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 "hw/hw.h"
  15 #include "hw/arm/pxa.h"
  16 #include "hw/arm/arm.h"
  17 #include "hw/devices.h"
  18 #include "hw/arm/sharpsl.h"
  19 #include "hw/pcmcia.h"
  20 #include "hw/boards.h"
  21 #include "hw/i2c/i2c.h"
  22 #include "hw/ssi.h"
  23 #include "sysemu/block-backend.h"
  24 #include "hw/sysbus.h"
  25 #include "exec/address-spaces.h"
  26
  27 #define TOSA_RAM    0x04000000
  28 #define TOSA_ROM        0x00800000
  29
  30 #define TOSA_GPIO_USB_IN                (5)
  31 #define TOSA_GPIO_nSD_DETECT    (9)
  32 #define TOSA_GPIO_ON_RESET              (19)
  33 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  34 #define TOSA_GPIO_CF_CD                 (13)
  35 #define TOSA_GPIO_TC6393XB_INT  (15)
  36 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  37
  38 #define TOSA_SCOOP_GPIO_BASE    1
  39 #define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  40 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  41 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  42
  43 #define TOSA_SCOOP_JC_GPIO_BASE         1
  44 #define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  45 #define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  46 #define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  47 #define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  48 #define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  49
  50 #define DAC_BASE        0x4e
  51 #define DAC_CH1         0
  52 #define DAC_CH2         1
  53
  54 static void tosa_microdrive_attach(PXA2xxState *cpu)
  55 {
  56     PCMCIACardState *md;
  57     DriveInfo *dinfo;
  58
  59     dinfo = drive_get(IF_IDE, 0, 0);
  60     if (!dinfo || dinfo->media_cd)
  61         return;
  62     md = dscm1xxxx_init(dinfo);
  63     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  64 }
  65
  66 static void tosa_out_switch(void *opaque, int line, int level)
  67 {
  68     switch (line) {
  69         case 0:
  70             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  71             break;
  72         case 1:
  73             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  74             break;
  75         case 2:
  76             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  77             break;
  78         case 3:
  79             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  80             break;
  81         default:
  82             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  83             break;
  84     }
  85 }
  86
  87
  88 static void tosa_gpio_setup(PXA2xxState *cpu,
  89                 DeviceState *scp0,
  90                 DeviceState *scp1,
  91                 TC6393xbState *tmio)
  92 {
  93     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  94     /* MMC/SD host */
  95     pxa2xx_mmci_handlers(cpu->mmc,
  96                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  97                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
  98
  99     /* Handle reset */
 100     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 101
 102     /* PCMCIA signals: card's IRQ and Card-Detect */
 103     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 104                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 105                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 106
 107     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 108                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 109                         NULL);
 110
 111     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 112     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 113     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 114     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 115
 116     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 117
 118     /* UDC Vbus */
 119     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 120 }
 121
 122 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 123 {
 124     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 125     return 0;
 126 }
 127
 128 static int tosa_ssp_init(SSISlave *dev)
 129 {
 130     /* Nothing to do.  */
 131     return 0;
 132 }
 133
 134 #define TYPE_TOSA_DAC "tosa_dac"
 135 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 136
 137 typedef struct {
 138     I2CSlave parent_obj;
 139
 140     int len;
 141     char buf[3];
 142 } TosaDACState;
 143
 144 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 145 {
 146     TosaDACState *s = TOSA_DAC(i2c);
 147
 148     s->buf[s->len] = data;
 149     if (s->len ++ > 2) {
 150 #ifdef VERBOSE
 151         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 152 #endif
 153         return 1;
 154     }
 155
 156     if (s->len == 2) {
 157         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 158                 s->buf[0], s->buf[1]);
 159     }
 160
 161     return 0;
 162 }
 163
 164 static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 165 {
 166     TosaDACState *s = TOSA_DAC(i2c);
 167
 168     s->len = 0;
 169     switch (event) {
 170     case I2C_START_SEND:
 171         break;
 172     case I2C_START_RECV:
 173         printf("%s: recv not supported!!!\n", __FUNCTION__);
 174         break;
 175     case I2C_FINISH:
 176 #ifdef VERBOSE
 177         if (s->len < 2)
 178             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 179         if (s->len > 2)
 180             printf("%s: message too long\n", __FUNCTION__);
 181 #endif
 182         break;
 183     default:
 184         break;
 185     }
 186 }
 187
 188 static int tosa_dac_recv(I2CSlave *s)
 189 {
 190     printf("%s: recv not supported!!!\n", __FUNCTION__);
 191     return -1;
 192 }
 193
 194 static int tosa_dac_init(I2CSlave *i2c)
 195 {
 196     /* Nothing to do.  */
 197     return 0;
 198 }
 199
 200 static void tosa_tg_init(PXA2xxState *cpu)
 201 {
 202     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 203     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 204     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 205 }
 206
 207
 208 static struct arm_boot_info tosa_binfo = {
 209     .loader_start = PXA2XX_SDRAM_BASE,
 210     .ram_size = 0x04000000,
 211 };
 212
 213 static void tosa_init(MachineState *machine)
 214 {
 215     const char *cpu_model = machine->cpu_model;
 216     const char *kernel_filename = machine->kernel_filename;
 217     const char *kernel_cmdline = machine->kernel_cmdline;
 218     const char *initrd_filename = machine->initrd_filename;
 219     MemoryRegion *address_space_mem = get_system_memory();
 220     MemoryRegion *rom = g_new(MemoryRegion, 1);
 221     PXA2xxState *mpu;
 222     TC6393xbState *tmio;
 223     DeviceState *scp0, *scp1;
 224
 225     if (!cpu_model)
 226         cpu_model = "pxa255";
 227
 228     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 229
 230     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 231     vmstate_register_ram_global(rom);
 232     memory_region_set_readonly(rom, true);
 233     memory_region_add_subregion(address_space_mem, 0, rom);
 234
 235     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 236             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 237
 238     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 239     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 240
 241     tosa_gpio_setup(mpu, scp0, scp1, tmio);
 242
 243     tosa_microdrive_attach(mpu);
 244
 245     tosa_tg_init(mpu);
 246
 247     tosa_binfo.kernel_filename = kernel_filename;
 248     tosa_binfo.kernel_cmdline = kernel_cmdline;
 249     tosa_binfo.initrd_filename = initrd_filename;
 250     tosa_binfo.board_id = 0x208;
 251     arm_load_kernel(mpu->cpu, &tosa_binfo);
 252     sl_bootparam_write(SL_PXA_PARAM_BASE);
 253 }
 254
 255 static void tosapda_machine_init(MachineClass *mc)
 256 {
 257     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 258     mc->init = tosa_init;
 259 }
 260
 261 DEFINE_MACHINE("tosa", tosapda_machine_init)
 262
 263 static void tosa_dac_class_init(ObjectClass *klass, void *data)
 264 {
 265     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 266
 267     k->init = tosa_dac_init;
 268     k->event = tosa_dac_event;
 269     k->recv = tosa_dac_recv;
 270     k->send = tosa_dac_send;
 271 }
 272
 273 static const TypeInfo tosa_dac_info = {
 274     .name          = TYPE_TOSA_DAC,
 275     .parent        = TYPE_I2C_SLAVE,
 276     .instance_size = sizeof(TosaDACState),
 277     .class_init    = tosa_dac_class_init,
 278 };
 279
 280 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 281 {
 282     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 283
 284     k->init = tosa_ssp_init;
 285     k->transfer = tosa_ssp_tansfer;
 286 }
 287
 288 static const TypeInfo tosa_ssp_info = {
 289     .name          = "tosa-ssp",
 290     .parent        = TYPE_SSI_SLAVE,
 291     .instance_size = sizeof(SSISlave),
 292     .class_init    = tosa_ssp_class_init,
 293 };
 294
 295 static void tosa_register_types(void)
 296 {
 297     type_register_static(&tosa_dac_info);
 298     type_register_static(&tosa_ssp_info);
 299 }
 300
 301 type_init(tosa_register_types)