From: Andy Fleming Date: Fri, 18 Aug 2006 23:03:08 +0000 (-0500) Subject: [POWERPC] Fix interrupts on 8540 ADS board X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4c86cd9c59428a40233fb707f5de18caa5ab5cb7;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [POWERPC] Fix interrupts on 8540 ADS board * Fixed 8540 ADS support for the new irq layer * Fixed 8540 ADS support for mapping PCI interrupts * Updated 8540 ADS to use device tree for interrupt assignment and sense values Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 06a497676c99..9d2acfbbeccd 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -37,79 +37,7 @@ 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) { @@ -119,44 +47,63 @@ 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 *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); + 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); } /* @@ -165,7 +112,9 @@ 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); @@ -186,8 +135,7 @@ 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.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = mpc85xx_map_irq; + ppc_md.pcibios_fixup = mpc85xx_pcibios_fixup; ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif