) from [<8004f028>] (dequeue_task+0x30/0x50)
 r4:bf7dff40 r3:80055ec0
[<8004eff8>] (dequeue_task) from [<800503c0>] (deactivate_task+0x30/0x34)
 r4:bf7dff40
[<80050390>] (deactivate_task) from [<8064d8e4>] (__schedule+0x2c8/0x5c0)
[<8064d61c>] (__schedule) from [<8064dc14>] (schedule+0x38/0x88)
 r10:80912964 r9:808c1e50 r8:808c0038 r7:808cbf30 r6:80e128ec r5:60000093
 r4:80912968
[<8064dbdc>] (schedule) from [<8064dfec>] (schedule_preempt_disabled+0x10/0x14)
[<8064dfdc>] (schedule_preempt_disabled) from [<8064ebc0>] (mutex_lock_nested+0x1c0/0x3c0)
[<8064ea00>] (mutex_lock_nested) from [<804ae71c>] (clk_prepare_lock+0x44/0xe4)
 r10:806554cc r9:bf7df1bc r8:808cf4f8 r7:808cf544 r6:bf7df1b8 r5:808c0010
 r4:80e69750
[<804ae6d8>] (clk_prepare_lock) from [<804af214>] (clk_get_rate+0x14/0x64)
 r6:bf7df1b8 r5:00000002 r4:bf017000 r3:80922ad0
[<804af200>] (clk_get_rate) from [<80025d30>] (imx6sl_set_wait_clk+0x18/0x20)
 r5:00000002 r4:00000001
[<80025d18>] (imx6sl_set_wait_clk) from [<80023454>] (imx6sl_enter_wait+0x20/0x48)
[<80023434>] (imx6sl_enter_wait) from [<80477c24>] (cpuidle_enter_state+0x44/0xfc)
 r4:3c386e48 r3:80023434
[<80477be0>] (cpuidle_enter_state) from [<80477dd8>] (cpuidle_idle_call+0xfc/0x160)
 r8:808cf4f8 r7:00000001 r6:80e69534 r5:00000000 r4:bf7df1b8
[<80477cdc>] (cpuidle_idle_call) from [<8000f61c>] (arch_cpu_idle+0x10/0x50)
 r9:808c0000 r8:00000000 r7:80921a89 r6:808c8938 r5:808c899c r4:808c0000
[<8000f60c>] (arch_cpu_idle) from [<8006fa94>] (cpu_startup_entry+0x108/0x160)
[<8006f98c>] (cpu_startup_entry) from [<806452ac>] (rest_init+0xb4/0xdc)
 r7:808afae0
[<806451f8>] (rest_init) from [<8086fb58>] (start_kernel+0x328/0x38c)
 r6:ffffffff r5:808c8880 r4:808c8a30
[<8086f830>] (start_kernel) from [<80008074>] (0x80008074)

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:21 +08:00
Shawn Guo
810c0ca879 ARM: imx6q: support ptp and rmii clock from pad
On imx6qdl, the ENET RMII and PTP clock can come from either internal
ANATOP/CCM or external clock source through pad GPIO_16.  But in case
of the external clock source, bit IOMUXC_GPR1[21] needs to be cleared.

The patch adds the support for systems that use an external clock source
and distinguishes above two cases by checking if the PTP clock specified
in device tree is the one coming from the internal ANATOP/CCM.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:20 +08:00
Shawn Guo
b30c6d0180 ARM: imx6q: remove unneeded clk lookups
Since commit (a94f8ec ARM: imx6q: remove board specific CLKO setup),
a number of clk lookups in imx6q clock driver is no longer needed.
Let's remove them.

The cpu0 lookup is also removed since we are now running imx6 cpufreq
driver and looking up clocks from device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:19 +08:00
Fabio Estevam
f19e1c4a0a ARM: imx_v6_v7_defconfig: Select CONFIG_MMC_UNSAFE_RESUME
PM subsystem treats mmc card as removed during suspend.

If MMC is used to store the root file system, it is better to tell the kernel
not to treat it as a removable media, so select CONFIG_MMC_UNSAFE_RESUME for
such purpose.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:17 +08:00
Fabio Estevam
135d6908aa ARM: imx_v4_v5_defconfig: Select CONFIG_MMC_UNSAFE_RESUME
PM subsystem treats mmc card as removed during suspend.

If MMC is used to store the root file system, it is better to tell the kernel
not to treat it as a removable media, so select CONFIG_MMC_UNSAFE_RESUME for
such purpose.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:16 +08:00
Sebastian Andrzej Siewior
1119c84aa3 ARM: imx: enable delaytimer on the imx timer
The imx can support timer-based delays, so implement this.
Skips past jiffy calibration.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:15 +08:00
Anson Huang
17626b7cfc ARM: imx: add always-on clock array for i.mx6sl to maintain correct usecount
IPG, ARM and MMDC's clock should be enabled during kernel boot up,
so we need to maintain their usecount, otherwise, they may be
disabled unexpectedly if their children's clock are turned off, and
caused their parent PLLs also get disabled, which is incorrect.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:14 +08:00
Anson Huang
64b0868139 ARM: imx: add suspend in ocram support for i.mx6sl
i.MX6SL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~10mA@1.2V to ~1mA@1.2V,
measured on i.MX6SL EVK board, SH5.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:13 +08:00
Anson Huang
da9e926135 ARM: imx: add suspend in ocram support for i.mx6dl
i.MX6DL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6DL SabreSD board, R25.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:12 +08:00
Anson Huang
df595746fa ARM: imx: add suspend in ocram support for i.mx6q
When system enter suspend, we can set the DDR IO to
high-Z state to save DDR IOs' power consumption, this
operation can save many power(from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6Q SabreSD board, R25) of DDR IOs. To
achieve that, we need to copy the suspend code to ocram
and run the low level hardware related code(set DDR IOs
to high-Z state) in ocram.

If there is no ocram space available, then system will
still do suspend in external DDR, hence no DDR IOs will
be set to high-Z.

The OCRAM usage layout is as below,

ocram suspend region(4K currently):
======================== high address ======================
                              .
                              .
                              .
                              ^
                              ^
                              ^
                      imx6_suspend code
             PM_INFO structure(imx6_cpu_pm_info)
======================== low address =======================

Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:10 +08:00
Sascha Hauer
02ae8e8682 ARM i.MX: remove PWM platform support
As the i.MX pwm driver is devicetree only, remove the platform
support for this device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:09 +08:00
Liu Ying
b78f1e8074 ARM: imx: clk-vf610: Suppress duplicate const sparse warning
There should be no duplicate const specifiers for those static
constant character string arrays defined for clock mux options.
Also, the arrays are only taken as the 5th argument for the
imx_clk_mux() function, which is in the type of 'const char
**parents'.  So, let's remove the 2nd const specifier right
after 'char'.

This patch fixes these sparse warnings:
arch/arm/mach-imx/clk-vf610.c:66:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:67:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:68:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:69:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:70:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:71:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:72:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:73:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:74:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:75:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:76:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:77:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:78:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:79:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:80:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:81:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:83:25: warning: duplicate const
arch/arm/mach-imx/clk-vf610.c:84:25: warning: duplicate const

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:08 +08:00
Liu Ying
b21c22e3a9 ARM: imx: clk-imx6sl: Suppress duplicate const sparse warning
There should be no duplicate const specifiers for those static
constant character string arrays defined for clock mux options.
Also, the arrays are only taken as the 5th argument for the
imx_clk_mux() function, which is in the type of 'const char
**parents'.  So, let's remove the 2nd const specifier right
after 'char'.

This patch fixes these sparse warnings:
arch/arm/mach-imx/clk-imx6sl.c:21:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:22:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:23:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:24:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:25:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:26:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:27:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:28:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:29:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:30:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:31:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:32:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:33:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:34:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:35:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:36:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:37:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:38:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:39:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:40:25: warning: duplicate const
arch/arm/mach-imx/clk-imx6sl.c:41:25: warning: duplicate const

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:07 +08:00
John Tobias
5a1513f60f ARM: imx: add select on ARCH_MXC for cpufreq support
Move ARCH_HAS_CPUFREQ, ARCH_HAS_OPP and PM_OPP on ARCH_MXC so that
the user can enable the cpufreq support for iMX6Q and/or iMX6SL.

Signed-off-by: John Tobias <john.tobias.ph@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:06 +08:00
Denis Carikli
80130a59b2 ARM: imx_v6_v7_defconfig: Enable some drivers used on the cpuimx35.
The eukrea cpuimx35 has a pcf8563 RTC and a LCD gpio regulator.

We enable the respective drivers in order to be able to use theses
  features with this configuration.

Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:05 +08:00
Denis Carikli
c51bcd158d ARM i.MX35: build in pinctrl support.
shawn.guo: While at it, we drop 'select PINCTRL' from SOC_IMX35, since
it's been covered by ARCH_MXC.

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:04 +08:00
Denis Carikli
94645973ab ARM: imx_v6_v7_defconfig: Enable backlight gpio support.
The eukrea mbimxsd51 has a gpio backlight for its
  LCD display, so we turn that driver on.

Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:03 +08:00
Anson Huang
751f7e999a ARM: imx: add cpuidle support for i.mx6sl
Add cpuidle support for i.MX6SL, currently only support
two cpuidle levels(ARM wfi and WAIT mode), and add software
workaround for WAIT mode errata as below:

ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken
          during WAIT mode entry process could cause cache memory
          corruption.

Software workaround:
    To prevent this issue from occurring, software should ensure that
the ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before
entering WAIT mode.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:01 +08:00
Anson Huang
848db4a0a1 ARM: imx: AHB rate must be set to 132MHz on i.mx6sl
The reset value of AHB divider is 3, so current AHB rate
is 99MHz which is not correct for kernel, need to ensure
AHB rate is 132MHz in clk driver, as ipg is sourcing from
AHB, and it should be 66MHz by default.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:35:00 +08:00
Fabio Estevam
fa6be65ed4 ARM: imx: Use INT_MEM_CLK_LPM as the bit name
Bit 17 of register CCM_CGPR is called INT_MEM_CLK_LPM as per the mx6
reference manual, so use this name instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:34:59 +08:00
Fabio Estevam
c0bea59ca5 ARM: imx_v6_v7_defconfig: Select PCI support
Let PCI driver be enabled by default.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-03-05 10:34:58 +08:00
Shawn Guo
c1b2a174c3 - Remove common kconfig options required by multi-platform builds out
of individual platforms as they are redundant.
 - Make SMP, CACHE_L2X0 and GPIO config options user visible on
 multi-platform builds as most platforms enable these options and all
 platforms can run with them enabled.
 - Make multi-platform v6 default to more optimal v6k rather than v6
 - Remove the last bit of mach-virt and convert it to just a kconfig
 option.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQEcBAABAgAGBQJTBT1nAAoJEMhvYp4jgsXikI0IAIv2GmBCgbg0XhHZBSheSNOh
 Th1bv4KeEci/3uezwVTAA3AtJIvDNMAQjRYjNSyOnCCC7s5czex1w/Mk/6IzgX8C
 eCauM5kiOV3ZKPMbPI6gxg0bmFe+YzWREbm7fpAqxpc3IXwzYlShnq/kKISq25Qj
 mRZtv97AB2xqAy9zTyy18y+c+F/1mAgd+NeiDbjBimHbTK4urjiD7PpcWvmbYZld
 H9Qw4d9JwVTRpRHw9PRR9glnvFYiFpp+s9ehSjcyYi8wjZKO1+67c56fS+ScsoV7
 qM4J2qtS2kpzvyFvOI7wY6E2M5Es7zOeuJAmh0jEkbDtRa0a4YFYL0DAp5k9Xiw=
 =NEez
 -----END PGP SIGNATURE-----

Merge tag 'kconfig-cleanup-for-3.15' into imx/soc

- Remove common kconfig options required by multi-platform builds out
of individual platforms as they are redundant.
- Make SMP, CACHE_L2X0 and GPIO config options user visible on
multi-platform builds as most platforms enable these options and all
platforms can run with them enabled.
- Make multi-platform v6 default to more optimal v6k rather than v6
- Remove the last bit of mach-virt and convert it to just a kconfig
option.

Conflicts:
	arch/arm/mach-omap2/Kconfig
2014-03-05 10:31:54 +08:00
Linus Torvalds
cfbf8d4857 Linux 3.14-rc4 2014-02-23 17:40:03 -08:00
Linus Torvalds
7267342995 ARM: SoC fixes for 3.14-rc
A collection of fixes for ARM platforms. Most are fixes for DTS files,
 mostly from DT conversion on OMAP which is still finding a few issues here
 and there.
 
 There's a couple of small stale code removal patches that we usually
 queue for the next release instead, but they seemed harmless enough to
 bring in now.
 
 Also, a fix for backlight on some PXA platforms, and a cache configuration
 fix for Tegra, etc.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJTCgAlAAoJEIwa5zzehBx3J8MP/jFJWHtLHSeSXeKTLEeBV18J
 /M7OG5hKyI38mImPbdJmCHpcTfExTqWuIkvN+6e7QN5PU1V3YSy5XELPh9UIn7zU
 u+Pmt1C4cG8GFEdf03LqaDc4vdtthKUHGUBxQjrA3ZFrR8XZlzAZrnLKU/HA1VF5
 ynaj1cs4Vpf2CGXjM+2ATr5gVhjTs1yldTkG+lHL99JAlSJe7TD3mrANXBRXVVNC
 2yHGEDpDJf8kkBRQZ91xGcVVFw2YWF1avUi3QQ5WltufI+Rtdu8g7ibhakK/nimU
 AfZ3LidjjiTFIGfEi5/2FBim6Tsxpd6wLlchzA6ksPaQ6hk0EVzRPPNzlarmeRO8
 IF5zUPGPXswBeQURXe+OcZIUI4PGS02tshlIUWFPaFM3mZY2djd8Df8Rg20isjOu
 vUYGSL2UY0uLb8NS97scNS9ouGYDp8lV9pHIYlmf6f3Opv6vsw56rWggSsDQDAOk
 wbA2COTtDXxo1tEgbrmevDiaCc8uCDTHKD+uwbxOMCTwLvHHsafRp85BgcCz1z0L
 bOvTbqVhBPW6T47D1ED+ECBo12DbZwA8pth0JSRaf/Fbp6+aMFXp0/d7Hw+ggAxN
 wgEFq/A0M6v+5Y9azo+GLkgqPdH+7twH6eqD8TRgcQdnZXWIuq9UtaNw9Qx4Uusr
 fX9CS2l8ISXgopnRPZCI
 =i7LS
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A collection of fixes for ARM platforms.  Most are fixes for DTS
  files, mostly from DT conversion on OMAP which is still finding a few
  issues here and there.

  There's a couple of small stale code removal patches that we usually
  queue for the next release instead, but they seemed harmless enough to
  bring in now.

  Also, a fix for backlight on some PXA platforms, and a cache
  configuration fix for Tegra, etc"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
  MAINTAINERS: add additional ARM BCM281xx/BCM11xxx maintainer
  ARM: tegra: only run PL310 init on systems with one
  ARM: tegra: Add head numbers to display controllers
  ARM: imx6: build pm-imx6q.c independently of CONFIG_PM
  ARM: tegra: fix RTC0 alias for Cardhu
  ARM: dove: dt: revert PMU interrupt controller node
  Documentation: dt: OMAP: Update Overo/Tobi
  ARM: dts: Add support for both OMAP35xx and OMAP36xx Overo/Tobi
  ARM: dts: omap3-tobi: Use the correct vendor prefix
  ARM: dts: omap3-tobi: Fix boot with OMAP36xx-based Overo
  ARM: OMAP2+: Remove legacy macros for zoom platforms
  ARM: OMAP2+: Remove MACH_NOKIA_N800
  ARM: dts: N900: add missing compatible property
  ARM: dts: N9/N950: fix boot hang with 3.14-rc1
  ARM: OMAP1: nokia770: enable tahvo-usb
  ARM: OMAP2+: gpmc: fix: DT ONENAND child nodes not probed when MTD_ONENAND is built as module
  ARM: OMAP2+: gpmc: fix: DT NAND child nodes not probed when MTD_NAND is built as module
  ARM: dts: omap3-gta04: Fix mmc1 properties.
  ARM: dts: omap3-gta04: Fix 'aux' gpio key flags.
  ARM: OMAP2+: add missing ARCH_HAS_OPP
  ...
2014-02-23 17:38:04 -08:00
Linus Torvalds
24c8525840 regulator: Fixes for v3.14
Mostly unexciting driver fixes, plus one fix to lower the severity of
 the log message when we don't use an optional regulator - the fixes for
 ACPI system made this come up more often and it was correctly observed
 that it was causing undue concern for users.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJTCXZrAAoJELSic+t+oim9W60P/0pfS2LZfE6O0PSjMBC40QAm
 ZR2JQQNxth8sjwcdF/iy8eAotE/AosuD72l11ktdNSMtDv0EqW/VZtp+Pkb8GpNI
 Xocid5clPVg3C4o9lZCEEDsrksbHjqg318G5O5FeWthSF9hfCmVgTcnPufV8HG4A
 j6HKprscZGlNQ0ZMuOVjyQ7MrRr846CzjG8VoWULkGFAIZOQf3y3SOdZcqxn2MDI
 DWNN4lLdu01RWQ2u5Nt5tKLKKJzuHnWI7lprkfMX46PrSA5XX1EMq6o2rc/eC6wT
 M3syR0+98IAwRIA+Uy6VvwbjZLXcIxTSisjN8Pg0Vv0iV2kTNX67TKuTD0EBrrdW
 Lp0r0iI/CsI9B8/oK49Nnr9ZuMf+ECHqKpWLnocwgwB84LKCXlc3/ktLi2mlsGK8
 UwHTgWYi3NQeGPsi+yZw/mcXi6mfuhPCwnObXCmrPiBtnhLd/u4b2Lkgmte6HLJf
 YrChmWAIhcM2hqI3OqVzFw3K3pxnCgqWktp9y8PNW7b18mq9sEBQbrSKCFrFDuX8
 IkPSFkSEN4uxqJzImMzjQOEPGETzEeaz/p4uhVY6cjgqgfcvRQOvg1DoEwcMdeHE
 YTBLjkPJJOClg2cxNCfCpQImlMn9xZo4ypOk5eg6lpzoxpahAyWkbxFTj5D/Ep3W
 RPCi7VzqV/TNWWTB8c+m
 =yvBG
 -----END PGP SIGNATURE-----

Merge tag 'regulator-v3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Mostly unexciting driver fixes, plus one fix to lower the severity of
  the log message when we don't use an optional regulator - the fixes
  for ACPI system made this come up more often and it was correctly
  observed that it was causing undue concern for users"

* tag 'regulator-v3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: max14577: Fix invalid return value on DT parse success
  regulator: core: Change dummy supplies error message to a warning
  regulator: s5m8767: Add missing of_node_put
  regulator: s5m8767: Use of_get_child_by_name
  regulator: da9063: Bug fix when setting max voltage on LDOs 5-11
2014-02-23 17:37:25 -08:00
Linus Torvalds
b2880eb83d Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
 "Serialize the registration of a new sched_clock in the currently ARM
  only generic sched_clock facilty to avoid sched_clock havoc"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched_clock: Prevent callers from seeing half-updated data
2014-02-23 14:17:08 -08:00
Linus Torvalds
208937fdcf Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:

 - a bugfix which prevents a divide by 0 panic when the newly introduced
   try_msr_calibrate_tsc() fails

 - enablement of the Baytrail platform to utilize the newfangled msr
   based calibration

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: tsc: Add missing Baytrail frequency to the table
  x86, tsc: Fallback to normal calibration if fast MSR calibration fails
2014-02-23 14:15:46 -08:00
Linus Torvalds
5fe37fcf01 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "Another four fixlets to tame the ARM orion irq chip"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip: orion: Fix getting generic chip pointer.
  irqchip: orion: clear stale interrupts in irq_startup
  irqchip: orion: use handle_edge_irq on bridge irqs
  irqchip: orion: clear bridge cause register on init
2014-02-23 14:15:08 -08:00
Linus Torvalds
f9b080803e USB fixes for 3.14-rc4
Here are a number of USB fixes for reported issues for 3.14-rc4
 
 The majority of these are for USB gadget, phy, and musb driver issues.
 And there's a few new device ids thrown in for good measure.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iEYEABECAAYFAlMJLmIACgkQMUfUDdst+ylvXQCdGw8XA8m783daSRWNhjtSCZdP
 oq8An1mSq7W4Tj82EO91ulB5C9Q7+W4c
 =BixM
 -----END PGP SIGNATURE-----

Merge tag 'usb-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of USB fixes for reported issues for 3.14-rc4

  The majority of these are for USB gadget, phy, and musb driver issues.
  And there's a few new device ids thrown in for good measure"

* tag 'usb-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: chipidea: need to mask when writting endptflush and endptprime
  usb: musb: correct use of schedule_delayed_work()
  usb: phy: msm: fix compilation errors when !CONFIG_PM_SLEEP
  usb: gadget: fix NULL pointer dereference
  usb: gadget: printer: using gadget_is_otg to check otg support at runtime
  phy: let phy_provider_register be the last step in registering PHY
  phy-core: Don't allow building phy-core as a module
  phy-core: Don't propagate -ENOSUPP from phy_pm_runtime_get_sync to caller
  phy-core: phy_get: Leave error logging to the caller
  phy,phy-bcm-kona-usb2.c: Add dependency on HAS_IOMEM
  usb: musb: correct use of schedule_delayed_work()
  usb: musb: do not sleep in atomic context
  USB: serial: option: blacklist interface 4 for Cinterion PHS8 and PXS8
  USB: EHCI: add delay during suspend to prevent erroneous wakeups
  usb: gadget: bcm63xx_udc: fix build failure on DMA channel code
  usb: musb: do not sleep in atomic context
  usb: gadget: s3c2410_udc: Fix build error
  usb: musb: core: Fix remote-wakeup resume
  usb: musb: host: Fix SuperSpeed hub enumeration
  usb: musb: fix obex in g_nokia.ko causing kernel panic
2014-02-23 10:40:22 -08:00
Linus Torvalds
e0f13bd46a TTY patch revert for 3.14-rc4
Here is a single commit, a revert of a sysfs file change that ended up
 breaking a userspace tool.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iEYEABECAAYFAlMJLK0ACgkQMUfUDdst+ynREQCcCl2HBK30ux8vwP0+tLvyx3AJ
 lQYAn1COffBg1KS22gYyhm0Yez2pUgN2
 =ZmpJ
 -----END PGP SIGNATURE-----

Merge tag 'tty-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY revert from Greg KH:
 "Here is a single commit, a revert of a sysfs file change that ended up
  breaking a userspace tool"

* tag 'tty-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "tty: Set correct tty name in 'active' sysfs attribute"
2014-02-23 10:39:50 -08:00
Linus Torvalds
b9c2b05022 Staging tree fix for 3.14-rc4
Here is a single android driver fix for 3.14-rc4 that fixes a reported
 problem in the binder driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iEYEABECAAYFAlMJLckACgkQMUfUDdst+ynaDwCfVtgwCfLL//Ck5rsI+dPcNoH4
 A4IAnjukxtAABpGDXAezROVpPSvnchRZ
 =zWji
 -----END PGP SIGNATURE-----

Merge tag 'staging-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree fix from Greg KH:
 "Here is a single android driver fix for 3.14-rc4 that fixes a reported
  problem in the binder driver"

* tag 'staging-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: binder: Fix death notifications
2014-02-23 10:39:21 -08:00
Linus Torvalds
7834904362 Char/Misc fix for 3.14-rc4
Here is a single commit, to fix a reported problem in the mei driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iEYEABECAAYFAlMJLO4ACgkQMUfUDdst+ylvewCgofUZto3Z7tZbbMD/yUn87zWK
 wH8An2aPuyRWy5rLdbW3vw2gFBz9TXaJ
 =2xyg
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fix from Greg KH:
 "Here is a single commit, to fix a reported problem in the mei driver"

* tag 'char-misc-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mei: set client's read_cb to NULL when flow control fails
2014-02-23 10:38:51 -08:00
Matt Porter
a3db2bba6d MAINTAINERS: add additional ARM BCM281xx/BCM11xxx maintainer
Add myself as an additional maintainer for the Broadcom mobile
SoCs.

Signed-off-by: Matt Porter <mporter@linaro.org>
Acked-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-02-23 05:57:03 -08:00
Mark Brown
bcad2ca372 Merge remote-tracking branches 'regulator/fix/da9063', 'regulator/fix/max14577' and 'regulator/fix/s5m8767' into regulator-linus 2014-02-23 12:22:18 +09:00
Mark Brown
f29d778fa4 Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2014-02-23 12:22:18 +09:00