Commit Graph

12 Commits

Author SHA1 Message Date
Jiada Wang 71ed547743 ARM: imx: remove MLB PLL from pllv3
MLB PLL should be handled internally in MLB driver,
so remove it from pllv3.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
CC: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:12 +08:00
Martin Fuzzey 75f83d06c3 ARM: i.MX5: Allow DT clock providers
Currently clock providers defined in the DT are not registered
on i.MX5 platforms since of_clk_init() is not called.

This is not a problem for the SOC's own clocks, which are registered
in code,  but prevents the DT being used to define clocks for external
hardware.

Fix this by calling of_clk_init() and actually using the DT to obtain
the 4 SOC fixed clocks.
These are already defined in the DT but were previously just used to
manually obtain the rate.

Fall back to the old scheme for non DT platforms.

Since the same method may be useful for other i.MX platforms
implement the imx_obtain_fixed_clock() function in common code.

Actually changing other i.MX platforms to use this should be done
later by someone with access to the appropriate hardware.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 15:45:09 +08:00
Philipp Zabel 3ce921702b ARM i.MX: Add imx_clk_divider_flags and imx_clk_mux_flags
The default is for dividers to set CLK_SET_PARENT_RATE and for muxes to
not set that flag. In the LDB clock tree, we need the opposite, so add
functions to create divider and mux clocks with configurable flags.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12 19:01:44 +08:00
Sascha Hauer 2b254693be ARM i.MX6: remove gate_mask from pllv3
Now that the additional enable bits in the enet PLL are handled
as gates, the gate_mask is identical for all plls. Remove the
gate_mask from the code and use the BM_PLL_ENABLE bit for
enabling/disabling the PLL.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-11-22 15:32:39 +01:00
Sascha Hauer 3a84d17bb3 ARM: i.MX remove last leftovers from legacy clock support
This also removes mach/clock.h along the way

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-09-12 11:46:51 +02:00
Shawn Guo 32af7a830f ARM: imx: add common clock support for clk busy
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-02 12:08:26 +02:00
Shawn Guo a10bd67f19 ARM: imx: add common clock support for pfd
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-02 12:08:20 +02:00
Sascha Hauer b75c015143 ARM i.MX: Add common clock support for 2bit gate
This gate consists of two bits:

0b00: clk disabled
0b01: clk enabled in run mode and disabled in sleep mode
0b11: clk enabled

Currently only disabled and enabled are supported. As it's unlikely
that we find something like this in another SoC create a i.MX specific
clk helper for this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-02 12:08:13 +02:00
Shawn Guo a3f6b9dbf2 ARM: imx: add common clock support for pllv3
This PLL is found on i.MX6 SoCs

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-02 12:08:06 +02:00
Sascha Hauer a547b816a8 ARM i.MX: Add common clock support for pllv2
This PLL is found on i.MX51 and i.MX53

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-02 12:07:59 +02:00
Sascha Hauer 2af9e6db14 ARM i.MX: Add common clock support for pllv1
The pllv1 is found on i.MX1, i.M25, i.MX27, i.MX31 and i.MX35.
Currently only reading the rate is supported.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-02 12:07:53 +02:00
Sascha Hauer 6c7b06850c ARM i.MX: prepare for common clock framework
- Add necessary #ifdefs for CONFIG_COMMON_CLOCK
- Add a global spinlock to protect the CCM registers

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-04-25 17:03:46 +02:00