3 * BRIEF MODULE DESCRIPTION
4 * Alchemy Db1x00 board setup.
6 * Copyright 2000 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
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.
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.
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.
30 #include <linux/init.h>
31 #include <linux/sched.h>
32 #include <linux/ioport.h>
34 #include <linux/console.h>
35 #include <linux/mc146818rtc.h>
36 #include <linux/delay.h>
39 #include <asm/bootinfo.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>
47 static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
49 void board_reset(void)
51 /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
52 bcsr->swreset = 0x0000;
55 void __init board_setup(void)
60 /* not valid for 1550 */
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;
71 bcsr->pcmcia = 0x0000; /* turn off PCMCIA power */
73 #ifdef CONFIG_MIPS_MIRAGE
74 /* enable GPIO[31:0] inputs */
75 au_writel(0, SYS_PININPUTEN);
77 /* GPIO[20] is output, tristate the other input primary GPIO's */
78 au_writel((u32)(~(1<<20)), SYS_TRIOUTCLR);
80 /* set GPIO[210:208] instead of SSI_0 */
81 pin_func = au_readl(SYS_PINFUNC) | (u32)(1);
83 /* set GPIO[215:211] for LED's */
84 pin_func |= (u32)((5<<2));
86 /* set GPIO[214:213] for more LED's */
87 pin_func |= (u32)((5<<12));
89 /* set GPIO[207:200] instead of PCMCIA/LCD */
90 pin_func |= (u32)((3<<17));
91 au_writel(pin_func, SYS_PINFUNC);
93 /* Enable speaker amplifier. This should
94 * be part of the audio driver.
96 au_writel(au_readl(GPIO2_DIR) | 0x200, GPIO2_DIR);
97 au_writel(0x02000200, GPIO2_OUTPUT);
102 #ifdef CONFIG_MIPS_DB1000
103 printk("AMD Alchemy Au1000/Db1000 Board\n");
105 #ifdef CONFIG_MIPS_DB1500
106 printk("AMD Alchemy Au1500/Db1500 Board\n");
108 #ifdef CONFIG_MIPS_DB1100
109 printk("AMD Alchemy Au1100/Db1100 Board\n");
111 #ifdef CONFIG_MIPS_BOSPORUS
112 printk("AMD Alchemy Bosporus Board\n");
114 #ifdef CONFIG_MIPS_MIRAGE
115 printk("AMD Alchemy Mirage Board\n");
117 #ifdef CONFIG_MIPS_DB1550
118 printk("AMD Alchemy Au1550/Db1550 Board\n");