tosa.c (9492B)
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 "hw/misc/led.h" 28 #include "exec/address-spaces.h" 29 #include "qom/object.h" 30 31 #define TOSA_RAM 0x04000000 32 #define TOSA_ROM 0x00800000 33 34 #define TOSA_GPIO_USB_IN (5) 35 #define TOSA_GPIO_nSD_DETECT (9) 36 #define TOSA_GPIO_ON_RESET (19) 37 #define TOSA_GPIO_CF_IRQ (21) /* CF slot0 Ready */ 38 #define TOSA_GPIO_CF_CD (13) 39 #define TOSA_GPIO_TC6393XB_INT (15) 40 #define TOSA_GPIO_JC_CF_IRQ (36) /* CF slot1 Ready */ 41 42 #define TOSA_SCOOP_GPIO_BASE 1 43 #define TOSA_GPIO_IR_POWERDWN (TOSA_SCOOP_GPIO_BASE + 2) 44 #define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3) 45 #define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4) 46 47 #define TOSA_SCOOP_JC_GPIO_BASE 1 48 #define TOSA_GPIO_BT_LED (TOSA_SCOOP_JC_GPIO_BASE + 0) 49 #define TOSA_GPIO_NOTE_LED (TOSA_SCOOP_JC_GPIO_BASE + 1) 50 #define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2) 51 #define TOSA_GPIO_TC6393XB_L3V_ON (TOSA_SCOOP_JC_GPIO_BASE + 5) 52 #define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7) 53 54 #define DAC_BASE 0x4e 55 #define DAC_CH1 0 56 #define DAC_CH2 1 57 58 static void tosa_microdrive_attach(PXA2xxState *cpu) 59 { 60 PCMCIACardState *md; 61 DriveInfo *dinfo; 62 63 dinfo = drive_get(IF_IDE, 0, 0); 64 if (!dinfo || dinfo->media_cd) 65 return; 66 md = dscm1xxxx_init(dinfo); 67 pxa2xx_pcmcia_attach(cpu->pcmcia[0], md); 68 } 69 70 /* 71 * Encapsulation of some GPIO line behaviour for the Tosa board 72 * 73 * QEMU interface: 74 * + named GPIO inputs "leds[0..3]": assert to light LEDs 75 * + named GPIO input "reset": when asserted, resets the system 76 */ 77 78 #define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio" 79 OBJECT_DECLARE_SIMPLE_TYPE(TosaMiscGPIOState, TOSA_MISC_GPIO) 80 81 struct TosaMiscGPIOState { 82 SysBusDevice parent_obj; 83 }; 84 85 static void tosa_reset(void *opaque, int line, int level) 86 { 87 if (level) { 88 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 89 } 90 } 91 92 static void tosa_misc_gpio_init(Object *obj) 93 { 94 DeviceState *dev = DEVICE(obj); 95 96 qdev_init_gpio_in_named(dev, tosa_reset, "reset", 1); 97 } 98 99 static void tosa_gpio_setup(PXA2xxState *cpu, 100 DeviceState *scp0, 101 DeviceState *scp1, 102 TC6393xbState *tmio) 103 { 104 DeviceState *misc_gpio; 105 LEDState *led[4]; 106 107 misc_gpio = sysbus_create_simple(TYPE_TOSA_MISC_GPIO, -1, NULL); 108 109 /* MMC/SD host */ 110 pxa2xx_mmci_handlers(cpu->mmc, 111 qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP), 112 qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT))); 113 114 /* Handle reset */ 115 qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, 116 qdev_get_gpio_in_named(misc_gpio, "reset", 0)); 117 118 /* PCMCIA signals: card's IRQ and Card-Detect */ 119 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0], 120 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ), 121 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD)); 122 123 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1], 124 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ), 125 NULL); 126 127 led[0] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH, 128 LED_COLOR_BLUE, "bluetooth"); 129 led[1] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH, 130 LED_COLOR_GREEN, "note"); 131 led[2] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH, 132 LED_COLOR_AMBER, "charger-error"); 133 led[3] = led_create_simple(OBJECT(misc_gpio), GPIO_POLARITY_ACTIVE_HIGH, 134 LED_COLOR_GREEN, "wlan"); 135 136 qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, 137 qdev_get_gpio_in(DEVICE(led[0]), 0)); 138 qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, 139 qdev_get_gpio_in(DEVICE(led[1]), 0)); 140 qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, 141 qdev_get_gpio_in(DEVICE(led[2]), 0)); 142 qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, 143 qdev_get_gpio_in(DEVICE(led[3]), 0)); 144 145 qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio)); 146 147 /* UDC Vbus */ 148 qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN)); 149 } 150 151 static uint32_t tosa_ssp_tansfer(SSIPeripheral *dev, uint32_t value) 152 { 153 fprintf(stderr, "TG: %u %02x\n", value >> 5, value & 0x1f); 154 return 0; 155 } 156 157 static void tosa_ssp_realize(SSIPeripheral *dev, Error **errp) 158 { 159 /* Nothing to do. */ 160 } 161 162 #define TYPE_TOSA_DAC "tosa_dac" 163 OBJECT_DECLARE_SIMPLE_TYPE(TosaDACState, TOSA_DAC) 164 165 struct TosaDACState { 166 I2CSlave parent_obj; 167 168 int len; 169 char buf[3]; 170 }; 171 172 static int tosa_dac_send(I2CSlave *i2c, uint8_t data) 173 { 174 TosaDACState *s = TOSA_DAC(i2c); 175 176 s->buf[s->len] = data; 177 if (s->len ++ > 2) { 178 #ifdef VERBOSE 179 fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len); 180 #endif 181 return 1; 182 } 183 184 if (s->len == 2) { 185 fprintf(stderr, "dac: channel %d value 0x%02x\n", 186 s->buf[0], s->buf[1]); 187 } 188 189 return 0; 190 } 191 192 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event) 193 { 194 TosaDACState *s = TOSA_DAC(i2c); 195 196 s->len = 0; 197 switch (event) { 198 case I2C_START_SEND: 199 break; 200 case I2C_START_RECV: 201 printf("%s: recv not supported!!!\n", __func__); 202 break; 203 case I2C_FINISH: 204 #ifdef VERBOSE 205 if (s->len < 2) 206 printf("%s: message too short (%i bytes)\n", __func__, s->len); 207 if (s->len > 2) 208 printf("%s: message too long\n", __func__); 209 #endif 210 break; 211 default: 212 break; 213 } 214 215 return 0; 216 } 217 218 static uint8_t tosa_dac_recv(I2CSlave *s) 219 { 220 printf("%s: recv not supported!!!\n", __func__); 221 return 0xff; 222 } 223 224 static void tosa_tg_init(PXA2xxState *cpu) 225 { 226 I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]); 227 i2c_slave_create_simple(bus, TYPE_TOSA_DAC, DAC_BASE); 228 ssi_create_peripheral(cpu->ssp[1], "tosa-ssp"); 229 } 230 231 232 static struct arm_boot_info tosa_binfo = { 233 .loader_start = PXA2XX_SDRAM_BASE, 234 .ram_size = 0x04000000, 235 }; 236 237 static void tosa_init(MachineState *machine) 238 { 239 MemoryRegion *address_space_mem = get_system_memory(); 240 MemoryRegion *rom = g_new(MemoryRegion, 1); 241 PXA2xxState *mpu; 242 TC6393xbState *tmio; 243 DeviceState *scp0, *scp1; 244 245 mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size); 246 247 memory_region_init_rom(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal); 248 memory_region_add_subregion(address_space_mem, 0, rom); 249 250 tmio = tc6393xb_init(address_space_mem, 0x10000000, 251 qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT)); 252 253 scp0 = sysbus_create_simple("scoop", 0x08800000, NULL); 254 scp1 = sysbus_create_simple("scoop", 0x14800040, NULL); 255 256 tosa_gpio_setup(mpu, scp0, scp1, tmio); 257 258 tosa_microdrive_attach(mpu); 259 260 tosa_tg_init(mpu); 261 262 tosa_binfo.board_id = 0x208; 263 arm_load_kernel(mpu->cpu, machine, &tosa_binfo); 264 sl_bootparam_write(SL_PXA_PARAM_BASE); 265 } 266 267 static void tosapda_machine_init(MachineClass *mc) 268 { 269 mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)"; 270 mc->init = tosa_init; 271 mc->block_default_type = IF_IDE; 272 mc->ignore_memory_transaction_failures = true; 273 } 274 275 DEFINE_MACHINE("tosa", tosapda_machine_init) 276 277 static void tosa_dac_class_init(ObjectClass *klass, void *data) 278 { 279 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); 280 281 k->event = tosa_dac_event; 282 k->recv = tosa_dac_recv; 283 k->send = tosa_dac_send; 284 } 285 286 static const TypeInfo tosa_dac_info = { 287 .name = TYPE_TOSA_DAC, 288 .parent = TYPE_I2C_SLAVE, 289 .instance_size = sizeof(TosaDACState), 290 .class_init = tosa_dac_class_init, 291 }; 292 293 static void tosa_ssp_class_init(ObjectClass *klass, void *data) 294 { 295 SSIPeripheralClass *k = SSI_PERIPHERAL_CLASS(klass); 296 297 k->realize = tosa_ssp_realize; 298 k->transfer = tosa_ssp_tansfer; 299 } 300 301 static const TypeInfo tosa_ssp_info = { 302 .name = "tosa-ssp", 303 .parent = TYPE_SSI_PERIPHERAL, 304 .instance_size = sizeof(SSIPeripheral), 305 .class_init = tosa_ssp_class_init, 306 }; 307 308 static const TypeInfo tosa_misc_gpio_info = { 309 .name = TYPE_TOSA_MISC_GPIO, 310 .parent = TYPE_SYS_BUS_DEVICE, 311 .instance_size = sizeof(TosaMiscGPIOState), 312 .instance_init = tosa_misc_gpio_init, 313 /* 314 * No class init required: device has no internal state so does not 315 * need to set up reset or vmstate, and has no realize method. 316 */ 317 }; 318 319 static void tosa_register_types(void) 320 { 321 type_register_static(&tosa_dac_info); 322 type_register_static(&tosa_ssp_info); 323 type_register_static(&tosa_misc_gpio_info); 324 } 325 326 type_init(tosa_register_types)