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
  23 #define TOSA_RAM    0x04000000
  24 #define TOSA_ROM        0x00800000
  25
  26 #define TOSA_GPIO_nSD_DETECT    (9)
  27 #define TOSA_GPIO_ON_RESET              (19)
  28 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  29 #define TOSA_GPIO_CF_CD                 (13)
  30 #define TOSA_GPIO_TC6393XB_INT  (15)
  31 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  32
  33 #define TOSA_SCOOP_GPIO_BASE    1
  34 #define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  35 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  36 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  37
  38 #define TOSA_SCOOP_JC_GPIO_BASE         1
  39 #define TOSA_GPIO_BT_LED                (TOSA_SCOOP_JC_GPIO_BASE + 0)
  40 #define TOSA_GPIO_NOTE_LED              (TOSA_SCOOP_JC_GPIO_BASE + 1)
  41 #define TOSA_GPIO_CHRG_ERR_LED          (TOSA_SCOOP_JC_GPIO_BASE + 2)
  42 #define TOSA_GPIO_TC6393XB_L3V_ON       (TOSA_SCOOP_JC_GPIO_BASE + 5)
  43 #define TOSA_GPIO_WLAN_LED              (TOSA_SCOOP_JC_GPIO_BASE + 7)
  44
  45 #define DAC_BASE        0x4e
  46 #define DAC_CH1         0
  47 #define DAC_CH2         1
  48
  49 static void tosa_microdrive_attach(PXA2xxState *cpu)
  50 {
  51     PCMCIACardState *md;
  52     BlockDriverState *bs;
  53     DriveInfo *dinfo;
  54
  55     dinfo = drive_get(IF_IDE, 0, 0);
  56     if (!dinfo)
  57         return;
  58     bs = dinfo->bdrv;
  59     if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
  60         md = dscm1xxxx_init(dinfo);
  61         pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  62     }
  63 }
  64
  65 static void tosa_out_switch(void *opaque, int line, int level)
  66 {
  67     switch (line) {
  68         case 0:
  69             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
  70             break;
  71         case 1:
  72             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
  73             break;
  74         case 2:
  75             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
  76             break;
  77         case 3:
  78             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
  79             break;
  80         default:
  81             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
  82             break;
  83     }
  84 }
  85
  86
  87 static void tosa_gpio_setup(PXA2xxState *cpu,
  88                 ScoopInfo *scp0,
  89                 ScoopInfo *scp1,
  90                 TC6393xbState *tmio)
  91 {
  92     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
  93     /* MMC/SD host */
  94     pxa2xx_mmci_handlers(cpu->mmc,
  95                     scoop_gpio_in_get(scp0)[TOSA_GPIO_SD_WP],
  96                     qemu_irq_invert(pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_nSD_DETECT]));
  97
  98     /* Handle reset */
  99     pxa2xx_gpio_out_set(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
 100
 101     /* PCMCIA signals: card's IRQ and Card-Detect */
 102     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
 103                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_IRQ],
 104                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_CD]);
 105
 106     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 107                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_JC_CF_IRQ],
 108                         NULL);
 109
 110     scoop_gpio_out_set(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
 111     scoop_gpio_out_set(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
 112     scoop_gpio_out_set(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
 113     scoop_gpio_out_set(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
 114
 115     scoop_gpio_out_set(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
 116 }
 117
 118 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
 119 {
 120     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
 121     return 0;
 122 }
 123
 124 static int tosa_ssp_init(SSISlave *dev)
 125 {
 126     /* Nothing to do.  */
 127     return 0;
 128 }
 129
 130 typedef struct {
 131     i2c_slave i2c;
 132     int len;
 133     char buf[3];
 134 } TosaDACState;
 135
 136 static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
 137 {
 138     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 139     s->buf[s->len] = data;
 140     if (s->len ++ > 2) {
 141 #ifdef VERBOSE
 142         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 143 #endif
 144         return 1;
 145     }
 146
 147     if (s->len == 2) {
 148         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 149                 s->buf[0], s->buf[1]);
 150     }
 151
 152     return 0;
 153 }
 154
 155 static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
 156 {
 157     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 158     s->len = 0;
 159     switch (event) {
 160     case I2C_START_SEND:
 161         break;
 162     case I2C_START_RECV:
 163         printf("%s: recv not supported!!!\n", __FUNCTION__);
 164         break;
 165     case I2C_FINISH:
 166 #ifdef VERBOSE
 167         if (s->len < 2)
 168             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 169         if (s->len > 2)
 170             printf("%s: message too long\n", __FUNCTION__);
 171 #endif
 172         break;
 173     default:
 174         break;
 175     }
 176 }
 177
 178 static int tosa_dac_recv(i2c_slave *s)
 179 {
 180     printf("%s: recv not supported!!!\n", __FUNCTION__);
 181     return -1;
 182 }
 183
 184 static int tosa_dac_init(i2c_slave *i2c)
 185 {
 186     /* Nothing to do.  */
 187     return 0;
 188 }
 189
 190 static void tosa_tg_init(PXA2xxState *cpu)
 191 {
 192     i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 193     i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 194     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 195 }
 196
 197
 198 static struct arm_boot_info tosa_binfo = {
 199     .loader_start = PXA2XX_SDRAM_BASE,
 200     .ram_size = 0x04000000,
 201 };
 202
 203 static void tosa_init(ram_addr_t ram_size,
 204                 const char *boot_device,
 205                 const char *kernel_filename, const char *kernel_cmdline,
 206                 const char *initrd_filename, const char *cpu_model)
 207 {
 208     PXA2xxState *cpu;
 209     TC6393xbState *tmio;
 210     ScoopInfo *scp0, *scp1;
 211
 212     if (!cpu_model)
 213         cpu_model = "pxa255";
 214
 215     cpu = pxa255_init(tosa_binfo.ram_size);
 216
 217     cpu_register_physical_memory(0, TOSA_ROM,
 218                     qemu_ram_alloc(TOSA_ROM) | IO_MEM_ROM);
 219
 220     tmio = tc6393xb_init(0x10000000,
 221             pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_TC6393XB_INT]);
 222
 223     scp0 = scoop_init(cpu, 0, 0x08800000);
 224     scp1 = scoop_init(cpu, 1, 0x14800040);
 225
 226     tosa_gpio_setup(cpu, scp0, scp1, tmio);
 227
 228     tosa_microdrive_attach(cpu);
 229
 230     tosa_tg_init(cpu);
 231
 232     /* Setup initial (reset) machine state */
 233     cpu->env->regs[15] = tosa_binfo.loader_start;
 234
 235     tosa_binfo.kernel_filename = kernel_filename;
 236     tosa_binfo.kernel_cmdline = kernel_cmdline;
 237     tosa_binfo.initrd_filename = initrd_filename;
 238     tosa_binfo.board_id = 0x208;
 239     arm_load_kernel(cpu->env, &tosa_binfo);
 240     sl_bootparam_write(SL_PXA_PARAM_BASE);
 241 }
 242
 243 static QEMUMachine tosapda_machine = {
 244     .name = "tosa",
 245     .desc = "Tosa PDA (PXA255)",
 246     .init = tosa_init,
 247 };
 248
 249 static void tosapda_machine_init(void)
 250 {
 251     qemu_register_machine(&tosapda_machine);
 252 }
 253
 254 machine_init(tosapda_machine_init);
 255
 256 static I2CSlaveInfo tosa_dac_info = {
 257     .qdev.name = "tosa_dac",
 258     .qdev.size = sizeof(TosaDACState),
 259     .init = tosa_dac_init,
 260     .event = tosa_dac_event,
 261     .recv = tosa_dac_recv,
 262     .send = tosa_dac_send
 263 };
 264
 265 static SSISlaveInfo tosa_ssp_info = {
 266     .qdev.name = "tosa-ssp",
 267     .qdev.size = sizeof(SSISlave),
 268     .init = tosa_ssp_init,
 269     .transfer = tosa_ssp_tansfer
 270 };
 271
 272 static void tosa_register_devices(void)
 273 {
 274     i2c_register_slave(&tosa_dac_info);
 275     ssi_register_slave(&tosa_ssp_info);
 276 }
 277
 278 device_init(tosa_register_devices)