1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
* reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the NetLogic
* license below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/serial_8250.h>
#include <linux/pm.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/bootinfo.h>
#include <asm/netlogic/interrupt.h>
#include <asm/netlogic/psb-bootinfo.h>
#include <asm/netlogic/haldefs.h>
#include <asm/netlogic/common.h>
#include <asm/netlogic/xlr/xlr.h>
#include <asm/netlogic/xlr/iomap.h>
#include <asm/netlogic/xlr/pic.h>
#include <asm/netlogic/xlr/gpio.h>
uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;
uint64_t nlm_pic_base;
unsigned long nlm_common_ebase = 0x0;
struct psb_info nlm_prom_info;
static void __init nlm_early_serial_setup(void)
{
struct uart_port s;
unsigned long uart_base;
uart_base = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
memset(&s, 0, sizeof(s));
s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
s.iotype = UPIO_MEM32;
s.regshift = 2;
s.irq = PIC_UART_0_IRQ;
s.uartclk = PIC_CLKS_PER_SEC;
s.serial_in = nlm_xlr_uart_in;
s.serial_out = nlm_xlr_uart_out;
s.mapbase = uart_base;
s.membase = (unsigned char __iomem *)uart_base;
early_serial_setup(&s);
}
static void nlm_linux_exit(void)
{
uint64_t gpiobase;
gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET);
/* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
nlm_write_reg(gpiobase, NETLOGIC_GPIO_SWRESET_REG, 1);
for ( ; ; )
cpu_wait();
}
void __init plat_mem_setup(void)
{
panic_timeout = 5;
_machine_restart = (void (*)(char *))nlm_linux_exit;
_machine_halt = nlm_linux_exit;
pm_power_off = nlm_linux_exit;
}
const char *get_system_type(void)
{
return "Netlogic XLR/XLS Series";
}
unsigned int nlm_get_cpu_frequency(void)
{
return (unsigned int)nlm_prom_info.cpu_frequency;
}
void __init prom_free_prom_memory(void)
{
/* Nothing yet */
}
static void __init build_arcs_cmdline(int *argv)
{
int i, remain, len;
char *arg;
remain = sizeof(arcs_cmdline) - 1;
arcs_cmdline[0] = '\0';
for (i = 0; argv[i] != 0; i++) {
arg = (char *)(long)argv[i];
len = strlen(arg);
if (len + 1 > remain)
break;
strcat(arcs_cmdline, arg);
strcat(arcs_cmdline, " ");
remain -= len + 1;
}
/* Add the default options here */
if ((strstr(arcs_cmdline, "console=")) == NULL) {
arg = "console=ttyS0,38400 ";
len = strlen(arg);
if (len > remain)
goto fail;
strcat(arcs_cmdline, arg);
remain -= len;
}
#ifdef CONFIG_BLK_DEV_INITRD
if ((strstr(arcs_cmdline, "rdinit=")) == NULL) {
arg = "rdinit=/sbin/init ";
len = strlen(arg);
if (len > remain)
goto fail;
strcat(arcs_cmdline, arg);
remain -= len;
}
#endif
return;
fail:
panic("Cannot add %s, command line too big!", arg);
}
static void prom_add_memory(void)
{
struct nlm_boot_mem_map *bootm;
u64 start, size;
u64 pref_backup = 512; /* avoid pref walking beyond end */
int i;
bootm = (void *)(long)nlm_prom_info.psb_mem_map;
for (i = 0; i < bootm->nr_map; i++) {
if (bootm->map[i].type != BOOT_MEM_RAM)
continue;
start = bootm->map[i].addr;
size = bootm->map[i].size;
/* Work around for using bootloader mem */
if (i == 0 && start == 0 && size == 0x0c000000)
size = 0x0ff00000;
add_memory_region(start, size - pref_backup, BOOT_MEM_RAM);
}
}
void __init prom_init(void)
{
int *argv, *envp; /* passed as 32 bit ptrs */
struct psb_info *prom_infop;
/* truncate to 32 bit and sign extend all args */
argv = (int *)(long)(int)fw_arg1;
envp = (int *)(long)(int)fw_arg2;
prom_infop = (struct psb_info *)(long)(int)fw_arg3;
nlm_prom_info = *prom_infop;
nlm_pic_base = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
nlm_early_serial_setup();
build_arcs_cmdline(argv);
nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
prom_add_memory();
#ifdef CONFIG_SMP
nlm_wakeup_secondary_cpus(nlm_prom_info.online_cpu_map);
register_smp_ops(&nlm_smp_ops);
#endif
}
|
