arch/mips/au1000/pb1550/board_setup.c

   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
  32 #include <asm/mach-au1x00/au1000.h>
  33 #include <asm/mach-pb1x00/pb1550.h>
  34
  35 void board_reset(void)
  36 {
  37         /* Hit BCSR.SYSTEM[RESET] */
  38         au_writew(au_readw(0xAF00001C) & ~BCSR_SYSTEM_RESET, 0xAF00001C);
  39 }
  40
  41 void __init board_setup(void)
  42 {
  43         u32 pin_func;
  44
  45         /*
  46          * Enable PSC1 SYNC for AC'97.  Normaly done in audio driver,
  47          * but it is board specific code, so put it here.
  48          */
  49         pin_func = au_readl(SYS_PINFUNC);
  50         au_sync();
  51         pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
  52         au_writel(pin_func, SYS_PINFUNC);
  53
  54         au_writel(0, (u32)bcsr | 0x10); /* turn off PCMCIA power */
  55         au_sync();
  56
  57         printk(KERN_INFO "AMD Alchemy Pb1550 Board\n");
  58 }