/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * Copyright (C) 2010 John Crispin <john@phrozen.org> */ #include <linux/export.h> #include <linux/clk.h> #include <linux/bootmem.h> #include <linux/of_platform.h> #include <linux/of_fdt.h> #include <asm/bootinfo.h> #include <asm/time.h> #include <asm/prom.h> #include <lantiq.h> #include "prom.h" #include "clk.h" /* access to the ebu needs to be locked between different drivers */ DEFINE_SPINLOCK(ebu_lock); EXPORT_SYMBOL_GPL(ebu_lock); /* * This is needed by the VPE loader code, just set it to 0 and assume * that the firmware hardcodes this value to something useful. */ unsigned long physical_memsize = 0L; /* * this struct is filled by the soc specific detection code and holds * information about the specific soc type, revision and name */ static struct ltq_soc_info soc_info; const char *get_system_type(void) { return soc_info.sys_type; } int ltq_soc_type(void) { return soc_info.type; } void __init prom_free_prom_memory(void) { } static void __init prom_init_cmdline(void) { int argc = fw_arg0; char **argv = (char **) KSEG1ADDR(fw_arg1); int i; arcs_cmdline[0] = '\0'; for (i = 0; i < argc; i++) { char *p = (char *) KSEG1ADDR(argv[i]); if (CPHYSADDR(p) && *p) { strlcat(arcs_cmdline, p, sizeof(arcs_cmdline)); strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); } } } void __init plat_mem_setup(void) { void *dtb; ioport_resource.start = IOPORT_RESOURCE_START; ioport_resource.end = IOPORT_RESOURCE_END; iomem_resource.start = IOMEM_RESOURCE_START; iomem_resource.end = IOMEM_RESOURCE_END; set_io_port_base((unsigned long) KSEG1); if (fw_passed_dtb) /* UHI interface */ dtb = (void *)fw_passed_dtb; else if (__dtb_start != __dtb_end) dtb = (void *)__dtb_start; else panic("no dtb found"); /* * Load the devicetree. This causes the chosen node to be * parsed resulting in our memory appearing */ __dt_setup_arch(dtb); } void __init device_tree_init(void) { unflatten_and_copy_device_tree(); } void __init prom_init(void) { /* call the soc specific detetcion code and get it to fill soc_info */ ltq_soc_detect(&soc_info); snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s", soc_info.name, soc_info.rev_type); soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0'; pr_info("SoC: %s\n", soc_info.sys_type); prom_init_cmdline(); #if defined(CONFIG_MIPS_MT_SMP) if (register_vsmp_smp_ops()) panic("failed to register_vsmp_smp_ops()"); #endif } int __init plat_of_setup(void) { return of_platform_default_populate(NULL, NULL, NULL); } arch_initcall(plat_of_setup);