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.
6 * Copyright (C) 2010 John Crispin <john@phrozen.org>
9 #include <linux/export.h>
10 #include <linux/clk.h>
11 #include <linux/memblock.h>
12 #include <linux/of_fdt.h>
14 #include <asm/bootinfo.h>
23 /* access to the ebu needs to be locked between different drivers */
24 DEFINE_SPINLOCK(ebu_lock);
25 EXPORT_SYMBOL_GPL(ebu_lock);
28 * This is needed by the VPE loader code, just set it to 0 and assume
29 * that the firmware hardcodes this value to something useful.
31 unsigned long physical_memsize = 0L;
34 * this struct is filled by the soc specific detection code and holds
35 * information about the specific soc type, revision and name
37 static struct ltq_soc_info soc_info;
39 const char *get_system_type(void)
41 return soc_info.sys_type;
44 int ltq_soc_type(void)
49 void __init prom_free_prom_memory(void)
53 static void __init prom_init_cmdline(void)
56 char **argv = (char **) KSEG1ADDR(fw_arg1);
59 arcs_cmdline[0] = '\0';
61 for (i = 0; i < argc; i++) {
62 char *p = (char *) KSEG1ADDR(argv[i]);
64 if (CPHYSADDR(p) && *p) {
65 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
66 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
71 void __init plat_mem_setup(void)
75 ioport_resource.start = IOPORT_RESOURCE_START;
76 ioport_resource.end = IOPORT_RESOURCE_END;
77 iomem_resource.start = IOMEM_RESOURCE_START;
78 iomem_resource.end = IOMEM_RESOURCE_END;
80 set_io_port_base((unsigned long) KSEG1);
82 if (fw_passed_dtb) /* UHI interface */
83 dtb = (void *)fw_passed_dtb;
84 else if (__dtb_start != __dtb_end)
85 dtb = (void *)__dtb_start;
87 panic("no dtb found");
90 * Load the devicetree. This causes the chosen node to be
91 * parsed resulting in our memory appearing
96 void __init device_tree_init(void)
98 unflatten_and_copy_device_tree();
101 void __init prom_init(void)
103 /* call the soc specific detetcion code and get it to fill soc_info */
104 ltq_soc_detect(&soc_info);
105 snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
106 soc_info.name, soc_info.rev_type);
107 soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
108 pr_info("SoC: %s\n", soc_info.sys_type);
111 #if defined(CONFIG_MIPS_MT_SMP)
112 if (register_vsmp_smp_ops())
113 panic("failed to register_vsmp_smp_ops()");