zynq: Implement dump clock command

Enable and implement dump clock command which shows
soc frequencies.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/zynq/clk.c b/arch/arm/cpu/armv7/zynq/clk.c
index 0891a23..4307111 100644
--- a/arch/arm/cpu/armv7/zynq/clk.c
+++ b/arch/arm/cpu/armv7/zynq/clk.c
@@ -6,6 +6,7 @@
  */
 #include <common.h>
 #include <errno.h>
+#include <clk.h>
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/clk.h>
@@ -636,3 +637,23 @@ const char *zynq_clk_get_name(enum zynq_clk clk)
 {
 	return clks[clk].name;
 }
+
+/**
+ * soc_clk_dump() - Print clock frequencies
+ * Returns zero on success
+ *
+ * Implementation for the clk dump command.
+ */
+int soc_clk_dump(void)
+{
+	int i;
+
+	printf("clk\t\tfrequency\n");
+	for (i = 0; i < clk_max; i++) {
+		const char *name = zynq_clk_get_name(i);
+		if (name)
+			printf("%10s%20lu\n", name, zynq_clk_get_rate(i));
+	}
+
+	return 0;
+}