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
  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
  90 static void tosa_gpio_setup(PXA2xxState *cpu,
  91                 DeviceState *scp0,
  92                 DeviceState *scp1,
  93                 TC6393xbState *tmio)
  94 {
  95     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  96     /* MMC/SD host */
  97     pxa2xx_mmci_handlers(cpu->mmc,
  98                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  99                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
 100
 101     /* Handle reset */
 102     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 103
 104     /* PCMCIA signals: card's IRQ and Card-Detect */
 105     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 106                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 107                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 108
 109     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 110                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 111                         NULL);
 112
 113     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 114     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 115     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 116     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 117
 118     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 119
 120     /* UDC Vbus */
 121     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 122 }
 123
 124 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 125 {
 126     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 127     return 0;
 128 }
 129
 130 static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 131 {
 132     /* Nothing to do.  */
 133 }
 134
 135 #define TYPE_TOSA_DAC "tosa_dac"
 136 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
 137
 138 typedef struct {
 139     I2CSlave parent_obj;
 140
 141     int len;
 142     char buf[3];
 143 } TosaDACState;
 144
 145 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 146 {
 147     TosaDACState *s = TOSA_DAC(i2c);
 148
 149     s->buf[s->len] = data;
 150     if (s->len ++ > 2) {
 151 #ifdef VERBOSE
 152         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 153 #endif
 154         return 1;
 155     }
 156
 157     if (s->len == 2) {
 158         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 159                 s->buf[0], s->buf[1]);
 160     }
 161
 162     return 0;
 163 }
 164
 165 static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
 166 {
 167     TosaDACState *s = TOSA_DAC(i2c);
 168
 169     s->len = 0;
 170     switch (event) {
 171     case I2C_START_SEND:
 172         break;
 173     case I2C_START_RECV:
 174         printf("%s: recv not supported!!!\n", __FUNCTION__);
 175         break;
 176     case I2C_FINISH:
 177 #ifdef VERBOSE
 178         if (s->len < 2)
 179             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 180         if (s->len > 2)
 181             printf("%s: message too long\n", __FUNCTION__);
 182 #endif
 183         break;
 184     default:
 185         break;
 186     }
 187 }
 188
 189 static int tosa_dac_recv(I2CSlave *s)
 190 {
 191     printf("%s: recv not supported!!!\n", __FUNCTION__);
 192     return -1;
 193 }
 194
 195 static int tosa_dac_init(I2CSlave *i2c)
 196 {
 197     /* Nothing to do.  */
 198     return 0;
 199 }
 200
 201 static void tosa_tg_init(PXA2xxState *cpu)
 202 {
 203     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 204     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
 205     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 206 }
 207
 208
 209 static struct arm_boot_info tosa_binfo = {
 210     .loader_start = PXA2XX_SDRAM_BASE,
 211     .ram_size = 0x04000000,
 212 };
 213
 214 static void tosa_init(MachineState *machine)
 215 {
 216     const char *cpu_model = machine->cpu_model;
 217     const char *kernel_filename = machine->kernel_filename;
 218     const char *kernel_cmdline = machine->kernel_cmdline;
 219     const char *initrd_filename = machine->initrd_filename;
 220     MemoryRegion *address_space_mem = get_system_memory();
 221     MemoryRegion *rom = g_new(MemoryRegion, 1);
 222     PXA2xxState *mpu;
 223     TC6393xbState *tmio;
 224     DeviceState *scp0, *scp1;
 225
 226     if (!cpu_model)
 227         cpu_model = "pxa255";
 228
 229     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 230
 231     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
 232     vmstate_register_ram_global(rom);
 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 }
 261
 262 DEFINE_MACHINE("tosa", tosapda_machine_init)
 263
 264 static void tosa_dac_class_init(ObjectClass *klass, void *data)
 265 {
 266     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 267
 268     k->init = tosa_dac_init;
 269     k->event = tosa_dac_event;
 270     k->recv = tosa_dac_recv;
 271     k->send = tosa_dac_send;
 272 }
 273
 274 static const TypeInfo tosa_dac_info = {
 275     .name          = TYPE_TOSA_DAC,
 276     .parent        = TYPE_I2C_SLAVE,
 277     .instance_size = sizeof(TosaDACState),
 278     .class_init    = tosa_dac_class_init,
 279 };
 280
 281 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
 282 {
 283     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 284
 285     k->realize = tosa_ssp_realize;
 286     k->transfer = tosa_ssp_tansfer;
 287 }
 288
 289 static const TypeInfo tosa_ssp_info = {
 290     .name          = "tosa-ssp",
 291     .parent        = TYPE_SSI_SLAVE,
 292     .instance_size = sizeof(SSISlave),
 293     .class_init    = tosa_ssp_class_init,
 294 };
 295
 296 static void tosa_register_types(void)
 297 {
 298     type_register_static(&tosa_dac_info);
 299     type_register_static(&tosa_ssp_info);
 300 }
 301
 302 type_init(tosa_register_types)