adm5120: add 3.18 support
[openwrt.git] / target / linux / adm5120 / files-3.18 / arch / mips / adm5120 / common / setup.c
1 /*
2  *  ADM5120 specific setup
3  *
4  *  Copyright (C) 2007-2009 Gabor Juhos <juhosg@openwrt.org>
5  *
6  *  This code was based on the ADM5120 specific port of the Linux 2.6.10 kernel
7  *  done by Jeroen Vreeken
8  *      Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
9  *
10  *  Jeroen's code was based on the Linux 2.4.xx source codes found in various
11  *  tarballs released by Edimax for it's ADM5120 based devices
12  *      Copyright (C) ADMtek Incorporated
13  *
14  *  This program is free software; you can redistribute it and/or modify it
15  *  under the terms of the GNU General Public License version 2 as published
16  *  by the Free Software Foundation.
17  *
18  */
19
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/io.h>
23 #include <linux/reboot.h>
24 #include <linux/time.h>
25
26 #include <asm/reboot.h>
27 #include <asm/time.h>
28 #include <asm/bootinfo.h>
29 #include <asm/mips_machine.h>
30 #include <asm/idle.h>
31
32 #include <asm/mach-adm5120/adm5120_info.h>
33 #include <asm/mach-adm5120/adm5120_defs.h>
34 #include <asm/mach-adm5120/adm5120_switch.h>
35 #include <asm/mach-adm5120/adm5120_platform.h>
36
37 #define ADM5120_SYS_TYPE_LEN    64
38
39 unsigned char adm5120_sys_type[ADM5120_SYS_TYPE_LEN];
40 void (*adm5120_board_reset)(void);
41
42 static char *prom_names[ADM5120_PROM_LAST+1] __initdata = {
43         [ADM5120_PROM_GENERIC]          = "Generic",
44         [ADM5120_PROM_CFE]              = "CFE",
45         [ADM5120_PROM_UBOOT]            = "U-Boot",
46         [ADM5120_PROM_MYLOADER]         = "MyLoader",
47         [ADM5120_PROM_ROUTERBOOT]       = "RouterBOOT",
48         [ADM5120_PROM_BOOTBASE]         = "Bootbase"
49 };
50
51 static void __init adm5120_report(void)
52 {
53         printk(KERN_INFO "SoC      : %s\n", adm5120_sys_type);
54         printk(KERN_INFO "Bootdev  : %s flash\n",
55                 adm5120_nand_boot ? "NAND" : "NOR");
56         printk(KERN_INFO "Prom     : %s\n", prom_names[adm5120_prom_type]);
57 }
58
59 const char *get_system_type(void)
60 {
61         return adm5120_sys_type;
62 }
63
64 static void adm5120_restart(char *command)
65 {
66         /* TODO: stop switch before reset */
67
68         if (adm5120_board_reset)
69                 adm5120_board_reset();
70
71         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
72 }
73
74 static void adm5120_halt(void)
75 {
76         local_irq_disable();
77
78         while (1) {
79                 if (cpu_wait)
80                         cpu_wait();
81         }
82 }
83
84 void __init plat_time_init(void)
85 {
86         mips_hpt_frequency = adm5120_speed / 2;
87 }
88
89 void __init plat_mem_setup(void)
90 {
91         adm5120_soc_init();
92         adm5120_mem_init();
93
94         sprintf(adm5120_sys_type, "ADM%04X%s rev %u, running at %lu.%03lu MHz",
95                 adm5120_product_code,
96                 adm5120_package_bga() ? "" : "P",
97                 adm5120_revision,
98                 (adm5120_speed / 1000000), (adm5120_speed / 1000) % 1000);
99
100         adm5120_report();
101
102         _machine_restart = adm5120_restart;
103         _machine_halt = adm5120_halt;
104         pm_power_off = adm5120_halt;
105
106         set_io_port_base(KSEG1);
107 }
108
109 static int __init adm5120_board_setup(void)
110 {
111         adm5120_gpio_init();
112
113         mips_machine_setup();
114
115         return 0;
116 }
117 arch_initcall(adm5120_board_setup);
118
119 static void __init adm5120_generic_board_setup(void)
120 {
121         adm5120_add_device_uart(0);
122         adm5120_add_device_uart(1);
123
124         adm5120_add_device_flash(0);
125         adm5120_add_device_switch(6, NULL);
126 }
127
128 MIPS_MACHINE(MACH_ADM5120_GENERIC, "Generic", "Generic ADM5120 board",
129              adm5120_generic_board_setup);