linux-toradex.git/include/linux/clk/at91_pmc.h, branch v3.17

clk: at91: add slow clks driver

2014-05-07T16:27:45+00:00

AT91 slow clk is a clk multiplexer.

In some SoCs (sam9x5, sama5, sam9g45 families) this multiplexer can
choose among 2 sources: an internal RC oscillator circuit and an oscillator
using an external crystal.

In other Socs (sam9260 family) the multiplexer source is hardcoded with
the OSCSEL signal.

Signed-off-by: Boris BREZILLON 
Acked-by: Mike Turquette 
Signed-off-by: Nicolas Ferre

clk: at91: add PMC pll clocks

2013-12-02T14:31:22+00:00

This patch adds new at91 pll clock implementation using common clk framework.

The pll clock layout describe the PLLX register layout.
There are four pll clock layouts:
- at91rm9200
- at91sam9g20
- at91sam9g45
- sama5d3

PLL clocks are given characteristics:
- min/max clock source rate
- ranges of valid clock output rates
- values to set in out and icpll fields for each supported output range

These characteristics are checked during rate change to avoid
over/underclocking.

These characteristics are described in atmel's SoC datasheet in
"Electrical Characteristics" paragraph.

Signed-off-by: Boris BREZILLON 
Acked-by: Mike Turquette 
Signed-off-by: Nicolas Ferre

ARM: at91: move at91_pmc.h to include/linux/clk/at91_pmc.h

2013-12-02T14:22:15+00:00

This patch moves at91_pmc.h header from machine specific directory
(arch/arm/mach-at91/include/mach/at91_pmc.h) to clk include directory
(include/linux/clk/at91_pmc.h).
We need this to avoid reference to machine specific headers in clk
drivers.

Signed-off-by: Boris BREZILLON 
Acked-by: Felipe Balbi 
Acked-by: Mike Turquette 
Signed-off-by: Nicolas Ferre