1/* 2 * 3 * BRIEF MODULE DESCRIPTION 4 * Alchemy Pb1550 board setup. 5 * 6 * Copyright 2000 MontaVista Software Inc. 7 * Author: MontaVista Software, Inc. 8 * ppopov@mvista.com or source@mvista.com 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 * 15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * You should have received a copy of the GNU General Public License along 27 * with this program; if not, write to the Free Software Foundation, Inc., 28 * 675 Mass Ave, Cambridge, MA 02139, USA. 29 */ 30#include <linux/init.h> 31#include <linux/sched.h> 32#include <linux/ioport.h> 33#include <linux/mm.h> 34#include <linux/console.h> 35#include <linux/mc146818rtc.h> 36#include <linux/delay.h> 37 38#include <asm/cpu.h> 39#include <asm/bootinfo.h> 40#include <asm/irq.h> 41#include <asm/mipsregs.h> 42#include <asm/reboot.h> 43#include <asm/pgtable.h> 44#include <asm/mach-au1x00/au1000.h> 45#include <asm/mach-pb1x00/pb1550.h> 46 47void board_reset (void) 48{ 49 /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ 50 au_writew(au_readw(0xAF00001C) & ~(1<<15), 0xAF00001C); 51} 52 53void __init board_setup(void) 54{ 55 u32 pin_func; 56 57 /* Enable PSC1 SYNC for AC97. Normaly done in audio driver, 58 * but it is board specific code, so put it here. 59 */ 60 pin_func = au_readl(SYS_PINFUNC); 61 au_sync(); 62 pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; 63 au_writel(pin_func, SYS_PINFUNC); 64 65 au_writel(0, (u32)bcsr|0x10); /* turn off pcmcia power */ 66 au_sync(); 67 68 printk("AMD Alchemy Pb1550 Board\n"); 69} 70