The initial implementation in commit e120c17a70 ("clk: mvebu: support
for 98DX3236 SoC") hardcoded a fixed value for the main PLL frequency.
Port code from the Marvell supplied Linux kernel to support different
PLL frequencies and provide clock gating support.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The 98DX3236, 98DX3336, 98DX4521 and variants have a different TCLK from
the Armada XP (200MHz vs 250MHz). The CPU core clock is fixed at 800MHz.
The clock gating options are a subset of those on the Armada XP.
The core clock divider is different to the Armada XP also.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Init order of CLK_OF_DECLARE'd drivers depends on compile order.
Unfortunately, clk_of_init does not allow drivers to return errors,
e.g. -EPROBE_DEFER if parent clocks have not been registered, yet.
To avoid init order woes for MVEBU clock drivers, we take care of
proper init order ourselves. This patch joins core-clk and gating-clk
init to maintain proper init order.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
__initconst should be placed between the variable name and equal
sign for the variable to be placed in the intended section.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This is moving core clock and clock gating init for Armada XP to
its own file and adds a Kconfig option. Also init functions are added
and declared so they get called on of_clk_init.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Chris Packham
Sebastian Hesselbarth
Sachin Kamat