diff options
Diffstat (limited to 'kernel/arch/mips/pci/fixup-pmcmsp.c')
| -rw-r--r-- | kernel/arch/mips/pci/fixup-pmcmsp.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/kernel/arch/mips/pci/fixup-pmcmsp.c b/kernel/arch/mips/pci/fixup-pmcmsp.c new file mode 100644 index 000000000..fab405c21 --- /dev/null +++ b/kernel/arch/mips/pci/fixup-pmcmsp.c @@ -0,0 +1,216 @@ +/* + * 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 */ |