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
92
93
94
|
/*
*
* BRIEF MODULE DESCRIPTION
* 4G Systems MTX-1 board setup.
*
* Copyright 2003, 2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com>
* Bruno Randolf <bruno.randolf@4g-systems.biz>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
static void mtx1_reset(char *c)
{
/* Jump to the reset vector */
__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
}
static void mtx1_power_off(void)
{
while (1)
asm volatile (
" .set mips32 \n"
" wait \n"
" .set mips0 \n");
}
void __init board_setup(void)
{
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
/* Enable USB power switch */
alchemy_gpio_direction_output(204, 0);
#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
/* Initialize sys_pinfunc */
au_writel(SYS_PF_NI2, SYS_PINFUNC);
/* Initialize GPIO */
au_writel(~0, KSEG1ADDR(AU1000_SYS_PHYS_ADDR) + SYS_TRIOUTCLR);
alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */
alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */
alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */
alchemy_gpio_direction_output(5, 0); /* Disable eth PHY TX_ER */
/* Enable LED and set it to green */
alchemy_gpio_direction_output(211, 1); /* green on */
alchemy_gpio_direction_output(212, 0); /* red off */
pm_power_off = mtx1_power_off;
_machine_halt = mtx1_power_off;
_machine_restart = mtx1_reset;
printk(KERN_INFO "4G Systems MTX-1 Board\n");
}
static int __init mtx1_init_irq(void)
{
irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
return 0;
}
arch_initcall(mtx1_init_irq);
|
