Commit Graph

98039 Commits

Author SHA1 Message Date
Alexander Shiyan
e8e3faa039 ARM: i.MX27 clk: Introduce DT include for clock provider
Use clock defines in order to make devicetrees more human readable.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:38 +08:00
Alexander Shiyan
3543fc54bc ARM: i.MX: Remove Freescale Logic Product Development i.MX27 Lite-Kit board support
The board has no insufficient support to be fully functional and seems
has no users. This patch removes support for this board.
However, the support may be added in the future by using the devicetree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:37 +08:00
Alexander Shiyan
7a1c0259ee ARM: i.MX: Remove excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27
This patch removes excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27.
Instead we use SOC_IMX*.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:37 +08:00
Alexander Shiyan
35e3bc535d ARM: i.MX: Remove i.MX1 camera support
i.MX1 camera driver has been removed by the commit 90b055898e.
This patch removes remaining support files for this camera.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:37 +08:00
Fabian Frederick
d3a2244230 ARM: imx: use PTR_ERR_OR_ZERO
replace IS_ERR/PTR_ERR

Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:36 +08:00
Arnd Bergmann
a82eb09f4a ARM: imx: build cpu_is_imx6sl function conditionally
imx6q_pm_enter calls imx6sl_set_wait_clk when run on an imx6sl
based machine. However if support for imx6sl is not enabled
at compile time, this prevents us from building the kernel and
we get this link error instead:

arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':
:(.text+0x4b84): undefined reference to `imx6sl_set_wait_clk'

This makes the cpu_is_imx6sl function conditionally return false
if imx6sl is disabled at compile-time, which matches what the
older cpu_is_mx* macros did. We have similar inline functions for
the other imx6 variants, but so far I have not run into a case
where the extra #ifdef is necessary.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:36 +08:00
Arnd Bergmann
918fb15d70 ARM: imx: imx6sx uses imx6q cpuidle code
Building a kernel for imx6sx but without imx6q support results in
this link error because of the missing cpuidle driver:

arch/arm/mach-imx/built-in.o: In function `imx6sx_init_late'::(.init.text+0xc228):
 undefined reference to `imx6q_cpuidle_init'

This patch adds a Makefile entry so we always build support for
the imx6q_cpuidle code when at least one of the 6sx or 6q variants
are enabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:35 +08:00
Shawn Guo
8629a0f43b ARM: imx: drop PL310 errata 588369 and 727915
The PL310 integrated on i.MX6 series and VF610 are revision r3p1 and
later.  Per ARM PL310 errata document, 588369 is fixed in r2p0 and
727915 is fixed in r3p1.  Neither is needed for i.MX6 or VF610.  So
let's drop them.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:35 +08:00
Stefan Agner
d398ca237d ARM: imx_v6_v7_defconfig: add FSL_EDMA and PRINTK_TIME
Add EDMA for DMA support for Vybrid SoCs. Also add printk time.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:35 +08:00
Fabio Estevam
42222ee66a ARM: imx: clk-imx6sx: register SSI/SSI_IPG as shared gate clocks
SSI and SSI_IPG are clocks controlled by the same clock gating field, so
register them with imx_clk_gate2_shared.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:34 +08:00
Silvio Fricke
8ef567905d ARM: imx_v6_v7_defconfig: Enable flexcan driver for can support
Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:34 +08:00
Silvio Fricke
1e0fcfc780 ARM: imx_v6_v7_defconfig: Enable STMPE gpio support
Enable STMPE gpio support as this is used on MX6 Data Modul edm-qmx6
board.

Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:34 +08:00
Shawn Guo
8756dd924d ARM: imx: mark .dt_compat as const
Otherwise GCC will mark the .init.rodata section R/W, which causes
a compile error once we add other real R/O data.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:33 +08:00
Fabio Estevam
a49fb63c87 ARM: mx6: Only check for 1.2GHz for mx6quad
It is only the mx6quad variant that can run up to 1.2GHz, so add the check
accordingly.

This avoids getting the following warning on a mx6solo:

failed to disable 1.2 GHz OPP

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:33 +08:00
Fabio Estevam
01570305de ARM: imx_v4_v5_defconfig: Add USB device options
Allow USB device to work by default.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:33 +08:00
Denis Carikli
e9db15e322 ARM: i.MX25 clk: Use of_clk_init() for DT case
Replace .init_time() hook with of_clk_init() for DT targets.

Based on:
  d4347ee ARM: i.MX27 clk: Use of_clk_init() for DT case

Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:32 +08:00
Denis Carikli
988eb354d4 ARM i.MX25 clk: Fix gpt timer clock.
The gpt0 timer clock has been wrong since:
  6bbaec5 ARM i.MX25: implement clocks using common clock framework

Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:32 +08:00
Alexander Shiyan
35bcaf00de ARM: i.MX21 clk: Add devicetree support
This patch adds devicetree support CCM module for i.MX21 CPUs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:32 +08:00
Alexander Shiyan
548694b990 ARM: i.MX21 clk: Cleanup driver
This is a cleanup for i.MX21 clk driver. This change includes:
- Reduce license text.
- Remove unused definitions.
- Remove unused #include and sort the rest.
- Remove useless comment.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:32 +08:00
Alexander Shiyan
4fed4363fe ARM: i.MX21 clk: Remove clk_register_clkdev() for unused clocks
This patch removes clk_register_clkdev() for the clocks that do not
have any users for boards and drivers.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:31 +08:00
Alexander Shiyan
6525169028 ARM: i.MX21 clk: Clock initialization rework
This patch perform rework i.MX21 clock initialization. This includes
adding missing clocks and sort clocks by register address.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:31 +08:00
Fabio Estevam
50b0214982 ARM: clk-imx51-imx53: Remove clk_register_clkdev()
mx51 and mx53 are device tree only platforms, so we no longer need all these
calls to clk_register_clkdev().

Only keep cpu0 and gpc_dvfs clk_register_clkdev() calls.

Tested on imx51-babbage and imx53-qsb boards.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:31 +08:00
Anson Huang
80c0ecdce8 ARM: imx: add standby mode support for suspend
Add standby mode support for suspend, to enter standby mode:

echo standby > /sys/power/state;

Use UART or RTC alarm to wake up system, when system enters
standby mode, SOC will enter STOP mode with ARM core kept
power on and 24M XTAL on.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:30 +08:00
Anson Huang
dfea953ae2 ARM: imx: mem bit must be cleared before entering DSM mode
According to hardware design, mem bit must be clear before
entering DSM mode, as ARM core will be power gated in DSM mode.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:30 +08:00
Shawn Guo
d2d2e54d66 ARM: imx6qdl: switch to use macro for clock ID
Instead of using enum for clock ID, let's switch imx6qdl clock driver to
use macro.  In this case, device tree can reuse these macros to improve
readability.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:23 +08:00
Anson Huang
a25d67a437 ARM: imx: add cpuidle support for i.mx6sx
Add cpuidle support for i.MX6SX, derive from i.MX6Q's
cpuidle, two levels supported:

1. WFI;
2. WAIT mode.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:14 +08:00
Anson Huang
ff843d621b ARM: imx: add suspend support for i.mx6sx
Add suspend support for i.MX6SX.

To enter suspend, echo mem > /sys/power/state.
To exit suspend, using RTC alarm or enable debug UART wakeup.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:14 +08:00
Alexander Shiyan
fc314334e7 ARM: i.MX: Remove Freescale i.MX27 IP Camera board support
The board has no insufficient support to be fully functional and seems
has no users. This patch removes support for this board. However, the
support may be added in the future by using the devicetree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:14 +08:00
Alexander Shiyan
5a6e1502eb ARM: i.MX system: Add a reset fallback if base address of watchdog is not set
This patch adds a reset fallback if base address of watchdog is not set.
This is intended for a targets not compatible with imx-21 watchdog,
i.MX1 for example.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:13 +08:00
Alexander Shiyan
ce8ad88387 ARM: i.MX system: Simplify handling watchdog clock
This patch simplifies handling watchdog clock a bit.
As an additional change, now we properly check WDT clock in a reset
function.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:13 +08:00
Fabio Estevam
a74f30582d ARM: imx_v6_v7_defconfig: Select CONFIG_SOC_IMX6SX
Let mx6sx be built by default.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:13 +08:00
Alexander Shiyan
229be9c141 ARM: i.MX clk: Move clock check function in common location
This patch moves clock check function in common i.MX location
and switch i.MX clk drivers to use this new function.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:12 +08:00
Alexander Shiyan
c349adde00 ARM: i.MX27 clk: Use of_clk_init() for DT case
Replace .init_time() hook with of_clk_init() for DT targets.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:12 +08:00
Alexander Shiyan
bb9c3398ef ARM: i.MX27 clk: Separate DT and non-DT init procedure
This patch separates DT and non-DT clock initialization procedure,
so we can avoid a lot of unneeded clk_register_clkdev() for DT case.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:11 +08:00
Alexander Shiyan
d7f9891500 ARM: i.MX: Remove excess variable
Base address for driver is global, there are no need to use
intermediate variable for it.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:11 +08:00
Alexander Shiyan
f4696752b1 ARM: i.MX: Use of_clk_get_by_name() for timer clocks for DT case.
Use of_clk_get_by_name() for timer clocks for DT case.
This patch eliminates a lot of unneeded clk_register_clkdev()
calls for GPT.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:11 +08:00
Fabio Estevam
186d28c1e0 ARM: imx: defconfig: Select CONFIG_FHANDLE
CONFIG_FHANDLE=y is needed when running systemd with version >=210, so that it
can spawn a serial tty via getty.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:10 +08:00
Shawn Guo
48b5393bd5 ARM: imx5: remove mx51.h and mx53.h
Now all the macros in mx51.h and mx53.h are used nowhere, so remove
them.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:10 +08:00
Shawn Guo
364b28a574 ARM: imx5: clean function declarations in mx51.h
The mx51_display_revision() is a dead declaration.  Remove it.  Also,
move mx51_revision() into common.h.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:10 +08:00
Shawn Guo
c745cae702 ARM: imx5: remove file mm-imx5.c
The only code left in mm-imx5.c is to create static mapping.  While all
IMX platform code are moved to use dynamic mapping, the file can just be
removed now.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:09 +08:00
Shawn Guo
ff4ab2311a ARM: imx5: move init hooks into mach-imx5x.c
These imx5 init_early[late] hooks are called only from mach-imx5x.c.
Let's move them into mach-imx5x.c.

While at it, replace the static mapping in imx51_ipu_mipi_setup() with
dynamic mapping.  Also this function and imx_src_init() do not
necessarily to be called at .init_early hook, so move them into
.init_machine.

The mxc_iomux_v3_init() is dropped from imx51_init_early() in the
moving, since it's only needed by non-DT boot.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:09 +08:00
Shawn Guo
36b66c3fc2 ARM: imx5: use dynamic mapping for Cortex and GPC block
The imx5 pm code uses static mapping to access Cortex and GPC registers.
The patch create struct imx5_pm_data to encode physical address of
Cortex and GPC block, and create dynamic mapping for them at run-time.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:09 +08:00
Shawn Guo
4ef5e38701 ARM: imx5: reuse clock CCM mapping in pm code
The imx5 pm code needs to access CCM registers.  Let's remove the use
of CCM static mapping in pm code by reusing the dynamic mapping created
in clock code.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:08 +08:00
Shawn Guo
20484c13ca ARM: imx5: use dynamic mapping for DPLL block
Replace the static mapping of DPLL block with dynamic mapping by
calling ioremap().  Ideally, this should be done by calling of_iomap(),
so that the physical address of DPLL can also be retrieved from device
tree.  But unfortunately, DPLL blocks are not defined in DT in the first
place.  So to maintain the compatibility of existing DTB, we use
ioremap() with physical address defines in the code.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:08 +08:00
Shawn Guo
18c1d98952 ARM: imx5: use dynamic mapping for CCM block
Replace the static mapping of CCM block with dynamic mapping and
retrieve CCM base address from device tree.  Though it's not nice to
encode the variable ccm_base in macros, it helps to avoid a massive
churn on the code.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:08 +08:00
Shawn Guo
e7d5eb3c45 ARM: imx5: remove header crm-regs-imx5.h
Most of the macros in crm-regs-imx5.h are used nowhere.  Let's move the
needed ones into the C files, and remove the header.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:07 +08:00
Shawn Guo
ee18a7154e ARM: imx5: retrieve iim base from device tree
Instead of using static define and mapping, the patch changes imx5 code
that reads chip revision from IIM to retrieve base address from device
tree and use dynamic mapping.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:07 +08:00
Shawn Guo
1f84e906f8 ARM: imx5: call mxc_timer_init_dt() on imx51
Since i.MX51 supports DT only, it's more appropriate to call
mxc_timer_init_dt() than mxc_timer_init() to initialize timer.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:07 +08:00
Shawn Guo
c23f82a70c ARM: imx5: remove function imx51_soc_init()
The function imx51_soc_init() was used by non-DT boot only.  Since
i.MX51 supports DT only, the function can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:06 +08:00
Shawn Guo
fffa051281 ARM: imx5: tzic_init_irq() can directly be .init_irq hook
After i.MX51 supports DT only, tzic_init_irq() can figure out the
tzic_base on its own.  Thus, it can directly be .init_irq hook, and
mx51[53]_init_irq() can be saved.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:06 +08:00