clk: socfpga: split clk code

[firefly-linux-kernel-4.4.55.git] / drivers / clk / socfpga / clk.h

diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
new file mode 100644 (file)
index 0000000..d2e5401
--- /dev/null
+++ b/drivers/clk/socfpga/clk.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2013, Steffen Trumtrar <s.trumtrar@pengutronix.de>
+ *
+ * based on drivers/clk/tegra/clk.h
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef __SOCFPGA_CLK_H
+#define __SOCFPGA_CLK_H
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+
+/* Clock Manager offsets */
+#define CLKMGR_CTRL            0x0
+#define CLKMGR_BYPASS          0x4
+#define CLKMGR_L4SRC           0x70
+#define CLKMGR_PERPLL_SRC      0xAC
+
+#define SOCFPGA_MAX_PARENTS            3
+
+extern void __iomem *clk_mgr_base_addr;
+
+void __init socfpga_pll_init(struct device_node *node);
+void __init socfpga_periph_init(struct device_node *node);
+void __init socfpga_gate_init(struct device_node *node);
+
+struct socfpga_pll {
+       struct clk_gate hw;
+};
+
+struct socfpga_gate_clk {
+       struct clk_gate hw;
+       char *parent_name;
+       u32 fixed_div;
+       void __iomem *div_reg;
+       u32 width;      /* only valid if div_reg != 0 */
+       u32 shift;      /* only valid if div_reg != 0 */
+       u32 clk_phase[2];
+};
+
+struct socfpga_periph_clk {
+       struct clk_gate hw;
+       char *parent_name;
+       u32 fixed_div;
+};
+
+#endif /* SOCFPGA_CLK_H */