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.
9 #include <linux/export.h>
10 #include <linux/clk.h>
11 #include <linux/bootmem.h>
12 #include <linux/of_platform.h>
13 #include <linux/of_fdt.h>
15 #include <asm/bootinfo.h>
24 /* access to the ebu needs to be locked between different drivers */
25 DEFINE_SPINLOCK(ebu_lock);
26 EXPORT_SYMBOL_GPL(ebu_lock);
29 * this struct is filled by the soc specific detection code and holds
30 * information about the specific soc type, revision and name
32 static struct ltq_soc_info soc_info;
34 const char *get_system_type(void)
36 return soc_info.sys_type;
39 int ltq_soc_type(void)
44 void __init prom_free_prom_memory(void)
48 static void __init prom_init_cmdline(void)
51 char **argv = (char **) KSEG1ADDR(fw_arg1);
54 arcs_cmdline[0] = '\0';
56 for (i = 0; i < argc; i++) {
57 char *p = (char *) KSEG1ADDR(argv[i]);
59 if (CPHYSADDR(p) && *p) {
60 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
61 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
66 void __init plat_mem_setup(void)
70 ioport_resource.start = IOPORT_RESOURCE_START;
71 ioport_resource.end = IOPORT_RESOURCE_END;
72 iomem_resource.start = IOMEM_RESOURCE_START;
73 iomem_resource.end = IOMEM_RESOURCE_END;
75 set_io_port_base((unsigned long) KSEG1);
77 if (fw_passed_dtb) /* UHI interface */
78 dtb = (void *)fw_passed_dtb;
79 else if (__dtb_start != __dtb_end)
80 dtb = (void *)__dtb_start;
82 panic("no dtb found");
85 * Load the devicetree. This causes the chosen node to be
86 * parsed resulting in our memory appearing
91 void __init device_tree_init(void)
93 unflatten_and_copy_device_tree();
96 void __init prom_init(void)
98 /* call the soc specific detetcion code and get it to fill soc_info */
99 ltq_soc_detect(&soc_info);
100 snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
101 soc_info.name, soc_info.rev_type);
102 soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
103 pr_info("SoC: %s\n", soc_info.sys_type);
106 #if defined(CONFIG_MIPS_MT_SMP)
107 if (register_vsmp_smp_ops())
108 panic("failed to register_vsmp_smp_ops()");
112 int __init plat_of_setup(void)
114 return __dt_register_buses(soc_info.compatible, "simple-bus");
117 arch_initcall(plat_of_setup);