This fixes many sparse warnings like:

	arch/arm/mach-imx/clock-imx27.c:597:1: warning: Using plain integer as NULL pointer
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Currently the uarts and timer only work because they are
turned on by reset default. Make them secondary clocks
of their corresponding peripheral clocks to make sure they
are turned on when necessary. Also, register some clocks
to get rid of compiler warnings
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Addiontionally make the interrupt #defines match the base address
defines MX.._NFC_BASE_ADDR.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

A 2M bytes SPI NOR flash(sst25vf016b) is soldered on the mx51_3ds
board.  So add the corresponding device for it.
Signed-off-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

On the imx51_3ds board, eCSPI2 is connected to a SPI NOR flash,
now add iomux definitions for those used pins.
Signed-off-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

The driver recently learned to handle platform ids.  Make use of this
new feature.  The up side is that the driver needs less knowledge about
the spi interfaces used on different SoCs.
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

i.MX51 comes with two eCSPI interfaces (that are quite different from
what was known before---the tried and tested Freescale way) and a CSPI
interface that is identical to the devices found on i.MX25 and i.MX35.

This patch is a merge of two very similar patches (by Jason Wang and Sascha
Hauer resp.) plus a (now hopefully correct) reimplementation of the
clock calculation.
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

This prepares adding support for imx51's eCSPI.  This IP has seperate
control and config bits for all four supported chip selects, so the
config routine needs to know which chip select is being used even if
the chipselect is realized by a gpio.
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Nearly everything that is needed is provided by the version of the SPI IP.
Now the only checks left using cpu_is_... are clk divider tuning on mx21/mx27
and autodetection (which will die soon).
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

This has the advantage not to need to much cpu_is_... macros.  Still more
when imx51 support is added which has two different spi interfaces which
would introduce additional checks on the device id.

With this setup it's not possible for the compiler anymore to detect the
unused functions, so four additional kconfig symbols are introduced to
ifdef out the unneeded functions in the callback array and all these
functions are marked with __maybe_unused to suppress the corresponding
gcc warnings.

Comparing the driver footprint with and without the patch for a mx27
kernel yields:

add/remove: 2/0 grow/shrink: 2/0 up/down: 280/0 (280)
function                                     old     new   delta
spi_imx_devtype                                -     192    +192
spi_imx_probe                                980    1032     +52
spi_imx_devtype_data                           -      32     +32
spi_imx_setupxfer                            276     280      +4

Later when the platform code is updated to use the platform ids, the
autodetection can be removed which will make the driver a bit smaller
again.  (~60 Bytes in my test.)
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

This is a follow up to

	c6987159 (ARM: imx: dynamically register imx-i2c devices (imx27))
	2b92084f (ARM: imx: dynamically register imx-i2c devices (imx21))
	6348e6b5 (ARM: imx: dynamically register imx-i2c devices (imx1))
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

For mx1_defconfig this yields:

	add/remove: 1/0 grow/shrink: 1/4 up/down: 49/-108 (-59)
	function                                     old     new   delta
	imx1_imx_uart_data                             -      48     +48
	kernel_config_data                          7277    7278      +1
	imx_add_imx_uart_1irq                        132     128      -4
	imx_add_imx_uart_3irq                        164     156      -8
	scb9328_init                                  96      64     -32
	mx1ads_init                                  220     156     -64

for mx21_defconfig this yields:

	add/remove: 1/0 grow/shrink: 0/3 up/down: 64/-52 (12)
	function                                     old     new   delta
	imx21_imx_uart_data                            -      64     +64
	imx_add_imx_uart_3irq                        160     156      -4
	imx_add_imx_uart_1irq                        140     136      -4
	mx21ads_board_init                           220     176     -44

for a random mx25 config this yields:

	add/remove: 1/0 grow/shrink: 0/5 up/down: 80/-56 (24)
	function                                     old     new   delta
	imx25_imx_uart_data                            -      80     +80
	imx_add_imx_uart_3irq                        160     156      -4
	imx_add_imx_uart_1irq                        140     136      -4
	mx25pdk_init                                 288     272     -16
	eukrea_mbimxsd_baseboard_init                272     256     -16
	eukrea_cpuimx25_init                         252     236     -16

for mx27_defconfig this yields:

	add/remove: 1/0 grow/shrink: 0/10 up/down: 96/-280 (-184)
	function                                     old     new   delta
	imx27_imx_uart_data                            -      96     +96
	imx_add_imx_uart_3irq                        160     156      -4
	imx_add_imx_uart_1irq                        140     136      -4
	pca100_init                                  560     544     -16
	mx27pdk_init                                 112      96     -16
	mx27lite_init                                 92      76     -16
	eukrea_cpuimx27_init                         332     316     -16
	pcm038_init                                  388     348     -40
	mxt_td60_board_init                          320     280     -40
	eukrea_mbimx27_baseboard_init                476     436     -40
	mx27ads_board_init                           368     280     -88

and finally for mx3_defconfig:

	add/remove: 2/0 grow/shrink: 0/9 up/down: 128/-344 (-216)
	function                                     old     new   delta
	imx31_imx_uart_data                            -      80     +80
	imx35_imx_uart_data                            -      48     +48
	imx_add_imx_uart_1irq                        132     128      -4
	imx_add_imx_uart_3irq                        164     152     -12
	mx31moboard_devboard_init                    360     344     -16
	mx31lite_db_init                             176     160     -16
	mx31moboard_smartbot_init                    384     360     -24
	kzm_board_init                               232     208     -24
	armadillo5x0_init                            392     364     -28
	mx31lilly_db_init                            248     208     -40
	mxc_board_init                              3760    3580    -180
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Group soc specific data in a global struct instead of repeating it for
each call to imxXX_add_spi_imxX.  The structs holding the actual data
are placed in .init.constdata and so don't do much harm.  Compared to
the previous approach this reduces code size to call imx_add_spi_imx.
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

The names used now match the processor's reference manual.  Also remove
MXC from the interrupt defines to match the other imx platforms.
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

This makes the header more look like the other ones, i.e.

 - sort #defines by value
 - use lowercase hex constants
 - use a consistently named header guard
Acked-by: NJason Wang <jason77.wang@gmail.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Further remove FIXED_PHY as it breaks the ethernet.
VGA_CONSOLE isn't selectable anymore since fb78b51c.
EXT3_DEFAULTS_TO_ORDERED defaults to y since aa32a796.
INOTIFY is gone since 2dfc1cae.
CONFIG_DETECT_SOFTLOCKUP is gone since e16bb1d7.
Enable TMPFS for udev.
KEYS is selected by NFS_USE_KERNEL_DNS
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

This machine is enabled in mx3_defconfig and so mx31pdk_defconfig isn't
really useful.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Furthermore INOTIFY is gone since

	2dfc1cae (inotify: remove inotify in kernel interface)
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

- enable all mx27 machines (MACH_CPUIMX27, MACH_IMX27_VISSTRIM_M10,
  MACH_PCA100, MACH_MXT_TD60) including optional features for
  CPUIMX27
- eukrea_mbimx27-baseboard.c uses TOUCHSCREEN_ADS7846
- mach-cpuimx27.c uses SERIAL_8250
- several machines make use of SPI_IMX (selects SPI_BITBANG)
- drop VGA_CONSOLE as this isn't selectable anymore since fb78b51c
- several machines make use of USB_ULPI (depends on USB, but don't
  enable USB_DEVICE_CLASS as it's deprecated)
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>

This fixes:

	arch/arm/plat-mxc/ehci.c: In function 'mxc_initialize_usb_hw':
	arch/arm/plat-mxc/ehci.c:260: warning: assignment makes integer from pointer without a cast
	arch/arm/plat-mxc/ehci.c:263: warning: assignment makes integer from pointer without a cast
	arch/arm/plat-mxc/ehci.c:270: warning: assignment makes integer from pointer without a cast
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>