| /* |
| * Copyright 2000-2003, 2008 MontaVista Software Inc. |
| * Author: MontaVista Software, Inc. <source@mvista.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/gpio.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| #include <linux/pm.h> |
| |
| #include <asm/reboot.h> |
| #include <asm/mach-au1x00/au1000.h> |
| |
| #include <prom.h> |
| |
| static void xxs1500_reset(char *c) |
| { |
| /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ |
| au_writel(0x00000000, 0xAE00001C); |
| } |
| |
| static void xxs1500_power_off(void) |
| { |
| printk(KERN_ALERT "It's now safe to remove power\n"); |
| while (1) |
| asm volatile (".set mips3 ; wait ; .set mips1"); |
| } |
| |
| void __init board_setup(void) |
| { |
| u32 pin_func; |
| |
| pm_power_off = xxs1500_power_off; |
| _machine_halt = xxs1500_power_off; |
| _machine_restart = xxs1500_reset; |
| |
| alchemy_gpio1_input_enable(); |
| alchemy_gpio2_enable(); |
| |
| /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */ |
| pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3; |
| pin_func |= SYS_PF_UR3; |
| au_writel(pin_func, SYS_PINFUNC); |
| |
| /* Enable UART */ |
| au_writel(0x01, UART3_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */ |
| mdelay(10); |
| au_writel(0x03, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */ |
| mdelay(10); |
| |
| /* Enable DTR = USB power up */ |
| au_writel(0x01, UART3_ADDR + UART_MCR); /* UART_MCR_DTR is 0x01??? */ |
| |
| #ifdef CONFIG_PCI |
| #if defined(__MIPSEB__) |
| au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG); |
| #else |
| au_writel(0xf, Au1500_PCI_CFG); |
| #endif |
| #endif |
| } |
| |
| static int __init xxs1500_init_irq(void) |
| { |
| set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH); |
| set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO207_INT, IRQF_TRIGGER_LOW); |
| |
| set_irq_type(AU1500_GPIO0_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO1_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO2_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO3_INT, IRQF_TRIGGER_LOW); |
| set_irq_type(AU1500_GPIO4_INT, IRQF_TRIGGER_LOW); /* CF irq */ |
| set_irq_type(AU1500_GPIO5_INT, IRQF_TRIGGER_LOW); |
| |
| return 0; |
| } |
| arch_initcall(xxs1500_init_irq); |