Since iomux code is not directly related to gpio on mx31, the calls
to gpio_request are removed from iomux.c file.
These calls have to be done in platform initialization files. The
name of the singe pin call for iomux is also changed to
mxc_iomux_alloc_pin.
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Several comments in board config files stated "mandatory for
CONFIG_LL_DEBUG" but the correct name is CONFIG_DEBUG_LL.
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As suggested by Sascha, I regroup them in a single patch so that the
other patches become more orthogonal.
changes since v1: changed I2C1 pin names
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[PATCH v6] MXC: mx21ads base support
Base machine support for the Freescale i.MX21ADS
(M9328MX21ADSE) Application Development System.
Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MXC GPIO controller does not support generation of interrupts on both
edges. Emulate this mode in software by reconfiguring the irq trigger
polarity on each interrupt. This follows an example of
drivers/mfd/asic3.c.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
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>
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>
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>
Move ifdef under function brackets. This fixes compile crach when IRQ priorities
are disabled.
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Set the correct clkdev-name for the i2c clock.
It also get's rid of the ARCH_NR_GPIOS define on the rationale
that isn't an ARCH-wide setting anyway. If a device has two
pca953x devices, the reserved number will be wrong.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
* 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux:
i2c: imx: Make disable_delay a per-device variable
i2c: xtensa s6000 i2c driver
powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
i2c: i2c-mpc: make I2C bus speed configurable
i2c: i2c-mpc: use dev based printout function
i2c: i2c-mpc: various coding style fixes
i2c: imx: Add missing request_mem_region in probe()
i2c: i2c-s3c2410: Initialise Samsung I2C controller early
i2c-s3c2410: Simplify bus frequency calculation
i2c-s3c2410: sda_delay should be in ns, not clock ticks
i2c: iMX/MXC support
Implementation of I2C Adapter/Algorithm Driver for I2C Bus integrated
in Freescale's i.MX/MXC processors.
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This patch adds arch_reset() function for all mxc platforms.
It also removes (unsused) arch/arm/mach-mx2/system.c file.
This patch has been tested on i.MX1/27/31/35
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
OMAP wishes to pass state to the boot loader upon reboot in order to
instruct it whether to wait for USB-based reflashing or not. There is
already a facility to do this via the reboot() syscall, except we ignore
the string passed to machine_restart().
This patch fixes things to pass this string to arch_reset(). This means
that we keep the reboot mode limited to telling the kernel _how_ to
perform the reboot which should be independent of what we request the
boot loader to do.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch adds basic support for Dave/DENX QongEVB-LITE i.MX31-based
board. It includes support for clocks initialization, UART1, NOR-flash,
FPGA-attached NAND flash and DNET ethernet controller (inside FPGA).
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds clock support for i.MX35 SoCs. We do not support setting
of clock rates yet, but most interesting clock rates should be reported.
I couldn't test all clock rates and the datasheet contains some obvious
bugs, so expect some bugs in this code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We had hardcoded cpu_is_ macros for mxc architectures till now. As we
want to run the same kernel on i.MX31 and i.MX35 this patch adds cpu_is_
macros which expand to 0 or 1 if only one architecture is compiled in and
only check for the cpu type if more than one architecture is compiled
in.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch moves the stuff common to i.MX31 and i.MX35 to mx3x.h and the
specifics to mx31.h/mx35.h. We can build a kernel which runs on i.MX31 and
i.MX35, so always include mx31.h and mx35.h
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This enables our mx31moboard to be used on the different baseboards that
we are developping according to the application needs. There are not
many differences between the boards for now, but when other peripherals
are available for mx31 the differences are going to grow.
v2: takes Sascha's comments into account
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This new implemenatation avoids that two physical pins are claimed by
the same driver (also with the the gpr hardware modes).
The gpio kernel lib is also called when a capable gpio pin is assigned
its gpio function.
The mxc_iomux_mode function is still here for backward compatibility but
should not be used anymore.
V2:
In the precendent revision, the iomux code was claiming a pin when its
hardware mode was changed. This was uncorrect: when the hardware mode is
changed, the pin must still be claimed through the iomux.
In order to have a pin working in mode hw2, we must fist issue the
mxc_iomux_set_gpr call and then the corresponding mxc_iomux_mode calls
with the FUNC mode (usually done with mxc_iomux_setup_multiple_pins).
The reverse calls must be done to fee the pins.
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Several of the macros in mx31ads.h depend on mx31.h which is no longer
included in quite so many standard headers as it once was. Include it
directly so we can build.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch mimicks what Martin wrote on the mailing list:
* move arch/arm/mach-imx/include/mach/imxfb.h into
arch/arm/mach-mxc/include/mach/imxfb.h
* changes Kconfig so that CONFIG_FB_IMX is selectable
* adds a platform device (copied from some pengutronix
patches)
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on code from "Martin Fuzzey" <mfuzzey@gmail.com>
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* define new CONFIG_ARCH_MX21 (this one is currently mutually exclusive to
CONFIG_ARCH_MX27, but this might change)
* splits one header file. Memory definitions, interrupt sources,
DMA channels are split into common part, i.MX27 specific and i.MX21
specific.
* guard access to UART5/UART6, which don't exist on i.MX21
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Here are some of the warnings that get fixed by this:
> 200 times: warning: cast adds address space to expression (<asn:2>)
twelve times: warning: symbol 'xxx' was not declared. Should it be static
two times: warning: symbol 'clock' shadows an earlier one
five times: warning: incorrect type in initializer (different address spaces)
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch only adds general clkdev support without actually switching
any MXC architecture to clkdev.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- rename mxc_clocks_init to architecture specific versions. This
allows us to have more than one architecture compiled in.
- call mxc_timer_init from clock initialisation instead from board
code
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We had 3 versions of this function in clock support for MX1/2/3
Use a single one instead. I picked the one from the MX3 as it seems
to calculate more accurate as the other ones. Also, on MX27 and MX31 mfn
can be negative, this hasn't been handled correctly on MX27 since now.
This patch has been tested on MX27 and MX31 and produces the same clock
frequencies for me.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* adds Kconfig variables
* specifies different physical address for i.MX21 because of the
different memory layouts
* disables support for UART5/UART6 in the i.MX serial driver
(the i.MX21 doesn't have those modules)
Based on code from "Martin Fuzzey" <mfuzzey@gmail.com>
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* removed iomux-mx1-mx2.h completely
* distributes the former contents to four different files (iomux-mx1.h,
iomux-mx21.h, iomux-mx27.h and the file iomux-mx2x.h, which is common to
both i.MX21 and i.MX27).
* adds all documented IOMUX definitions for i.MX21 and i.MX27
* fixes a few that were wrong (PD14_AOUT_FEC_CLR, PE16_AF_RTCK).
* don't silenly include <linux/io.h>
* and fixes all collateral damage from above
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is a framebuffer driver for i.MX31 SoCs. It only supports synchronous
displays, vertical panning supported, no overlay support.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Valentin Longchamp
Magnus Lilja
Fabio Estevam
Ivo Clarysse
Guennadi Liakhovetski
Holger Schurig
Sascha Hauer
Uwe Kleine-König
Darius Augulis
Paulius Zaleckas
Vladimir Barinov
Linus Torvalds
Ilya Yanok
Russell King
Mark Brown