1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Ralink SoC common setup
*
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/mips_machine.h>
#include <asm/mach-ralink/common.h>
#include <asm/mach-ralink/machine.h>
#include <ralink_soc.h>
unsigned char ramips_sys_type[RAMIPS_SYS_TYPE_LEN];
enum ramips_mach_type ramips_mach = RAMIPS_MACH_GENERIC;
const char *get_system_type(void)
{
return ramips_sys_type;
}
static void __init detect_mem_size(void)
{
unsigned long size;
for (size = RALINK_SOC_MEM_SIZE_MIN; size < RALINK_SOC_MEM_SIZE_MAX;
size <<= 1 ) {
if (!memcmp(detect_mem_size,
detect_mem_size + size, 1024))
break;
}
add_memory_region(RALINK_SOC_SDRAM_BASE, size, BOOT_MEM_RAM);
}
void __init ramips_early_serial_setup(int line, unsigned base, unsigned freq,
unsigned irq)
{
struct uart_port p;
int err;
memset(&p, 0, sizeof(p));
p.flags = UPF_SKIP_TEST;
p.iotype = UPIO_AU;
p.uartclk = freq;
p.regshift = 2;
p.type = PORT_16550A;
p.mapbase = base;
p.membase = ioremap_nocache(p.mapbase, PAGE_SIZE);
p.line = line;
p.irq = irq;
err = early_serial_setup(&p);
if (err)
printk(KERN_ERR "early serial%d registration failed %d\n",
line, err);
}
void __init plat_mem_setup(void)
{
set_io_port_base(KSEG1);
detect_mem_size();
ramips_soc_setup();
}
static int __init ramips_machine_setup(void)
{
mips_machine_setup(ramips_mach);
return 0;
}
arch_initcall(ramips_machine_setup);
static void __init ramips_generic_init(void)
{
}
MIPS_MACHINE(RAMIPS_MACH_GENERIC, "Generic Ralink board", ramips_generic_init);
|
