1 files changed, 22 insertions, 2 deletions

diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
index c9203b1007aa..234acad79b9e 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -8,6 +8,7 @@
  * for more details.
  */
 
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <asm/cpuinfo.h>
 #include <asm/pvr.h>
@@ -39,6 +40,7 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
         {"8.30.a", 0x17},
         {"8.40.a", 0x18},
         {"8.40.b", 0x19},
+        {"8.50.a", 0x1a},
         {"9.0", 0x1b},
         {"9.1", 0x1d},
         {NULL, 0},
@@ -68,11 +70,10 @@ const struct family_string_key family_string_lookup[] = {
 };
 
 struct cpuinfo cpuinfo;
+static struct device_node *cpu;
 
 void __init setup_cpuinfo(void)
 {
-        struct device_node *cpu = NULL;
-
         cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu");
         if (!cpu)
                 pr_err("You don't have cpu!!!\n");
@@ -102,3 +103,22 @@ void __init setup_cpuinfo(void)
                 pr_warn("%s: Stream instructions enabled"
                         " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__);
 }
+
+void __init setup_cpuinfo_clk(void)
+{
+        struct clk *clk;
+
+        clk = of_clk_get(cpu, 0);
+        if (IS_ERR(clk)) {
+                pr_err("ERROR: CPU CCF input clock not found\n");
+                /* take timebase-frequency from DTS */
+                cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+        } else {
+                cpuinfo.cpu_clock_freq = clk_get_rate(clk);
+        }
+
+        if (!cpuinfo.cpu_clock_freq) {
+                pr_err("ERROR: CPU clock frequency not setup\n");
+                BUG();
+        }
+}