1 files changed, 38 insertions, 0 deletions
diff --git a/board/synopsys/hsdk/clk-lib.h b/board/synopsys/hsdk/clk-lib.h
new file mode 100644
index 0000000000..3b7dbc58ae
--- /dev/null
+++ b/board/synopsys/hsdk/clk-lib.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2018 Synopsys, Inc. All rights reserved.
+ * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __BOARD_CLK_LIB_H
+#define __BOARD_CLK_LIB_H
+
+#include <common.h>
+
+enum clk_ctl_ops {
+	CLK_SET		= BIT(0), /* set frequency */
+	CLK_GET		= BIT(1), /* get frequency */
+	CLK_ON		= BIT(2), /* enable clock */
+	CLK_OFF		= BIT(3), /* disable clock */
+	CLK_PRINT	= BIT(4), /* print frequency */
+	CLK_MHZ		= BIT(5)  /* all values in MHZ instead of HZ */
+};
+
+/*
+ * Depending on the clk_ctl_ops enable / disable /
+ * set clock rate from 'rate' argument / read clock to 'rate' argument /
+ * print clock rate. If CLK_MHZ flag set in clk_ctl_ops 'rate' is in MHz,
+ * otherwise - in Hz.
+ *
+ * This function expects "clk-fmeas" node in device tree:
+ * / {
+ *	clk-fmeas {
+ *		clocks = <&cpu_pll>, <&sys_pll>;
+ *		clock-names = "cpu-pll", "sys-pll";
+ *	};
+ * };
+ */
+int soc_clk_ctl(const char *name, ulong *rate, enum clk_ctl_ops ctl);
+
+#endif /* __BOARD_CLK_LIB_H */