Rename mach-imx/include/mach/common.h to mach-imx/common.h and update
all users to include common.h rather than mach/common.h.
It also removes an unneeded inclusion to common.h in
mach-imx/devices/devices.c.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
It's really unnecessary to have plat-mxc, and let's merge it into
mach-imx. It's pretty much just a bunch of file renaming and
Kconfig/Makefile merge.
To make the change less invasive, we keep using Kconfig symbol
CONFIG_ARCH_MXC for mach-imx sub-architecture.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Convert the imx6q platform to use struct smp_operations to provide
its SMP and CPU hotplug operations.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Now, imx51 device tree kernel calls pinctrl to set up pins. The
function used to hook up non-DT pin setup is not needed for DT boot
any more. Remove it from DT image.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Now imx53 is a device tree only platform, so the files and functions
used only by non-DT kernel can be removed.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Now, imx53 device tree kernel calls pinctrl to set up pins. The
functions used to hook up non-DT pin setup is not needed for DT boot
any more. Remove them from DT image.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This patch adds basic devicetree support for i.MX31 based SoCs.
Only the UART and interrupts bindings are added.
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add various functionality needed to enable a imx53 low power idle
state. This includes adding the imx53 gpc_dvfs clock and making a
common imx5_late_init function and initializing all imx53
MACHINE_STATE late_init calls to imx5_late_init.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The imx5 idle code that existed in mm-imx5.c is moved to pm-imx5.c.
The imx5_pm_init call is now exported and called during the
MACHINE_START late_init in supported imx5 platforms.
Remove various enabling/disabling of the gpc_dvfs clock and
enable it once during initialization. This is a very low
power clock that must be enabled during low power operations.
There are only two "suspend_state_t" imx5 low power modes ever
used. STOP_POWER_OFF for suspend to mem and
WAIT_UNCLOCKED_POWER_OFF for idle and suspend to standby. The
latter mode only requires 500 nanoseconds of extra hardware
exit time beyond a basic WFI operation (WAIT_CLOCKED mode) so
no other idle mode is necessary. Given this information, it
is more efficient to keep the registers in the often used
WAIT_UNCLOCKED_POWER_OFF state and only to and from the
STOP_POWER_OFF register state as needed when suspend to
mem is required.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As the timer code now does a clk_get to get its clock we don't
need the struct clk argument anymore.
This also changes the alternative EPIT timer to do a clk_get.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It was observed on a mx31pdk board that audio playback only worked when the bootloader was Redboot, and
did not work when U-boot was used.
Comparing the sources of these bootloaders showed that the AIPS registers were not setup in U-boot.
Instead of relying on the bootloader to setup the AIPS registers, do it in the kernel so that audio
playback can work independantly of the bootloader being used.
Copied the AIPS settings from Redboot to the kernel.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The LPM field of register CCMR is used to select the mode that the processor will run
when it goes to WFI.
When mx31 enters in WFI mode the LPM field is at its reset value of 0,
which configures the mx31 to enter in "wait mode".
On mx35, the LPM field on mx35 is also at 0 after reset, which corresponds
to "run mode" instead of "wait mode".
Instead of relying on the reset value of LPM to set the low power mode for
WFI, configure mx31 and mx35 to run in "wait mode"
Reported-by: Benoit Thebaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds basic devicetree support for i.MX27 based SoCs.
Only the bindings for which drivers exist are added here:
- UART
- fec
- CSPI
- I2C
- watchdog
- gpio
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The restart support was missed from the initial imx6q submission.
The mxc_restart() does not work for imx6q. Instead, this patch adds
the restart for imx6q.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Hook these platforms restart code into the new restart hook rather
than using arch_reset().
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
map_io is the only place to call iotable_init.
Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
[shawn.guo: rename imx_clock_map_io() to imx6q_clock_map_io()]
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Convert the SMP imx platforms to use the global gic_handle_irq()
function instead a private function.
Cc: Sascha Hauer <kernel@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Before introducing a global gic_handle_irq(), rename
MXC's version to mxc_gic_handle_irq(). This function will be
removed altogether in a later patch.
Cc: Sascha Hauer <kernel@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The patch removes imx_idle hook and use pm_idle instead to get imx
arch_idle prepared for the cleanup. It's suggested by Russel King
as below.
> The final removal of mach/system.h depends on getting rid of the arch_idle
> thing. While going through these headers, I was dismayed to find these:
>
> arch/arm/mach-s3c2410/include/mach/system.h:void (*s3c24xx_idle)(void);
> arch/arm/plat-mxc/include/mach/system.h:extern void (*imx_idle)(void);
>
> when we have a perfectly good pm_idle hook already in place - so there's
> no excuse for these especially when other platforms are already using
> pm_idle to hook their platform specific idle function into. This is
> something that better be gone at the next merge window!
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is a plain translation of assembly gic irq handler to C function
for CONFIG_MULTI_IRQ_HANDLER support on imx family.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
It adds device tree support for imx51 babbage board.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It adds device tree support for imx53 boards.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds an idle hook imx_idle to be called in arch_idle().
Any soc that needs a customized idle implementation other than
cpu_do_idle() can set up this hook in soc specific call.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently each i.MX processor has its own function for displaying the silicon
revision.
Introduce a generic function for this purpose, so that all i.MX processors can
reuse it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The patch removes all the uses of cpu_is_mx(). Instead, it utilizes
platform_device_id to distinguish the different gpio types, IMX1_GPIO
on i.mx1, IMX21_GPIO on i.mx21 and i.mx27, IMX31_GPIO on all other
i.mx SoCs.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The patch makes necessary changes on gpio-mxc as below to turn it
into an upstanding gpio driver.
* Add a list to save all mx2 ports references, so that
mx2_gpio_irq_handler can walk through all interrupt status
registers
* Use readl/writel to replace mach-specific accessors
__raw_readl/__raw_writel
* Change mxc_gpio_init into mxc_gpio_probe function
* Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to
be public at all, and also make some other cleanup on
plat-mxc/include/mach/gpio.h at the same time
And the patch then migrates mach-imx and mach-mx5 to the updated
driver by adding corresponding platform devices.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Since support for mxc91231 was introduced 2009 it only saw patches that
were part of (mxc or arm) global cleanups. The only supported machine
only had 4 devices (2x UART, sdhc, watchdog).
Cc: Dmitriy Taychenachev <dimichxp@gmail.com>
LAKML-Reference: 1302211482-17926-1-git-send-email-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Having the silicon revision to appear on the boot log is a useful information.
MX31, MX35 and MX51 already show the silicon revision on boot.
Add support for displaying such information for MX53 as well.
Tested on a mx53loco board, where it shows:
CPU identified as i.MX53, silicon rev 2.0
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
LAKML-Reference: 1301068367-18937-1-git-send-email-fabio.estevam@freescale.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This used to be done in .map_io which is supposed to only setup the memory
mapping.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This used to be done in .map_io which is supposed to only setup the
memory mapping.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This used to be done in .map_io which is supposed to only setup the
memory mapping.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This used to be done in .map_io which is supposed to only setup the
memory mapping.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The efikamx board is using a gpio to reset the board so add support
for it
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The Enhanced Periodic Interrupt Timer (EPIT) is found on newer
i.MX SoCs and can be used as an alternative system timer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Add basic clock support, cpu identification, I/O mapping, interrupt
controller, serial port and ethernet.
Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Freescale i.MX51 processor uses a new interrupt controller. Add
driver for TrustZone Interrupt Controller
Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
The fref is needless on mx25 since the reference clock is fixed at 24MHz.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Shawn Guo