1 /* $NetBSD: sscom_s3c2410.c,v 1.6 2012/10/27 17:17:40 chs Exp $ */ 2 3 /* 4 * Copyright (c) 2002, 2003 Fujitsu Component Limited 5 * Copyright (c) 2002, 2003 Genetec Corporation 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of The Fujitsu Component Limited nor the name of 17 * Genetec corporation may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC 21 * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 22 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC 25 * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: sscom_s3c2410.c,v 1.6 2012/10/27 17:17:40 chs Exp $"); 37 38 #include "opt_sscom.h" 39 #include "opt_ddb.h" 40 #include "opt_kgdb.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/ioctl.h> 45 #include <sys/select.h> 46 #include <sys/tty.h> 47 #include <sys/proc.h> 48 #include <sys/conf.h> 49 #include <sys/file.h> 50 #include <sys/uio.h> 51 #include <sys/kernel.h> 52 #include <sys/syslog.h> 53 #include <sys/types.h> 54 #include <sys/device.h> 55 #include <sys/malloc.h> 56 #include <sys/timepps.h> 57 #include <sys/vnode.h> 58 59 #include <machine/intr.h> 60 #include <sys/bus.h> 61 62 #include <arm/s3c2xx0/s3c2410reg.h> 63 #include <arm/s3c2xx0/s3c2410var.h> 64 #include <arm/s3c2xx0/sscom_var.h> 65 #include <sys/termios.h> 66 67 static int sscom_match(device_t, cfdata_t, void *); 68 static void sscom_attach(device_t, device_t, void *); 69 70 CFATTACH_DECL_NEW(sscom, sizeof(struct sscom_softc), sscom_match, 71 sscom_attach, NULL, NULL); 72 73 const struct sscom_uart_info s3c2410_uart_config[] = { 74 /* UART 0 */ 75 { 76 0, 77 S3C2410_INT_TXD0, 78 S3C2410_INT_RXD0, 79 S3C2410_INT_ERR0, 80 S3C2410_UART_BASE(0), 81 }, 82 /* UART 1 */ 83 { 84 1, 85 S3C2410_INT_TXD1, 86 S3C2410_INT_RXD1, 87 S3C2410_INT_ERR1, 88 S3C2410_UART_BASE(1), 89 }, 90 /* UART 2 */ 91 { 92 2, 93 S3C2410_INT_TXD2, 94 S3C2410_INT_RXD2, 95 S3C2410_INT_ERR2, 96 S3C2410_UART_BASE(2), 97 }, 98 }; 99 100 static int 101 sscom_match(device_t parent, cfdata_t cf, void *aux) 102 { 103 struct s3c2xx0_attach_args *sa = aux; 104 int unit = sa->sa_index; 105 106 return unit == 0 || unit == 1; 107 } 108 109 static void 110 sscom_attach(device_t parent, device_t self, void *aux) 111 { 112 struct sscom_softc *sc = device_private(self); 113 struct s3c2xx0_attach_args *sa = aux; 114 int unit = sa->sa_index; 115 bus_addr_t iobase = s3c2410_uart_config[unit].iobase; 116 117 printf( ": UART%d addr=%lx", sa->sa_index, iobase ); 118 119 sc->sc_dev = self; 120 sc->sc_iot = s3c2xx0_softc->sc_iot; 121 sc->sc_unit = unit; 122 sc->sc_frequency = s3c2xx0_softc->sc_pclk; 123 124 sc->sc_rx_irqno = s3c2410_uart_config[sa->sa_index].rx_int; 125 sc->sc_tx_irqno = s3c2410_uart_config[sa->sa_index].tx_int; 126 127 if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) { 128 printf( ": failed to map registers\n" ); 129 return; 130 } 131 132 printf("\n"); 133 134 s3c24x0_intr_establish(s3c2410_uart_config[unit].tx_int, 135 IPL_SERIAL, IST_LEVEL, sscomtxintr, sc); 136 s3c24x0_intr_establish(s3c2410_uart_config[unit].rx_int, 137 IPL_SERIAL, IST_LEVEL, sscomrxintr, sc); 138 s3c24x0_intr_establish(s3c2410_uart_config[unit].err_int, 139 IPL_SERIAL, IST_LEVEL, sscomrxintr, sc); 140 sscom_disable_txrxint(sc); 141 142 sscom_attach_subr(sc); 143 } 144 145 146 147 int 148 s3c2410_sscom_cnattach(bus_space_tag_t iot, int unit, int rate, 149 int frequency, tcflag_t cflag) 150 { 151 return sscom_cnattach(iot, s3c2410_uart_config + unit, 152 rate, frequency, cflag); 153 } 154 155 #ifdef KGDB 156 int 157 s3c2410_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate, 158 int frequency, tcflag_t cflag) 159 { 160 return sscom_kgdb_attach(iot, s3c2410_uart_config + unit, 161 rate, frequency, cflag); 162 } 163 #endif /* KGDB */ 164