MIPS: lantiq: adds static clock for PP32

The Lantiq DSL SoCs have an internal networking processor. Add code to read
the static clock rate.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4815/

1 files changed, 10 insertions, 2 deletions

diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index ce2f129b081f..d90356004027 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -26,13 +26,15 @@
 #include "prom.h"
 
 /* lantiq socs have 3 static clocks */
-static struct clk cpu_clk_generic[3];
+static struct clk cpu_clk_generic[4];
 
-void clkdev_add_static(unsigned long cpu, unsigned long fpi, unsigned long io)
+void clkdev_add_static(unsigned long cpu, unsigned long fpi,
+                        unsigned long io, unsigned long ppe)
 {
         cpu_clk_generic[0].rate = cpu;
         cpu_clk_generic[1].rate = fpi;
         cpu_clk_generic[2].rate = io;
+        cpu_clk_generic[3].rate = ppe;
 }
 
 struct clk *clk_get_cpu(void)
@@ -51,6 +53,12 @@ struct clk *clk_get_io(void)
         return &cpu_clk_generic[2];
 }
 
+struct clk *clk_get_ppe(void)
+{
+        return &cpu_clk_generic[3];
+}
+EXPORT_SYMBOL_GPL(clk_get_ppe);
+
 static inline int clk_good(struct clk *clk)
 {
         return clk && !IS_ERR(clk);