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     int index;
  53     BlockDriverState *bs;
  54
  55     index = drive_get_index(IF_IDE, 0, 0);
  56     if (index == -1)
  57         return;
  58     bs = drives_table[index].bdrv;
  59     if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
  60         md = dscm1xxxx_init(bs);
  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 void tosa_ssp_init(SSISlave *dev)
 125 {
 126     /* Nothing to do.  */
 127 }
 128
 129 typedef struct {
 130     i2c_slave i2c;
 131     int len;
 132     char buf[3];
 133 } TosaDACState;
 134
 135 static int tosa_dac_send(i2c_slave *i2c, uint8_t data)
 136 {
 137     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 138     s->buf[s->len] = data;
 139     if (s->len ++ > 2) {
 140 #ifdef VERBOSE
 141         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
 142 #endif
 143         return 1;
 144     }
 145
 146     if (s->len == 2) {
 147         fprintf(stderr, "dac: channel %d value 0x%02x\n",
 148                 s->buf[0], s->buf[1]);
 149     }
 150
 151     return 0;
 152 }
 153
 154 static void tosa_dac_event(i2c_slave *i2c, enum i2c_event event)
 155 {
 156     TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
 157     s->len = 0;
 158     switch (event) {
 159     case I2C_START_SEND:
 160         break;
 161     case I2C_START_RECV:
 162         printf("%s: recv not supported!!!\n", __FUNCTION__);
 163         break;
 164     case I2C_FINISH:
 165 #ifdef VERBOSE
 166         if (s->len < 2)
 167             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
 168         if (s->len > 2)
 169             printf("%s: message too long\n", __FUNCTION__);
 170 #endif
 171         break;
 172     default:
 173         break;
 174     }
 175 }
 176
 177 static int tosa_dac_recv(i2c_slave *s)
 178 {
 179     printf("%s: recv not supported!!!\n", __FUNCTION__);
 180     return -1;
 181 }
 182
 183 static void tosa_dac_init(i2c_slave *i2c)
 184 {
 185     /* Nothing to do.  */
 186 }
 187
 188 static void tosa_tg_init(PXA2xxState *cpu)
 189 {
 190     i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
 191     i2c_create_slave(bus, "tosa_dac", DAC_BASE);
 192     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 193 }
 194
 195
 196 static struct arm_boot_info tosa_binfo = {
 197     .loader_start = PXA2XX_SDRAM_BASE,
 198     .ram_size = 0x04000000,
 199 };
 200
 201 static void tosa_init(ram_addr_t ram_size,
 202                 const char *boot_device,
 203                 const char *kernel_filename, const char *kernel_cmdline,
 204                 const char *initrd_filename, const char *cpu_model)
 205 {
 206     PXA2xxState *cpu;
 207     TC6393xbState *tmio;
 208     ScoopInfo *scp0, *scp1;
 209
 210     if (!cpu_model)
 211         cpu_model = "pxa255";
 212
 213     cpu = pxa255_init(tosa_binfo.ram_size);
 214
 215     cpu_register_physical_memory(0, TOSA_ROM,
 216                     qemu_ram_alloc(TOSA_ROM) | IO_MEM_ROM);
 217
 218     tmio = tc6393xb_init(0x10000000,
 219             pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_TC6393XB_INT]);
 220
 221     scp0 = scoop_init(cpu, 0, 0x08800000);
 222     scp1 = scoop_init(cpu, 1, 0x14800040);
 223
 224     tosa_gpio_setup(cpu, scp0, scp1, tmio);
 225
 226     tosa_microdrive_attach(cpu);
 227
 228     tosa_tg_init(cpu);
 229
 230     /* Setup initial (reset) machine state */
 231     cpu->env->regs[15] = tosa_binfo.loader_start;
 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 QEMUMachine tosapda_machine = {
 242     .name = "tosa",
 243     .desc = "Tosa PDA (PXA255)",
 244     .init = tosa_init,
 245 };
 246
 247 static I2CSlaveInfo tosa_dac_info = {
 248     .init = tosa_dac_init,
 249     .event = tosa_dac_event,
 250     .recv = tosa_dac_recv,
 251     .send = tosa_dac_send
 252 };
 253
 254 static SSISlaveInfo tosa_ssp_info = {
 255     .init = tosa_ssp_init,
 256     .transfer = tosa_ssp_tansfer
 257 };
 258
 259 static void tosa_register_devices(void)
 260 {
 261     i2c_register_slave("tosa_dac", sizeof(TosaDACState), &tosa_dac_info);
 262     ssi_register_slave("tosa-ssp", sizeof(SSISlave), &tosa_ssp_info);
 263 }
 264
 265 device_init(tosa_register_devices)