void powerpc_ipc(volatile ipc_request *req)
{
switch (req->req) {
case IPC_PPC_BOOT:
if (req->args[0]) {
// Enqueued from ARM side, do not invalidate mem nor ipc_post
powerpc_boot_mem((u8 *) req->args[1], req->args[2]);
} else {
dc_invalidaterange((void *) req->args[1], req->args[2]);
int res = powerpc_boot_mem((u8 *) req->args[1], req->args[2]);
if (res)
ipc_post(req->code, req->tag, 1, res);
}
break;
case IPC_PPC_BOOT_FILE:
if (req->args[0]) {
// Enqueued from ARM side, do not invalidate mem nor ipc_post
powerpc_boot_file((char *) req->args[1]);
} else {
dc_invalidaterange((void *) req->args[1],
strnlen((char *) req->args[1], 256));
int res = powerpc_boot_file((char *) req->args[1]);
if (res)
ipc_post(req->code, req->tag, 1, res);
}
break;
default:
gecko_printf("IPC: unknown SLOW PPC request %04X\n", req->req);
}
}
u32 _main(void *base)
{
FRESULT fres;
int res;
u32 vector;
(void)base;
gecko_init();
gecko_printf("mini %s loading\n", git_version);
gecko_printf("Initializing exceptions...\n");
exception_initialize();
gecko_printf("Configuring caches and MMU...\n");
mem_initialize();
gecko_printf("IOSflags: %08x %08x %08x\n",
read32(0xffffff00), read32(0xffffff04), read32(0xffffff08));
gecko_printf(" %08x %08x %08x\n",
read32(0xffffff0c), read32(0xffffff10), read32(0xffffff14));
irq_initialize();
irq_enable(IRQ_TIMER);
// irq_enable(IRQ_GPIO1B);
irq_enable(IRQ_GPIO1);
irq_enable(IRQ_RESET);
gecko_timer_initialize();
gecko_printf("Interrupts initialized\n");
crypto_initialize();
gecko_printf("crypto support initialized\n");
nand_initialize();
gecko_printf("NAND initialized.\n");
boot2_init();
gecko_printf("Initializing IPC...\n");
ipc_initialize();
gecko_printf("Initializing SDHC...\n");
sdhc_init();
gecko_printf("Mounting SD...\n");
fres = f_mount(0, &fatfs);
if (read32(0x0d800190) & 2) {
gecko_printf("GameCube compatibility mode detected...\n");
vector = boot2_run(1, 0x101);
goto shutdown;
}
if(fres != FR_OK) {
gecko_printf("Error %d while trying to mount SD\n", fres);
panic2(0, PANIC_MOUNT);
}
gecko_printf("Trying to boot:" PPC_BOOT_FILE "\n");
res = powerpc_boot_file(PPC_BOOT_FILE);
if(res < 0) {
gecko_printf("Failed to boot PPC: %d\n", res);
gecko_printf("Continuing anyway\n");
}
gecko_printf("Going into IPC mainloop...\n");
vector = ipc_process_slow();
gecko_printf("IPC mainloop done!\n");
gecko_printf("Shutting down IPC...\n");
ipc_shutdown();
shutdown:
gecko_printf("Shutting down interrupts...\n");
irq_shutdown();
gecko_printf("Shutting down caches and MMU...\n");
mem_shutdown();
gecko_printf("Vectoring to 0x%08x...\n", vector);
return vector;
}