1 /* $NetBSD: hd64465.c,v 1.12 2006/03/04 02:26:33 uwe Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: hd64465.c,v 1.12 2006/03/04 02:26:33 uwe Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/boot_flag.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 #include <machine/debug.h> 50 51 #include <sh3/intcreg.h> 52 #include <hpcsh/dev/hd64465/hd64465var.h> 53 #include <hpcsh/dev/hd64465/hd64465reg.h> 54 #include <hpcsh/dev/hd64465/hd64465intcreg.h> 55 56 /* HD64465 modules. */ 57 STATIC const struct hd64465_module { 58 const char *name; 59 } hd64465_modules[] = { 60 [HD64465_MODULE_PS2IF] = { "hd64465ps2if" }, 61 [HD64465_MODULE_PCMCIA] = { "hd64465pcmcia" }, 62 [HD64465_MODULE_AFE] = { "hd64465afe" }, 63 [HD64465_MODULE_GPIO] = { "hd64465gpio" }, 64 [HD64465_MODULE_KBC] = { "hd64465kbc" }, 65 [HD64465_MODULE_IRDA] = { "hd64465irda" }, 66 [HD64465_MODULE_UART] = { "hd64465uart" }, 67 [HD64465_MODULE_PARALEL] = { "hd64465paralel" }, 68 [HD64465_MODULE_CODEC] = { "hd64465codec" }, 69 [HD64465_MODULE_OHCI] = { "hd64465ohci" }, 70 [HD64465_MODULE_ADC] = { "hd64465adc" } 71 }; 72 #define HD64465_NMODULE \ 73 (sizeof hd64465_modules / sizeof(struct hd64465_module)) 74 75 STATIC int hd64465_match(struct device *, struct cfdata *, void *); 76 STATIC void hd64465_attach(struct device *, struct device *, void *); 77 STATIC int hd64465_print(void *, const char *); 78 #ifdef DEBUG 79 STATIC void hd64465_info(void); 80 #endif 81 82 CFATTACH_DECL(hd64465if, sizeof(struct device), 83 hd64465_match, hd64465_attach, NULL, NULL); 84 85 int 86 hd64465_match(struct device *parent, struct cfdata *cf, void *aux) 87 { 88 89 if (strcmp("hd64465if", cf->cf_name)) 90 return (0); 91 92 if (hd64465_reg_read_2(HD64465_SDIDR) != 0x8122) { 93 /* not HD64465 */ 94 return (0); 95 } 96 97 return (1); 98 } 99 100 void 101 hd64465_attach(struct device *parent, struct device *self, void *aux) 102 { 103 const struct hd64465_module *module; 104 struct hd64465_attach_args ha; 105 uint16_t r; 106 int i; 107 108 printf("\n"); 109 #ifdef DEBUG 110 if (bootverbose) 111 hd64465_info(); 112 #endif 113 114 r = hd64465_reg_read_2(HD64465_SRR); 115 printf("%s: HITACHI HD64465 rev. %d.%d\n", self->dv_xname, 116 (r >> 8) & 0xff, r & 0xff); 117 118 /* Mask all interrupt */ 119 hd64465_reg_write_2(HD64465_NIMR, 0xffff); 120 /* Edge trigger mode to clear pending interrupt. */ 121 hd64465_reg_write_2(HD64465_NITR, 0xffff); 122 /* Clear pending interrupt */ 123 hd64465_reg_write_2(HD64465_NIRR, 0x0000); 124 125 /* Attach all sub modules */ 126 for (i = 0, module = hd64465_modules; i < HD64465_NMODULE; 127 i++, module++) { 128 if (module->name == 0) 129 continue; 130 ha.ha_module_id = i; 131 config_found(self, &ha, hd64465_print); 132 } 133 } 134 135 int 136 hd64465_print(void *aux, const char *pnp) 137 { 138 struct hd64465_attach_args *ha = aux; 139 140 if (pnp) 141 aprint_normal("%s at %s", 142 hd64465_modules[ha->ha_module_id].name, pnp); 143 144 return (UNCONF); 145 } 146 147 void * 148 hd64465_intr_establish(int irq, int mode, int level, 149 int (*func)(void *), void *arg) 150 { 151 uint16_t r; 152 int s; 153 154 s = splhigh(); 155 /* Trigger type */ 156 r = hd64465_reg_read_2(HD64465_NITR); 157 switch (mode) { 158 case IST_PULSE: 159 /* FALLTHROUGH */ 160 case IST_EDGE: 161 r |= irq; 162 break; 163 case IST_LEVEL: 164 r &= ~irq; 165 break; 166 } 167 hd64465_reg_write_2(HD64465_NITR, r); 168 169 hd6446x_intr_establish(irq, mode, level, func, arg); 170 splx(s); 171 172 return (void *)irq; 173 } 174 175 void 176 hd64465_intr_disestablish(void *handle) 177 { 178 179 hd6446x_intr_disestablish(handle); 180 } 181 182 /* For the sake of Windows CE reboot clearly. */ 183 void 184 hd64465_shutdown() 185 { 186 187 /* Enable all interrupt */ 188 hd64465_reg_write_2(HD64465_NIMR, 0x0000); 189 190 /* Level trigger mode */ 191 hd64465_reg_write_2(HD64465_NITR, 0x0000); 192 } 193 194 void 195 hd64465_info() 196 { 197 uint16_t r; 198 199 dbg_bit_print_msg(_reg_read_2(SH4_ICR), "SH4_ICR"); 200 r = hd64465_reg_read_2(HD64465_NIMR); 201 dbg_bit_print_msg(r, "NIMR"); 202 r = hd64465_reg_read_2(HD64465_NIRR); 203 dbg_bit_print_msg(r, "NIRR"); 204 r = hd64465_reg_read_2(HD64465_NITR); 205 dbg_bit_print_msg(r, "NITR"); 206 } 207