diff options
Diffstat (limited to 'arch/alpha/kernel/sys_sable.c')
| -rw-r--r-- | arch/alpha/kernel/sys_sable.c | 294 |
1 files changed, 2 insertions, 292 deletions
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c index 930005b2f630..49f5c75134ec 100644 --- a/arch/alpha/kernel/sys_sable.c +++ b/arch/alpha/kernel/sys_sable.c @@ -212,232 +212,6 @@ sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) } #endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) */ -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) - -/***********************************************************************/ -/* LYNX hardware specifics - */ -/* - * For LYNX, which is also baroque, we manage 64 IRQs, via a custom IC. - * - * Bit Meaning Kernel IRQ - *------------------------------------------ - * 0 - * 1 - * 2 - * 3 mouse 12 - * 4 - * 5 - * 6 keyboard 1 - * 7 floppy 6 - * 8 COM2 3 - * 9 parallel port 7 - *10 EISA irq 3 - - *11 EISA irq 4 - - *12 EISA irq 5 5 - *13 EISA irq 6 - - *14 EISA irq 7 - - *15 COM1 4 - *16 EISA irq 9 9 - *17 EISA irq 10 10 - *18 EISA irq 11 11 - *19 EISA irq 12 - - *20 - *21 EISA irq 14 14 - *22 EISA irq 15 15 - *23 IIC - - *24 VGA (builtin) - - *25 - *26 - *27 - *28 NCR810 (builtin) 28 - *29 - *30 - *31 - *32 PCI 0 slot 4 A primary bus 32 - *33 PCI 0 slot 4 B primary bus 33 - *34 PCI 0 slot 4 C primary bus 34 - *35 PCI 0 slot 4 D primary bus - *36 PCI 0 slot 5 A primary bus - *37 PCI 0 slot 5 B primary bus - *38 PCI 0 slot 5 C primary bus - *39 PCI 0 slot 5 D primary bus - *40 PCI 0 slot 6 A primary bus - *41 PCI 0 slot 6 B primary bus - *42 PCI 0 slot 6 C primary bus - *43 PCI 0 slot 6 D primary bus - *44 PCI 0 slot 7 A primary bus - *45 PCI 0 slot 7 B primary bus - *46 PCI 0 slot 7 C primary bus - *47 PCI 0 slot 7 D primary bus - *48 PCI 0 slot 0 A secondary bus - *49 PCI 0 slot 0 B secondary bus - *50 PCI 0 slot 0 C secondary bus - *51 PCI 0 slot 0 D secondary bus - *52 PCI 0 slot 1 A secondary bus - *53 PCI 0 slot 1 B secondary bus - *54 PCI 0 slot 1 C secondary bus - *55 PCI 0 slot 1 D secondary bus - *56 PCI 0 slot 2 A secondary bus - *57 PCI 0 slot 2 B secondary bus - *58 PCI 0 slot 2 C secondary bus - *59 PCI 0 slot 2 D secondary bus - *60 PCI 0 slot 3 A secondary bus - *61 PCI 0 slot 3 B secondary bus - *62 PCI 0 slot 3 C secondary bus - *63 PCI 0 slot 3 D secondary bus - */ - -static void -lynx_update_irq_hw(unsigned long bit, unsigned long mask) -{ - /* - * Write the AIR register on the T3/T4 with the - * address of the IC mask register (offset 0x40) - */ - *(vulp)T2_AIR = 0x40; - mb(); - *(vulp)T2_AIR; /* re-read to force write */ - mb(); - *(vulp)T2_DIR = mask; - mb(); - mb(); -} - -static void -lynx_ack_irq_hw(unsigned long bit) -{ - *(vulp)T2_VAR = (u_long) bit; - mb(); - mb(); -} - -static irq_swizzle_t lynx_irq_swizzle = { - { /* irq_to_mask */ - -1, 6, -1, 8, 15, 12, 7, 9, /* pseudo PIC 0-7 */ - -1, 16, 17, 18, 3, -1, 21, 22, /* pseudo PIC 8-15 */ - -1, -1, -1, -1, -1, -1, -1, -1, /* pseudo */ - -1, -1, -1, -1, 28, -1, -1, -1, /* pseudo */ - 32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */ - 40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */ - 48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */ - 56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */ - }, - { /* mask_to_irq */ - -1, -1, -1, 12, -1, -1, 1, 6, /* mask 0-7 */ - 3, 7, -1, -1, 5, -1, -1, 4, /* mask 8-15 */ - 9, 10, 11, -1, -1, 14, 15, -1, /* mask 16-23 */ - -1, -1, -1, -1, 28, -1, -1, -1, /* mask 24-31 */ - 32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */ - 40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */ - 48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */ - 56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */ - }, - -1, - lynx_update_irq_hw, - lynx_ack_irq_hw -}; - -static void __init -lynx_init_irq(void) -{ - sable_lynx_irq_swizzle = &lynx_irq_swizzle; - sable_lynx_init_irq(64); -} - -/* - * PCI Fixup configuration for ALPHA LYNX (2100A) - * - * The device to slot mapping looks like: - * - * Slot Device - * 0 none - * 1 none - * 2 PCI-EISA bridge - * 3 PCI-PCI bridge - * 4 NCR 810 (Demi-Lynx only) - * 5 none - * 6 PCI on board slot 4 - * 7 PCI on board slot 5 - * 8 PCI on board slot 6 - * 9 PCI on board slot 7 - * - * And behind the PPB we have: - * - * 11 PCI on board slot 0 - * 12 PCI on board slot 1 - * 13 PCI on board slot 2 - * 14 PCI on board slot 3 - */ -/* - * NOTE: the IRQ assignments below are arbitrary, but need to be consistent - * with the values in the irq swizzling tables above. - */ - -static int -lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[19][5] = { - /*INT INTA INTB INTC INTD */ - { -1, -1, -1, -1, -1}, /* IdSel 13, PCEB */ - { -1, -1, -1, -1, -1}, /* IdSel 14, PPB */ - { 28, 28, 28, 28, 28}, /* IdSel 15, NCR demi */ - { -1, -1, -1, -1, -1}, /* IdSel 16, none */ - { 32, 32, 33, 34, 35}, /* IdSel 17, slot 4 */ - { 36, 36, 37, 38, 39}, /* IdSel 18, slot 5 */ - { 40, 40, 41, 42, 43}, /* IdSel 19, slot 6 */ - { 44, 44, 45, 46, 47}, /* IdSel 20, slot 7 */ - { -1, -1, -1, -1, -1}, /* IdSel 22, none */ - /* The following are actually behind the PPB. */ - { -1, -1, -1, -1, -1}, /* IdSel 16 none */ - { 28, 28, 28, 28, 28}, /* IdSel 17 NCR lynx */ - { -1, -1, -1, -1, -1}, /* IdSel 18 none */ - { -1, -1, -1, -1, -1}, /* IdSel 19 none */ - { -1, -1, -1, -1, -1}, /* IdSel 20 none */ - { -1, -1, -1, -1, -1}, /* IdSel 21 none */ - { 48, 48, 49, 50, 51}, /* IdSel 22 slot 0 */ - { 52, 52, 53, 54, 55}, /* IdSel 23 slot 1 */ - { 56, 56, 57, 58, 59}, /* IdSel 24 slot 2 */ - { 60, 60, 61, 62, 63} /* IdSel 25 slot 3 */ - }; - const long min_idsel = 2, max_idsel = 20, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - -static u8 -lynx_swizzle(struct pci_dev *dev, u8 *pinp) -{ - int slot, pin = *pinp; - - if (dev->bus->number == 0) { - slot = PCI_SLOT(dev->devfn); - } - /* Check for the built-in bridge */ - else if (PCI_SLOT(dev->bus->self->devfn) == 3) { - slot = PCI_SLOT(dev->devfn) + 11; - } - else - { - /* Must be a card-based bridge. */ - do { - if (PCI_SLOT(dev->bus->self->devfn) == 3) { - slot = PCI_SLOT(dev->devfn) + 11; - break; - } - pin = pci_swizzle_interrupt_pin(dev, pin); - - /* Move up the chain of bridges. */ - dev = dev->bus->self; - /* Slot of the next bridge. */ - slot = PCI_SLOT(dev->devfn); - } while (dev->bus->self); - } - *pinp = pin; - return slot; -} - -#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) */ - /***********************************************************************/ /* GENERIC irq routines */ @@ -539,40 +313,7 @@ sable_lynx_init_pci(void) * these games with GAMMA_BIAS. */ -#if defined(CONFIG_ALPHA_GENERIC) || \ - (defined(CONFIG_ALPHA_SABLE) && !defined(CONFIG_ALPHA_GAMMA)) -#undef GAMMA_BIAS -#define GAMMA_BIAS 0 -struct alpha_machine_vector sable_mv __initmv = { - .vector_name = "Sable", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_T2_IO, - .machine_check = t2_machine_check, - .max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS, - .min_io_address = EISA_DEFAULT_IO_BASE, - .min_mem_address = T2_DEFAULT_MEM_BASE, - - .nr_irqs = 40, - .device_interrupt = sable_lynx_srm_device_interrupt, - - .init_arch = t2_init_arch, - .init_irq = sable_init_irq, - .init_rtc = common_init_rtc, - .init_pci = sable_lynx_init_pci, - .kill_arch = t2_kill_arch, - .pci_map_irq = sable_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .t2 = { - .gamma_bias = 0 - } } -}; -ALIAS_MV(sable) -#endif /* GENERIC || (SABLE && !GAMMA) */ - -#if defined(CONFIG_ALPHA_GENERIC) || \ - (defined(CONFIG_ALPHA_SABLE) && defined(CONFIG_ALPHA_GAMMA)) +#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) #undef GAMMA_BIAS #define GAMMA_BIAS _GAMMA_BIAS struct alpha_machine_vector sable_gamma_mv __initmv = { @@ -601,35 +342,4 @@ struct alpha_machine_vector sable_gamma_mv __initmv = { } } }; ALIAS_MV(sable_gamma) -#endif /* GENERIC || (SABLE && GAMMA) */ - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) -#undef GAMMA_BIAS -#define GAMMA_BIAS _GAMMA_BIAS -struct alpha_machine_vector lynx_mv __initmv = { - .vector_name = "Lynx", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_T2_IO, - .machine_check = t2_machine_check, - .max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS, - .min_io_address = EISA_DEFAULT_IO_BASE, - .min_mem_address = T2_DEFAULT_MEM_BASE, - - .nr_irqs = 64, - .device_interrupt = sable_lynx_srm_device_interrupt, - - .init_arch = t2_init_arch, - .init_irq = lynx_init_irq, - .init_rtc = common_init_rtc, - .init_pci = sable_lynx_init_pci, - .kill_arch = t2_kill_arch, - .pci_map_irq = lynx_map_irq, - .pci_swizzle = lynx_swizzle, - - .sys = { .t2 = { - .gamma_bias = _GAMMA_BIAS - } } -}; -ALIAS_MV(lynx) -#endif /* GENERIC || LYNX */ +#endif /* GENERIC || SABLE */ |