예제 #1
0
/* Early cpumask setup - runs on TP0 */
static void brcmstb_smp_setup(void)
{
	__cpu_number_map[0] = 0;
	__cpu_logical_map[0] = 0;
	set_cpu_possible(0, 1);
	set_cpu_present(0, 1);

	__cpu_number_map[1] = 1;
	__cpu_logical_map[1] = 1;
	set_cpu_possible(1, 1);
	set_cpu_present(1, 1);

#if defined(CONFIG_BMIPS4380)
	/* NBK and weak order flags */
	set_c0_brcm_config_0(0x30000);

	/*
	 * MIPS interrupts 0,1 (SW INT 0,1) cross over to the other TP
	 * MIPS interrupt 2 (HW INT 0) is the TP0 L1 controller output
	 * MIPS interrupt 3 (HW INT 1) is the TP1 L1 controller output
	 */
	change_c0_brcm_cmt_intr(0xf8018000, (0x02 << 27) | (0x03 << 15));
#elif defined(CONFIG_BMIPS5000)
	/* enable raceless SW interrupts */
	set_c0_brcm_config(0x03 << 22);

	/* clear any pending SW interrupts */
	write_c0_brcm_action(0x2000 | (0 << 9) | (0 << 8));
	write_c0_brcm_action(0x2000 | (0 << 9) | (1 << 8));
	write_c0_brcm_action(0x2000 | (1 << 9) | (0 << 8));
	write_c0_brcm_action(0x2000 | (1 << 9) | (1 << 8));
#endif
}
예제 #2
0
/* Early cpumask setup - runs on TP0 */
void brcmstb_smp_setup(void)
{
    int i;

    /* 1:1 mapping between logical and physical CPUs */
    for (i = 0; i < NR_CPUS; i++) {
        cpu_clear(i, cpu_possible_map);
        __cpu_number_map[i] = i;
        __cpu_logical_map[i] = i;
    }

    /* Enable TP0, TP1 */
    cpu_set(0, cpu_possible_map);
    cpu_set(1, cpu_possible_map);

    cpu_present_map = cpu_possible_map;


#if defined(CONFIG_BMIPS4380)
    /* NBK and weak order flags */
    set_c0_brcm_config_0(0x30000);

    /*
     * MIPS interrupts 0,1 (SW INT 0,1) cross over to the other TP
     * MIPS interrupt 2 (HW INT 0) is the TP0 L1 controller output
     * MIPS interrupt 3 (HW INT 1) is the TP1 L1 controller output
     */
    change_c0_brcm_cmt_intr(0xf8018000, (0x02 << 27) | (0x03 << 15));
#elif defined(CONFIG_BMIPS5000)
    /* enable raceless SW interrupts */
    set_c0_brcm_config(0x03 << 22);

    /* clear any pending SW interrupts */
    write_c0_brcm_action(0x2000 | (0 << 9) | (0 << 8));
    write_c0_brcm_action(0x2000 | (0 << 9) | (1 << 8));
    write_c0_brcm_action(0x2000 | (1 << 9) | (0 << 8));
    write_c0_brcm_action(0x2000 | (1 << 9) | (1 << 8));

    /* send HW interrupt 0 to TP0, HW interrupt 1 to TP1 */
    change_c0_brcm_mode(0x1f << 27, 0x02 << 27);
#endif
}