MIPS: Netlogic: PIC freq calculation for XLP 9XX/2XX

Update PIC frequency calculation for XLP9XX and 2XX processors using
the correct PLL registers. This should work for all possible board
configurations.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6876/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/mips/netlogic/common/time.c b/arch/mips/netlogic/common/time.c
index 13391b8a6031..0c0a1a606f73 100644
--- a/arch/mips/netlogic/common/time.c
+++ b/arch/mips/netlogic/common/time.c
@@ -82,6 +82,7 @@ static struct clocksource csrc_pic = {
 static void nlm_init_pic_timer(void)
 {
         uint64_t picbase = nlm_get_node(0)->picbase;
+        u32 picfreq;
 
         nlm_pic_set_timer(picbase, PIC_CLOCK_TIMER, ~0ULL, 0, 0);
         if (current_cpu_data.cputype == CPU_XLR) {
@@ -92,7 +93,9 @@ static void nlm_init_pic_timer(void)
                 csrc_pic.read   = nlm_get_pic_timer;
         }
         csrc_pic.rating = 1000;
-        clocksource_register_hz(&csrc_pic, pic_timer_freq());
+        picfreq = pic_timer_freq();
+        clocksource_register_hz(&csrc_pic, picfreq);
+        pr_info("PIC clock source added, frequency %d\n", picfreq);
 }
 
 void __init plat_time_init(void)