Ejemplo n.º 1
0
void
mach_init(void)
{
	void *kernend;
	uint32_t memsize;
	extern char edata[], end[];	/* XXX */

	/* clear the BSS segment */
	kernend = (void *)mips_round_page(end);

	memset(edata, 0, (char *)kernend - edata);

	/* setup early console */
	ingenic_putchar_init();

	/* set CPU model info for sysctl_hw */
	cpu_setmodel("Ingenic XBurst");
	mips_vector_init(NULL, false);
	cal_timer();
	uvm_setpagesize();
	/*
	 * Look at arguments passed to us and compute boothowto.
	 */
	boothowto = RB_AUTOBOOT;
#ifdef KADB
	boothowto |= RB_KDB;
#endif

	/*
	 * Determine the memory size.
	 *
	 * Note: Reserve the first page!  That's where the trap
	 * vectors are located.
	 */
	memsize = 0x40000000;

	printf("Memory size: 0x%08x\n", memsize);
	physmem = btoc(memsize);

	/*
	 * memory is at 0x20000000 with first 256MB mirrored to 0x00000000 so
	 * we can see them through KSEG*
	 * assume 1GB for now, the SoC can theoretically support up to 3GB
	 */
	mem_clusters[0].start = PAGE_SIZE;
	mem_clusters[0].size = 0x10000000 - PAGE_SIZE;
	mem_clusters[1].start = 0x30000000;
	mem_clusters[1].size = 0x30000000;
	mem_cluster_cnt = 2;

	/*
	 * Load the available pages into the VM system.
	 */
	mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
	    mem_clusters, mem_cluster_cnt, NULL, 0);

	/*
	 * Initialize message buffer (at end of core).
	 */
	mips_init_msgbuf();

	/*
	 * Initialize the virtual memory system.
	 */
	pmap_bootstrap();

	/*
	 * Allocate uarea page for lwp0 and set it.
	 */
	mips_init_lwp0_uarea();

#ifdef MULTIPROCESSOR
	mutex_init(&ingenic_ipi_lock, MUTEX_DEFAULT, IPL_HIGH);
	mips_locoresw.lsw_send_ipi = ingenic_send_ipi;
	mips_locoresw.lsw_cpu_init = ingenic_cpu_init;
#endif

	apbus_init();
	/*
	 * Initialize debuggers, and break into them, if appropriate.
	 */
#ifdef DDB
	if (boothowto & RB_KDB)
		Debugger();
#endif
}
Ejemplo n.º 2
0
void
mach_init(void)
{
	void *kernend;
	uint32_t memsize;
	extern char edata[], end[];	/* XXX */

	/* clear the BSS segment */
	kernend = (void *)mips_round_page(end);

	memset(edata, 0, (char *)kernend - edata);

	/* setup early console */
	ingenic_putchar_init();

	/* set CPU model info for sysctl_hw */
	cpu_setmodel("Ingenic XBurst");
	mips_vector_init(NULL, false);
	cal_timer();
	uvm_setpagesize();
	/*
	 * Look at arguments passed to us and compute boothowto.
	 */
	boothowto = RB_AUTOBOOT;
#ifdef KADB
	boothowto |= RB_KDB;
#endif

	/*
	 * Determine the memory size.
	 *
	 * Note: Reserve the first page!  That's where the trap
	 * vectors are located.
	 */
	memsize = 0x40000000;

	printf("Memory size: 0x%08x\n", memsize);
	physmem = btoc(memsize);

	/* XXX this is CI20 specific */
	mem_clusters[0].start = PAGE_SIZE;
	mem_clusters[0].size = 0x10000000 - PAGE_SIZE;
	mem_clusters[1].start = 0x30000000;
	mem_clusters[1].size = 0x30000000;
	mem_cluster_cnt = 2;

	/*
	 * Load the available pages into the VM system.
	 */
	mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
	    mem_clusters, mem_cluster_cnt, NULL, 0);

	/*
	 * Initialize message buffer (at end of core).
	 */
	mips_init_msgbuf();

	/*
	 * Initialize the virtual memory system.
	 */
	pmap_bootstrap();

	/*
	 * Allocate uarea page for lwp0 and set it.
	 */
	mips_init_lwp0_uarea();

	apbus_init();
	/*
	 * Initialize debuggers, and break into them, if appropriate.
	 */
#ifdef DDB
	if (boothowto & RB_KDB)
		Debugger();
#endif
}