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1da177e4 LT |
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/config.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/ioport.h> | |
30 | #include <linux/mm.h> | |
31 | #include <linux/console.h> | |
32 | #include <linux/delay.h> | |
33 | ||
34 | #include <asm/cpu.h> | |
35 | #include <asm/bootinfo.h> | |
36 | #include <asm/irq.h> | |
37 | #include <asm/keyboard.h> | |
38 | #include <asm/mipsregs.h> | |
39 | #include <asm/reboot.h> | |
40 | #include <asm/pgtable.h> | |
41 | #include <asm/au1000.h> | |
42 | ||
43 | void board_reset (void) | |
44 | { | |
45 | /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ | |
46 | au_writel(0x00000000, 0xAE00001C); | |
47 | } | |
48 | ||
49 | void __init board_setup(void) | |
50 | { | |
51 | u32 pin_func; | |
52 | ||
53 | // set multiple use pins (UART3/GPIO) to UART (it's used as UART too) | |
54 | pin_func = au_readl(SYS_PINFUNC) & (u32)(~SYS_PF_UR3); | |
55 | pin_func |= SYS_PF_UR3; | |
56 | au_writel(pin_func, SYS_PINFUNC); | |
57 | ||
58 | // enable UART | |
59 | au_writel(0x01, UART3_ADDR+UART_MOD_CNTRL); // clock enable (CE) | |
60 | mdelay(10); | |
61 | au_writel(0x03, UART3_ADDR+UART_MOD_CNTRL); // CE and "enable" | |
62 | mdelay(10); | |
63 | ||
64 | // enable DTR = USB power up | |
65 | au_writel(0x01, UART3_ADDR+UART_MCR); //? UART_MCR_DTR is 0x01??? | |
66 | ||
67 | #ifdef CONFIG_PCMCIA_XXS1500 | |
68 | /* setup pcmcia signals */ | |
69 | au_writel(0, SYS_PININPUTEN); | |
70 | ||
71 | /* gpio 0, 1, and 4 are inputs */ | |
72 | au_writel(1 | (1<<1) | (1<<4), SYS_TRIOUTCLR); | |
73 | ||
74 | /* enable GPIO2 if not already enabled */ | |
75 | au_writel(1, GPIO2_ENABLE); | |
76 | /* gpio2 208/9/10/11 are inputs */ | |
77 | au_writel((1<<8) | (1<<9) | (1<<10) | (1<<11), GPIO2_DIR); | |
78 | ||
79 | /* turn off power */ | |
80 | au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30), GPIO2_OUTPUT); | |
81 | #endif | |
82 | ||
83 | ||
84 | #ifdef CONFIG_PCI | |
85 | #if defined(__MIPSEB__) | |
86 | au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG); | |
87 | #else | |
88 | au_writel(0xf, Au1500_PCI_CFG); | |
89 | #endif | |
90 | #endif | |
91 | } |