1 /* 2 * RX62N Microcontroller 3 * 4 * Datasheet: RX62N Group, RX621 Group User's Manual: Hardware 5 * (Rev.1.40 R01UH0033EJ0140) 6 * 7 * Copyright (c) 2019 Yoshinori Sato 8 * Copyright (c) 2020 Philippe Mathieu-Daudé 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms and conditions of the GNU General Public License, 12 * version 2 or later, as published by the Free Software Foundation. 13 * 14 * This program is distributed in the hope it will be useful, but WITHOUT 15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 17 * more details. 18 * 19 * You should have received a copy of the GNU General Public License along with 20 * this program. If not, see <http://www.gnu.org/licenses/>. 21 */ 22 23 #include "qemu/osdep.h" 24 #include "qapi/error.h" 25 #include "qemu/error-report.h" 26 #include "hw/hw.h" 27 #include "hw/rx/rx62n.h" 28 #include "hw/loader.h" 29 #include "hw/sysbus.h" 30 #include "hw/qdev-properties.h" 31 #include "sysemu/sysemu.h" 32 #include "sysemu/qtest.h" 33 #include "cpu.h" 34 #include "qom/object.h" 35 36 /* 37 * RX62N Internal Memory 38 */ 39 #define RX62N_IRAM_BASE 0x00000000 40 #define RX62N_DFLASH_BASE 0x00100000 41 #define RX62N_CFLASH_BASE 0xfff80000 42 43 /* 44 * RX62N Peripheral Address 45 * See users manual section 5 46 */ 47 #define RX62N_ICU_BASE 0x00087000 48 #define RX62N_TMR_BASE 0x00088200 49 #define RX62N_CMT_BASE 0x00088000 50 #define RX62N_SCI_BASE 0x00088240 51 52 /* 53 * RX62N Peripheral IRQ 54 * See users manual section 11 55 */ 56 #define RX62N_TMR_IRQ 174 57 #define RX62N_CMT_IRQ 28 58 #define RX62N_SCI_IRQ 214 59 60 #define RX62N_XTAL_MIN_HZ (8 * 1000 * 1000) 61 #define RX62N_XTAL_MAX_HZ (14 * 1000 * 1000) 62 #define RX62N_PCLK_MAX_HZ (50 * 1000 * 1000) 63 64 struct RX62NClass { 65 /*< private >*/ 66 DeviceClass parent_class; 67 /*< public >*/ 68 const char *name; 69 uint64_t ram_size; 70 uint64_t rom_flash_size; 71 uint64_t data_flash_size; 72 }; 73 typedef struct RX62NClass RX62NClass; 74 75 DECLARE_CLASS_CHECKERS(RX62NClass, RX62N_MCU, 76 TYPE_RX62N_MCU) 77 78 /* 79 * IRQ -> IPR mapping table 80 * 0x00 - 0x91: IPR no (IPR00 to IPR91) 81 * 0xff: IPR not assigned 82 * See "11.3.1 Interrupt Vector Table" in hardware manual. 83 */ 84 static const uint8_t ipr_table[NR_IRQS] = { 85 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 86 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 15 */ 87 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0x02, 88 0xff, 0xff, 0xff, 0x03, 0x04, 0x05, 0x06, 0x07, /* 31 */ 89 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 90 0x10, 0x11, 0x12, 0x13, 0x14, 0x14, 0x14, 0x14, /* 47 */ 91 0x15, 0x15, 0x15, 0x15, 0xff, 0xff, 0xff, 0xff, 92 0x18, 0x18, 0x18, 0x18, 0x18, 0x1d, 0x1e, 0x1f, /* 63 */ 93 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 94 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 79 */ 95 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 96 0xff, 0xff, 0x3a, 0x3b, 0x3c, 0xff, 0xff, 0xff, /* 95 */ 97 0x40, 0xff, 0x44, 0x45, 0xff, 0xff, 0x48, 0xff, 98 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 111 */ 99 0xff, 0xff, 0x51, 0x51, 0x51, 0x51, 0x52, 0x52, 100 0x52, 0x53, 0x53, 0x54, 0x54, 0x55, 0x55, 0x56, /* 127 */ 101 0x56, 0x57, 0x57, 0x57, 0x57, 0x58, 0x59, 0x59, 102 0x59, 0x59, 0x5a, 0x5b, 0x5b, 0x5b, 0x5c, 0x5c, /* 143 */ 103 0x5c, 0x5c, 0x5d, 0x5d, 0x5d, 0x5e, 0x5e, 0x5f, 104 0x5f, 0x60, 0x60, 0x61, 0x61, 0x62, 0x62, 0x62, /* 159 */ 105 0x62, 0x63, 0x64, 0x64, 0x64, 0x64, 0x65, 0x66, 106 0x66, 0x66, 0x67, 0x67, 0x67, 0x67, 0x68, 0x68, /* 175 */ 107 0x68, 0x69, 0x69, 0x69, 0x6a, 0x6a, 0x6a, 0x6b, 108 0x6b, 0x6b, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 191 */ 109 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x70, 0x71, 110 0x72, 0x73, 0x74, 0x75, 0xff, 0xff, 0xff, 0xff, /* 207 */ 111 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, 0x80, 112 0x80, 0x80, 0x81, 0x81, 0x81, 0x81, 0x82, 0x82, /* 223 */ 113 0x82, 0x82, 0x83, 0x83, 0x83, 0x83, 0xff, 0xff, 114 0xff, 0xff, 0x85, 0x85, 0x85, 0x85, 0x86, 0x86, /* 239 */ 115 0x86, 0x86, 0xff, 0xff, 0xff, 0xff, 0x88, 0x89, 116 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, /* 255 */ 117 }; 118 119 /* 120 * Level triggerd IRQ list 121 * Not listed IRQ is Edge trigger. 122 * See "11.3.1 Interrupt Vector Table" in hardware manual. 123 */ 124 static const uint8_t levelirq[] = { 125 16, 21, 32, 44, 47, 48, 51, 64, 65, 66, 126 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 127 77, 78, 79, 90, 91, 170, 171, 172, 173, 214, 128 217, 218, 221, 222, 225, 226, 229, 234, 237, 238, 129 241, 246, 249, 250, 253, 130 }; 131 132 static void register_icu(RX62NState *s) 133 { 134 int i; 135 SysBusDevice *icu; 136 137 object_initialize_child(OBJECT(s), "icu", &s->icu, TYPE_RX_ICU); 138 icu = SYS_BUS_DEVICE(&s->icu); 139 qdev_prop_set_uint32(DEVICE(icu), "len-ipr-map", NR_IRQS); 140 for (i = 0; i < NR_IRQS; i++) { 141 char propname[32]; 142 snprintf(propname, sizeof(propname), "ipr-map[%d]", i); 143 qdev_prop_set_uint32(DEVICE(icu), propname, ipr_table[i]); 144 } 145 qdev_prop_set_uint32(DEVICE(icu), "len-trigger-level", 146 ARRAY_SIZE(levelirq)); 147 for (i = 0; i < ARRAY_SIZE(levelirq); i++) { 148 char propname[32]; 149 snprintf(propname, sizeof(propname), "trigger-level[%d]", i); 150 qdev_prop_set_uint32(DEVICE(icu), propname, levelirq[i]); 151 } 152 153 for (i = 0; i < NR_IRQS; i++) { 154 s->irq[i] = qdev_get_gpio_in(DEVICE(icu), i); 155 } 156 sysbus_realize(icu, &error_abort); 157 sysbus_connect_irq(icu, 0, qdev_get_gpio_in(DEVICE(&s->cpu), RX_CPU_IRQ)); 158 sysbus_connect_irq(icu, 1, qdev_get_gpio_in(DEVICE(&s->cpu), RX_CPU_FIR)); 159 sysbus_connect_irq(icu, 2, s->irq[SWI]); 160 sysbus_mmio_map(SYS_BUS_DEVICE(icu), 0, RX62N_ICU_BASE); 161 } 162 163 static void register_tmr(RX62NState *s, int unit) 164 { 165 SysBusDevice *tmr; 166 int i, irqbase; 167 168 object_initialize_child(OBJECT(s), "tmr[*]", 169 &s->tmr[unit], TYPE_RENESAS_TMR); 170 tmr = SYS_BUS_DEVICE(&s->tmr[unit]); 171 qdev_prop_set_uint64(DEVICE(tmr), "input-freq", s->pclk_freq_hz); 172 sysbus_realize(tmr, &error_abort); 173 174 irqbase = RX62N_TMR_IRQ + TMR_NR_IRQ * unit; 175 for (i = 0; i < TMR_NR_IRQ; i++) { 176 sysbus_connect_irq(tmr, i, s->irq[irqbase + i]); 177 } 178 sysbus_mmio_map(tmr, 0, RX62N_TMR_BASE + unit * 0x10); 179 } 180 181 static void register_cmt(RX62NState *s, int unit) 182 { 183 SysBusDevice *cmt; 184 int i, irqbase; 185 186 object_initialize_child(OBJECT(s), "cmt[*]", 187 &s->cmt[unit], TYPE_RENESAS_CMT); 188 cmt = SYS_BUS_DEVICE(&s->cmt[unit]); 189 qdev_prop_set_uint64(DEVICE(cmt), "input-freq", s->pclk_freq_hz); 190 sysbus_realize(cmt, &error_abort); 191 192 irqbase = RX62N_CMT_IRQ + CMT_NR_IRQ * unit; 193 for (i = 0; i < CMT_NR_IRQ; i++) { 194 sysbus_connect_irq(cmt, i, s->irq[irqbase + i]); 195 } 196 sysbus_mmio_map(cmt, 0, RX62N_CMT_BASE + unit * 0x10); 197 } 198 199 static void register_sci(RX62NState *s, int unit) 200 { 201 SysBusDevice *sci; 202 int i, irqbase; 203 204 object_initialize_child(OBJECT(s), "sci[*]", 205 &s->sci[unit], TYPE_RENESAS_SCI); 206 sci = SYS_BUS_DEVICE(&s->sci[unit]); 207 qdev_prop_set_chr(DEVICE(sci), "chardev", serial_hd(unit)); 208 qdev_prop_set_uint64(DEVICE(sci), "input-freq", s->pclk_freq_hz); 209 sysbus_realize(sci, &error_abort); 210 211 irqbase = RX62N_SCI_IRQ + SCI_NR_IRQ * unit; 212 for (i = 0; i < SCI_NR_IRQ; i++) { 213 sysbus_connect_irq(sci, i, s->irq[irqbase + i]); 214 } 215 sysbus_mmio_map(sci, 0, RX62N_SCI_BASE + unit * 0x08); 216 } 217 218 static void rx62n_realize(DeviceState *dev, Error **errp) 219 { 220 RX62NState *s = RX62N_MCU(dev); 221 RX62NClass *rxc = RX62N_MCU_GET_CLASS(dev); 222 223 if (s->xtal_freq_hz == 0) { 224 error_setg(errp, "\"xtal-frequency-hz\" property must be provided."); 225 return; 226 } 227 /* XTAL range: 8-14 MHz */ 228 if (s->xtal_freq_hz < RX62N_XTAL_MIN_HZ 229 || s->xtal_freq_hz > RX62N_XTAL_MAX_HZ) { 230 error_setg(errp, "\"xtal-frequency-hz\" property in incorrect range."); 231 return; 232 } 233 /* Use a 4x fixed multiplier */ 234 s->pclk_freq_hz = 4 * s->xtal_freq_hz; 235 /* PCLK range: 8-50 MHz */ 236 assert(s->pclk_freq_hz <= RX62N_PCLK_MAX_HZ); 237 238 memory_region_init_ram(&s->iram, OBJECT(dev), "iram", 239 rxc->ram_size, &error_abort); 240 memory_region_add_subregion(s->sysmem, RX62N_IRAM_BASE, &s->iram); 241 memory_region_init_rom(&s->d_flash, OBJECT(dev), "flash-data", 242 rxc->data_flash_size, &error_abort); 243 memory_region_add_subregion(s->sysmem, RX62N_DFLASH_BASE, &s->d_flash); 244 memory_region_init_rom(&s->c_flash, OBJECT(dev), "flash-code", 245 rxc->rom_flash_size, &error_abort); 246 memory_region_add_subregion(s->sysmem, RX62N_CFLASH_BASE, &s->c_flash); 247 248 if (!s->kernel) { 249 if (bios_name) { 250 rom_add_file_fixed(bios_name, RX62N_CFLASH_BASE, 0); 251 } else if (!qtest_enabled()) { 252 error_report("No bios or kernel specified"); 253 exit(1); 254 } 255 } 256 257 /* Initialize CPU */ 258 object_initialize_child(OBJECT(s), "cpu", &s->cpu, TYPE_RX62N_CPU); 259 qdev_realize(DEVICE(&s->cpu), NULL, &error_abort); 260 261 register_icu(s); 262 s->cpu.env.ack = qdev_get_gpio_in_named(DEVICE(&s->icu), "ack", 0); 263 register_tmr(s, 0); 264 register_tmr(s, 1); 265 register_cmt(s, 0); 266 register_cmt(s, 1); 267 register_sci(s, 0); 268 } 269 270 static Property rx62n_properties[] = { 271 DEFINE_PROP_LINK("main-bus", RX62NState, sysmem, TYPE_MEMORY_REGION, 272 MemoryRegion *), 273 DEFINE_PROP_BOOL("load-kernel", RX62NState, kernel, false), 274 DEFINE_PROP_UINT32("xtal-frequency-hz", RX62NState, xtal_freq_hz, 0), 275 DEFINE_PROP_END_OF_LIST(), 276 }; 277 278 static void rx62n_class_init(ObjectClass *klass, void *data) 279 { 280 DeviceClass *dc = DEVICE_CLASS(klass); 281 282 dc->realize = rx62n_realize; 283 device_class_set_props(dc, rx62n_properties); 284 } 285 286 static void r5f562n7_class_init(ObjectClass *oc, void *data) 287 { 288 RX62NClass *rxc = RX62N_MCU_CLASS(oc); 289 290 rxc->ram_size = 64 * KiB; 291 rxc->rom_flash_size = 384 * KiB; 292 rxc->data_flash_size = 32 * KiB; 293 }; 294 295 static void r5f562n8_class_init(ObjectClass *oc, void *data) 296 { 297 RX62NClass *rxc = RX62N_MCU_CLASS(oc); 298 299 rxc->ram_size = 96 * KiB; 300 rxc->rom_flash_size = 512 * KiB; 301 rxc->data_flash_size = 32 * KiB; 302 }; 303 304 static const TypeInfo rx62n_types[] = { 305 { 306 .name = TYPE_R5F562N7_MCU, 307 .parent = TYPE_RX62N_MCU, 308 .class_init = r5f562n7_class_init, 309 }, { 310 .name = TYPE_R5F562N8_MCU, 311 .parent = TYPE_RX62N_MCU, 312 .class_init = r5f562n8_class_init, 313 }, { 314 .name = TYPE_RX62N_MCU, 315 .parent = TYPE_DEVICE, 316 .instance_size = sizeof(RX62NState), 317 .class_size = sizeof(RX62NClass), 318 .class_init = rx62n_class_init, 319 .abstract = true, 320 } 321 }; 322 323 DEFINE_TYPES(rx62n_types) 324