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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
43#include <asm/netlogic/interrupt.h>
44#include <asm/netlogic/psb-bootinfo.h>
45#include <asm/netlogic/haldefs.h>
46#include <asm/netlogic/common.h>
47
48#include <asm/netlogic/xlr/xlr.h>
49#include <asm/netlogic/xlr/iomap.h>
50#include <asm/netlogic/xlr/pic.h>
51#include <asm/netlogic/xlr/gpio.h>
52
53uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;
54uint64_t nlm_pic_base;
55struct psb_info nlm_prom_info;
56
57unsigned long nlm_common_ebase = 0x0;
58
59/* default to uniprocessor */
60uint32_t nlm_coremask = 1, nlm_cpumask = 1;
61int nlm_threads_per_core = 1;
62
63static void __init nlm_early_serial_setup(void)
64{
65 struct uart_port s;
66 unsigned long uart_base;
67
68 uart_base = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
69 memset(&s, 0, sizeof(s));
70 s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
71 s.iotype = UPIO_MEM32;
72 s.regshift = 2;
73 s.irq = PIC_UART_0_IRQ;
74 s.uartclk = PIC_CLKS_PER_SEC;
75 s.serial_in = nlm_xlr_uart_in;
76 s.serial_out = nlm_xlr_uart_out;
77 s.mapbase = uart_base;
78 s.membase = (unsigned char __iomem *)uart_base;
79 early_serial_setup(&s);
80}
81
82static void nlm_linux_exit(void)
83{
84 uint64_t gpiobase;
85
86 gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET);
87 /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
88 nlm_write_reg(gpiobase, NETLOGIC_GPIO_SWRESET_REG, 1);
89 for ( ; ; )
90 cpu_wait();
91}
92
93void __init plat_mem_setup(void)
94{
95 panic_timeout = 5;
96 _machine_restart = (void (*)(char *))nlm_linux_exit;
97 _machine_halt = nlm_linux_exit;
98 pm_power_off = nlm_linux_exit;
99}
100
101const char *get_system_type(void)
102{
103 return "Netlogic XLR/XLS Series";
104}
105
106unsigned int nlm_get_cpu_frequency(void)
107{
108 return (unsigned int)nlm_prom_info.cpu_frequency;
109}
110
111void __init prom_free_prom_memory(void)
112{
113 /* Nothing yet */
114}
115
116static void __init build_arcs_cmdline(int *argv)
117{
118 int i, remain, len;
119 char *arg;
120
121 remain = sizeof(arcs_cmdline) - 1;
122 arcs_cmdline[0] = '\0';
123 for (i = 0; argv[i] != 0; i++) {
124 arg = (char *)(long)argv[i];
125 len = strlen(arg);
126 if (len + 1 > remain)
127 break;
128 strcat(arcs_cmdline, arg);
129 strcat(arcs_cmdline, " ");
130 remain -= len + 1;
131 }
132
133 /* Add the default options here */
134 if ((strstr(arcs_cmdline, "console=")) == NULL) {
135 arg = "console=ttyS0,38400 ";
136 len = strlen(arg);
137 if (len > remain)
138 goto fail;
139 strcat(arcs_cmdline, arg);
140 remain -= len;
141 }
142#ifdef CONFIG_BLK_DEV_INITRD
143 if ((strstr(arcs_cmdline, "rdinit=")) == NULL) {
144 arg = "rdinit=/sbin/init ";
145 len = strlen(arg);
146 if (len > remain)
147 goto fail;
148 strcat(arcs_cmdline, arg);
149 remain -= len;
150 }
151#endif
152 return;
153fail:
154 panic("Cannot add %s, command line too big!", arg);
155}
156
157static void prom_add_memory(void)
158{
159 struct nlm_boot_mem_map *bootm;
160 u64 start, size;
161 u64 pref_backup = 512; /* avoid pref walking beyond end */
162 int i;
163
164 bootm = (void *)(long)nlm_prom_info.psb_mem_map;
165 for (i = 0; i < bootm->nr_map; i++) {
166 if (bootm->map[i].type != BOOT_MEM_RAM)
167 continue;
168 start = bootm->map[i].addr;
169 size = bootm->map[i].size;
170
171 /* Work around for using bootloader mem */
172 if (i == 0 && start == 0 && size == 0x0c000000)
173 size = 0x0ff00000;
174
175 add_memory_region(start, size - pref_backup, BOOT_MEM_RAM);
176 }
177}
178
179void __init prom_init(void)
180{
181 int *argv, *envp; /* passed as 32 bit ptrs */
182 struct psb_info *prom_infop;
183
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;
188
189 nlm_prom_info = *prom_infop;
190 nlm_pic_base = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
191
192 nlm_early_serial_setup();
193 build_arcs_cmdline(argv);
194 nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
195 prom_add_memory();
196
197#ifdef CONFIG_SMP
198 nlm_wakeup_secondary_cpus(nlm_prom_info.online_cpu_map);
199 register_smp_ops(&nlm_smp_ops);
200#endif
201}
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}