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 "hw/hw.h"
  17 #include "hw/arm/pxa.h"
  18 #include "hw/arm/arm.h"
  19 #include "hw/devices.h"
  20 #include "hw/arm/sharpsl.h"
  21 #include "hw/pcmcia.h"
  22 #include "hw/boards.h"
  23 #include "hw/i2c/i2c.h"
  24 #include "hw/ssi/ssi.h"
  25 #include "sysemu/block-backend.h"
  26 #include "hw/sysbus.h"
  27 #include "exec/address-spaces.h"
  28 #include "sysemu/sysemu.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 static void tosa_out_switch(void *opaque, int line, int level)
  70 {
  71     switch (line) {
  72         case 0:
  73             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  74             break;
  75         case 1:
  76             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  77             break;
  78         case 2:
  79             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  80             break;
  81         case 3:
  82             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  83             break;
  84         default:
  85             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  86             break;
  87     }
  88 }
  89
  90 static void tosa_reset(void *opaque, int line, int level)
  91 {
  92     if (level) {
  93         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  94     }
  95 }
  96
  97 static void tosa_gpio_setup(PXA2xxState *cpu,
  98                 DeviceState *scp0,
  99                 DeviceState *scp1,
 100                 TC6393xbState *tmio)
 101 {
 102     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
 103     qemu_irq reset;
 104
 105     /* MMC/SD host */
 106     pxa2xx_mmci_handlers(cpu->mmc,
 107                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
 108                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 109
 110     /* Handle reset */
 111     reset = qemu_allocate_irq(tosa_reset, cpu, 0);
 112     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, reset);
 113
 114     /* PCMCIA signals: card's IRQ and Card-Detect */
 115     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 116                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 117                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 118
 119     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 120                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 121                         NULL);
 122
 123     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 124     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 125     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 126     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 127
 128     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 129
 130     /* UDC Vbus */
 131     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 132 }
 133
 134 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 135 {
 136     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 137     return 0;
 138 }
 139
 140 static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 141 {
 142     /* Nothing to do.  */
 143 }
 144
 145 #define TYPE_TOSA_DAC "tosa_dac"
 146 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 147
 148 typedef struct {
 149     I2CSlave parent_obj;
 150
 151     int len;
 152     char buf[3];
 153 } TosaDACState;
 154
 155 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 156 {
 157     TosaDACState *s = TOSA_DAC(i2c);
 158
 159     s->buf[s->len] = data;
 160     if (s->len ++ > 2) {
 161 #ifdef VERBOSE
 162         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 163 #endif
 164         return 1;
 165     }
 166
 167     if (s->len == 2) {
 168         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 169                 s->buf[0], s->buf[1]);
 170     }
 171
 172     return 0;
 173 }
 174
 175 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 176 {
 177     TosaDACState *s = TOSA_DAC(i2c);
 178
 179     s->len = 0;
 180     switch (event) {
 181     case I2C_START_SEND:
 182         break;
 183     case I2C_START_RECV:
 184         printf("%s: recv not supported!!!\n", __FUNCTION__);
 185         break;
 186     case I2C_FINISH:
 187 #ifdef VERBOSE
 188         if (s->len < 2)
 189             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 190         if (s->len > 2)
 191             printf("%s: message too long\n", __FUNCTION__);
 192 #endif
 193         break;
 194     default:
 195         break;
 196     }
 197
 198     return 0;
 199 }
 200
 201 static int tosa_dac_recv(I2CSlave *s)
 202 {
 203     printf("%s: recv not supported!!!\n", __FUNCTION__);
 204     return -1;
 205 }
 206
 207 static void tosa_tg_init(PXA2xxState *cpu)
 208 {
 209     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 210     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 211     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 212 }
 213
 214
 215 static struct arm_boot_info tosa_binfo = {
 216     .loader_start = PXA2XX_SDRAM_BASE,
 217     .ram_size = 0x04000000,
 218 };
 219
 220 static void tosa_init(MachineState *machine)
 221 {
 222     const char *cpu_model = machine->cpu_model;
 223     const char *kernel_filename = machine->kernel_filename;
 224     const char *kernel_cmdline = machine->kernel_cmdline;
 225     const char *initrd_filename = machine->initrd_filename;
 226     MemoryRegion *address_space_mem = get_system_memory();
 227     MemoryRegion *rom = g_new(MemoryRegion, 1);
 228     PXA2xxState *mpu;
 229     TC6393xbState *tmio;
 230     DeviceState *scp0, *scp1;
 231
 232     if (!cpu_model)
 233         cpu_model = "pxa255";
 234
 235     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 236
 237     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 238     vmstate_register_ram_global(rom);
 239     memory_region_set_readonly(rom, true);
 240     memory_region_add_subregion(address_space_mem, 0, rom);
 241
 242     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 243             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 244
 245     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 246     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 247
 248     tosa_gpio_setup(mpu, scp0, scp1, tmio);
 249
 250     tosa_microdrive_attach(mpu);
 251
 252     tosa_tg_init(mpu);
 253
 254     tosa_binfo.kernel_filename = kernel_filename;
 255     tosa_binfo.kernel_cmdline = kernel_cmdline;
 256     tosa_binfo.initrd_filename = initrd_filename;
 257     tosa_binfo.board_id = 0x208;
 258     arm_load_kernel(mpu->cpu, &tosa_binfo);
 259     sl_bootparam_write(SL_PXA_PARAM_BASE);
 260 }
 261
 262 static void tosapda_machine_init(MachineClass *mc)
 263 {
 264     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 265     mc->init = tosa_init;
 266     mc->block_default_type = IF_IDE;
 267 }
 268
 269 DEFINE_MACHINE("tosa", tosapda_machine_init)
 270
 271 static void tosa_dac_class_init(ObjectClass *klass, void *data)
 272 {
 273     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 274
 275     k->event = tosa_dac_event;
 276     k->recv = tosa_dac_recv;
 277     k->send = tosa_dac_send;
 278 }
 279
 280 static const TypeInfo tosa_dac_info = {
 281     .name          = TYPE_TOSA_DAC,
 282     .parent        = TYPE_I2C_SLAVE,
 283     .instance_size = sizeof(TosaDACState),
 284     .class_init    = tosa_dac_class_init,
 285 };
 286
 287 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 288 {
 289     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 290
 291     k->realize = tosa_ssp_realize;
 292     k->transfer = tosa_ssp_tansfer;
 293 }
 294
 295 static const TypeInfo tosa_ssp_info = {
 296     .name          = "tosa-ssp",
 297     .parent        = TYPE_SSI_SLAVE,
 298     .instance_size = sizeof(SSISlave),
 299     .class_init    = tosa_ssp_class_init,
 300 };
 301
 302 static void tosa_register_types(void)
 303 {
 304     type_register_static(&tosa_dac_info);
 305     type_register_static(&tosa_ssp_info);
 306 }
 307
 308 type_init(tosa_register_types)