Commit | Line | Data |
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1da177e4 | 1 | /* |
7ff83f21 SS |
2 | * Copyright 2000-2003, 2008 MontaVista Software Inc. |
3 | * Author: MontaVista Software, Inc. <source@mvista.com> | |
1da177e4 LT |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by the | |
7 | * Free Software Foundation; either version 2 of the License, or (at your | |
8 | * option) any later version. | |
9 | * | |
10 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
11 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
12 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | |
13 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
14 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
15 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
16 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
17 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
18 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
19 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
22 | * with this program; if not, write to the Free Software Foundation, Inc., | |
23 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
ce28f94c | 25 | |
b6c9f105 | 26 | #include <linux/gpio.h> |
1da177e4 | 27 | #include <linux/init.h> |
7e50b2b7 | 28 | #include <linux/interrupt.h> |
1da177e4 | 29 | #include <linux/delay.h> |
32fd6901 | 30 | #include <linux/pm.h> |
1da177e4 | 31 | |
32fd6901 | 32 | #include <asm/reboot.h> |
f9e8b782 | 33 | #include <asm/mach-au1x00/au1000.h> |
1da177e4 | 34 | |
7179380e ML |
35 | #include <prom.h> |
36 | ||
32fd6901 | 37 | static void xxs1500_reset(char *c) |
1da177e4 LT |
38 | { |
39 | /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ | |
40 | au_writel(0x00000000, 0xAE00001C); | |
41 | } | |
42 | ||
32fd6901 ML |
43 | static void xxs1500_power_off(void) |
44 | { | |
45 | printk(KERN_ALERT "It's now safe to remove power\n"); | |
46 | while (1) | |
47 | asm volatile (".set mips3 ; wait ; .set mips1"); | |
48 | } | |
49 | ||
1da177e4 LT |
50 | void __init board_setup(void) |
51 | { | |
52 | u32 pin_func; | |
42a3b4f2 | 53 | |
32fd6901 ML |
54 | pm_power_off = xxs1500_power_off; |
55 | _machine_halt = xxs1500_power_off; | |
56 | _machine_restart = xxs1500_reset; | |
57 | ||
b6c9f105 ML |
58 | alchemy_gpio1_input_enable(); |
59 | alchemy_gpio2_enable(); | |
60 | ||
7ff83f21 SS |
61 | /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */ |
62 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3; | |
1da177e4 LT |
63 | pin_func |= SYS_PF_UR3; |
64 | au_writel(pin_func, SYS_PINFUNC); | |
65 | ||
7ff83f21 SS |
66 | /* Enable UART */ |
67 | au_writel(0x01, UART3_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */ | |
1da177e4 | 68 | mdelay(10); |
7ff83f21 | 69 | au_writel(0x03, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */ |
1da177e4 LT |
70 | mdelay(10); |
71 | ||
7ff83f21 SS |
72 | /* Enable DTR = USB power up */ |
73 | au_writel(0x01, UART3_ADDR + UART_MCR); /* UART_MCR_DTR is 0x01??? */ | |
1da177e4 | 74 | |
1da177e4 LT |
75 | #ifdef CONFIG_PCI |
76 | #if defined(__MIPSEB__) | |
7ff83f21 | 77 | au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG); |
1da177e4 LT |
78 | #else |
79 | au_writel(0xf, Au1500_PCI_CFG); | |
80 | #endif | |
81 | #endif | |
82 | } | |
7e50b2b7 ML |
83 | |
84 | static int __init xxs1500_init_irq(void) | |
85 | { | |
78814465 ML |
86 | set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH); |
87 | set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW); | |
88 | set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW); | |
89 | set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW); | |
90 | set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW); | |
91 | set_irq_type(AU1500_GPIO207_INT, IRQF_TRIGGER_LOW); | |
7e50b2b7 | 92 | |
78814465 ML |
93 | set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW); |
94 | set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW); | |
95 | set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW); | |
96 | set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW); | |
97 | set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* CF irq */ | |
98 | set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW); | |
7e50b2b7 ML |
99 | |
100 | return 0; | |
101 | } | |
102 | arch_initcall(xxs1500_init_irq); |