Currently we depend on hardcoded base addresses for the interrupt
controller. This prevents us from compiling in more than one i.MX
architecture at a time. This patch changes the base address to a
runtime calculated one.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently we depend on hardcoded base addresses for the timer.
This prevents us from compiling in more than one i.MX architecture
at a time. This patch changes the base address to a runtime
calculated one.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows us to have more mapping functions for more than one
i.MX architecture in the kernel. As this is the earliest board
specific hook we have, also use it to set the cpu type.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It is no longer present in newer cores. Unfortunately Freescale decided
to put the bit which decides between automotive clock path and consumer
clock path in the automotive clock path direction. With current code we
cannot detect the core revision, so just remove automotive path completely.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This iomux is called iomux-v3 in the tree because it is the third known
incarnation of MXC iomuxers. It is not only found on the MX35 but also
on the MX51 and probably others.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As per commit 284901a90a, use
DMA_BIT_MASK(n)
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add missing DMA controller block clocks.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for S3C6400 SDHCI channels 0 and 1, making
the GPIO code common to both S3C6400 and S3C6410.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add detection support for the S3C6400 SoC which has it's
id register in a different place to the S3C6410.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add power management support to the VIC by registering
each VIC as a system device to get suspend/resume
events going.
Since the VIC registeration is done early, we need to
record the VICs in a static array which is used to add
the system devices later once the initcalls are run. This
means there is now a configuration value for the number
of VICs in the system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the GPIO suspend/resume support inline with the gpiolib support
so that it will work with both the S3C24XX and S3C64XX series.
The s3c_gpio_chip is extended to have a pm callback and a save block
to keep the state of the GPIO over suspend, and the code from the
s3c24xx implementation is added to a new common file.
The suspend process now uses the list of registered chips to go through
saving and restoring each one as appropriate, using the pm callback to
select the appropriate routine depending on the type of control register
present.
This change also means that any additional GPIO added should not require
changes to the PM.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for saving the state of the IRQ registers over suspend.
This requires moving the S3C64XX UART registers into <plat/regs-serial.h>
and adding irq-pm.c which saves the state of all the IRQ registers.
The irq-pm.c saves all the IRQ registers, including the IRQ_EINT and
IRQ_EINT_GROUP registers as it was easier than adding three different
files. Also ensuring that all the registers are restored to the same
state as before suspend is considered to be the best thing to do.
Note, we do not suspend the VIC here, this is done by the VIC driver
itself.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add an s3c64xx_sysclass and device for items that currently
want to bind to any s3c64xx processor. The first user of this
will be parts of the s3c64xx suspend support which need to
save device state over suspend/resume.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add the initial support for the S3C64XX based systems to use
suspend-to-RAM to sleep.
Includes basic debugging for use with the SMDK6410 usign the
LEDs on the baseboard.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add a simple debug message on saving the UART state and add a per-arch
pre-restore function to be used by the s3c64xx restore code to ensure
the UARTs control registers do not go through any illegal state changes.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The USB host base address is available on both the S3C24XX and S3C64XX
ranges.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add USB OHCI host capability to the SMDK6410 for either USB OtG or
a single/double USB host port.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add common definition for USB OHCI platform device, add a Kconfig
to selectively compile it and add update all the users.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The structure 'arch_mmu' accommodates the difference between omap1 and
omap2/3.
This patch provides omap2/3 specific functions
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
The i.MX31 ARM11 core is not a v6K core. Disable this option as it
is incompatible with non v6K cores.
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Before this patch I got the following line in my dmesg:
[ 0.000000] BUG: mapping for 0xd4000000 at 0xeb000000 overlaps vmalloc space
VMALLOC_END is 0xf4000000 and there are the following other mappings
defined for mx27ads:
(0xa0500000,+0x00001000) maps to 0xffff0000
(0x10000000,+0x00100000) maps to 0xf4000000
(0x80000000,+0x00100000) maps to 0xf4100000
(0xd8000000,+0x00100000) maps to 0xf4200000
So map PBC to 0xf4300000.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On i.MX31 I sometimes get spurious interrupts. There is no need
to crash the whole system when this happens. Instead, silently
ignore it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We want to have a mx31_defconfig file that builds a kernel that is able
to boot on all support mx31 systems and thus also can be better tested
by automatic build scripts. For these reasons, this config file is not
needed anymore.
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
All i.MX platforms support <linux/clk.h> calls and should select HAVE_CLK.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On MX2 platforms imx_dma_request() calls request_irq() which may sleep
with interrupts disabled.
Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The sequence
imx_dma_request()
imx_dma_enable()
imx_dma_free()
left the dma channel in_use mode and did not release the timer.
Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
