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/module.h>
10#include <linux/clk.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
 
 
 
 
 
 
 
 
19static struct ltq_soc_info soc_info;
20
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{
35	return soc_info.sys_type;
36}
37
38void prom_free_prom_memory(void)
39{
40}
41
42static void __init prom_init_cmdline(void)
43{
44	int argc = fw_arg0;
45	char **argv = (char **) KSEG1ADDR(fw_arg1);
46	int i;
47
 
 
48	for (i = 0; i < argc; i++) {
49		char *p = (char *)  KSEG1ADDR(argv[i]);
50
51		if (p && *p) {
52			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
53			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
54		}
55	}
56}
57
58void __init prom_init(void)
59{
60	struct clk *clk;
 
 
 
 
 
 
 
 
 
 
 
 
61
 
 
 
62	ltq_soc_detect(&soc_info);
63	clk_init();
64	clk = clk_get(0, "cpu");
65	snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev1.%d",
66		soc_info.name, soc_info.rev);
67	clk_put(clk);
68	soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
69	pr_info("SoC: %s\n", soc_info.sys_type);
70	prom_init_cmdline();
 
 
 
 
 
71}

  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>
 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 */
 28static struct ltq_soc_info soc_info;
 29
 
 
 
 
 
 
 
 
 
 
 
 
 30const char *get_system_type(void)
 31{
 32	return soc_info.sys_type;
 33}
 34
 35void prom_free_prom_memory(void)
 36{
 37}
 38
 39static void __init prom_init_cmdline(void)
 40{
 41	int argc = fw_arg0;
 42	char **argv = (char **) KSEG1ADDR(fw_arg1);
 43	int i;
 44
 45	arcs_cmdline[0] = '\0';
 46
 47	for (i = 0; i < argc; i++) {
 48		char *p = (char *) KSEG1ADDR(argv[i]);
 49
 50		if (CPHYSADDR(p) && *p) {
 51			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
 52			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
 53		}
 54	}
 55}
 56
 57void __init plat_mem_setup(void)
 58{
 59	ioport_resource.start = IOPORT_RESOURCE_START;
 60	ioport_resource.end = IOPORT_RESOURCE_END;
 61	iomem_resource.start = IOMEM_RESOURCE_START;
 62	iomem_resource.end = IOMEM_RESOURCE_END;
 63
 64	set_io_port_base((unsigned long) KSEG1);
 65
 66	/*
 67	 * Load the builtin devicetree. This causes the chosen node to be
 68	 * parsed resulting in our memory appearing
 69	 */
 70	__dt_setup_arch(&__dtb_start);
 71}
 72
 73void __init prom_init(void)
 74{
 75	/* call the soc specific detetcion code and get it to fill soc_info */
 76	ltq_soc_detect(&soc_info);
 77	snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
 78		soc_info.name, soc_info.rev_type);
 
 
 
 79	soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
 80	pr_info("SoC: %s\n", soc_info.sys_type);
 81	prom_init_cmdline();
 82
 83#if defined(CONFIG_MIPS_MT_SMP)
 84	if (register_vsmp_smp_ops())
 85		panic("failed to register_vsmp_smp_ops()");
 86#endif
 87}
 88
 89int __init plat_of_setup(void)
 90{
 91	static struct of_device_id of_ids[3];
 92
 93	if (!of_have_populated_dt())
 94		panic("device tree not present");
 95
 96	strncpy(of_ids[0].compatible, soc_info.compatible,
 97		sizeof(of_ids[0].compatible));
 98	strncpy(of_ids[1].compatible, "simple-bus",
 99		sizeof(of_ids[1].compatible));
100	return of_platform_bus_probe(NULL, of_ids, NULL);
101}
102
103arch_initcall(plat_of_setup);