1 /* vim:set shiftwidth=4 ts=4 et: */ 2 /* 3 * PXA255 Sharp Zaurus SL-6000 PDA platform 4 * 5 * Copyright (c) 2008 Dmitry Baryshkov 6 * 7 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org> 8 * This code is licensed under the GNU GPL v2. 9 * 10 * Contributions after 2012-01-13 are licensed under the terms of the 11 * GNU GPL, version 2 or (at your option) any later version. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "sysemu/runstate.h" 17 #include "hw/arm/pxa.h" 18 #include "hw/arm/boot.h" 19 #include "hw/arm/sharpsl.h" 20 #include "hw/pcmcia.h" 21 #include "hw/boards.h" 22 #include "hw/display/tc6393xb.h" 23 #include "hw/i2c/i2c.h" 24 #include "hw/irq.h" 25 #include "hw/ssi/ssi.h" 26 #include "hw/sysbus.h" 27 #include "exec/address-spaces.h" 28 #include "qom/object.h" 29 30 #define TOSA_RAM 0x04000000 31 #define TOSA_ROM 0x00800000 32 33 #define TOSA_GPIO_USB_IN (5) 34 #define TOSA_GPIO_nSD_DETECT (9) 35 #define TOSA_GPIO_ON_RESET (19) 36 #define TOSA_GPIO_CF_IRQ (21) /* CF slot0 Ready */ 37 #define TOSA_GPIO_CF_CD (13) 38 #define TOSA_GPIO_TC6393XB_INT (15) 39 #define TOSA_GPIO_JC_CF_IRQ (36) /* CF slot1 Ready */ 40 41 #define TOSA_SCOOP_GPIO_BASE 1 42 #define TOSA_GPIO_IR_POWERDWN (TOSA_SCOOP_GPIO_BASE + 2) 43 #define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3) 44 #define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4) 45 46 #define TOSA_SCOOP_JC_GPIO_BASE 1 47 #define TOSA_GPIO_BT_LED (TOSA_SCOOP_JC_GPIO_BASE + 0) 48 #define TOSA_GPIO_NOTE_LED (TOSA_SCOOP_JC_GPIO_BASE + 1) 49 #define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2) 50 #define TOSA_GPIO_TC6393XB_L3V_ON (TOSA_SCOOP_JC_GPIO_BASE + 5) 51 #define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7) 52 53 #define DAC_BASE 0x4e 54 #define DAC_CH1 0 55 #define DAC_CH2 1 56 57 static void tosa_microdrive_attach(PXA2xxState *cpu) 58 { 59 PCMCIACardState *md; 60 DriveInfo *dinfo; 61 62 dinfo = drive_get(IF_IDE, 0, 0); 63 if (!dinfo || dinfo->media_cd) 64 return; 65 md = dscm1xxxx_init(dinfo); 66 pxa2xx_pcmcia_attach(cpu->pcmcia[0], md); 67 } 68 69 /* 70 * Encapsulation of some GPIO line behaviour for the Tosa board 71 * 72 * QEMU interface: 73 * + named GPIO inputs "leds[0..3]": assert to light LEDs 74 * + named GPIO input "reset": when asserted, resets the system 75 */ 76 77 #define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio" 78 typedef struct TosaMiscGPIOState TosaMiscGPIOState; 79 DECLARE_INSTANCE_CHECKER(TosaMiscGPIOState, TOSA_MISC_GPIO, 80 TYPE_TOSA_MISC_GPIO) 81 82 struct TosaMiscGPIOState { 83 SysBusDevice parent_obj; 84 }; 85 86 static void tosa_gpio_leds(void *opaque, int line, int level) 87 { 88 switch (line) { 89 case 0: 90 fprintf(stderr, "blue LED %s.\n", level ? "on" : "off"); 91 break; 92 case 1: 93 fprintf(stderr, "green LED %s.\n", level ? "on" : "off"); 94 break; 95 case 2: 96 fprintf(stderr, "amber LED %s.\n", level ? "on" : "off"); 97 break; 98 case 3: 99 fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off"); 100 break; 101 default: 102 g_assert_not_reached(); 103 } 104 } 105 106 static void tosa_reset(void *opaque, int line, int level) 107 { 108 if (level) { 109 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 110 } 111 } 112 113 static void tosa_misc_gpio_init(Object *obj) 114 { 115 DeviceState *dev = DEVICE(obj); 116 117 qdev_init_gpio_in_named(dev, tosa_gpio_leds, "leds", 4); 118 qdev_init_gpio_in_named(dev, tosa_reset, "reset", 1); 119 } 120 121 static void tosa_gpio_setup(PXA2xxState *cpu, 122 DeviceState *scp0, 123 DeviceState *scp1, 124 TC6393xbState *tmio) 125 { 126 DeviceState *misc_gpio; 127 128 misc_gpio = sysbus_create_simple(TYPE_TOSA_MISC_GPIO, -1, NULL); 129 130 /* MMC/SD host */ 131 pxa2xx_mmci_handlers(cpu->mmc, 132 qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP), 133 qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT))); 134 135 /* Handle reset */ 136 qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, 137 qdev_get_gpio_in_named(misc_gpio, "reset", 0)); 138 139 /* PCMCIA signals: card's IRQ and Card-Detect */ 140 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0], 141 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ), 142 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD)); 143 144 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1], 145 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ), 146 NULL); 147 148 qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, 149 qdev_get_gpio_in_named(misc_gpio, "leds", 0)); 150 qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, 151 qdev_get_gpio_in_named(misc_gpio, "leds", 1)); 152 qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, 153 qdev_get_gpio_in_named(misc_gpio, "leds", 2)); 154 qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, 155 qdev_get_gpio_in_named(misc_gpio, "leds", 3)); 156 157 qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio)); 158 159 /* UDC Vbus */ 160 qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN)); 161 } 162 163 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value) 164 { 165 fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f); 166 return 0; 167 } 168 169 static void tosa_ssp_realize(SSISlave *dev, Error **errp) 170 { 171 /* Nothing to do. */ 172 } 173 174 #define TYPE_TOSA_DAC "tosa_dac" 175 typedef struct TosaDACState TosaDACState; 176 DECLARE_INSTANCE_CHECKER(TosaDACState, TOSA_DAC, 177 TYPE_TOSA_DAC) 178 179 struct TosaDACState { 180 I2CSlave parent_obj; 181 182 int len; 183 char buf[3]; 184 }; 185 186 static int tosa_dac_send(I2CSlave *i2c, uint8_t data) 187 { 188 TosaDACState *s = TOSA_DAC(i2c); 189 190 s->buf[s->len] = data; 191 if (s->len ++ > 2) { 192 #ifdef VERBOSE 193 fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len); 194 #endif 195 return 1; 196 } 197 198 if (s->len == 2) { 199 fprintf(stderr, "dac: channel %d value 0x%02x\n", 200 s->buf[0], s->buf[1]); 201 } 202 203 return 0; 204 } 205 206 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event) 207 { 208 TosaDACState *s = TOSA_DAC(i2c); 209 210 s->len = 0; 211 switch (event) { 212 case I2C_START_SEND: 213 break; 214 case I2C_START_RECV: 215 printf("%s: recv not supported!!!\n", __func__); 216 break; 217 case I2C_FINISH: 218 #ifdef VERBOSE 219 if (s->len < 2) 220 printf("%s: message too short (%i bytes)\n", __func__, s->len); 221 if (s->len > 2) 222 printf("%s: message too long\n", __func__); 223 #endif 224 break; 225 default: 226 break; 227 } 228 229 return 0; 230 } 231 232 static uint8_t tosa_dac_recv(I2CSlave *s) 233 { 234 printf("%s: recv not supported!!!\n", __func__); 235 return 0xff; 236 } 237 238 static void tosa_tg_init(PXA2xxState *cpu) 239 { 240 I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]); 241 i2c_slave_create_simple(bus, TYPE_TOSA_DAC, DAC_BASE); 242 ssi_create_slave(cpu->ssp[1], "tosa-ssp"); 243 } 244 245 246 static struct arm_boot_info tosa_binfo = { 247 .loader_start = PXA2XX_SDRAM_BASE, 248 .ram_size = 0x04000000, 249 }; 250 251 static void tosa_init(MachineState *machine) 252 { 253 MemoryRegion *address_space_mem = get_system_memory(); 254 MemoryRegion *rom = g_new(MemoryRegion, 1); 255 PXA2xxState *mpu; 256 TC6393xbState *tmio; 257 DeviceState *scp0, *scp1; 258 259 mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size); 260 261 memory_region_init_rom(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal); 262 memory_region_add_subregion(address_space_mem, 0, rom); 263 264 tmio = tc6393xb_init(address_space_mem, 0x10000000, 265 qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT)); 266 267 scp0 = sysbus_create_simple("scoop", 0x08800000, NULL); 268 scp1 = sysbus_create_simple("scoop", 0x14800040, NULL); 269 270 tosa_gpio_setup(mpu, scp0, scp1, tmio); 271 272 tosa_microdrive_attach(mpu); 273 274 tosa_tg_init(mpu); 275 276 tosa_binfo.board_id = 0x208; 277 arm_load_kernel(mpu->cpu, machine, &tosa_binfo); 278 sl_bootparam_write(SL_PXA_PARAM_BASE); 279 } 280 281 static void tosapda_machine_init(MachineClass *mc) 282 { 283 mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)"; 284 mc->init = tosa_init; 285 mc->block_default_type = IF_IDE; 286 mc->ignore_memory_transaction_failures = true; 287 } 288 289 DEFINE_MACHINE("tosa", tosapda_machine_init) 290 291 static void tosa_dac_class_init(ObjectClass *klass, void *data) 292 { 293 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); 294 295 k->event = tosa_dac_event; 296 k->recv = tosa_dac_recv; 297 k->send = tosa_dac_send; 298 } 299 300 static const TypeInfo tosa_dac_info = { 301 .name = TYPE_TOSA_DAC, 302 .parent = TYPE_I2C_SLAVE, 303 .instance_size = sizeof(TosaDACState), 304 .class_init = tosa_dac_class_init, 305 }; 306 307 static void tosa_ssp_class_init(ObjectClass *klass, void *data) 308 { 309 SSISlaveClass *k = SSI_SLAVE_CLASS(klass); 310 311 k->realize = tosa_ssp_realize; 312 k->transfer = tosa_ssp_tansfer; 313 } 314 315 static const TypeInfo tosa_ssp_info = { 316 .name = "tosa-ssp", 317 .parent = TYPE_SSI_SLAVE, 318 .instance_size = sizeof(SSISlave), 319 .class_init = tosa_ssp_class_init, 320 }; 321 322 static const TypeInfo tosa_misc_gpio_info = { 323 .name = TYPE_TOSA_MISC_GPIO, 324 .parent = TYPE_SYS_BUS_DEVICE, 325 .instance_size = sizeof(TosaMiscGPIOState), 326 .instance_init = tosa_misc_gpio_init, 327 /* 328 * No class init required: device has no internal state so does not 329 * need to set up reset or vmstate, and has no realize method. 330 */ 331 }; 332 333 static void tosa_register_types(void) 334 { 335 type_register_static(&tosa_dac_info); 336 type_register_static(&tosa_ssp_info); 337 type_register_static(&tosa_misc_gpio_info); 338 } 339 340 type_init(tosa_register_types) 341