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aw_ccung.c
(8.85 KB)
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aw_ccung.h
(3.07 KB)
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aw_clk.h
(15.84 KB)
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aw_clk_frac.c
(9.74 KB)
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aw_clk_frac.h
(1.83 KB)
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aw_clk_m.c
(6.45 KB)
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aw_clk_m.h
(1.67 KB)
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aw_clk_mipi.c
(7.41 KB)
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aw_clk_mipi.h
(1.78 KB)
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aw_clk_nkmp.c
(10.13 KB)
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aw_clk_nkmp.h
(1.86 KB)
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aw_clk_nm.c
(8.52 KB)
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aw_clk_nm.h
(1.78 KB)
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aw_clk_nmm.c
(6.79 KB)
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aw_clk_nmm.h
(1.79 KB)
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aw_clk_np.c
(6.09 KB)
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aw_clk_np.h
(1.75 KB)
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aw_clk_prediv_mux.c
(5.05 KB)
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aw_clk_prediv_mux.h
(1.74 KB)
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ccu_a10.c
(21.21 KB)
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ccu_a13.c
(15.15 KB)
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ccu_a31.c
(33.97 KB)
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ccu_a64.c
(28.57 KB)
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ccu_a83t.c
(26.14 KB)
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ccu_de2.c
(6.61 KB)
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ccu_h3.c
(26.92 KB)
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ccu_h6.c
(15.9 KB)
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ccu_h6_r.c
(5.48 KB)
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ccu_sun8i_r.c
(7.63 KB)
Editing: aw_clk_prediv_mux.c
/*- * Copyright (c) 2017 Emmanuel Vadot <manu@freebsd.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <dev/extres/clk/clk.h> #include <arm/allwinner/clkng/aw_clk.h> #include <arm/allwinner/clkng/aw_clk_prediv_mux.h> #include "clkdev_if.h" /* * clknode for clocks matching the formula : * * clk = clkin / prediv / div * * and where prediv is conditional * */ struct aw_clk_prediv_mux_sc { uint32_t offset; uint32_t mux_shift; uint32_t mux_mask; struct aw_clk_factor div; struct aw_clk_factor prediv; uint32_t flags; }; #define WRITE4(_clk, off, val) \ CLKDEV_WRITE_4(clknode_get_device(_clk), off, val) #define READ4(_clk, off, val) \ CLKDEV_READ_4(clknode_get_device(_clk), off, val) #define MODIFY4(_clk, off, clr, set ) \ CLKDEV_MODIFY_4(clknode_get_device(_clk), off, clr, set) #define DEVICE_LOCK(_clk) \ CLKDEV_DEVICE_LOCK(clknode_get_device(_clk)) #define DEVICE_UNLOCK(_clk) \ CLKDEV_DEVICE_UNLOCK(clknode_get_device(_clk)) static int aw_clk_prediv_mux_init(struct clknode *clk, device_t dev) { struct aw_clk_prediv_mux_sc *sc; uint32_t val; sc = clknode_get_softc(clk); DEVICE_LOCK(clk); READ4(clk, sc->offset, &val); DEVICE_UNLOCK(clk); /* Init the current parent */ val = (val & sc->mux_mask) >> sc->mux_shift; clknode_init_parent_idx(clk, val); return (0); } static int aw_clk_prediv_mux_set_mux(struct clknode *clk, int index) { struct aw_clk_prediv_mux_sc *sc; uint32_t val; sc = clknode_get_softc(clk); DEVICE_LOCK(clk); READ4(clk, sc->offset, &val); val &= ~sc->mux_mask; val |= index << sc->mux_shift; WRITE4(clk, sc->offset, val); DEVICE_UNLOCK(clk); return (0); } static int aw_clk_prediv_mux_recalc(struct clknode *clk, uint64_t *freq) { struct aw_clk_prediv_mux_sc *sc; uint32_t val, div, prediv; sc = clknode_get_softc(clk); DEVICE_LOCK(clk); READ4(clk, sc->offset, &val); DEVICE_UNLOCK(clk); div = aw_clk_get_factor(val, &sc->div); prediv = aw_clk_get_factor(val, &sc->prediv); *freq = *freq / prediv / div; return (0); } static clknode_method_t aw_prediv_mux_clknode_methods[] = { /* Device interface */ CLKNODEMETHOD(clknode_init, aw_clk_prediv_mux_init), CLKNODEMETHOD(clknode_set_mux, aw_clk_prediv_mux_set_mux), CLKNODEMETHOD(clknode_recalc_freq, aw_clk_prediv_mux_recalc), CLKNODEMETHOD_END }; DEFINE_CLASS_1(aw_prediv_mux_clknode, aw_prediv_mux_clknode_class, aw_prediv_mux_clknode_methods, sizeof(struct aw_clk_prediv_mux_sc), clknode_class); int aw_clk_prediv_mux_register(struct clkdom *clkdom, struct aw_clk_prediv_mux_def *clkdef) { struct clknode *clk; struct aw_clk_prediv_mux_sc *sc; clk = clknode_create(clkdom, &aw_prediv_mux_clknode_class, &clkdef->clkdef); if (clk == NULL) return (1); sc = clknode_get_softc(clk); sc->offset = clkdef->offset; sc->mux_shift = clkdef->mux_shift; sc->mux_mask = ((1 << clkdef->mux_width) - 1) << sc->mux_shift; sc->div.shift = clkdef->div.shift; sc->div.mask = ((1 << clkdef->div.width) - 1) << sc->div.shift; sc->div.value = clkdef->div.value; sc->div.cond_shift = clkdef->div.cond_shift; sc->div.cond_mask = ((1 << clkdef->div.cond_width) - 1) << sc->div.shift; sc->div.cond_value = clkdef->div.cond_value; sc->div.flags = clkdef->div.flags; sc->prediv.shift = clkdef->prediv.shift; sc->prediv.mask = ((1 << clkdef->prediv.width) - 1) << sc->prediv.shift; sc->prediv.value = clkdef->prediv.value; sc->prediv.cond_shift = clkdef->prediv.cond_shift; if (clkdef->prediv.cond_width != 0) sc->prediv.cond_mask = ((1 << clkdef->prediv.cond_width) - 1) << sc->prediv.shift; else sc->prediv.cond_mask = clkdef->prediv.cond_mask; sc->prediv.cond_value = clkdef->prediv.cond_value; sc->prediv.flags = clkdef->prediv.flags; sc->flags = clkdef->flags; clknode_register(clkdom, clk); return (0); }
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