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Commit 6f95e60a authored by Marc St-Jean's avatar Marc St-Jean Committed by Ralf Baechle
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[MIPS] PMC MSP71xx PCI support 



Patch to add PCI support for the PMC-Sierra MSP71xx devices.

Signed-off-by: default avatarMarc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 9267a30d

arch/mips/pci/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ obj-$(CONFIG_LEMOTE_FULONG) += fixup-lm2e.o ops-bonito64.o 
obj-$(CONFIG_MIPS_MALTA)	+= fixup-malta.o

obj-$(CONFIG_MOMENCO_OCELOT)	+= fixup-ocelot.o pci-ocelot.o

obj-$(CONFIG_MOMENCO_OCELOT_3)	+= fixup-ocelot3.o

obj-$(CONFIG_PMC_MSP7120_GW)	+= fixup-pmcmsp.o ops-pmcmsp.o

obj-$(CONFIG_PMC_MSP7120_EVAL)	+= fixup-pmcmsp.o ops-pmcmsp.o

obj-$(CONFIG_PMC_MSP7120_FPGA)	+= fixup-pmcmsp.o ops-pmcmsp.o

obj-$(CONFIG_PMC_YOSEMITE)	+= fixup-yosemite.o ops-titan.o ops-titan-ht.o \

				   pci-yosemite.o

obj-$(CONFIG_SGI_IP27)		+= ops-bridge.o pci-ip27.o

arch/mips/pci/fixup-pmcmsp.c

0 → 100644
+216 −0
Original line number Diff line number Diff line 
/*

 * PMC-Sierra MSP board specific pci fixups.

 *

 * Copyright 2001 MontaVista Software Inc.

 * Copyright 2005-2007 PMC-Sierra, Inc

 *

 * Author: MontaVista Software, Inc.

 *         	ppopov@mvista.com or 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.

 */



#ifdef CONFIG_PCI



#include <linux/types.h>

#include <linux/pci.h>

#include <linux/kernel.h>

#include <linux/init.h>



#include <asm/byteorder.h>



#include <msp_pci.h>

#include <msp_cic_int.h>



/* PCI interrupt pins */

#define IRQ4	MSP_INT_EXT4

#define IRQ5	MSP_INT_EXT5

#define IRQ6	MSP_INT_EXT6



#if defined(CONFIG_PMC_MSP7120_GW)

/* Garibaldi Board IRQ wiring to PCI slots */

static char irq_tab[][5] __initdata = {

	/* INTA    INTB    INTC    INTD */

	{0,     0,      0,      0,      0 },    /*    (AD[0]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[1]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[2]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[3]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[4]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[5]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[6]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[7]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[8]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[9]): Unused */

	{0,     0,      0,      0,      0 },    /*  0 (AD[10]): Unused */

	{0,     0,      0,      0,      0 },    /*  1 (AD[11]): Unused */

	{0,     0,      0,      0,      0 },    /*  2 (AD[12]): Unused */

	{0,     0,      0,      0,      0 },    /*  3 (AD[13]): Unused */

	{0,     0,      0,      0,      0 },    /*  4 (AD[14]): Unused */

	{0,     0,      0,      0,      0 },    /*  5 (AD[15]): Unused */

	{0,     0,      0,      0,      0 },    /*  6 (AD[16]): Unused */

	{0,     0,      0,      0,      0 },    /*  7 (AD[17]): Unused */

	{0,     0,      0,      0,      0 },    /*  8 (AD[18]): Unused */

	{0,     0,      0,      0,      0 },    /*  9 (AD[19]): Unused */

	{0,     0,      0,      0,      0 },    /* 10 (AD[20]): Unused */

	{0,     0,      0,      0,      0 },    /* 11 (AD[21]): Unused */

	{0,     0,      0,      0,      0 },    /* 12 (AD[22]): Unused */

	{0,     0,      0,      0,      0 },    /* 13 (AD[23]): Unused */

	{0,     0,      0,      0,      0 },    /* 14 (AD[24]): Unused */

	{0,     0,      0,      0,      0 },    /* 15 (AD[25]): Unused */

	{0,     0,      0,      0,      0 },    /* 16 (AD[26]): Unused */

	{0,     0,      0,      0,      0 },    /* 17 (AD[27]): Unused */

	{0,     IRQ4,   IRQ4,   0,      0 },    /* 18 (AD[28]): slot 0 */

	{0,     0,      0,      0,      0 },    /* 19 (AD[29]): Unused */

	{0,     IRQ5,   IRQ5,   0,      0 },    /* 20 (AD[30]): slot 1 */

	{0,     IRQ6,   IRQ6,   0,      0 }     /* 21 (AD[31]): slot 2 */

};



#elif defined(CONFIG_PMC_MSP7120_EVAL)



/* MSP7120 Eval Board IRQ wiring to PCI slots */

static char irq_tab[][5] __initdata = {

	/* INTA    INTB    INTC    INTD */

	{0,     0,      0,      0,      0 },    /*    (AD[0]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[1]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[2]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[3]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[4]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[5]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[6]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[7]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[8]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[9]): Unused */

	{0,     0,      0,      0,      0 },    /*  0 (AD[10]): Unused */

	{0,     0,      0,      0,      0 },    /*  1 (AD[11]): Unused */

	{0,     0,      0,      0,      0 },    /*  2 (AD[12]): Unused */

	{0,     0,      0,      0,      0 },    /*  3 (AD[13]): Unused */

	{0,     0,      0,      0,      0 },    /*  4 (AD[14]): Unused */

	{0,     0,      0,      0,      0 },    /*  5 (AD[15]): Unused */

	{0,     IRQ6,   IRQ6,   0,      0 },    /*  6 (AD[16]): slot 3 (mini) */

	{0,     IRQ5,   IRQ5,   0,      0 },    /*  7 (AD[17]): slot 2 (mini) */

	{0,     IRQ4,   IRQ4,   IRQ4,   IRQ4},  /*  8 (AD[18]): slot 0 (PCI) */

	{0,     IRQ5,   IRQ5,   IRQ5,   IRQ5},  /*  9 (AD[19]): slot 1 (PCI) */

	{0,     0,      0,      0,      0 },    /* 10 (AD[20]): Unused */

	{0,     0,      0,      0,      0 },    /* 11 (AD[21]): Unused */

	{0,     0,      0,      0,      0 },    /* 12 (AD[22]): Unused */

	{0,     0,      0,      0,      0 },    /* 13 (AD[23]): Unused */

	{0,     0,      0,      0,      0 },    /* 14 (AD[24]): Unused */

	{0,     0,      0,      0,      0 },    /* 15 (AD[25]): Unused */

	{0,     0,      0,      0,      0 },    /* 16 (AD[26]): Unused */

	{0,     0,      0,      0,      0 },    /* 17 (AD[27]): Unused */

	{0,     0,      0,      0,      0 },    /* 18 (AD[28]): Unused */

	{0,     0,      0,      0,      0 },    /* 19 (AD[29]): Unused */

	{0,     0,      0,      0,      0 },    /* 20 (AD[30]): Unused */

	{0,     0,      0,      0,      0 }     /* 21 (AD[31]): Unused */

};



#else



/* Unknown board -- don't assign any IRQs */

static char irq_tab[][5] __initdata = {

	/* INTA    INTB    INTC    INTD */

	{0,     0,      0,      0,      0 },    /*    (AD[0]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[1]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[2]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[3]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[4]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[5]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[6]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[7]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[8]): Unused */

	{0,     0,      0,      0,      0 },    /*    (AD[9]): Unused */

	{0,     0,      0,      0,      0 },    /*  0 (AD[10]): Unused */

	{0,     0,      0,      0,      0 },    /*  1 (AD[11]): Unused */

	{0,     0,      0,      0,      0 },    /*  2 (AD[12]): Unused */

	{0,     0,      0,      0,      0 },    /*  3 (AD[13]): Unused */

	{0,     0,      0,      0,      0 },    /*  4 (AD[14]): Unused */

	{0,     0,      0,      0,      0 },    /*  5 (AD[15]): Unused */

	{0,     0,      0,      0,      0 },    /*  6 (AD[16]): Unused */

	{0,     0,      0,      0,      0 },    /*  7 (AD[17]): Unused */

	{0,     0,      0,      0,      0 },    /*  8 (AD[18]): Unused */

	{0,     0,      0,      0,      0 },    /*  9 (AD[19]): Unused */

	{0,     0,      0,      0,      0 },    /* 10 (AD[20]): Unused */

	{0,     0,      0,      0,      0 },    /* 11 (AD[21]): Unused */

	{0,     0,      0,      0,      0 },    /* 12 (AD[22]): Unused */

	{0,     0,      0,      0,      0 },    /* 13 (AD[23]): Unused */

	{0,     0,      0,      0,      0 },    /* 14 (AD[24]): Unused */

	{0,     0,      0,      0,      0 },    /* 15 (AD[25]): Unused */

	{0,     0,      0,      0,      0 },    /* 16 (AD[26]): Unused */

	{0,     0,      0,      0,      0 },    /* 17 (AD[27]): Unused */

	{0,     0,      0,      0,      0 },    /* 18 (AD[28]): Unused */

	{0,     0,      0,      0,      0 },    /* 19 (AD[29]): Unused */

	{0,     0,      0,      0,      0 },    /* 20 (AD[30]): Unused */

	{0,     0,      0,      0,      0 }     /* 21 (AD[31]): Unused */

};

#endif



/*****************************************************************************

 *

 *  FUNCTION: pcibios_plat_dev_init

 *  _________________________________________________________________________

 *

 *  DESCRIPTION: Perform platform specific device initialization at

 *               pci_enable_device() time.

 *               None are needed for the MSP7120 PCI Controller.

 *

 *  INPUTS:      dev     - structure describing the PCI device

 *

 *  OUTPUTS:     none

 *

 *  RETURNS:     PCIBIOS_SUCCESSFUL

 *

 ****************************************************************************/

int pcibios_plat_dev_init(struct pci_dev *dev)

{

	return PCIBIOS_SUCCESSFUL;

}



/*****************************************************************************

 *

 *  FUNCTION: pcibios_map_irq

 *  _________________________________________________________________________

 *

 *  DESCRIPTION: Perform board supplied PCI IRQ mapping routine.

 *

 *  INPUTS:      dev     - unused

 *               slot    - PCI slot. Identified by which bit of the AD[] bus

 *                         drives the IDSEL line. AD[10] is 0, AD[31] is

 *                         slot 21.

 *               pin     - numbered using the scheme of the PCI_INTERRUPT_PIN

 *                         field of the config header.

 *

 *  OUTPUTS:     none

 *

 *  RETURNS:     IRQ number

 *

 ****************************************************************************/

int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)

{

#if !defined(CONFIG_PMC_MSP7120_GW) && !defined(CONFIG_PMC_MSP7120_EVAL)

	printk(KERN_WARNING "PCI: unknown board, no PCI IRQs assigned.\n");

#endif

	printk(KERN_WARNING "PCI: irq_tab returned %d for slot=%d pin=%d\n",

		irq_tab[slot][pin], slot, pin);



	return irq_tab[slot][pin];

}



#endif	/* CONFIG_PCI */