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
  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 static void tosa_out_switch(void *opaque, int line, int level)
  69 {
  70     switch (line) {
  71         case 0:
  72             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  73             break;
  74         case 1:
  75             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  76             break;
  77         case 2:
  78             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  79             break;
  80         case 3:
  81             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  82             break;
  83         default:
  84             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  85             break;
  86     }
  87 }
  88
  89 static void tosa_reset(void *opaque, int line, int level)
  90 {
  91     if (level) {
  92         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  93     }
  94 }
  95
  96 static void tosa_gpio_setup(PXA2xxState *cpu,
  97                 DeviceState *scp0,
  98                 DeviceState *scp1,
  99                 TC6393xbState *tmio)
 100 {
 101     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
 102     qemu_irq reset;
 103
 104     /* MMC/SD host */
 105     pxa2xx_mmci_handlers(cpu->mmc,
 106                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
 107                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 108
 109     /* Handle reset */
 110     reset = qemu_allocate_irq(tosa_reset, cpu, 0);
 111     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, reset);
 112
 113     /* PCMCIA signals: card's IRQ and Card-Detect */
 114     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 115                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 116                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 117
 118     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 119                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 120                         NULL);
 121
 122     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 123     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 124     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 125     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 126
 127     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 128
 129     /* UDC Vbus */
 130     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 131 }
 132
 133 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 134 {
 135     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 136     return 0;
 137 }
 138
 139 static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 140 {
 141     /* Nothing to do.  */
 142 }
 143
 144 #define TYPE_TOSA_DAC "tosa_dac"
 145 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 146
 147 typedef struct {
 148     I2CSlave parent_obj;
 149
 150     int len;
 151     char buf[3];
 152 } TosaDACState;
 153
 154 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 155 {
 156     TosaDACState *s = TOSA_DAC(i2c);
 157
 158     s->buf[s->len] = data;
 159     if (s->len ++ > 2) {
 160 #ifdef VERBOSE
 161         fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len);
 162 #endif
 163         return 1;
 164     }
 165
 166     if (s->len == 2) {
 167         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 168                 s->buf[0], s->buf[1]);
 169     }
 170
 171     return 0;
 172 }
 173
 174 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 175 {
 176     TosaDACState *s = TOSA_DAC(i2c);
 177
 178     s->len = 0;
 179     switch (event) {
 180     case I2C_START_SEND:
 181         break;
 182     case I2C_START_RECV:
 183         printf("%s: recv not supported!!!\n", __func__);
 184         break;
 185     case I2C_FINISH:
 186 #ifdef VERBOSE
 187         if (s->len < 2)
 188             printf("%s: message too short (%i bytes)\n", __func__, s->len);
 189         if (s->len > 2)
 190             printf("%s: message too long\n", __func__);
 191 #endif
 192         break;
 193     default:
 194         break;
 195     }
 196
 197     return 0;
 198 }
 199
 200 static uint8_t tosa_dac_recv(I2CSlave *s)
 201 {
 202     printf("%s: recv not supported!!!\n", __func__);
 203     return 0xff;
 204 }
 205
 206 static void tosa_tg_init(PXA2xxState *cpu)
 207 {
 208     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 209     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 210     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 211 }
 212
 213
 214 static struct arm_boot_info tosa_binfo = {
 215     .loader_start = PXA2XX_SDRAM_BASE,
 216     .ram_size = 0x04000000,
 217 };
 218
 219 static void tosa_init(MachineState *machine)
 220 {
 221     const char *kernel_filename = machine->kernel_filename;
 222     const char *kernel_cmdline = machine->kernel_cmdline;
 223     const char *initrd_filename = machine->initrd_filename;
 224     MemoryRegion *address_space_mem = get_system_memory();
 225     MemoryRegion *rom = g_new(MemoryRegion, 1);
 226     PXA2xxState *mpu;
 227     TC6393xbState *tmio;
 228     DeviceState *scp0, *scp1;
 229
 230     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 231
 232     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 233     memory_region_set_readonly(rom, true);
 234     memory_region_add_subregion(address_space_mem, 0, rom);
 235
 236     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 237             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
 238
 239     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 240     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 241
 242     tosa_gpio_setup(mpu, scp0, scp1, tmio);
 243
 244     tosa_microdrive_attach(mpu);
 245
 246     tosa_tg_init(mpu);
 247
 248     tosa_binfo.kernel_filename = kernel_filename;
 249     tosa_binfo.kernel_cmdline = kernel_cmdline;
 250     tosa_binfo.initrd_filename = initrd_filename;
 251     tosa_binfo.board_id = 0x208;
 252     arm_load_kernel(mpu->cpu, &tosa_binfo);
 253     sl_bootparam_write(SL_PXA_PARAM_BASE);
 254 }
 255
 256 static void tosapda_machine_init(MachineClass *mc)
 257 {
 258     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
 259     mc->init = tosa_init;
 260     mc->block_default_type = IF_IDE;
 261     mc->ignore_memory_transaction_failures = true;
 262 }
 263
 264 DEFINE_MACHINE("tosa", tosapda_machine_init)
 265
 266 static void tosa_dac_class_init(ObjectClass *klass, void *data)
 267 {
 268     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 269
 270     k->event = tosa_dac_event;
 271     k->recv = tosa_dac_recv;
 272     k->send = tosa_dac_send;
 273 }
 274
 275 static const TypeInfo tosa_dac_info = {
 276     .name          = TYPE_TOSA_DAC,
 277     .parent        = TYPE_I2C_SLAVE,
 278     .instance_size = sizeof(TosaDACState),
 279     .class_init    = tosa_dac_class_init,
 280 };
 281
 282 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 283 {
 284     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 285
 286     k->realize = tosa_ssp_realize;
 287     k->transfer = tosa_ssp_tansfer;
 288 }
 289
 290 static const TypeInfo tosa_ssp_info = {
 291     .name          = "tosa-ssp",
 292     .parent        = TYPE_SSI_SLAVE,
 293     .instance_size = sizeof(SSISlave),
 294     .class_init    = tosa_ssp_class_init,
 295 };
 296
 297 static void tosa_register_types(void)
 298 {
 299     type_register_static(&tosa_dac_info);
 300     type_register_static(&tosa_ssp_info);
 301 }
 302
 303 type_init(tosa_register_types)