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 "sharpsl.h"
  16 #include "pcmcia.h"
  17 #include "block.h"
  18 #include "boards.h"
  19
  20 #define TOSA_RAM    0x04000000
  21 #define TOSA_ROM        0x00800000
  22
  23 #define TOSA_GPIO_nSD_DETECT    (9)
  24 #define TOSA_GPIO_ON_RESET              (19)
  25 #define TOSA_GPIO_CF_IRQ                (21)    /* CF slot0 Ready */
  26 #define TOSA_GPIO_CF_CD                 (13)
  27 #define TOSA_GPIO_JC_CF_IRQ             (36)    /* CF slot1 Ready */
  28
  29 #define TOSA_SCOOP_GPIO_BASE    0
  30 #define TOSA_GPIO_IR_POWERDWN   (TOSA_SCOOP_GPIO_BASE + 2)
  31 #define TOSA_GPIO_SD_WP                 (TOSA_SCOOP_GPIO_BASE + 3)
  32 #define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)
  33
  34 struct tc6393xb_s {
  35     target_phys_addr_t target_base;
  36 };
  37
  38 static uint32_t tc6393xb_readb(void *opaque, target_phys_addr_t addr)
  39 {
  40     return 3;
  41 }
  42 static void tc6393xb_writeb(void *opaque, target_phys_addr_t addr,
  43         uint32_t value)
  44 {
  45 }
  46 static void tosa_tc6393xb_register(struct pxa2xx_state_s *cpu)
  47 {
  48     int iomemtype;
  49     struct tc6393xb_s *s;
  50     CPUReadMemoryFunc *tc6393xb_readfn[] = {
  51         tc6393xb_readb,
  52         tc6393xb_readb,
  53         tc6393xb_readb,
  54     };
  55     CPUWriteMemoryFunc *tc6393xb_writefn[] = {
  56         tc6393xb_writeb,
  57         tc6393xb_writeb,
  58         tc6393xb_writeb,
  59     };
  60
  61     s = (struct tc6393xb_s *) qemu_mallocz(sizeof(struct tc6393xb_s));
  62     s->target_base = 0x10000000;
  63
  64     iomemtype = cpu_register_io_memory(0, tc6393xb_readfn,
  65                     tc6393xb_writefn, s);
  66     cpu_register_physical_memory(s->target_base, 0x200000, iomemtype);
  67 }
  68
  69 static void tosa_microdrive_attach(struct pxa2xx_state_s *cpu)
  70 {
  71     struct pcmcia_card_s *md;
  72     int index;
  73     BlockDriverState *bs;
  74
  75     index = drive_get_index(IF_IDE, 0, 0);
  76     if (index == -1)
  77         return;
  78     bs = drives_table[index].bdrv;
  79     if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
  80         md = dscm1xxxx_init(bs);
  81         pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
  82     }
  83 }
  84
  85 static void tosa_gpio_setup(struct pxa2xx_state_s *cpu,
  86                 struct scoop_info_s *scp0,
  87                 struct scoop_info_s *scp1)
  88 {
  89     /* MMC/SD host */
  90     pxa2xx_mmci_handlers(cpu->mmc,
  91                     scoop_gpio_in_get(scp0)[TOSA_GPIO_SD_WP],
  92                     qemu_irq_invert(pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_nSD_DETECT]));
  93
  94     /* Handle reset */
  95     pxa2xx_gpio_out_set(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
  96
  97     /* PCMCIA signals: card's IRQ and Card-Detect */
  98     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
  99                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_IRQ],
 100                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_CD]);
 101
 102     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
 103                         pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_JC_CF_IRQ],
 104                         NULL);
 105
 106 }
 107
 108 static struct arm_boot_info tosa_binfo = {
 109     .loader_start = PXA2XX_SDRAM_BASE,
 110     .ram_size = 0x04000000,
 111 };
 112
 113 static void tosa_init(ram_addr_t ram_size, int vga_ram_size,
 114                 const char *boot_device, DisplayState *ds,
 115                 const char *kernel_filename, const char *kernel_cmdline,
 116                 const char *initrd_filename, const char *cpu_model)
 117 {
 118     struct pxa2xx_state_s *cpu;
 119     struct scoop_info_s *scp0, *scp1;
 120
 121     if (ram_size < (TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE)) {
 122         fprintf(stderr, "This platform requires %i bytes of memory\n",
 123                 TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE);
 124         exit(1);
 125     }
 126
 127     if (!cpu_model)
 128         cpu_model = "pxa255";
 129
 130     cpu = pxa255_init(tosa_binfo.ram_size, ds);
 131
 132     cpu_register_physical_memory(0, TOSA_ROM,
 133                     qemu_ram_alloc(TOSA_ROM) | IO_MEM_ROM);
 134
 135     tosa_tc6393xb_register(cpu);
 136
 137     scp0 = scoop_init(cpu, 0, 0x08800000);
 138     scp1 = scoop_init(cpu, 1, 0x14800040);
 139
 140     tosa_gpio_setup(cpu, scp0, scp1);
 141
 142     tosa_microdrive_attach(cpu);
 143
 144     /* Setup initial (reset) machine state */
 145     cpu->env->regs[15] = tosa_binfo.loader_start;
 146
 147     tosa_binfo.kernel_filename = kernel_filename;
 148     tosa_binfo.kernel_cmdline = kernel_cmdline;
 149     tosa_binfo.initrd_filename = initrd_filename;
 150     tosa_binfo.board_id = 0x208;
 151     arm_load_kernel(cpu->env, &tosa_binfo);
 152     sl_bootparam_write(SL_PXA_PARAM_BASE - PXA2XX_SDRAM_BASE);
 153 }
 154
 155 QEMUMachine tosapda_machine = {
 156     "tosa",
 157     "Tosa PDA (PXA255)",
 158     tosa_init,
 159     TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE + RAMSIZE_FIXED,
 160 };