Loading...
1/*
2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3 * reserved.
4 *
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
9 * license below:
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
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
20 * distribution.
21 *
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,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#include <linux/kernel.h>
36#include <linux/serial_8250.h>
37#include <linux/pm.h>
38
39#include <asm/reboot.h>
40#include <asm/time.h>
41#include <asm/bootinfo.h>
42#include <asm/smp-ops.h>
43
44#include <asm/netlogic/interrupt.h>
45#include <asm/netlogic/psb-bootinfo.h>
46
47#include <asm/netlogic/xlr/xlr.h>
48#include <asm/netlogic/xlr/iomap.h>
49#include <asm/netlogic/xlr/pic.h>
50#include <asm/netlogic/xlr/gpio.h>
51
52unsigned long netlogic_io_base = (unsigned long)(DEFAULT_NETLOGIC_IO_BASE);
53unsigned long nlm_common_ebase = 0x0;
54struct psb_info nlm_prom_info;
55
56static void nlm_early_serial_setup(void)
57{
58 struct uart_port s;
59 nlm_reg_t *uart_base;
60
61 uart_base = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET);
62 memset(&s, 0, sizeof(s));
63 s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
64 s.iotype = UPIO_MEM32;
65 s.regshift = 2;
66 s.irq = PIC_UART_0_IRQ;
67 s.uartclk = PIC_CLKS_PER_SEC;
68 s.serial_in = nlm_xlr_uart_in;
69 s.serial_out = nlm_xlr_uart_out;
70 s.mapbase = (unsigned long)uart_base;
71 s.membase = (unsigned char __iomem *)uart_base;
72 early_serial_setup(&s);
73}
74
75static void nlm_linux_exit(void)
76{
77 nlm_reg_t *mmio;
78
79 mmio = netlogic_io_mmio(NETLOGIC_IO_GPIO_OFFSET);
80 /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
81 netlogic_write_reg(mmio, NETLOGIC_GPIO_SWRESET_REG, 1);
82 for ( ; ; )
83 cpu_wait();
84}
85
86void __init plat_mem_setup(void)
87{
88 panic_timeout = 5;
89 _machine_restart = (void (*)(char *))nlm_linux_exit;
90 _machine_halt = nlm_linux_exit;
91 pm_power_off = nlm_linux_exit;
92}
93
94const char *get_system_type(void)
95{
96 return "Netlogic XLR/XLS Series";
97}
98
99void __init prom_free_prom_memory(void)
100{
101 /* Nothing yet */
102}
103
104static void build_arcs_cmdline(int *argv)
105{
106 int i, remain, len;
107 char *arg;
108
109 remain = sizeof(arcs_cmdline) - 1;
110 arcs_cmdline[0] = '\0';
111 for (i = 0; argv[i] != 0; i++) {
112 arg = (char *)(long)argv[i];
113 len = strlen(arg);
114 if (len + 1 > remain)
115 break;
116 strcat(arcs_cmdline, arg);
117 strcat(arcs_cmdline, " ");
118 remain -= len + 1;
119 }
120
121 /* Add the default options here */
122 if ((strstr(arcs_cmdline, "console=")) == NULL) {
123 arg = "console=ttyS0,38400 ";
124 len = strlen(arg);
125 if (len > remain)
126 goto fail;
127 strcat(arcs_cmdline, arg);
128 remain -= len;
129 }
130#ifdef CONFIG_BLK_DEV_INITRD
131 if ((strstr(arcs_cmdline, "rdinit=")) == NULL) {
132 arg = "rdinit=/sbin/init ";
133 len = strlen(arg);
134 if (len > remain)
135 goto fail;
136 strcat(arcs_cmdline, arg);
137 remain -= len;
138 }
139#endif
140 return;
141fail:
142 panic("Cannot add %s, command line too big!", arg);
143}
144
145static void prom_add_memory(void)
146{
147 struct nlm_boot_mem_map *bootm;
148 u64 start, size;
149 u64 pref_backup = 512; /* avoid pref walking beyond end */
150 int i;
151
152 bootm = (void *)(long)nlm_prom_info.psb_mem_map;
153 for (i = 0; i < bootm->nr_map; i++) {
154 if (bootm->map[i].type != BOOT_MEM_RAM)
155 continue;
156 start = bootm->map[i].addr;
157 size = bootm->map[i].size;
158
159 /* Work around for using bootloader mem */
160 if (i == 0 && start == 0 && size == 0x0c000000)
161 size = 0x0ff00000;
162
163 add_memory_region(start, size - pref_backup, BOOT_MEM_RAM);
164 }
165}
166
167void __init prom_init(void)
168{
169 int *argv, *envp; /* passed as 32 bit ptrs */
170 struct psb_info *prom_infop;
171
172 /* truncate to 32 bit and sign extend all args */
173 argv = (int *)(long)(int)fw_arg1;
174 envp = (int *)(long)(int)fw_arg2;
175 prom_infop = (struct psb_info *)(long)(int)fw_arg3;
176
177 nlm_prom_info = *prom_infop;
178
179 nlm_early_serial_setup();
180 build_arcs_cmdline(argv);
181 nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
182 prom_add_memory();
183
184#ifdef CONFIG_SMP
185 nlm_wakeup_secondary_cpus(nlm_prom_info.online_cpu_map);
186 register_smp_ops(&nlm_smp_ops);
187#endif
188}
1/*
2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3 * reserved.
4 *
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
9 * license below:
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
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
20 * distribution.
21 *
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,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#include <linux/kernel.h>
36#include <linux/serial_8250.h>
37#include <linux/memblock.h>
38#include <linux/pm.h>
39
40#include <asm/idle.h>
41#include <asm/reboot.h>
42#include <asm/time.h>
43#include <asm/bootinfo.h>
44
45#include <asm/netlogic/interrupt.h>
46#include <asm/netlogic/psb-bootinfo.h>
47#include <asm/netlogic/haldefs.h>
48#include <asm/netlogic/common.h>
49
50#include <asm/netlogic/xlr/xlr.h>
51#include <asm/netlogic/xlr/iomap.h>
52#include <asm/netlogic/xlr/pic.h>
53#include <asm/netlogic/xlr/gpio.h>
54#include <asm/netlogic/xlr/fmn.h>
55
56uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;
57struct psb_info nlm_prom_info;
58
59/* default to uniprocessor */
60unsigned int nlm_threads_per_core = 1;
61struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
62cpumask_t nlm_cpumask = CPU_MASK_CPU0;
63
64static void nlm_linux_exit(void)
65{
66 uint64_t gpiobase;
67
68 gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET);
69 /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
70 nlm_write_reg(gpiobase, GPIO_SWRESET_REG, 1);
71 for ( ; ; )
72 cpu_wait();
73}
74
75void __init plat_mem_setup(void)
76{
77 _machine_restart = (void (*)(char *))nlm_linux_exit;
78 _machine_halt = nlm_linux_exit;
79 pm_power_off = nlm_linux_exit;
80}
81
82const char *get_system_type(void)
83{
84 return "Netlogic XLR/XLS Series";
85}
86
87unsigned int nlm_get_cpu_frequency(void)
88{
89 return (unsigned int)nlm_prom_info.cpu_frequency;
90}
91
92void nlm_percpu_init(int hwcpuid)
93{
94 if (hwcpuid % 4 == 0)
95 xlr_percpu_fmn_init();
96}
97
98static void __init build_arcs_cmdline(int *argv)
99{
100 int i, remain, len;
101 char *arg;
102
103 remain = sizeof(arcs_cmdline) - 1;
104 arcs_cmdline[0] = '\0';
105 for (i = 0; argv[i] != 0; i++) {
106 arg = (char *)(long)argv[i];
107 len = strlen(arg);
108 if (len + 1 > remain)
109 break;
110 strcat(arcs_cmdline, arg);
111 strcat(arcs_cmdline, " ");
112 remain -= len + 1;
113 }
114
115 /* Add the default options here */
116 if ((strstr(arcs_cmdline, "console=")) == NULL) {
117 arg = "console=ttyS0,38400 ";
118 len = strlen(arg);
119 if (len > remain)
120 goto fail;
121 strcat(arcs_cmdline, arg);
122 remain -= len;
123 }
124#ifdef CONFIG_BLK_DEV_INITRD
125 if ((strstr(arcs_cmdline, "rdinit=")) == NULL) {
126 arg = "rdinit=/sbin/init ";
127 len = strlen(arg);
128 if (len > remain)
129 goto fail;
130 strcat(arcs_cmdline, arg);
131 remain -= len;
132 }
133#endif
134 return;
135fail:
136 panic("Cannot add %s, command line too big!", arg);
137}
138
139static void prom_add_memory(void)
140{
141 struct nlm_boot_mem_map *bootm;
142 u64 start, size;
143 u64 pref_backup = 512; /* avoid pref walking beyond end */
144 int i;
145
146 bootm = (void *)(long)nlm_prom_info.psb_mem_map;
147 for (i = 0; i < bootm->nr_map; i++) {
148 if (bootm->map[i].type != NLM_BOOT_MEM_RAM)
149 continue;
150 start = bootm->map[i].addr;
151 size = bootm->map[i].size;
152
153 /* Work around for using bootloader mem */
154 if (i == 0 && start == 0 && size == 0x0c000000)
155 size = 0x0ff00000;
156
157 memblock_add(start, size - pref_backup);
158 }
159}
160
161static void nlm_init_node(void)
162{
163 struct nlm_soc_info *nodep;
164
165 nodep = nlm_current_node();
166 nodep->picbase = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
167 nodep->ebase = read_c0_ebase() & MIPS_EBASE_BASE;
168 spin_lock_init(&nodep->piclock);
169}
170
171void __init prom_init(void)
172{
173 int *argv, *envp; /* passed as 32 bit ptrs */
174 struct psb_info *prom_infop;
175 void *reset_vec;
176#ifdef CONFIG_SMP
177 int i;
178#endif
179
180 /* truncate to 32 bit and sign extend all args */
181 argv = (int *)(long)(int)fw_arg1;
182 envp = (int *)(long)(int)fw_arg2;
183 prom_infop = (struct psb_info *)(long)(int)fw_arg3;
184
185 nlm_prom_info = *prom_infop;
186 nlm_init_node();
187
188 /* Update reset entry point with CPU init code */
189 reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS);
190 memset(reset_vec, 0, RESET_VEC_SIZE);
191 memcpy(reset_vec, (void *)nlm_reset_entry,
192 (nlm_reset_entry_end - nlm_reset_entry));
193
194 build_arcs_cmdline(argv);
195 prom_add_memory();
196
197#ifdef CONFIG_SMP
198 for (i = 0; i < 32; i++)
199 if (nlm_prom_info.online_cpu_map & (1 << i))
200 cpumask_set_cpu(i, &nlm_cpumask);
201 nlm_wakeup_secondary_cpus();
202 register_smp_ops(&nlm_smp_ops);
203#endif
204 xlr_board_info_setup();
205 xlr_percpu_fmn_init();
206}