1/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 *	Alchemy Db1x00 board setup.
5 *
6 * Copyright 2000 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 *         	ppopov@mvista.com or source@mvista.com
9 *
10 *  This program is free software; you can redistribute  it and/or modify it
11 *  under  the terms of  the GNU General  Public License as published by the
12 *  Free Software Foundation;  either version 2 of the  License, or (at your
13 *  option) any later version.
14 *
15 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
16 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
17 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
18 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
19 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
21 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
23 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 *  You should have received a copy of the  GNU General Public License along
27 *  with this program; if not, write  to the Free Software Foundation, Inc.,
28 *  675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30#include <linux/init.h>
31#include <linux/sched.h>
32#include <linux/ioport.h>
33#include <linux/mm.h>
34#include <linux/console.h>
35#include <linux/mc146818rtc.h>
36#include <linux/delay.h>
37
38#include <asm/cpu.h>
39#include <asm/bootinfo.h>
40#include <asm/irq.h>
41#include <asm/mipsregs.h>
42#include <asm/reboot.h>
43#include <asm/pgtable.h>
44#include <asm/mach-au1x00/au1000.h>
45#include <asm/mach-db1x00/db1x00.h>
46
47static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
48
49void board_reset (void)
50{
51	/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
52	bcsr->swreset = 0x0000;
53}
54
55void __init board_setup(void)
56{
57	u32 pin_func;
58
59	pin_func = 0;
60	/* not valid for 1550 */
61
62#if defined(CONFIG_IRDA) && (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100))
63	/* set IRFIRSEL instead of GPIO15 */
64	pin_func = au_readl(SYS_PINFUNC) | (u32)((1<<8));
65	au_writel(pin_func, SYS_PINFUNC);
66	/* power off until the driver is in use */
67	bcsr->resets &= ~BCSR_RESETS_IRDA_MODE_MASK;
68	bcsr->resets |= BCSR_RESETS_IRDA_MODE_OFF;
69	au_sync();
70#endif
71	bcsr->pcmcia = 0x0000; /* turn off PCMCIA power */
72
73#ifdef CONFIG_MIPS_MIRAGE
74	/* enable GPIO[31:0] inputs */
75	au_writel(0, SYS_PININPUTEN);
76
77	/* GPIO[20] is output, tristate the other input primary GPIO's */
78	au_writel((u32)(~(1<<20)), SYS_TRIOUTCLR);
79
80	/* set GPIO[210:208] instead of SSI_0 */
81	pin_func = au_readl(SYS_PINFUNC) | (u32)(1);
82
83	/* set GPIO[215:211] for LED's */
84	pin_func |= (u32)((5<<2));
85
86	/* set GPIO[214:213] for more LED's */
87	pin_func |= (u32)((5<<12));
88
89	/* set GPIO[207:200] instead of PCMCIA/LCD */
90	pin_func |= (u32)((3<<17));
91	au_writel(pin_func, SYS_PINFUNC);
92
93	/* Enable speaker amplifier.  This should
94	 * be part of the audio driver.
95	 */
96	au_writel(au_readl(GPIO2_DIR) | 0x200, GPIO2_DIR);
97	au_writel(0x02000200, GPIO2_OUTPUT);
98#endif
99
100	au_sync();
101
102#ifdef CONFIG_MIPS_DB1000
103    printk("AMD Alchemy Au1000/Db1000 Board\n");
104#endif
105#ifdef CONFIG_MIPS_DB1500
106    printk("AMD Alchemy Au1500/Db1500 Board\n");
107#endif
108#ifdef CONFIG_MIPS_DB1100
109    printk("AMD Alchemy Au1100/Db1100 Board\n");
110#endif
111#ifdef CONFIG_MIPS_BOSPORUS
112    printk("AMD Alchemy Bosporus Board\n");
113#endif
114#ifdef CONFIG_MIPS_MIRAGE
115    printk("AMD Alchemy Mirage Board\n");
116#endif
117#ifdef CONFIG_MIPS_DB1550
118    printk("AMD Alchemy Au1550/Db1550 Board\n");
119#endif
120}
121