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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mips/alchemy/devboards/pb1550/board_setup.c
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/*

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 *

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 * BRIEF MODULE DESCRIPTION

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 *	Alchemy Pb1550 board setup.

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 *

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 * Copyright 2000, 2008 MontaVista Software Inc.

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 * Author: MontaVista Software, Inc. <[email protected]>

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 *

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 *  This program is free software; you can redistribute  it and/or modify it

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 *  under  the terms of  the GNU General  Public License as published by the

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 *  Free Software Foundation;  either version 2 of the  License, or (at your

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 *  option) any later version.

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 *

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 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED

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 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF

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 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN

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 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,

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 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

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 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF

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 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

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 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT

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 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

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 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 *

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 *  You should have received a copy of the  GNU General Public License along

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 *  with this program; if not, write  to the Free Software Foundation, Inc.,

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 *  675 Mass Ave, Cambridge, MA 02139, USA.

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 */

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#include <linux/init.h>

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#include <linux/interrupt.h>

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#include <asm/mach-au1x00/au1000.h>

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#include <asm/mach-pb1x00/pb1550.h>

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#include <asm/mach-db1x00/bcsr.h>

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#include <asm/mach-au1x00/gpio.h>

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#include <prom.h>

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char irq_tab_alchemy[][5] __initdata = {

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	[12] = { -1, AU1550_PCI_INTB, AU1550_PCI_INTC, AU1550_PCI_INTD, AU1550_PCI_INTA }, /* IDSEL 12 - PCI slot 2 (left)  */

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	[13] = { -1, AU1550_PCI_INTA, AU1550_PCI_INTB, AU1550_PCI_INTC, AU1550_PCI_INTD }, /* IDSEL 13 - PCI slot 1 (right) */

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};

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const char *get_system_type(void)

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{

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	return "Alchemy Pb1550";

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}

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void __init board_setup(void)

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{

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	u32 pin_func;

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	bcsr_init(PB1550_BCSR_PHYS_ADDR,

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		  PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);

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	alchemy_gpio2_enable();

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	/*

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	 * Enable PSC1 SYNC for AC'97.  Normaly done in audio driver,

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	 * but it is board specific code, so put it here.

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	 */

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	pin_func = au_readl(SYS_PINFUNC);

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	au_sync();

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	pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;

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	au_writel(pin_func, SYS_PINFUNC);

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	bcsr_write(BCSR_PCMCIA, 0);	/* turn off PCMCIA power */

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	printk(KERN_INFO "AMD Alchemy Pb1550 Board\n");

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}

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static int __init pb1550_init_irq(void)

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{

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	irq_set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);

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	irq_set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);

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	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQF_TRIGGER_HIGH);

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	/* enable both PCMCIA card irqs in the shared line */

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	alchemy_gpio2_enable_int(201);

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	alchemy_gpio2_enable_int(202);

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	return 0;

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}

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arch_initcall(pb1550_init_irq);

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