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Author SHA1 Message Date
Sascha Hauer ef08a80de8 ARM: i.MX25: Fix LCDC clocks
- Make sure the LCDC ipg clock is turned off during startup
- register all LCDC clocks (ahb, ipg, per) and pass them to driver

This is necessary because the LCDC doesn't have an enable bit. It just
starts working once the clocks are turned on. If the registers have
invalid values at that time the controller goes into some error state.
So we have to make sure the clocks are turned off during startup and
only turned on in the driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-02-10 17:06:36 +01:00
Sascha Hauer 45c5110587 ARM: i.MX25: Add missing GPT clock lookups
Only one GPT will be used, but with devicetree support we can't predict
which one it is, so we need the clock lookup for all GPTs to ensure
that the timer gets its clock.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-01-31 21:29:34 +01:00
Sascha Hauer 2260389da4 ARM: i.MX: Make timer available earlier
This moves the CCM drivers to core_initcall since this has no dependencies.
This way we can be sure that the clock for the clocksource is available in
at postcore_initcall time.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-06-18 09:02:44 +02:00
Daniel Mierswa 0f7bff88f0 i.MX21/27: don't enable lcd bus clocks too early
On the MX27 based board phycard-i.MX27 the display won't properly
come up.
Before removing imx-regs.h and the code that sets the register
in the i.MX video driver, the PCCR registers were set _after_
the screen start (LSSAR) was set.
This restores that old behaviour and makes the display come up
properly again.
I did not have a chance to test this on any other i.MX27 or i.MX21
hardware though I assume that the "old" order is required there
too.

Signed-off-by: Daniel Mierswa <d.mierswa@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-01-17 19:02:42 +01:00
Sascha Hauer aaad5cbad7 Merge branch 'for-next/clk' into for-next/imx
Conflicts:
	drivers/net/fec_imx.c
2012-10-17 20:21:46 +02:00
Sascha Hauer f393758c53 Merge branch 'for-next/imx-dt' into for-next/imx 2012-10-17 08:48:54 +02:00
Sascha Hauer beda98485c ARM i.MX25: Add lcdc per gate
This gate is used to enable/disable the lcd controller, hence we
need a gate for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-10 09:47:51 +02:00
Sascha Hauer cec48e77b8 ARM i.MX25: Enable all needed clocks during startup
This enables the following clocks on i.MX25:

PER: esdhc1, esdhc2, i2c, nfc, owire, pwm, uart
AHB: emi, esdhc1, esdhc2, fec, lcdc, usbotg
IPG: cspi1, cspi2, cspi3, esdhc1, esdhc2, fec, gpt1, gpt2, gpt3, gpt4,
iim, LCDC_EN, pwm1, pwm2, pwm3, pwm4, spba, tsc, uart1, uart2, uart3,
uart4, uart5

These are hopefully all the clocks we need for barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-10 09:47:38 +02:00
Sascha Hauer aa64d57898 ARM i.MX: Add devicetree support to the ccm drivers
This adds the compatible strings to the CCM drivers.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-05 12:34:19 +02:00
Sascha Hauer 94de405d8f Merge branch 'for-next/imx-clk' 2012-10-04 15:24:57 +02:00
Sascha Hauer 3e40a76cba ARM i.MX25: Switch to common clk support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-04 15:19:55 +02:00