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
|
/*
* Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
*
* 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/delay.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/clock.h>
#include <mach/tcc-nand.h>
#include <mach/tcc8k-regs.h>
#include "common.h"
#define XI_FREQUENCY 12000000
#define XTI_FREQUENCY 32768
#ifdef CONFIG_MTD_NAND_TCC
/* NAND */
static struct tcc_nand_platform_data tcc8k_sdk_nand_data = {
.width = 1,
.hw_ecc = 0,
};
#endif
static void __init tcc8k_init(void)
{
#ifdef CONFIG_MTD_NAND_TCC
tcc_nand_device.dev.platform_data = &tcc8k_sdk_nand_data;
platform_device_register(&tcc_nand_device);
#endif
}
static void __init tcc8k_init_timer(void)
{
tcc_clocks_init(XI_FREQUENCY, XTI_FREQUENCY);
}
static struct sys_timer tcc8k_timer = {
.init = tcc8k_init_timer,
};
static void __init tcc8k_map_io(void)
{
tcc8k_map_common_io();
/* set PLL0 clock to 96MHz, adapt UART0 divisor */
__raw_writel(0x00026003, CKC_BASE + PLL0CFG_OFFS);
__raw_writel(0x10000001, CKC_BASE + ACLKUART0_OFFS);
/* set PLL1 clock to 192MHz */
__raw_writel(0x00016003, CKC_BASE + PLL1CFG_OFFS);
/* set PLL2 clock to 48MHz */
__raw_writel(0x00036003, CKC_BASE + PLL2CFG_OFFS);
/* with CPU freq higher than 150 MHz, need extra DTCM wait */
__raw_writel(0x00000001, SCFG_BASE + DTCMWAIT_OFFS);
/* PLL locking time as specified */
udelay(300);
}
MACHINE_START(TCC8000_SDK, "Telechips TCC8000-SDK Demo Board")
.boot_params = PHYS_OFFSET + 0x00000100,
.map_io = tcc8k_map_io,
.init_irq = tcc8k_init_irq,
.init_machine = tcc8k_init,
.timer = &tcc8k_timer,
MACHINE_END
|
