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