hw/palm.c

   1 /*
   2  * PalmOne's (TM) PDAs.
   3  *
   4  * Copyright (C) 2006-2007 Andrzej Zaborowski  <balrog@zabor.org>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21 #include "vl.h"
  22
  23 static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
  24 {
  25     uint32_t *val = (uint32_t *) opaque;
  26     return *val >> ((offset & 3) << 3);
  27 }
  28
  29 static uint32_t static_readh(void *opaque, target_phys_addr_t offset) {
  30     uint32_t *val = (uint32_t *) opaque;
  31     return *val >> ((offset & 1) << 3);
  32 }
  33
  34 static uint32_t static_readw(void *opaque, target_phys_addr_t offset) {
  35     uint32_t *val = (uint32_t *) opaque;
  36     return *val >> ((offset & 0) << 3);
  37 }
  38
  39 static void static_write(void *opaque, target_phys_addr_t offset,
  40                 uint32_t value) {
  41 #ifdef SPY
  42     printf("%s: value %08lx written at " PA_FMT "\n",
  43                     __FUNCTION__, value, offset);
  44 #endif
  45 }
  46
  47 static CPUReadMemoryFunc *static_readfn[] = {
  48     static_readb,
  49     static_readh,
  50     static_readw,
  51 };
  52
  53 static CPUWriteMemoryFunc *static_writefn[] = {
  54     static_write,
  55     static_write,
  56     static_write,
  57 };
  58
  59 /* Palm Tunsgten|E support */
  60 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  61 {
  62 }
  63
  64 static void palmte_init(int ram_size, int vga_ram_size, int boot_device,
  65                 DisplayState *ds, const char **fd_filename, int snapshot,
  66                 const char *kernel_filename, const char *kernel_cmdline,
  67                 const char *initrd_filename, const char *cpu_model)
  68 {
  69     struct omap_mpu_state_s *cpu;
  70     int flash_size = 0x00800000;
  71     int sdram_size = 0x02000000;
  72     int io;
  73     static uint32_t cs0val = 0xffffffff;
  74     static uint32_t cs1val = 0x0000e1a0;
  75     static uint32_t cs2val = 0x0000e1a0;
  76     static uint32_t cs3val = 0xe1a0e1a0;
  77     ram_addr_t phys_flash;
  78     int rom_size, rom_loaded = 0;
  79
  80     if (ram_size < flash_size + sdram_size + OMAP15XX_SRAM_SIZE) {
  81         fprintf(stderr, "This architecture uses %i bytes of memory\n",
  82                         flash_size + sdram_size + OMAP15XX_SRAM_SIZE);
  83         exit(1);
  84     }
  85
  86     cpu = omap310_mpu_init(sdram_size, ds, cpu_model);
  87
  88     /* External Flash (EMIFS) */
  89     cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
  90                     (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
  91
  92     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs0val);
  93     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
  94                     OMAP_CS0_SIZE - flash_size, io);
  95     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs1val);
  96     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
  97     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs2val);
  98     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
  99     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs3val);
 100     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 101
 102     palmte_microwire_setup(cpu);
 103
 104     /* Setup initial (reset) machine state */
 105     if (nb_option_roms) {
 106         rom_size = get_image_size(option_rom[0]);
 107         if (rom_size > flash_size)
 108             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 109                             __FUNCTION__, rom_size, flash_size);
 110         else if (rom_size > 0 && load_image(option_rom[0],
 111                                 phys_ram_base + phys_flash) > 0) {
 112             rom_loaded = 1;
 113             cpu->env->regs[15] = 0x00000000;
 114         } else
 115             fprintf(stderr, "%s: error loading '%s'\n",
 116                             __FUNCTION__, option_rom[0]);
 117     }
 118
 119     if (!rom_loaded && !kernel_filename) {
 120         fprintf(stderr, "Kernel or ROM image must be specified\n");
 121         exit(1);
 122     }
 123
 124     /* Load the kernel.  */
 125     if (kernel_filename) {
 126         /* Start at bootloader.  */
 127         cpu->env->regs[15] = OMAP_EMIFF_BASE;
 128
 129         arm_load_kernel(cpu->env, sdram_size, kernel_filename, kernel_cmdline,
 130                         initrd_filename, 0x331, OMAP_EMIFF_BASE);
 131     }
 132
 133     dpy_resize(ds, 320, 320);
 134 }
 135
 136 QEMUMachine palmte_machine = {
 137     "cheetah",
 138     "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 139     palmte_init,
 140 };