gtmr_fdt.c revision 1.5.2.2
1 1.5.2.2 skrll /* $NetBSD: gtmr_fdt.c,v 1.5.2.2 2017/08/28 17:51:30 skrll Exp $ */ 2 1.5.2.2 skrll 3 1.5.2.2 skrll /*- 4 1.5.2.2 skrll * Copyright (c) 2017 Jared McNeill <jmcneill (at) invisible.ca> 5 1.5.2.2 skrll * All rights reserved. 6 1.5.2.2 skrll * 7 1.5.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.5.2.2 skrll * modification, are permitted provided that the following conditions 9 1.5.2.2 skrll * are met: 10 1.5.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.5.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.5.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.5.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.5.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.5.2.2 skrll * 16 1.5.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.5.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.5.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.5.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.5.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.5.2.2 skrll * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.5.2.2 skrll * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.5.2.2 skrll * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.5.2.2 skrll * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.5.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.5.2.2 skrll * SUCH DAMAGE. 27 1.5.2.2 skrll */ 28 1.5.2.2 skrll 29 1.5.2.2 skrll #include <sys/cdefs.h> 30 1.5.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: gtmr_fdt.c,v 1.5.2.2 2017/08/28 17:51:30 skrll Exp $"); 31 1.5.2.2 skrll 32 1.5.2.2 skrll #include <sys/param.h> 33 1.5.2.2 skrll #include <sys/bus.h> 34 1.5.2.2 skrll #include <sys/device.h> 35 1.5.2.2 skrll #include <sys/intr.h> 36 1.5.2.2 skrll #include <sys/systm.h> 37 1.5.2.2 skrll #include <sys/kernel.h> 38 1.5.2.2 skrll #include <sys/kmem.h> 39 1.5.2.2 skrll 40 1.5.2.2 skrll #include <arm/cortex/gtmr_intr.h> 41 1.5.2.2 skrll #include <arm/cortex/mpcore_var.h> 42 1.5.2.2 skrll #include <arm/cortex/gtmr_var.h> 43 1.5.2.2 skrll 44 1.5.2.2 skrll #include <dev/fdt/fdtvar.h> 45 1.5.2.2 skrll #include <arm/fdt/arm_fdtvar.h> 46 1.5.2.2 skrll 47 1.5.2.2 skrll static int gtmr_fdt_match(device_t, cfdata_t, void *); 48 1.5.2.2 skrll static void gtmr_fdt_attach(device_t, device_t, void *); 49 1.5.2.2 skrll 50 1.5.2.2 skrll static void gtmr_fdt_cpu_hatch(void *, struct cpu_info *); 51 1.5.2.2 skrll 52 1.5.2.2 skrll CFATTACH_DECL_NEW(gtmr_fdt, 0, gtmr_fdt_match, gtmr_fdt_attach, NULL, NULL); 53 1.5.2.2 skrll 54 1.5.2.2 skrll static int 55 1.5.2.2 skrll gtmr_fdt_match(device_t parent, cfdata_t cf, void *aux) 56 1.5.2.2 skrll { 57 1.5.2.2 skrll const char * const compatible[] = { 58 1.5.2.2 skrll "arm,armv7-timer", 59 1.5.2.2 skrll "arm,armv8-timer", 60 1.5.2.2 skrll NULL 61 1.5.2.2 skrll }; 62 1.5.2.2 skrll struct fdt_attach_args * const faa = aux; 63 1.5.2.2 skrll 64 1.5.2.2 skrll return of_compatible(faa->faa_phandle, compatible) >= 0; 65 1.5.2.2 skrll } 66 1.5.2.2 skrll 67 1.5.2.2 skrll static void 68 1.5.2.2 skrll gtmr_fdt_attach(device_t parent, device_t self, void *aux) 69 1.5.2.2 skrll { 70 1.5.2.2 skrll aprint_naive("\n"); 71 1.5.2.2 skrll aprint_normal(": Generic Timer\n"); 72 1.5.2.2 skrll 73 1.5.2.2 skrll struct mpcore_attach_args mpcaa = { 74 1.5.2.2 skrll .mpcaa_name = "armgtmr", 75 1.5.2.2 skrll .mpcaa_irq = IRQ_GTMR_PPI_VTIMER 76 1.5.2.2 skrll }; 77 1.5.2.2 skrll 78 1.5.2.2 skrll config_found(self, &mpcaa, NULL); 79 1.5.2.2 skrll 80 1.5.2.2 skrll arm_fdt_cpu_hatch_register(self, gtmr_fdt_cpu_hatch); 81 1.5.2.2 skrll arm_fdt_timer_register(gtmr_cpu_initclocks); 82 1.5.2.2 skrll } 83 1.5.2.2 skrll 84 1.5.2.2 skrll static void 85 1.5.2.2 skrll gtmr_fdt_cpu_hatch(void *priv, struct cpu_info *ci) 86 1.5.2.2 skrll { 87 1.5.2.2 skrll gtmr_init_cpu_clock(ci); 88 1.5.2.2 skrll } 89
Indexes created Thu Oct 23 22:10:10 GMT 2025