2 * Copyright (c) 2015 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
35 #include <sys/kernel.h>
37 #include <dev/fdt/fdt_common.h>
38 #include <dev/ofw/openfirm.h>
39 #include <dev/ofw/ofw_bus.h>
40 #include <dev/ofw/ofw_bus_subr.h>
42 #include <machine/bus.h>
43 #include <machine/fdt.h>
45 #include <arm/ti/ti_prcm.h>
46 #include <arm/ti/ti_hwmods.h>
53 struct hwmod ti_hwmods[] = {
75 {"epwmss0", PWMSS0_CLK},
76 {"epwmss1", PWMSS1_CLK},
77 {"epwmss2", PWMSS2_CLK},
82 {"timer1", TIMER1_CLK},
83 {"timer2", TIMER2_CLK},
84 {"timer3", TIMER3_CLK},
85 {"timer4", TIMER4_CLK},
86 {"timer5", TIMER5_CLK},
87 {"timer6", TIMER6_CLK},
88 {"timer7", TIMER7_CLK},
102 ti_hwmods_get_clock(device_t dev)
111 if ((node = ofw_bus_get_node(dev)) == 0)
112 return (INVALID_CLK_IDENT);
114 if ((len = OF_getprop_alloc(node, "ti,hwmods", 1, (void**)&name)) <= 0)
115 return (INVALID_CLK_IDENT);
119 clk = INVALID_CLK_IDENT;
120 while ((len > 0) && (clk == INVALID_CLK_IDENT)) {
121 for (hw = ti_hwmods; hw->name != NULL; ++hw) {
122 if (strcmp(hw->name, name) == 0) {
128 /* Slide to the next sub-string. */
129 l = strlen(name) + 1;
135 device_printf(dev, "WARNING: more than one ti,hwmod \n");
141 int ti_hwmods_contains(device_t dev, const char *hwmod)
149 if ((node = ofw_bus_get_node(dev)) == 0)
152 if ((len = OF_getprop_alloc(node, "ti,hwmods", 1, (void**)&name)) <= 0)
159 if (strcmp(name, hwmod) == 0) {
164 /* Slide to the next sub-string. */
165 l = strlen(name) + 1;
176 ti_hwmods_get_unit(device_t dev, const char *hwmod)
179 int l, len, hwmodlen, result;
183 if ((node = ofw_bus_get_node(dev)) == 0)
186 if ((len = OF_getprop_alloc(node, "ti,hwmods", 1, (void**)&name)) <= 0)
190 hwmodlen = strlen(hwmod);
193 if (strncmp(name, hwmod, hwmodlen) == 0) {
194 result = (int)strtoul(name + hwmodlen, NULL, 10);
197 /* Slide to the next sub-string. */
198 l = strlen(name) + 1;