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clock_common.c
(4.42 KB)
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clock_common.h
(1.84 KB)
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ti_clk_clkctrl.c
(5.5 KB)
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ti_clk_clkctrl.h
(1.68 KB)
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ti_clk_dpll.c
(8.21 KB)
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ti_clk_dpll.h
(3.17 KB)
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ti_clkctrl.c
(9.36 KB)
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ti_divider_clock.c
(6.9 KB)
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ti_dpll_clock.c
(10.52 KB)
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ti_gate_clock.c
(6.84 KB)
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ti_mux_clock.c
(6.34 KB)
Editing: clock_common.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2020 Oskar Holmlund <oskar.holmlund@ohdata.se> * * 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/conf.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/systm.h> #include <sys/libkern.h> #include <sys/types.h> #include <sys/malloc.h> #include <machine/bus.h> #include <dev/fdt/simplebus.h> #include <dev/extres/clk/clk_mux.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #include "clock_common.h" #if 0 #define DPRINTF(dev, msg...) device_printf(dev, msg) #else #define DPRINTF(dev, msg...) #endif void read_clock_cells(device_t dev, struct clock_cell_info *clk) { ssize_t numbytes_clocks; phandle_t node, parent, *cells; int index, ncells, rv; node = ofw_bus_get_node(dev); /* Get names of parent clocks */ numbytes_clocks = OF_getproplen(node, "clocks"); clk->num_clock_cells = numbytes_clocks / sizeof(cell_t); /* Allocate space and get clock cells content */ /* clock_cells / clock_cells_ncells will be freed in * find_parent_clock_names() */ clk->clock_cells = malloc(numbytes_clocks, M_DEVBUF, M_WAITOK|M_ZERO); clk->clock_cells_ncells = malloc(clk->num_clock_cells*sizeof(uint8_t), M_DEVBUF, M_WAITOK|M_ZERO); OF_getencprop(node, "clocks", clk->clock_cells, numbytes_clocks); /* Count number of clocks */ clk->num_real_clocks = 0; for (index = 0; index < clk->num_clock_cells; index++) { rv = ofw_bus_parse_xref_list_alloc(node, "clocks", "#clock-cells", clk->num_real_clocks, &parent, &ncells, &cells); if (rv != 0) continue; if (cells != NULL) OF_prop_free(cells); clk->clock_cells_ncells[index] = ncells; index += ncells; clk->num_real_clocks++; } } int find_parent_clock_names(device_t dev, struct clock_cell_info *clk, struct clknode_init_def *def) { int index, clock_index, err; bool found_all = true; clk_t parent; /* Figure out names */ for (index = 0, clock_index = 0; index < clk->num_clock_cells; index++) { /* Get name of parent clock */ err = clk_get_by_ofw_index(dev, 0, clock_index, &parent); if (err != 0) { clock_index++; found_all = false; DPRINTF(dev, "Failed to find clock_cells[%d]=0x%x\n", index, clk->clock_cells[index]); index += clk->clock_cells_ncells[index]; continue; } def->parent_names[clock_index] = clk_get_name(parent); clk_release(parent); DPRINTF(dev, "Found parent clock[%d/%d]: %s\n", clock_index, clk->num_real_clocks, def->parent_names[clock_index]); clock_index++; index += clk->clock_cells_ncells[index]; } if (!found_all) { return 1; } free(clk->clock_cells, M_DEVBUF); free(clk->clock_cells_ncells, M_DEVBUF); return 0; } void create_clkdef(device_t dev, struct clock_cell_info *clk, struct clknode_init_def *def) { def->id = 1; clk_parse_ofw_clk_name(dev, ofw_bus_get_node(dev), &def->name); DPRINTF(dev, "node name: %s\n", def->name); def->parent_cnt = clk->num_real_clocks; def->parent_names = malloc(clk->num_real_clocks*sizeof(char *), M_OFWPROP, M_WAITOK); } void free_clkdef(struct clknode_init_def *def) { OF_prop_free(__DECONST(char *, def->name)); OF_prop_free(def->parent_names); }
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