kernel/drivers/clk/berlin/berlin2-div.h

   1 /*
   2  * Copyright (c) 2014 Marvell Technology Group Ltd.
   3  *
   4  * Alexandre Belloni <alexandre.belloni@free-electrons.com>
   5  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms and conditions of the GNU General Public License,
   9  * version 2, as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef __BERLIN2_DIV_H
  20 #define __BERLIN2_DIV_H
  21
  22 struct clk;
  23
  24 #define BERLIN2_DIV_HAS_GATE            BIT(0)
  25 #define BERLIN2_DIV_HAS_MUX             BIT(1)
  26
  27 #define BERLIN2_PLL_SELECT(_off, _sh)   \
  28         .pll_select_offs = _off,        \
  29         .pll_select_shift = _sh
  30
  31 #define BERLIN2_PLL_SWITCH(_off, _sh)   \
  32         .pll_switch_offs = _off,        \
  33         .pll_switch_shift = _sh
  34
  35 #define BERLIN2_DIV_SELECT(_off, _sh)   \
  36         .div_select_offs = _off,        \
  37         .div_select_shift = _sh
  38
  39 #define BERLIN2_DIV_SWITCH(_off, _sh)   \
  40         .div_switch_offs = _off,        \
  41         .div_switch_shift = _sh
  42
  43 #define BERLIN2_DIV_D3SWITCH(_off, _sh) \
  44         .div3_switch_offs = _off,       \
  45         .div3_switch_shift = _sh
  46
  47 #define BERLIN2_DIV_GATE(_off, _sh)     \
  48         .gate_offs = _off,              \
  49         .gate_shift = _sh
  50
  51 #define BERLIN2_SINGLE_DIV(_off)        \
  52         BERLIN2_DIV_GATE(_off, 0),      \
  53         BERLIN2_PLL_SELECT(_off, 1),    \
  54         BERLIN2_PLL_SWITCH(_off, 4),    \
  55         BERLIN2_DIV_SWITCH(_off, 5),    \
  56         BERLIN2_DIV_D3SWITCH(_off, 6),  \
  57         BERLIN2_DIV_SELECT(_off, 7)
  58
  59 struct berlin2_div_map {
  60         u16 pll_select_offs;
  61         u16 pll_switch_offs;
  62         u16 div_select_offs;
  63         u16 div_switch_offs;
  64         u16 div3_switch_offs;
  65         u16 gate_offs;
  66         u8 pll_select_shift;
  67         u8 pll_switch_shift;
  68         u8 div_select_shift;
  69         u8 div_switch_shift;
  70         u8 div3_switch_shift;
  71         u8 gate_shift;
  72 };
  73
  74 struct berlin2_div_data {
  75         const char *name;
  76         const u8 *parent_ids;
  77         int num_parents;
  78         unsigned long flags;
  79         struct berlin2_div_map map;
  80         u8 div_flags;
  81 };
  82
  83 struct clk * __init
  84 berlin2_div_register(const struct berlin2_div_map *map,
  85              void __iomem *base,  const char *name, u8 div_flags,
  86              const char **parent_names, int num_parents,
  87              unsigned long flags,  spinlock_t *lock);
  88
  89 #endif /* __BERLIN2_DIV_H */