clk: at91: add PMC peripheral clocks

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

Almost all peripherals provided by at91 SoCs need a clock to work properly.
This clock is enabled/disabled using PCER/PCDR resgisters.

Each peripheral is given an id (see atmel's datasheets) which is used to
define and reference peripheral clocks.

Some new SoCs (at91sam9x5 and sama5d3) provide a new register (PCR) where you
can configure the peripheral clock as a division of the master clock.
This will help reducing the peripherals power comsumption.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile
index c2b70683e4e0..04deba35893e 100644
--- a/drivers/clk/at91/Makefile
+++ b/drivers/clk/at91/Makefile
@@ -4,4 +4,4 @@
 
 obj-y += pmc.o
 obj-y += clk-main.o clk-pll.o clk-plldiv.o clk-master.o
-obj-y += clk-system.o
+obj-y += clk-system.o clk-peripheral.o