hw/arm/tosa.c

   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)