1/*
 2 * Copyright 2010 Wolfgang Grandegger <wg@denx.de>
 3 *
 4 * Copyright 2000-2003, 2008 MontaVista Software Inc.
 5 * Author: MontaVista Software, Inc. <source@mvista.com>
 6 *
 7 *  This program is free software; you can redistribute  it and/or modify it
 8 *  under  the terms of  the GNU General  Public License as published by the
 9 *  Free Software Foundation;  either version 2 of the  License, or (at your
10 *  option) any later version.
11 *
12 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
13 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
14 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
15 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
16 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
18 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
19 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
20 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 *
23 *  You should have received a copy of the  GNU General Public License along
24 *  with this program; if not, write  to the Free Software Foundation, Inc.,
25 *  675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27
28#include <linux/gpio.h>
29#include <linux/init.h>
30#include <linux/interrupt.h>
31#include <linux/delay.h>
32#include <linux/pm.h>
33
34#include <asm/reboot.h>
35#include <asm/mach-au1x00/au1000.h>
36
37#include <prom.h>
38
39char irq_tab_alchemy[][5] __initdata = {
40	[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff },
41};
42
43static void gpr_reset(char *c)
44{
45	/* switch System-LED to orange (red# and green# on) */
46	alchemy_gpio_direction_output(4, 0);
47	alchemy_gpio_direction_output(5, 0);
48
49	/* trigger watchdog to reset board in 200ms */
50	printk(KERN_EMERG "Triggering watchdog soft reset...\n");
51	raw_local_irq_disable();
52	alchemy_gpio_direction_output(1, 0);
53	udelay(1);
54	alchemy_gpio_set_value(1, 1);
55	while (1)
56		cpu_wait();
57}
58
59static void gpr_power_off(void)
60{
61	while (1)
62		cpu_wait();
63}
64
65void __init board_setup(void)
66{
67	printk(KERN_INFO "Trapeze ITS GPR board\n");
68
69	pm_power_off = gpr_power_off;
70	_machine_halt = gpr_power_off;
71	_machine_restart = gpr_reset;
72
73	/* Enable UART1/3 */
74	alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
75	alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
76
77	/* Take away Reset of UMTS-card */
78	alchemy_gpio_direction_output(215, 1);
79
80#ifdef CONFIG_PCI
81#if defined(__MIPSEB__)
82	au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
83#else
84	au_writel(0xf, Au1500_PCI_CFG);
85#endif
86#endif
87}