6f9ba9b447
This is a driver for the complex divider cells found on Marvell Berlin2 SoCs. The cells come in two flavors: single register cells and shared register cells. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
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* Copyright (c) 2014 Marvell Technology Group Ltd.
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*
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* Alexandre Belloni <alexandre.belloni@free-electrons.com>
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* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __BERLIN2_DIV_H
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#define __BERLIN2_DIV_H
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struct clk;
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#define BERLIN2_DIV_HAS_GATE BIT(0)
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#define BERLIN2_DIV_HAS_MUX BIT(1)
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#define BERLIN2_PLL_SELECT(_off, _sh) \
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.pll_select_offs = _off, \
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.pll_select_shift = _sh
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#define BERLIN2_PLL_SWITCH(_off, _sh) \
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.pll_switch_offs = _off, \
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.pll_switch_shift = _sh
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#define BERLIN2_DIV_SELECT(_off, _sh) \
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.div_select_offs = _off, \
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.div_select_shift = _sh
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#define BERLIN2_DIV_SWITCH(_off, _sh) \
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.div_switch_offs = _off, \
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.div_switch_shift = _sh
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#define BERLIN2_DIV_D3SWITCH(_off, _sh) \
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.div3_switch_offs = _off, \
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.div3_switch_shift = _sh
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#define BERLIN2_DIV_GATE(_off, _sh) \
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.gate_offs = _off, \
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.gate_shift = _sh
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#define BERLIN2_SINGLE_DIV(_off) \
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BERLIN2_DIV_GATE(_off, 0), \
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BERLIN2_PLL_SELECT(_off, 1), \
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BERLIN2_PLL_SWITCH(_off, 4), \
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BERLIN2_DIV_SWITCH(_off, 5), \
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BERLIN2_DIV_D3SWITCH(_off, 6), \
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BERLIN2_DIV_SELECT(_off, 7)
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struct berlin2_div_map {
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u16 pll_select_offs;
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u16 pll_switch_offs;
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u16 div_select_offs;
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u16 div_switch_offs;
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u16 div3_switch_offs;
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u16 gate_offs;
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u8 pll_select_shift;
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u8 pll_switch_shift;
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u8 div_select_shift;
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u8 div_switch_shift;
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u8 div3_switch_shift;
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u8 gate_shift;
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};
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struct berlin2_div_data {
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const char *name;
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const u8 *parent_ids;
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int num_parents;
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unsigned long flags;
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struct berlin2_div_map map;
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u8 div_flags;
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};
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struct clk * __init
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berlin2_div_register(const struct berlin2_div_map *map,
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void __iomem *base, const char *name, u8 div_flags,
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const char **parent_names, int num_parents,
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unsigned long flags, spinlock_t *lock);
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#endif /* __BERLIN2_DIV_H */
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