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
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <linux/kernel.h>
36 #include <linux/serial_8250.h>
40 #include <asm/reboot.h>
42 #include <asm/bootinfo.h>
44 #include <asm/netlogic/interrupt.h>
45 #include <asm/netlogic/psb-bootinfo.h>
46 #include <asm/netlogic/haldefs.h>
47 #include <asm/netlogic/common.h>
49 #include <asm/netlogic/xlr/xlr.h>
50 #include <asm/netlogic/xlr/iomap.h>
51 #include <asm/netlogic/xlr/pic.h>
52 #include <asm/netlogic/xlr/gpio.h>
53 #include <asm/netlogic/xlr/fmn.h>
55 uint64_t nlm_io_base
= DEFAULT_NETLOGIC_IO_BASE
;
56 struct psb_info nlm_prom_info
;
58 /* default to uniprocessor */
59 unsigned int nlm_threads_per_core
= 1;
60 struct nlm_soc_info nlm_nodes
[NLM_NR_NODES
];
61 cpumask_t nlm_cpumask
= CPU_MASK_CPU0
;
63 static void nlm_linux_exit(void)
67 gpiobase
= nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET
);
68 /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
69 nlm_write_reg(gpiobase
, GPIO_SWRESET_REG
, 1);
74 void __init
plat_mem_setup(void)
76 _machine_restart
= (void (*)(char *))nlm_linux_exit
;
77 _machine_halt
= nlm_linux_exit
;
78 pm_power_off
= nlm_linux_exit
;
81 const char *get_system_type(void)
83 return "Netlogic XLR/XLS Series";
86 unsigned int nlm_get_cpu_frequency(void)
88 return (unsigned int)nlm_prom_info
.cpu_frequency
;
91 void __init
prom_free_prom_memory(void)
96 void nlm_percpu_init(int hwcpuid
)
99 xlr_percpu_fmn_init();
102 static void __init
build_arcs_cmdline(int *argv
)
107 remain
= sizeof(arcs_cmdline
) - 1;
108 arcs_cmdline
[0] = '\0';
109 for (i
= 0; argv
[i
] != 0; i
++) {
110 arg
= (char *)(long)argv
[i
];
112 if (len
+ 1 > remain
)
114 strcat(arcs_cmdline
, arg
);
115 strcat(arcs_cmdline
, " ");
119 /* Add the default options here */
120 if ((strstr(arcs_cmdline
, "console=")) == NULL
) {
121 arg
= "console=ttyS0,38400 ";
125 strcat(arcs_cmdline
, arg
);
128 #ifdef CONFIG_BLK_DEV_INITRD
129 if ((strstr(arcs_cmdline
, "rdinit=")) == NULL
) {
130 arg
= "rdinit=/sbin/init ";
134 strcat(arcs_cmdline
, arg
);
140 panic("Cannot add %s, command line too big!", arg
);
143 static void prom_add_memory(void)
145 struct nlm_boot_mem_map
*bootm
;
147 u64 pref_backup
= 512; /* avoid pref walking beyond end */
150 bootm
= (void *)(long)nlm_prom_info
.psb_mem_map
;
151 for (i
= 0; i
< bootm
->nr_map
; i
++) {
152 if (bootm
->map
[i
].type
!= BOOT_MEM_RAM
)
154 start
= bootm
->map
[i
].addr
;
155 size
= bootm
->map
[i
].size
;
157 /* Work around for using bootloader mem */
158 if (i
== 0 && start
== 0 && size
== 0x0c000000)
161 add_memory_region(start
, size
- pref_backup
, BOOT_MEM_RAM
);
165 static void nlm_init_node(void)
167 struct nlm_soc_info
*nodep
;
169 nodep
= nlm_current_node();
170 nodep
->picbase
= nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET
);
171 nodep
->ebase
= read_c0_ebase() & MIPS_EBASE_BASE
;
172 spin_lock_init(&nodep
->piclock
);
175 void __init
prom_init(void)
177 int *argv
, *envp
; /* passed as 32 bit ptrs */
178 struct psb_info
*prom_infop
;
184 /* truncate to 32 bit and sign extend all args */
185 argv
= (int *)(long)(int)fw_arg1
;
186 envp
= (int *)(long)(int)fw_arg2
;
187 prom_infop
= (struct psb_info
*)(long)(int)fw_arg3
;
189 nlm_prom_info
= *prom_infop
;
192 /* Update reset entry point with CPU init code */
193 reset_vec
= (void *)CKSEG1ADDR(RESET_VEC_PHYS
);
194 memset(reset_vec
, 0, RESET_VEC_SIZE
);
195 memcpy(reset_vec
, (void *)nlm_reset_entry
,
196 (nlm_reset_entry_end
- nlm_reset_entry
));
198 build_arcs_cmdline(argv
);
202 for (i
= 0; i
< 32; i
++)
203 if (nlm_prom_info
.online_cpu_map
& (1 << i
))
204 cpumask_set_cpu(i
, &nlm_cpumask
);
205 nlm_wakeup_secondary_cpus();
206 register_smp_ops(&nlm_smp_ops
);
208 xlr_board_info_setup();
209 xlr_percpu_fmn_init();