X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2F85xx%2Fmpc85xx_ads.c;h=5eeff370f5fcaa7084f758110c2a1f710822a5c3;hb=9464c7cf61b9433057924c36e6e02f303a00e768;hp=9d2acfbbeccd15701ddfd505d1faa052ea65a6aa;hpb=41689045f6a3cbe0550e1d34e9cc20d2e8c432ba;p=linux-2.6.git diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 9d2acfbbe..5eeff370f 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -11,6 +11,7 @@ * option) any later version. */ +#include #include #include #include @@ -37,7 +38,79 @@ unsigned long isa_io_base = 0; unsigned long isa_mem_base = 0; #endif +/* + * Internal interrupts are all Level Sensitive, and Positive Polarity + * + * Note: Likely, this table and the following function should be + * obtained and derived from the OF Device Tree. + */ +static u_char mpc85xx_ads_openpic_initsenses[] __initdata = { + MPC85XX_INTERNAL_IRQ_SENSES, + 0x0, /* External 0: */ +#if defined(CONFIG_PCI) + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 1: PCI slot 0 */ + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 2: PCI slot 1 */ + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 3: PCI slot 2 */ + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext 4: PCI slot 3 */ +#else + 0x0, /* External 1: */ + 0x0, /* External 2: */ + 0x0, /* External 3: */ + 0x0, /* External 4: */ +#endif + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 5: PHY */ + 0x0, /* External 6: */ + (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 7: PHY */ + 0x0, /* External 8: */ + 0x0, /* External 9: */ + 0x0, /* External 10: */ + 0x0, /* External 11: */ +}; + #ifdef CONFIG_PCI +/* + * interrupt routing + */ + +int +mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) +{ + static char pci_irq_table[][4] = + /* + * This is little evil, but works around the fact + * that revA boards have IDSEL starting at 18 + * and others boards (older) start at 12 + * + * PCI IDSEL/INTPIN->INTLINE + * A B C D + */ + { + {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 2 */ + {PIRQD, PIRQA, PIRQB, PIRQC}, + {PIRQC, PIRQD, PIRQA, PIRQB}, + {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 5 */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 12 */ + {PIRQD, PIRQA, PIRQB, PIRQC}, + {PIRQC, PIRQD, PIRQA, PIRQB}, + {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 15 */ + {0, 0, 0, 0}, /* -- */ + {0, 0, 0, 0}, /* -- */ + {PIRQA, PIRQB, PIRQC, PIRQD}, /* IDSEL 18 */ + {PIRQD, PIRQA, PIRQB, PIRQC}, + {PIRQC, PIRQD, PIRQA, PIRQB}, + {PIRQB, PIRQC, PIRQD, PIRQA}, /* IDSEL 21 */ + }; + + const long min_idsel = 2, max_idsel = 21, irqs_per_slot = 4; + return PCI_IRQ_TABLE_LOOKUP; +} + int mpc85xx_exclude_device(u_char bus, u_char devfn) { @@ -47,63 +120,44 @@ mpc85xx_exclude_device(u_char bus, u_char devfn) return PCIBIOS_SUCCESSFUL; } -void __init -mpc85xx_pcibios_fixup(void) -{ - struct pci_dev *dev = NULL; - - for_each_pci_dev(dev) - pci_read_irq_line(dev); -} #endif /* CONFIG_PCI */ void __init mpc85xx_ads_pic_init(void) { - struct mpic *mpic; - struct resource r; - struct device_node *np = NULL; - - np = of_find_node_by_type(np, "open-pic"); - - if (np == NULL) { - printk(KERN_ERR "Could not find open-pic node\n"); - return; - } - - if(of_address_to_resource(np, 0, &r)) { - printk(KERN_ERR "Could not map mpic register space\n"); - of_node_put(np); - return; - } - - mpic = mpic_alloc(np, r.start, - MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, - 4, 0, " OpenPIC "); - BUG_ON(mpic == NULL); - of_node_put(np); - - mpic_assign_isu(mpic, 0, r.start + 0x10200); - mpic_assign_isu(mpic, 1, r.start + 0x10280); - mpic_assign_isu(mpic, 2, r.start + 0x10300); - mpic_assign_isu(mpic, 3, r.start + 0x10380); - mpic_assign_isu(mpic, 4, r.start + 0x10400); - mpic_assign_isu(mpic, 5, r.start + 0x10480); - mpic_assign_isu(mpic, 6, r.start + 0x10500); - mpic_assign_isu(mpic, 7, r.start + 0x10580); - - /* Unused on this platform (leave room for 8548) */ - mpic_assign_isu(mpic, 8, r.start + 0x10600); - mpic_assign_isu(mpic, 9, r.start + 0x10680); - mpic_assign_isu(mpic, 10, r.start + 0x10700); - mpic_assign_isu(mpic, 11, r.start + 0x10780); - - /* External Interrupts */ - mpic_assign_isu(mpic, 12, r.start + 0x10000); - mpic_assign_isu(mpic, 13, r.start + 0x10080); - mpic_assign_isu(mpic, 14, r.start + 0x10100); - - mpic_init(mpic); + struct mpic *mpic1; + phys_addr_t OpenPIC_PAddr; + + /* Determine the Physical Address of the OpenPIC regs */ + OpenPIC_PAddr = get_immrbase() + MPC85xx_OPENPIC_OFFSET; + + mpic1 = mpic_alloc(OpenPIC_PAddr, + MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + 4, MPC85xx_OPENPIC_IRQ_OFFSET, 0, 250, + mpc85xx_ads_openpic_initsenses, + sizeof(mpc85xx_ads_openpic_initsenses), + " OpenPIC "); + BUG_ON(mpic1 == NULL); + mpic_assign_isu(mpic1, 0, OpenPIC_PAddr + 0x10200); + mpic_assign_isu(mpic1, 1, OpenPIC_PAddr + 0x10280); + mpic_assign_isu(mpic1, 2, OpenPIC_PAddr + 0x10300); + mpic_assign_isu(mpic1, 3, OpenPIC_PAddr + 0x10380); + mpic_assign_isu(mpic1, 4, OpenPIC_PAddr + 0x10400); + mpic_assign_isu(mpic1, 5, OpenPIC_PAddr + 0x10480); + mpic_assign_isu(mpic1, 6, OpenPIC_PAddr + 0x10500); + mpic_assign_isu(mpic1, 7, OpenPIC_PAddr + 0x10580); + + /* dummy mappings to get to 48 */ + mpic_assign_isu(mpic1, 8, OpenPIC_PAddr + 0x10600); + mpic_assign_isu(mpic1, 9, OpenPIC_PAddr + 0x10680); + mpic_assign_isu(mpic1, 10, OpenPIC_PAddr + 0x10700); + mpic_assign_isu(mpic1, 11, OpenPIC_PAddr + 0x10780); + + /* External ints */ + mpic_assign_isu(mpic1, 12, OpenPIC_PAddr + 0x10000); + mpic_assign_isu(mpic1, 13, OpenPIC_PAddr + 0x10080); + mpic_assign_isu(mpic1, 14, OpenPIC_PAddr + 0x10100); + mpic_init(mpic1); } /* @@ -112,9 +166,7 @@ void __init mpc85xx_ads_pic_init(void) static void __init mpc85xx_ads_setup_arch(void) { struct device_node *cpu; -#ifdef CONFIG_PCI struct device_node *np; -#endif if (ppc_md.progress) ppc_md.progress("mpc85xx_ads_setup_arch()", 0); @@ -135,7 +187,8 @@ static void __init mpc85xx_ads_setup_arch(void) for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) add_bridge(np); - ppc_md.pcibios_fixup = mpc85xx_pcibios_fixup; + ppc_md.pci_swizzle = common_swizzle; + ppc_md.pci_map_irq = mpc85xx_map_irq; ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif