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-rw-r--r--drivers/clk/pistachio/clk.h174
1 files changed, 174 insertions, 0 deletions
diff --git a/drivers/clk/pistachio/clk.h b/drivers/clk/pistachio/clk.h
new file mode 100644
index 000000000000..52fabbc24624
--- /dev/null
+++ b/drivers/clk/pistachio/clk.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * 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.
+ */
+
+#ifndef __PISTACHIO_CLK_H
+#define __PISTACHIO_CLK_H
+
+#include <linux/clk-provider.h>
+
+struct pistachio_gate {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int shift;
+ const char *name;
+ const char *parent;
+};
+
+#define GATE(_id, _name, _pname, _reg, _shift) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .shift = _shift, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_mux {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int shift;
+ unsigned int num_parents;
+ const char *name;
+ const char **parents;
+};
+
+#define PNAME(x) static const char *x[] __initconst
+
+#define MUX(_id, _name, _pnames, _reg, _shift) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .shift = _shift, \
+ .name = _name, \
+ .parents = _pnames, \
+ .num_parents = ARRAY_SIZE(_pnames) \
+ }
+
+
+struct pistachio_div {
+ unsigned int id;
+ unsigned long reg;
+ unsigned int width;
+ unsigned int div_flags;
+ const char *name;
+ const char *parent;
+};
+
+#define DIV(_id, _name, _pname, _reg, _width) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .width = _width, \
+ .div_flags = 0, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+#define DIV_F(_id, _name, _pname, _reg, _width, _div_flags) \
+ { \
+ .id = _id, \
+ .reg = _reg, \
+ .width = _width, \
+ .div_flags = _div_flags, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_fixed_factor {
+ unsigned int id;
+ unsigned int div;
+ const char *name;
+ const char *parent;
+};
+
+#define FIXED_FACTOR(_id, _name, _pname, _div) \
+ { \
+ .id = _id, \
+ .div = _div, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_pll_rate_table {
+ unsigned long fref;
+ unsigned long fout;
+ unsigned int refdiv;
+ unsigned int fbdiv;
+ unsigned int postdiv1;
+ unsigned int postdiv2;
+ unsigned int frac;
+};
+
+enum pistachio_pll_type {
+ PLL_GF40LP_LAINT,
+ PLL_GF40LP_FRAC,
+};
+
+struct pistachio_pll {
+ unsigned int id;
+ unsigned long reg_base;
+ enum pistachio_pll_type type;
+ struct pistachio_pll_rate_table *rates;
+ unsigned int nr_rates;
+ const char *name;
+ const char *parent;
+};
+
+#define PLL(_id, _name, _pname, _type, _reg, _rates) \
+ { \
+ .id = _id, \
+ .reg_base = _reg, \
+ .type = _type, \
+ .rates = _rates, \
+ .nr_rates = ARRAY_SIZE(_rates), \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+#define PLL_FIXED(_id, _name, _pname, _type, _reg) \
+ { \
+ .id = _id, \
+ .reg_base = _reg, \
+ .type = _type, \
+ .rates = NULL, \
+ .nr_rates = 0, \
+ .name = _name, \
+ .parent = _pname, \
+ }
+
+struct pistachio_clk_provider {
+ struct device_node *node;
+ void __iomem *base;
+ struct clk_onecell_data clk_data;
+};
+
+extern struct pistachio_clk_provider *
+pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks);
+extern void pistachio_clk_register_provider(struct pistachio_clk_provider *p);
+
+extern void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
+ struct pistachio_gate *gate,
+ unsigned int num);
+extern void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
+ struct pistachio_mux *mux,
+ unsigned int num);
+extern void pistachio_clk_register_div(struct pistachio_clk_provider *p,
+ struct pistachio_div *div,
+ unsigned int num);
+extern void
+pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
+ struct pistachio_fixed_factor *ff,
+ unsigned int num);
+extern void pistachio_clk_register_pll(struct pistachio_clk_provider *p,
+ struct pistachio_pll *pll,
+ unsigned int num);
+
+extern void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
+ unsigned int *clk_ids, unsigned int num);
+
+#endif