2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the NetLogic
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
22 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
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35 #include <linux/init.h>
36 #include <linux/delay.h>
37 #include <linux/threads.h>
40 #include <asm/asm-offsets.h>
41 #include <asm/mipsregs.h>
42 #include <asm/addrspace.h>
43 #include <asm/string.h>
45 #include <asm/netlogic/haldefs.h>
46 #include <asm/netlogic/common.h>
47 #include <asm/netlogic/mips-extns.h>
49 #include <asm/netlogic/xlr/iomap.h>
50 #include <asm/netlogic/xlr/pic.h>
52 int __cpuinit xlr_wakeup_secondary_cpus(void)
54 struct nlm_soc_info *nodep;
55 unsigned int i, j, boot_cpu;
56 volatile u32 *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY);
59 * In case of RMI boot, hit with NMI to get the cores
60 * from bootloader to linux code.
62 nodep = nlm_get_node(0);
63 boot_cpu = hard_smp_processor_id();
64 nlm_set_nmi_handler(nlm_rmiboot_preboot);
65 for (i = 0; i < NR_CPUS; i++) {
66 if (i == boot_cpu || !cpumask_test_cpu(i, &nlm_cpumask))
68 nlm_pic_send_ipi(nodep->picbase, i, 1, 1); /* send NMI */
71 /* Fill up the coremask early */
73 for (i = 1; i < NLM_CORES_PER_NODE; i++) {
74 for (j = 1000000; j > 0; j--) {
75 if (cpu_ready[i * NLM_THREADS_PER_CORE])
80 nodep->coremask |= (1u << i);
82 pr_err("Failed to wakeup core %d\n", i);