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