1/*
2 * Copyright 2000-2003 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc.
4 *         	ppopov@mvista.com or source@mvista.com
5 *
6 *  This program is free software; you can redistribute  it and/or modify it
7 *  under  the terms of  the GNU General  Public License as published by the
8 *  Free Software Foundation;  either version 2 of the  License, or (at your
9 *  option) any later version.
10 *
11 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
12 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
13 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
14 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
15 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
17 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
19 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 *  You should have received a copy of the  GNU General Public License along
23 *  with this program; if not, write  to the Free Software Foundation, Inc.,
24 *  675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26#include <linux/init.h>
27#include <linux/sched.h>
28#include <linux/ioport.h>
29#include <linux/mm.h>
30#include <linux/console.h>
31#include <linux/delay.h>
32
33#include <asm/cpu.h>
34#include <asm/bootinfo.h>
35#include <asm/irq.h>
36#include <asm/keyboard.h>
37#include <asm/mipsregs.h>
38#include <asm/reboot.h>
39#include <asm/pgtable.h>
40#include <asm/au1000.h>
41
42void board_reset (void)
43{
44	/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
45	au_writel(0x00000000, 0xAE00001C);
46}
47
48void __init board_setup(void)
49{
50	u32 pin_func;
51
52	// set multiple use pins (UART3/GPIO) to UART (it's used as UART too)
53	pin_func = au_readl(SYS_PINFUNC) & (u32)(~SYS_PF_UR3);
54	pin_func |= SYS_PF_UR3;
55	au_writel(pin_func, SYS_PINFUNC);
56
57	// enable UART
58	au_writel(0x01, UART3_ADDR+UART_MOD_CNTRL); // clock enable (CE)
59	mdelay(10);
60	au_writel(0x03, UART3_ADDR+UART_MOD_CNTRL); // CE and "enable"
61	mdelay(10);
62
63	// enable DTR = USB power up
64	au_writel(0x01, UART3_ADDR+UART_MCR); //? UART_MCR_DTR is 0x01???
65
66#ifdef CONFIG_PCMCIA_XXS1500
67	/* setup pcmcia signals */
68	au_writel(0, SYS_PININPUTEN);
69
70	/* gpio 0, 1, and 4 are inputs */
71	au_writel(1 | (1<<1) | (1<<4), SYS_TRIOUTCLR);
72
73	/* enable GPIO2 if not already enabled */
74	au_writel(1, GPIO2_ENABLE);
75	/* gpio2 208/9/10/11 are inputs */
76	au_writel((1<<8) | (1<<9) | (1<<10) | (1<<11), GPIO2_DIR);
77
78	/* turn off power */
79	au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30), GPIO2_OUTPUT);
80#endif
81
82
83#ifdef CONFIG_PCI
84#if defined(__MIPSEB__)
85	au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG);
86#else
87	au_writel(0xf, Au1500_PCI_CFG);
88#endif
89#endif
90}
91