prom.c (730fa039f16df58c2dc3ff2894b7d767f100cf6e) prom.c (a0392222d9a374588803454c4d2211108c64d4e4)
1/*
2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License version 2 as published
4 * by the Free Software Foundation.
5 *
6 * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
7 */
8
9#include <linux/export.h>
10#include <linux/clk.h>
1/*
2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License version 2 as published
4 * by the Free Software Foundation.
5 *
6 * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
7 */
8
9#include <linux/export.h>
10#include <linux/clk.h>
11#include <linux/of_platform.h>
11#include <asm/bootinfo.h>
12#include <asm/time.h>
13
14#include <lantiq.h>
15
16#include "prom.h"
17#include "clk.h"
18
12#include <asm/bootinfo.h>
13#include <asm/time.h>
14
15#include <lantiq.h>
16
17#include "prom.h"
18#include "clk.h"
19
20/* access to the ebu needs to be locked between different drivers */
21DEFINE_SPINLOCK(ebu_lock);
22EXPORT_SYMBOL_GPL(ebu_lock);
23
24/*
25 * this struct is filled by the soc specific detection code and holds
26 * information about the specific soc type, revision and name
27 */
19static struct ltq_soc_info soc_info;
20
28static struct ltq_soc_info soc_info;
29
21unsigned int ltq_get_cpu_ver(void)
22{
23 return soc_info.rev;
24}
25EXPORT_SYMBOL(ltq_get_cpu_ver);
26
27unsigned int ltq_get_soc_type(void)
28{
29 return soc_info.type;
30}
31EXPORT_SYMBOL(ltq_get_soc_type);
32
33const char *get_system_type(void)
34{

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52
53 if (CPHYSADDR(p) && *p) {
54 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
55 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
56 }
57 }
58}
59
30unsigned int ltq_get_soc_type(void)
31{
32 return soc_info.type;
33}
34EXPORT_SYMBOL(ltq_get_soc_type);
35
36const char *get_system_type(void)
37{

--- 17 unchanged lines hidden (view full) ---

55
56 if (CPHYSADDR(p) && *p) {
57 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
58 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
59 }
60 }
61}
62
60void __init prom_init(void)
63void __init plat_mem_setup(void)
61{
64{
62 struct clk *clk;
65 ioport_resource.start = IOPORT_RESOURCE_START;
66 ioport_resource.end = IOPORT_RESOURCE_END;
67 iomem_resource.start = IOMEM_RESOURCE_START;
68 iomem_resource.end = IOMEM_RESOURCE_END;
63
69
70 set_io_port_base((unsigned long) KSEG1);
71
72 /*
73 * Load the builtin devicetree. This causes the chosen node to be
74 * parsed resulting in our memory appearing
75 */
76 __dt_setup_arch(&__dtb_start);
77}
78
79void __init prom_init(void)
80{
81 /* call the soc specific detetcion code and get it to fill soc_info */
64 ltq_soc_detect(&soc_info);
82 ltq_soc_detect(&soc_info);
65 clk_init();
66 clk = clk_get(0, "cpu");
67 snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev1.%d",
68 soc_info.name, soc_info.rev);
69 clk_put(clk);
83 snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
84 soc_info.name, soc_info.rev_type);
70 soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
71 pr_info("SoC: %s\n", soc_info.sys_type);
72 prom_init_cmdline();
73
74#if defined(CONFIG_MIPS_MT_SMP)
75 if (register_vsmp_smp_ops())
76 panic("failed to register_vsmp_smp_ops()");
77#endif
78}
85 soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
86 pr_info("SoC: %s\n", soc_info.sys_type);
87 prom_init_cmdline();
88
89#if defined(CONFIG_MIPS_MT_SMP)
90 if (register_vsmp_smp_ops())
91 panic("failed to register_vsmp_smp_ops()");
92#endif
93}
94
95int __init plat_of_setup(void)
96{
97 static struct of_device_id of_ids[3];
98
99 if (!of_have_populated_dt())
100 panic("device tree not present");
101
102 strncpy(of_ids[0].compatible, soc_info.compatible,
103 sizeof(of_ids[0].compatible));
104 strncpy(of_ids[1].compatible, "simple-bus",
105 sizeof(of_ids[1].compatible));
106 return of_platform_bus_probe(NULL, of_ids, NULL);
107}
108
109arch_initcall(plat_of_setup);