/* * 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(const 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 */