diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/alpha/kernel/sys_miata.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/alpha/kernel/sys_miata.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/ANDROID_3.4.5/arch/alpha/kernel/sys_miata.c b/ANDROID_3.4.5/arch/alpha/kernel/sys_miata.c deleted file mode 100644 index d5b9776a..00000000 --- a/ANDROID_3.4.5/arch/alpha/kernel/sys_miata.c +++ /dev/null @@ -1,292 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_miata.c - * - * Copyright (C) 1995 David A Rusling - * Copyright (C) 1996 Jay A Estabrook - * Copyright (C) 1998, 1999, 2000 Richard Henderson - * - * Code supporting the MIATA (EV56+PYXIS). - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/reboot.h> - -#include <asm/ptrace.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_cia.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" - - -static void -miata_srm_device_interrupt(unsigned long vector) -{ - int irq; - - irq = (vector - 0x800) >> 4; - - /* - * I really hate to do this, but the MIATA SRM console ignores the - * low 8 bits in the interrupt summary register, and reports the - * vector 0x80 *lower* than I expected from the bit numbering in - * the documentation. - * This was done because the low 8 summary bits really aren't used - * for reporting any interrupts (the PCI-ISA bridge, bit 7, isn't - * used for this purpose, as PIC interrupts are delivered as the - * vectors 0x800-0x8f0). - * But I really don't want to change the fixup code for allocation - * of IRQs, nor the alpha_irq_mask maintenance stuff, both of which - * look nice and clean now. - * So, here's this grotty hack... :-( - */ - if (irq >= 16) - irq = irq + 8; - - handle_irq(irq); -} - -static void __init -miata_init_irq(void) -{ - if (alpha_using_srm) - alpha_mv.device_interrupt = miata_srm_device_interrupt; - -#if 0 - /* These break on MiataGL so we'll try not to do it at all. */ - *(vulp)PYXIS_INT_HILO = 0x000000B2UL; mb(); /* ISA/NMI HI */ - *(vulp)PYXIS_RT_COUNT = 0UL; mb(); /* clear count */ -#endif - - init_i8259a_irqs(); - - /* Not interested in the bogus interrupts (3,10), Fan Fault (0), - NMI (1), or EIDE (9). - - We also disable the risers (4,5), since we don't know how to - route the interrupts behind the bridge. */ - init_pyxis_irqs(0x63b0000); - - common_init_isa_dma(); - setup_irq(16+2, &halt_switch_irqaction); /* SRM only? */ - setup_irq(16+6, &timer_cascade_irqaction); -} - - -/* - * PCI Fixup configuration. - * - * Summary @ PYXIS_INT_REQ: - * Bit Meaning - * 0 Fan Fault - * 1 NMI - * 2 Halt/Reset switch - * 3 none - * 4 CID0 (Riser ID) - * 5 CID1 (Riser ID) - * 6 Interval timer - * 7 PCI-ISA Bridge - * 8 Ethernet - * 9 EIDE (deprecated, ISA 14/15 used) - *10 none - *11 USB - *12 Interrupt Line A from slot 4 - *13 Interrupt Line B from slot 4 - *14 Interrupt Line C from slot 4 - *15 Interrupt Line D from slot 4 - *16 Interrupt Line A from slot 5 - *17 Interrupt line B from slot 5 - *18 Interrupt Line C from slot 5 - *19 Interrupt Line D from slot 5 - *20 Interrupt Line A from slot 1 - *21 Interrupt Line B from slot 1 - *22 Interrupt Line C from slot 1 - *23 Interrupt Line D from slot 1 - *24 Interrupt Line A from slot 2 - *25 Interrupt Line B from slot 2 - *26 Interrupt Line C from slot 2 - *27 Interrupt Line D from slot 2 - *27 Interrupt Line A from slot 3 - *29 Interrupt Line B from slot 3 - *30 Interrupt Line C from slot 3 - *31 Interrupt Line D from slot 3 - * - * The device to slot mapping looks like: - * - * Slot Device - * 3 DC21142 Ethernet - * 4 EIDE CMD646 - * 5 none - * 6 USB - * 7 PCI-ISA bridge - * 8 PCI-PCI Bridge (SBU Riser) - * 9 none - * 10 none - * 11 PCI on board slot 4 (SBU Riser) - * 12 PCI on board slot 5 (SBU Riser) - * - * These are behind the bridge, so I'm not sure what to do... - * - * 13 PCI on board slot 1 (SBU Riser) - * 14 PCI on board slot 2 (SBU Riser) - * 15 PCI on board slot 3 (SBU Riser) - * - * - * This two layered interrupt approach means that we allocate IRQ 16 and - * above for PCI interrupts. The IRQ relates to which bit the interrupt - * comes in on. This makes interrupt processing much easier. - */ - -static int __init -miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[18][5] __initdata = { - /*INT INTA INTB INTC INTD */ - {16+ 8, 16+ 8, 16+ 8, 16+ 8, 16+ 8}, /* IdSel 14, DC21142 */ - { -1, -1, -1, -1, -1}, /* IdSel 15, EIDE */ - { -1, -1, -1, -1, -1}, /* IdSel 16, none */ - { -1, -1, -1, -1, -1}, /* IdSel 17, none */ - { -1, -1, -1, -1, -1}, /* IdSel 18, PCI-ISA */ - { -1, -1, -1, -1, -1}, /* IdSel 19, PCI-PCI */ - { -1, -1, -1, -1, -1}, /* IdSel 20, none */ - { -1, -1, -1, -1, -1}, /* IdSel 21, none */ - {16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 22, slot 4 */ - {16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 23, slot 5 */ - /* the next 7 are actually on PCI bus 1, across the bridge */ - {16+11, 16+11, 16+11, 16+11, 16+11}, /* IdSel 24, QLISP/GL*/ - { -1, -1, -1, -1, -1}, /* IdSel 25, none */ - { -1, -1, -1, -1, -1}, /* IdSel 26, none */ - { -1, -1, -1, -1, -1}, /* IdSel 27, none */ - {16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 28, slot 1 */ - {16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 29, slot 2 */ - {16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 30, slot 3 */ - /* This bridge is on the main bus of the later orig MIATA */ - { -1, -1, -1, -1, -1}, /* IdSel 31, PCI-PCI */ - }; - const long min_idsel = 3, max_idsel = 20, irqs_per_slot = 5; - - /* the USB function of the 82c693 has it's interrupt connected to - the 2nd 8259 controller. So we have to check for it first. */ - - if((slot == 7) && (PCI_FUNC(dev->devfn) == 3)) { - u8 irq=0; - struct pci_dev *pdev = pci_get_slot(dev->bus, dev->devfn & ~7); - if(pdev == NULL || pci_read_config_byte(pdev, 0x40,&irq) != PCIBIOS_SUCCESSFUL) { - pci_dev_put(pdev); - return -1; - } - else { - pci_dev_put(pdev); - return irq; - } - } - - return COMMON_TABLE_LOOKUP; -} - -static u8 __init -miata_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) == 8) || - (PCI_SLOT(dev->bus->self->devfn) == 20)) { - slot = PCI_SLOT(dev->devfn) + 9; - } - else - { - /* Must be a card-based bridge. */ - do { - if ((PCI_SLOT(dev->bus->self->devfn) == 8) || - (PCI_SLOT(dev->bus->self->devfn) == 20)) { - slot = PCI_SLOT(dev->devfn) + 9; - 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; -} - -static void __init -miata_init_pci(void) -{ - cia_init_pci(); - SMC669_Init(0); /* it might be a GL (fails harmlessly if not) */ - es1888_init(); -} - -static void -miata_kill_arch(int mode) -{ - cia_kill_arch(mode); - -#ifndef ALPHA_RESTORE_SRM_SETUP - switch(mode) { - case LINUX_REBOOT_CMD_RESTART: - /* Who said DEC engineers have no sense of humor? ;-) */ - if (alpha_using_srm) { - *(vuip) PYXIS_RESET = 0x0000dead; - mb(); - } - break; - case LINUX_REBOOT_CMD_HALT: - break; - case LINUX_REBOOT_CMD_POWER_OFF: - break; - } - - halt(); -#endif -} - - -/* - * The System Vector - */ - -struct alpha_machine_vector miata_mv __initmv = { - .vector_name = "Miata", - DO_EV5_MMU, - DO_DEFAULT_RTC, - DO_PYXIS_IO, - .machine_check = cia_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = PYXIS_DAC_OFFSET, - - .nr_irqs = 48, - .device_interrupt = pyxis_device_interrupt, - - .init_arch = pyxis_init_arch, - .init_irq = miata_init_irq, - .init_rtc = common_init_rtc, - .init_pci = miata_init_pci, - .kill_arch = miata_kill_arch, - .pci_map_irq = miata_map_irq, - .pci_swizzle = miata_swizzle, -}; -ALIAS_MV(miata) |