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  * 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.h"
  15 #include "pxa.h"
  16 #include "arm-misc.h"
  17 #include "devices.h"
  18 #include "sharpsl.h"
  19 #include "pcmcia.h"
  20 #include "block.h"
  21 #include "boards.h"
  22 #include "i2c.h"
  23 #include "ssi.h"
  24 #include "blockdev.h"
  25 #include "sysbus.h"
  26 #include "exec-memory.h"
  27
  28 #define TOSA_RAM    0x04000000
  29 #define TOSA_ROM        0x00800000
  30
  31 #define TOSA_GPIO_USB_IN                (5)
  32 #define TOSA_GPIO_nSD_DETECT    (9)
  33 #define TOSA_GPIO_ON_RESET              (19)
  34 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  35 #define TOSA_GPIO_CF_CD                 (13)
  36 #define TOSA_GPIO_TC6393XB_INT  (15)
  37 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  38
  39 #define TOSA_SCOOP_GPIO_BASE    1
  40 #define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  41 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  42 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  43
  44 #define TOSA_SCOOP_JC_GPIO_BASE         1
  45 #define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  46 #define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  47 #define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  48 #define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  49 #define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  50
  51 #define DAC_BASE        0x4e
  52 #define DAC_CH1         0
  53 #define DAC_CH2         1
  54
  55 static void tosa_microdrive_attach(PXA2xxState *cpu)
  56 {
  57     PCMCIACardState *md;
  58     DriveInfo *dinfo;
  59
  60     dinfo = drive_get(IF_IDE, 0, 0);
  61     if (!dinfo || dinfo->media_cd)
  62         return;
  63     md = dscm1xxxx_init(dinfo);
  64     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  65 }
  66
  67 static void tosa_out_switch(void *opaque, int line, int level)
  68 {
  69     switch (line) {
  70         case 0:
  71             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  72             break;
  73         case 1:
  74             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  75             break;
  76         case 2:
  77             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  78             break;
  79         case 3:
  80             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  81             break;
  82         default:
  83             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  84             break;
  85     }
  86 }
  87
  88
  89 static void tosa_gpio_setup(PXA2xxState *cpu,
  90                 DeviceState *scp0,
  91                 DeviceState *scp1,
  92                 TC6393xbState *tmio)
  93 {
  94     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  95     /* MMC/SD host */
  96     pxa2xx_mmci_handlers(cpu->mmc,
  97                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
  98                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
  99
 100     /* Handle reset */
 101     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 102
 103     /* PCMCIA signals: card's IRQ and Card-Detect */
 104     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 105                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
 106                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
 107
 108     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 109                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
 110                         NULL);
 111
 112     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 113     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 114     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 115     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 116
 117     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 118
 119     /* UDC Vbus */
 120     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
 121 }
 122
 123 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 124 {
 125     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 126     return 0;
 127 }
 128
 129 static int tosa_ssp_init(SSISlave *dev)
 130 {
 131     /* Nothing to do.  */
 132     return 0;
 133 }
 134
 135 typedef struct {
 136     i2c_slave i2c;
 137     int len;
 138     char buf[3];
 139 } TosaDACState;
 140
 141 static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
 142 {
 143     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 144     s->buf[s->len] = data;
 145     if (s->len ++ > 2) {
 146 #ifdef VERBOSE
 147         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 148 #endif
 149         return 1;
 150     }
 151
 152     if (s->len == 2) {
 153         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 154                 s->buf[0], s->buf[1]);
 155     }
 156
 157     return 0;
 158 }
 159
 160 static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
 161 {
 162     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 163     s->len = 0;
 164     switch (event) {
 165     case I2C_START_SEND:
 166         break;
 167     case I2C_START_RECV:
 168         printf("%s: recv not supported!!!\n", __FUNCTION__);
 169         break;
 170     case I2C_FINISH:
 171 #ifdef VERBOSE
 172         if (s->len < 2)
 173             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 174         if (s->len > 2)
 175             printf("%s: message too long\n", __FUNCTION__);
 176 #endif
 177         break;
 178     default:
 179         break;
 180     }
 181 }
 182
 183 static int tosa_dac_recv(i2c_slave *s)
 184 {
 185     printf("%s: recv not supported!!!\n", __FUNCTION__);
 186     return -1;
 187 }
 188
 189 static int tosa_dac_init(i2c_slave *i2c)
 190 {
 191     /* Nothing to do.  */
 192     return 0;
 193 }
 194
 195 static void tosa_tg_init(PXA2xxState *cpu)
 196 {
 197     i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 198     i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 199     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 200 }
 201
 202
 203 static struct arm_boot_info tosa_binfo = {
 204     .loader_start = PXA2XX_SDRAM_BASE,
 205     .ram_size = 0x04000000,
 206 };
 207
 208 static void tosa_init(ram_addr_t ram_size,
 209                 const char *boot_device,
 210                 const char *kernel_filename, const char *kernel_cmdline,
 211                 const char *initrd_filename, const char *cpu_model)
 212 {
 213     MemoryRegion *address_space_mem = get_system_memory();
 214     MemoryRegion *rom = g_new(MemoryRegion, 1);
 215     PXA2xxState *cpu;
 216     TC6393xbState *tmio;
 217     DeviceState *scp0, *scp1;
 218
 219     if (!cpu_model)
 220         cpu_model = "pxa255";
 221
 222     cpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
 223
 224     memory_region_init_ram(rom, "tosa.rom", TOSA_ROM);
 225     vmstate_register_ram_global(rom);
 226     memory_region_set_readonly(rom, true);
 227     memory_region_add_subregion(address_space_mem, 0, rom);
 228
 229     tmio = tc6393xb_init(address_space_mem, 0x10000000,
 230             qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_TC6393XB_INT));
 231
 232     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 233     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 234
 235     tosa_gpio_setup(cpu, scp0, scp1, tmio);
 236
 237     tosa_microdrive_attach(cpu);
 238
 239     tosa_tg_init(cpu);
 240
 241     tosa_binfo.kernel_filename = kernel_filename;
 242     tosa_binfo.kernel_cmdline = kernel_cmdline;
 243     tosa_binfo.initrd_filename = initrd_filename;
 244     tosa_binfo.board_id = 0x208;
 245     arm_load_kernel(cpu->env, &tosa_binfo);
 246     sl_bootparam_write(SL_PXA_PARAM_BASE);
 247 }
 248
 249 static QEMUMachine tosapda_machine = {
 250     .name = "tosa",
 251     .desc = "Tosa PDA (PXA255)",
 252     .init = tosa_init,
 253 };
 254
 255 static void tosapda_machine_init(void)
 256 {
 257     qemu_register_machine(&tosapda_machine);
 258 }
 259
 260 machine_init(tosapda_machine_init);
 261
 262 static I2CSlaveInfo tosa_dac_info = {
 263     .qdev.name = "tosa_dac",
 264     .qdev.size = sizeof(TosaDACState),
 265     .init = tosa_dac_init,
 266     .event = tosa_dac_event,
 267     .recv = tosa_dac_recv,
 268     .send = tosa_dac_send
 269 };
 270
 271 static SSISlaveInfo tosa_ssp_info = {
 272     .qdev.name = "tosa-ssp",
 273     .qdev.size = sizeof(SSISlave),
 274     .init = tosa_ssp_init,
 275     .transfer = tosa_ssp_tansfer
 276 };
 277
 278 static void tosa_register_devices(void)
 279 {
 280     i2c_register_slave(&tosa_dac_info);
 281     ssi_register_slave(&tosa_ssp_info);
 282 }
 283
 284 device_init(tosa_register_devices)