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 "sysemu.h"
  15 #include "devices.h"
  16 #include "sharpsl.h"
  17 #include "pcmcia.h"
  18 #include "block.h"
  19 #include "boards.h"
  20 #include "i2c.h"
  21 #include "ssi.h"
  22 #include "blockdev.h"
  23 #include "sysbus.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     BlockDriverState *bs;
  56     DriveInfo *dinfo;
  57
  58     dinfo = drive_get(IF_IDE, 0, 0);
  59     if (!dinfo)
  60         return;
  61     bs = dinfo->bdrv;
  62     if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
  63         md = dscm1xxxx_init(dinfo);
  64         pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  65     }
  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 int tosa_ssp_init(SSISlave *dev)
 131 {
 132     /* Nothing to do.  */
 133     return 0;
 134 }
 135
 136 typedef struct {
 137     i2c_slave i2c;
 138     int len;
 139     char buf[3];
 140 } TosaDACState;
 141
 142 static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
 143 {
 144     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 145     s->buf[s->len] = data;
 146     if (s->len ++ > 2) {
 147 #ifdef VERBOSE
 148         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 149 #endif
 150         return 1;
 151     }
 152
 153     if (s->len == 2) {
 154         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 155                 s->buf[0], s->buf[1]);
 156     }
 157
 158     return 0;
 159 }
 160
 161 static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
 162 {
 163     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 164     s->len = 0;
 165     switch (event) {
 166     case I2C_START_SEND:
 167         break;
 168     case I2C_START_RECV:
 169         printf("%s: recv not supported!!!\n", __FUNCTION__);
 170         break;
 171     case I2C_FINISH:
 172 #ifdef VERBOSE
 173         if (s->len < 2)
 174             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 175         if (s->len > 2)
 176             printf("%s: message too long\n", __FUNCTION__);
 177 #endif
 178         break;
 179     default:
 180         break;
 181     }
 182 }
 183
 184 static int tosa_dac_recv(i2c_slave *s)
 185 {
 186     printf("%s: recv not supported!!!\n", __FUNCTION__);
 187     return -1;
 188 }
 189
 190 static int tosa_dac_init(i2c_slave *i2c)
 191 {
 192     /* Nothing to do.  */
 193     return 0;
 194 }
 195
 196 static void tosa_tg_init(PXA2xxState *cpu)
 197 {
 198     i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 199     i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 200     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 201 }
 202
 203
 204 static struct arm_boot_info tosa_binfo = {
 205     .loader_start = PXA2XX_SDRAM_BASE,
 206     .ram_size = 0x04000000,
 207 };
 208
 209 static void tosa_init(ram_addr_t ram_size,
 210                 const char *boot_device,
 211                 const char *kernel_filename, const char *kernel_cmdline,
 212                 const char *initrd_filename, const char *cpu_model)
 213 {
 214     PXA2xxState *cpu;
 215     TC6393xbState *tmio;
 216     DeviceState *scp0, *scp1;
 217
 218     if (!cpu_model)
 219         cpu_model = "pxa255";
 220
 221     cpu = pxa255_init(tosa_binfo.ram_size);
 222
 223     cpu_register_physical_memory(0, TOSA_ROM,
 224                     qemu_ram_alloc(NULL, "tosa.rom", TOSA_ROM) | IO_MEM_ROM);
 225
 226     tmio = tc6393xb_init(0x10000000,
 227             qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_TC6393XB_INT));
 228
 229     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
 230     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
 231
 232     tosa_gpio_setup(cpu, scp0, scp1, tmio);
 233
 234     tosa_microdrive_attach(cpu);
 235
 236     tosa_tg_init(cpu);
 237
 238     tosa_binfo.kernel_filename = kernel_filename;
 239     tosa_binfo.kernel_cmdline = kernel_cmdline;
 240     tosa_binfo.initrd_filename = initrd_filename;
 241     tosa_binfo.board_id = 0x208;
 242     arm_load_kernel(cpu->env, &tosa_binfo);
 243     sl_bootparam_write(SL_PXA_PARAM_BASE);
 244 }
 245
 246 static QEMUMachine tosapda_machine = {
 247     .name = "tosa",
 248     .desc = "Tosa PDA (PXA255)",
 249     .init = tosa_init,
 250 };
 251
 252 static void tosapda_machine_init(void)
 253 {
 254     qemu_register_machine(&tosapda_machine);
 255 }
 256
 257 machine_init(tosapda_machine_init);
 258
 259 static I2CSlaveInfo tosa_dac_info = {
 260     .qdev.name = "tosa_dac",
 261     .qdev.size = sizeof(TosaDACState),
 262     .init = tosa_dac_init,
 263     .event = tosa_dac_event,
 264     .recv = tosa_dac_recv,
 265     .send = tosa_dac_send
 266 };
 267
 268 static SSISlaveInfo tosa_ssp_info = {
 269     .qdev.name = "tosa-ssp",
 270     .qdev.size = sizeof(SSISlave),
 271     .init = tosa_ssp_init,
 272     .transfer = tosa_ssp_tansfer
 273 };
 274
 275 static void tosa_register_devices(void)
 276 {
 277     i2c_register_slave(&tosa_dac_info);
 278     ssi_register_slave(&tosa_ssp_info);
 279 }
 280
 281 device_init(tosa_register_devices)