MIPS: Lantiq: Fix pp32 clock on vr9

The vendor code uses different clock values for this clock.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11384/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h
index 77e4bdb..101afcb 100644 (file)
--- a/arch/mips/lantiq/clk.h
+++ b/arch/mips/lantiq/clk.h
@@ -31,10 +31,12 @@
 #define CLOCK_240M     240000000
 #define CLOCK_250M     250000000
 #define CLOCK_266M     266666666
+#define CLOCK_288M     288888888
 #define CLOCK_300M     300000000
 #define CLOCK_333M     333333333
 #define CLOCK_393M     393215332
 #define CLOCK_400M     400000000
+#define CLOCK_432M     432000000
 #define CLOCK_450M     450000000
 #define CLOCK_500M     500000000
 #define CLOCK_600M     600000000

diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
index 55fd150..d372a60 100644 (file)
--- a/arch/mips/lantiq/xway/clk.c
+++ b/arch/mips/lantiq/xway/clk.c
@@ -175,15 +175,18 @@ unsigned long ltq_vr9_fpi_hz(void)
 
 unsigned long ltq_vr9_pp32_hz(void)
 {
-       unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 3;
+       unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 0x7;
        unsigned long clk;
 
        switch (clksys) {
+       case 0:
+               clk = CLOCK_500M;
+               break;
        case 1:
-               clk = CLOCK_450M;
+               clk = CLOCK_432M;
                break;
        case 2:
-               clk = CLOCK_300M;
+               clk = CLOCK_288M;
                break;
        default:
                clk = CLOCK_500M;