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1da177e4 LT |
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 | */ | |
1da177e4 LT |
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 | ||
dea91002 | 47 | static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR; |
1da177e4 | 48 | |
49a89efb | 49 | void board_reset(void) |
1da177e4 LT |
50 | { |
51 | /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ | |
dea91002 | 52 | bcsr->swreset = 0x0000; |
1da177e4 LT |
53 | } |
54 | ||
55 | void __init board_setup(void) | |
56 | { | |
57 | u32 pin_func; | |
58 | ||
59 | pin_func = 0; | |
60 | /* not valid for 1550 */ | |
1da177e4 LT |
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 | |
dea91002 | 71 | bcsr->pcmcia = 0x0000; /* turn off PCMCIA power */ |
1da177e4 LT |
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 | } |