hw/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
  11 #include "hw.h"
  12 #include "pxa.h"
  13 #include "arm-misc.h"
  14 #include "devices.h"
  15 #include "sharpsl.h"
  16 #include "pcmcia.h"
  17 #include "block.h"
  18 #include "boards.h"
  19 #include "i2c.h"
  20 #include "ssi.h"
  21 #include "blockdev.h"
  22 #include "sysbus.h"
  23 #include "exec-memory.h"
  24
  25 #define TOSA_RAM    0x04000000
  26 #define TOSA_ROM        0x00800000
  27
  28 #define TOSA_GPIO_USB_IN                (5)
  29 #define TOSA_GPIO_nSD_DETECT    (9)
  30 #define TOSA_GPIO_ON_RESET              (19)
  31 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  32 #define TOSA_GPIO_CF_CD                 (13)
  33 #define TOSA_GPIO_TC6393XB_INT  (15)
  34 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  35
  36 #define TOSA_SCOOP_GPIO_BASE    1
  37 #define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  38 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  39 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  40
  41 #define TOSA_SCOOP_JC_GPIO_BASE         1
  42 #define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  43 #define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  44 #define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  45 #define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  46 #define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  47
  48 #define DAC_BASE        0x4e
  49 #define DAC_CH1         0
  50 #define DAC_CH2         1
  51
  52 static void tosa_microdrive_attach(PXA2xxState *cpu)
  53 {
  54     PCMCIACardState *md;
  55     DriveInfo *dinfo;
  56
  57     dinfo = drive_get(IF_IDE, 0, 0);
  58     if (!dinfo || dinfo->media_cd)
  59         return;
  60     md = dscm1xxxx_init(dinfo);
  61     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  62 }
  63
  64 static void tosa_out_switch(void *opaque, int line, int level)
  65 {
  66     switch (line) {
  67         case 0:
  68             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  69             break;
  70         case 1:
  71             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  72             break;
  73         case 2:
  74             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  75             break;
  76         case 3:
  77             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  78             break;
  79         default:
  80             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  81             break;
  82     }
  83 }
  84
  85
  86 static void tosa_gpio_setup(PXA2xxState *cpu,
  87                 DeviceState *scp0,
  88                 DeviceState *scp1,
  89                 TC6393xbState *tmio)
  90 {
  91     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  92     /* MMC/SD host */
  93     pxa2xx_mmci_handlers(cpu->mmc,
  94                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  95                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
  96
  97     /* Handle reset */
  98     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
  99
 100     /* PCMCIA signals: card's IRQ and Card-Detect */
 101     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 102                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 103                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 104
 105     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 106                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 107                         NULL);
 108
 109     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 110     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 111     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 112     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 113
 114     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 115
 116     /* UDC Vbus */
 117     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 118 }
 119
 120 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 121 {
 122     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 123     return 0;
 124 }
 125
 126 static int tosa_ssp_init(SSISlave *dev)
 127 {
 128     /* Nothing to do.  */
 129     return 0;
 130 }
 131
 132 typedef struct {
 133     i2c_slave i2c;
 134     int len;
 135     char buf[3];
 136 } TosaDACState;
 137
 138 static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
 139 {
 140     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 141     s->buf[s->len] = data;
 142     if (s->len ++ > 2) {
 143 #ifdef VERBOSE
 144         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 145 #endif
 146         return 1;
 147     }
 148
 149     if (s->len == 2) {
 150         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 151                 s->buf[0], s->buf[1]);
 152     }
 153
 154     return 0;
 155 }
 156
 157 static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
 158 {
 159     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 160     s->len = 0;
 161     switch (event) {
 162     case I2C_START_SEND:
 163         break;
 164     case I2C_START_RECV:
 165         printf("%s: recv not supported!!!\n", __FUNCTION__);
 166         break;
 167     case I2C_FINISH:
 168 #ifdef VERBOSE
 169         if (s->len < 2)
 170             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 171         if (s->len > 2)
 172             printf("%s: message too long\n", __FUNCTION__);
 173 #endif
 174         break;
 175     default:
 176         break;
 177     }
 178 }
 179
 180 static int tosa_dac_recv(i2c_slave *s)
 181 {
 182     printf("%s: recv not supported!!!\n", __FUNCTION__);
 183     return -1;
 184 }
 185
 186 static int tosa_dac_init(i2c_slave *i2c)
 187 {
 188     /* Nothing to do.  */
 189     return 0;
 190 }
 191
 192 static void tosa_tg_init(PXA2xxState *cpu)
 193 {
 194     i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 195     i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 196     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 197 }
 198
 199
 200 static struct arm_boot_info tosa_binfo = {
 201     .loader_start = PXA2XX_SDRAM_BASE,
 202     .ram_size = 0x04000000,
 203 };
 204
 205 static void tosa_init(ram_addr_t ram_size,
 206                 const char *boot_device,
 207                 const char *kernel_filename, const char *kernel_cmdline,
 208                 const char *initrd_filename, const char *cpu_model)
 209 {
 210     MemoryRegion *address_space_mem = get_system_memory();
 211     MemoryRegion *rom = g_new(MemoryRegion, 1);
 212     PXA2xxState *cpu;
 213     TC6393xbState *tmio;
 214     DeviceState *scp0, *scp1;
 215
 216     if (!cpu_model)
 217         cpu_model = "pxa255";
 218
 219     cpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 220
 221     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM);
 222     memory_region_set_readonly(rom, true);
 223     memory_region_add_subregion(address_space_mem, 0, rom);
 224
 225     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 226             qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_TC6393XB_INT));
 227
 228     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 229     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 230
 231     tosa_gpio_setup(cpu, scp0, scp1, tmio);
 232
 233     tosa_microdrive_attach(cpu);
 234
 235     tosa_tg_init(cpu);
 236
 237     tosa_binfo.kernel_filename = kernel_filename;
 238     tosa_binfo.kernel_cmdline = kernel_cmdline;
 239     tosa_binfo.initrd_filename = initrd_filename;
 240     tosa_binfo.board_id = 0x208;
 241     arm_load_kernel(cpu->env, &tosa_binfo);
 242     sl_bootparam_write(SL_PXA_PARAM_BASE);
 243 }
 244
 245 static QEMUMachine tosapda_machine = {
 246     .name = "tosa",
 247     .desc = "Tosa PDA (PXA255)",
 248     .init = tosa_init,
 249 };
 250
 251 static void tosapda_machine_init(void)
 252 {
 253     qemu_register_machine(&tosapda_machine);
 254 }
 255
 256 machine_init(tosapda_machine_init);
 257
 258 static I2CSlaveInfo tosa_dac_info = {
 259     .qdev.name = "tosa_dac",
 260     .qdev.size = sizeof(TosaDACState),
 261     .init = tosa_dac_init,
 262     .event = tosa_dac_event,
 263     .recv = tosa_dac_recv,
 264     .send = tosa_dac_send
 265 };
 266
 267 static SSISlaveInfo tosa_ssp_info = {
 268     .qdev.name = "tosa-ssp",
 269     .qdev.size = sizeof(SSISlave),
 270     .init = tosa_ssp_init,
 271     .transfer = tosa_ssp_tansfer
 272 };
 273
 274 static void tosa_register_devices(void)
 275 {
 276     i2c_register_slave(&tosa_dac_info);
 277     ssi_register_slave(&tosa_ssp_info);
 278 }
 279
 280 device_init(tosa_register_devices)