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/rx/rx62n.h" 27 #include "hw/loader.h" 28 #include "hw/sysbus.h" 29 #include "hw/qdev-properties.h" 30 #include "sysemu/sysemu.h" 31 #include "qom/object.h" 32 33 /* 34 * RX62N Internal Memory 35 */ 36 #define RX62N_IRAM_BASE 0x00000000 37 #define RX62N_DFLASH_BASE 0x00100000 38 #define RX62N_CFLASH_BASE 0xfff80000 39 40 /* 41 * RX62N Peripheral Address 42 * See users manual section 5 43 */ 44 #define RX62N_ICU_BASE 0x00087000 45 #define RX62N_TMR_BASE 0x00088200 46 #define RX62N_CMT_BASE 0x00088000 47 #define RX62N_SCI_BASE 0x00088240 48 49 /* 50 * RX62N Peripheral IRQ 51 * See users manual section 11 52 */ 53 #define RX62N_TMR_IRQ 174 54 #define RX62N_CMT_IRQ 28 55 #define RX62N_SCI_IRQ 214 56 57 #define RX62N_XTAL_MIN_HZ (8 * 1000 * 1000) 58 #define RX62N_XTAL_MAX_HZ (14 * 1000 * 1000) 59 #define RX62N_PCLK_MAX_HZ (50 * 1000 * 1000) 60 61 struct RX62NClass { 62 /*< private >*/ 63 DeviceClass parent_class; 64 /*< public >*/ 65 const char *name; 66 uint64_t ram_size; 67 uint64_t rom_flash_size; 68 uint64_t data_flash_size; 69 }; 70 typedef struct RX62NClass RX62NClass; 71 72 DECLARE_CLASS_CHECKERS(RX62NClass, RX62N_MCU, 73 TYPE_RX62N_MCU) 74 75 /* 76 * IRQ -> IPR mapping table 77 * 0x00 - 0x91: IPR no (IPR00 to IPR91) 78 * 0xff: IPR not assigned 79 * See "11.3.1 Interrupt Vector Table" in hardware manual. 80 */ 81 static const uint8_t ipr_table[NR_IRQS] = { 82 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 83 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 15 */ 84 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0xff, 0x02, 85 0xff, 0xff, 0xff, 0x03, 0x04, 0x05, 0x06, 0x07, /* 31 */ 86 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 87 0x10, 0x11, 0x12, 0x13, 0x14, 0x14, 0x14, 0x14, /* 47 */ 88 0x15, 0x15, 0x15, 0x15, 0xff, 0xff, 0xff, 0xff, 89 0x18, 0x18, 0x18, 0x18, 0x18, 0x1d, 0x1e, 0x1f, /* 63 */ 90 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 91 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 79 */ 92 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 93 0xff, 0xff, 0x3a, 0x3b, 0x3c, 0xff, 0xff, 0xff, /* 95 */ 94 0x40, 0xff, 0x44, 0x45, 0xff, 0xff, 0x48, 0xff, 95 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 111 */ 96 0xff, 0xff, 0x51, 0x51, 0x51, 0x51, 0x52, 0x52, 97 0x52, 0x53, 0x53, 0x54, 0x54, 0x55, 0x55, 0x56, /* 127 */ 98 0x56, 0x57, 0x57, 0x57, 0x57, 0x58, 0x59, 0x59, 99 0x59, 0x59, 0x5a, 0x5b, 0x5b, 0x5b, 0x5c, 0x5c, /* 143 */ 100 0x5c, 0x5c, 0x5d, 0x5d, 0x5d, 0x5e, 0x5e, 0x5f, 101 0x5f, 0x60, 0x60, 0x61, 0x61, 0x62, 0x62, 0x62, /* 159 */ 102 0x62, 0x63, 0x64, 0x64, 0x64, 0x64, 0x65, 0x66, 103 0x66, 0x66, 0x67, 0x67, 0x67, 0x67, 0x68, 0x68, /* 175 */ 104 0x68, 0x69, 0x69, 0x69, 0x6a, 0x6a, 0x6a, 0x6b, 105 0x6b, 0x6b, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 191 */ 106 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x70, 0x71, 107 0x72, 0x73, 0x74, 0x75, 0xff, 0xff, 0xff, 0xff, /* 207 */ 108 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, 0x80, 109 0x80, 0x80, 0x81, 0x81, 0x81, 0x81, 0x82, 0x82, /* 223 */ 110 0x82, 0x82, 0x83, 0x83, 0x83, 0x83, 0xff, 0xff, 111 0xff, 0xff, 0x85, 0x85, 0x85, 0x85, 0x86, 0x86, /* 239 */ 112 0x86, 0x86, 0xff, 0xff, 0xff, 0xff, 0x88, 0x89, 113 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, /* 255 */ 114 }; 115 116 /* 117 * Level triggerd IRQ list 118 * Not listed IRQ is Edge trigger. 119 * See "11.3.1 Interrupt Vector Table" in hardware manual. 120 */ 121 static const uint8_t levelirq[] = { 122 16, 21, 32, 44, 47, 48, 51, 64, 65, 66, 123 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 124 77, 78, 79, 90, 91, 170, 171, 172, 173, 214, 125 217, 218, 221, 222, 225, 226, 229, 234, 237, 238, 126 241, 246, 249, 250, 253, 127 }; 128 129 static void register_icu(RX62NState *s) 130 { 131 int i; 132 SysBusDevice *icu; 133 134 object_initialize_child(OBJECT(s), "icu", &s->icu, TYPE_RX_ICU); 135 icu = SYS_BUS_DEVICE(&s->icu); 136 qdev_prop_set_uint32(DEVICE(icu), "len-ipr-map", NR_IRQS); 137 for (i = 0; i < NR_IRQS; i++) { 138 char propname[32]; 139 snprintf(propname, sizeof(propname), "ipr-map[%d]", i); 140 qdev_prop_set_uint32(DEVICE(icu), propname, ipr_table[i]); 141 } 142 qdev_prop_set_uint32(DEVICE(icu), "len-trigger-level", 143 ARRAY_SIZE(levelirq)); 144 for (i = 0; i < ARRAY_SIZE(levelirq); i++) { 145 char propname[32]; 146 snprintf(propname, sizeof(propname), "trigger-level[%d]", i); 147 qdev_prop_set_uint32(DEVICE(icu), propname, levelirq[i]); 148 } 149 150 for (i = 0; i < NR_IRQS; i++) { 151 s->irq[i] = qdev_get_gpio_in(DEVICE(icu), i); 152 } 153 sysbus_realize(icu, &error_abort); 154 sysbus_connect_irq(icu, 0, qdev_get_gpio_in(DEVICE(&s->cpu), RX_CPU_IRQ)); 155 sysbus_connect_irq(icu, 1, qdev_get_gpio_in(DEVICE(&s->cpu), RX_CPU_FIR)); 156 sysbus_connect_irq(icu, 2, s->irq[SWI]); 157 sysbus_mmio_map(SYS_BUS_DEVICE(icu), 0, RX62N_ICU_BASE); 158 } 159 160 static void register_tmr(RX62NState *s, int unit) 161 { 162 SysBusDevice *tmr; 163 int i, irqbase; 164 165 object_initialize_child(OBJECT(s), "tmr[*]", 166 &s->tmr[unit], TYPE_RENESAS_TMR); 167 tmr = SYS_BUS_DEVICE(&s->tmr[unit]); 168 qdev_prop_set_uint64(DEVICE(tmr), "input-freq", s->pclk_freq_hz); 169 sysbus_realize(tmr, &error_abort); 170 171 irqbase = RX62N_TMR_IRQ + TMR_NR_IRQ * unit; 172 for (i = 0; i < TMR_NR_IRQ; i++) { 173 sysbus_connect_irq(tmr, i, s->irq[irqbase + i]); 174 } 175 sysbus_mmio_map(tmr, 0, RX62N_TMR_BASE + unit * 0x10); 176 } 177 178 static void register_cmt(RX62NState *s, int unit) 179 { 180 SysBusDevice *cmt; 181 int i, irqbase; 182 183 object_initialize_child(OBJECT(s), "cmt[*]", 184 &s->cmt[unit], TYPE_RENESAS_CMT); 185 cmt = SYS_BUS_DEVICE(&s->cmt[unit]); 186 qdev_prop_set_uint64(DEVICE(cmt), "input-freq", s->pclk_freq_hz); 187 sysbus_realize(cmt, &error_abort); 188 189 irqbase = RX62N_CMT_IRQ + CMT_NR_IRQ * unit; 190 for (i = 0; i < CMT_NR_IRQ; i++) { 191 sysbus_connect_irq(cmt, i, s->irq[irqbase + i]); 192 } 193 sysbus_mmio_map(cmt, 0, RX62N_CMT_BASE + unit * 0x10); 194 } 195 196 static void register_sci(RX62NState *s, int unit) 197 { 198 SysBusDevice *sci; 199 int i, irqbase; 200 201 object_initialize_child(OBJECT(s), "sci[*]", 202 &s->sci[unit], TYPE_RENESAS_SCI); 203 sci = SYS_BUS_DEVICE(&s->sci[unit]); 204 qdev_prop_set_chr(DEVICE(sci), "chardev", serial_hd(unit)); 205 qdev_prop_set_uint64(DEVICE(sci), "input-freq", s->pclk_freq_hz); 206 sysbus_realize(sci, &error_abort); 207 208 irqbase = RX62N_SCI_IRQ + SCI_NR_IRQ * unit; 209 for (i = 0; i < SCI_NR_IRQ; i++) { 210 sysbus_connect_irq(sci, i, s->irq[irqbase + i]); 211 } 212 sysbus_mmio_map(sci, 0, RX62N_SCI_BASE + unit * 0x08); 213 } 214 215 static void rx62n_realize(DeviceState *dev, Error **errp) 216 { 217 RX62NState *s = RX62N_MCU(dev); 218 RX62NClass *rxc = RX62N_MCU_GET_CLASS(dev); 219 220 if (s->xtal_freq_hz == 0) { 221 error_setg(errp, "\"xtal-frequency-hz\" property must be provided."); 222 return; 223 } 224 /* XTAL range: 8-14 MHz */ 225 if (s->xtal_freq_hz < RX62N_XTAL_MIN_HZ 226 || s->xtal_freq_hz > RX62N_XTAL_MAX_HZ) { 227 error_setg(errp, "\"xtal-frequency-hz\" property in incorrect range."); 228 return; 229 } 230 /* Use a 4x fixed multiplier */ 231 s->pclk_freq_hz = 4 * s->xtal_freq_hz; 232 /* PCLK range: 8-50 MHz */ 233 assert(s->pclk_freq_hz <= RX62N_PCLK_MAX_HZ); 234 235 memory_region_init_ram(&s->iram, OBJECT(dev), "iram", 236 rxc->ram_size, &error_abort); 237 memory_region_add_subregion(s->sysmem, RX62N_IRAM_BASE, &s->iram); 238 memory_region_init_rom(&s->d_flash, OBJECT(dev), "flash-data", 239 rxc->data_flash_size, &error_abort); 240 memory_region_add_subregion(s->sysmem, RX62N_DFLASH_BASE, &s->d_flash); 241 memory_region_init_rom(&s->c_flash, OBJECT(dev), "flash-code", 242 rxc->rom_flash_size, &error_abort); 243 memory_region_add_subregion(s->sysmem, RX62N_CFLASH_BASE, &s->c_flash); 244 245 /* Initialize CPU */ 246 object_initialize_child(OBJECT(s), "cpu", &s->cpu, TYPE_RX62N_CPU); 247 qdev_realize(DEVICE(&s->cpu), NULL, &error_abort); 248 249 register_icu(s); 250 s->cpu.env.ack = qdev_get_gpio_in_named(DEVICE(&s->icu), "ack", 0); 251 register_tmr(s, 0); 252 register_tmr(s, 1); 253 register_cmt(s, 0); 254 register_cmt(s, 1); 255 register_sci(s, 0); 256 } 257 258 static Property rx62n_properties[] = { 259 DEFINE_PROP_LINK("main-bus", RX62NState, sysmem, TYPE_MEMORY_REGION, 260 MemoryRegion *), 261 DEFINE_PROP_BOOL("load-kernel", RX62NState, kernel, false), 262 DEFINE_PROP_UINT32("xtal-frequency-hz", RX62NState, xtal_freq_hz, 0), 263 DEFINE_PROP_END_OF_LIST(), 264 }; 265 266 static void rx62n_class_init(ObjectClass *klass, void *data) 267 { 268 DeviceClass *dc = DEVICE_CLASS(klass); 269 270 dc->realize = rx62n_realize; 271 device_class_set_props(dc, rx62n_properties); 272 } 273 274 static void r5f562n7_class_init(ObjectClass *oc, void *data) 275 { 276 RX62NClass *rxc = RX62N_MCU_CLASS(oc); 277 278 rxc->ram_size = 64 * KiB; 279 rxc->rom_flash_size = 384 * KiB; 280 rxc->data_flash_size = 32 * KiB; 281 }; 282 283 static void r5f562n8_class_init(ObjectClass *oc, void *data) 284 { 285 RX62NClass *rxc = RX62N_MCU_CLASS(oc); 286 287 rxc->ram_size = 96 * KiB; 288 rxc->rom_flash_size = 512 * KiB; 289 rxc->data_flash_size = 32 * KiB; 290 }; 291 292 static const TypeInfo rx62n_types[] = { 293 { 294 .name = TYPE_R5F562N7_MCU, 295 .parent = TYPE_RX62N_MCU, 296 .class_init = r5f562n7_class_init, 297 }, { 298 .name = TYPE_R5F562N8_MCU, 299 .parent = TYPE_RX62N_MCU, 300 .class_init = r5f562n8_class_init, 301 }, { 302 .name = TYPE_RX62N_MCU, 303 .parent = TYPE_DEVICE, 304 .instance_size = sizeof(RX62NState), 305 .class_size = sizeof(RX62NClass), 306 .class_init = rx62n_class_init, 307 .abstract = true, 308 } 309 }; 310 311 DEFINE_TYPES(rx62n_types) 312