1/* 2 * 3 * BRIEF MODULE DESCRIPTION 4 * Alchemy Pb1550 board setup. 5 * 6 * Copyright 2000, 2008 MontaVista Software Inc. 7 * Author: MontaVista Software, Inc. <source@mvista.com> 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 20 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * You should have received a copy of the GNU General Public License along 26 * with this program; if not, write to the Free Software Foundation, Inc., 27 * 675 Mass Ave, Cambridge, MA 02139, USA. 28 */ 29 30#include <linux/init.h> 31#include <linux/interrupt.h> 32 33#include <asm/mach-au1x00/au1000.h> 34#include <asm/mach-pb1x00/pb1550.h> 35 36#include <prom.h> 37 38 39char irq_tab_alchemy[][5] __initdata = { 40 [12] = { -1, INTB, INTC, INTD, INTA }, /* IDSEL 12 - PCI slot 2 (left) */ 41 [13] = { -1, INTA, INTB, INTC, INTD }, /* IDSEL 13 - PCI slot 1 (right) */ 42}; 43 44struct au1xxx_irqmap __initdata au1xxx_irq_map[] = { 45 { AU1000_GPIO_0, IRQF_TRIGGER_LOW, 0 }, 46 { AU1000_GPIO_1, IRQF_TRIGGER_LOW, 0 }, 47}; 48 49const char *get_system_type(void) 50{ 51 return "Alchemy Pb1550"; 52} 53 54void board_reset(void) 55{ 56 /* Hit BCSR.SYSTEM[RESET] */ 57 au_writew(au_readw(0xAF00001C) & ~BCSR_SYSTEM_RESET, 0xAF00001C); 58} 59 60void __init board_init_irq(void) 61{ 62 au1xxx_setup_irqmap(au1xxx_irq_map, ARRAY_SIZE(au1xxx_irq_map)); 63} 64 65void __init board_setup(void) 66{ 67 u32 pin_func; 68 69#ifdef CONFIG_SERIAL_8250_CONSOLE 70 char *argptr; 71 argptr = prom_getcmdline(); 72 argptr = strstr(argptr, "console="); 73 if (argptr == NULL) { 74 argptr = prom_getcmdline(); 75 strcat(argptr, " console=ttyS0,115200"); 76 } 77#endif 78 79 /* 80 * Enable PSC1 SYNC for AC'97. Normaly done in audio driver, 81 * but it is board specific code, so put it here. 82 */ 83 pin_func = au_readl(SYS_PINFUNC); 84 au_sync(); 85 pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; 86 au_writel(pin_func, SYS_PINFUNC); 87 88 au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */ 89 au_sync(); 90 91 printk(KERN_INFO "AMD Alchemy Pb1550 Board\n"); 92} 93