| Daniel Mentz | 94787a1 | 2013-05-29 21:12:04 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2000-2003, 2008 MontaVista Software Inc. |
| 3 | * Author: MontaVista Software, Inc. <source@mvista.com> |
| 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 | */ |
| 25 | |
| 26 | #include <linux/gpio.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/interrupt.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/pm.h> |
| 31 | |
| 32 | #include <asm/reboot.h> |
| 33 | #include <asm/mach-au1x00/au1000.h> |
| 34 | |
| 35 | #include <prom.h> |
| 36 | |
| 37 | static void xxs1500_reset(char *c) |
| 38 | { |
| 39 | /* Jump to the reset vector */ |
| 40 | __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); |
| 41 | } |
| 42 | |
| 43 | static void xxs1500_power_off(void) |
| 44 | { |
| 45 | while (1) |
| 46 | asm volatile ( |
| 47 | " .set mips32 \n" |
| 48 | " wait \n" |
| 49 | " .set mips0 \n"); |
| 50 | } |
| 51 | |
| 52 | void __init board_setup(void) |
| 53 | { |
| 54 | u32 pin_func; |
| 55 | |
| 56 | pm_power_off = xxs1500_power_off; |
| 57 | _machine_halt = xxs1500_power_off; |
| 58 | _machine_restart = xxs1500_reset; |
| 59 | |
| 60 | alchemy_gpio1_input_enable(); |
| 61 | alchemy_gpio2_enable(); |
| 62 | |
| 63 | /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */ |
| 64 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3; |
| 65 | pin_func |= SYS_PF_UR3; |
| 66 | au_writel(pin_func, SYS_PINFUNC); |
| 67 | |
| 68 | /* Enable UART */ |
| 69 | alchemy_uart_enable(AU1000_UART3_PHYS_ADDR); |
| 70 | /* Enable DTR (MCR bit 0) = USB power up */ |
| 71 | __raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18)); |
| 72 | wmb(); |
| 73 | } |
| 74 | |
| 75 | static int __init xxs1500_init_irq(void) |
| 76 | { |
| 77 | irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH); |
| 78 | irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW); |
| 79 | irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW); |
| 80 | irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW); |
| 81 | irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW); |
| 82 | irq_set_irq_type(AU1500_GPIO207_INT, IRQF_TRIGGER_LOW); |
| 83 | |
| 84 | irq_set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW); |
| 85 | irq_set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW); |
| 86 | irq_set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW); |
| 87 | irq_set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW); |
| 88 | irq_set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* CF irq */ |
| 89 | irq_set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW); |
| 90 | |
| 91 | return 0; |
| 92 | } |
| 93 | arch_initcall(xxs1500_init_irq); |
