projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 28bd3a0d MLJ |
1 | /* |
| 2 | * DSM-G600 board-level PCI initialization | |
| 3 | * | |
| 4 | * Copyright (C) 2006 Tower Technologies | |
| 5 | * Author: Alessandro Zummo <a.zummo@towertech.it> | |
| 6 | * | |
| 7 | * based on ixdp425-pci.c: | |
| 8 | * Copyright (C) 2002 Intel Corporation. | |
| 9 | * Copyright (C) 2003-2004 MontaVista Software, Inc. | |
| 10 | * | |
| 11 | * Maintainer: http://www.nslu2-linux.org/ | |
| 12 | * | |
| 13 | * This program is free software; you can redistribute it and/or modify | |
| 14 | * it under the terms of the GNU General Public License version 2 as | |
| 15 | * published by the Free Software Foundation. | |
| 16 | * | |
| 17 | */ | |
| 18 | ||
| 19 | #include <linux/pci.h> | |
| 20 | #include <linux/init.h> | |
| 21 | #include <linux/irq.h> | |
| 22 | ||
| 23 | #include <asm/mach/pci.h> | |
| 24 | #include <asm/mach-types.h> | |
| 25 | ||
| 26 | void __init dsmg600_pci_preinit(void) | |
| 27 | { | |
| 6cab4860 DES |
28 | set_irq_type(IRQ_DSMG600_PCI_INTA, IRQ_TYPE_LEVEL_LOW); |
| 29 | set_irq_type(IRQ_DSMG600_PCI_INTB, IRQ_TYPE_LEVEL_LOW); | |
| 30 | set_irq_type(IRQ_DSMG600_PCI_INTC, IRQ_TYPE_LEVEL_LOW); | |
| 31 | set_irq_type(IRQ_DSMG600_PCI_INTD, IRQ_TYPE_LEVEL_LOW); | |
| 32 | set_irq_type(IRQ_DSMG600_PCI_INTE, IRQ_TYPE_LEVEL_LOW); | |
| 33 | set_irq_type(IRQ_DSMG600_PCI_INTF, IRQ_TYPE_LEVEL_LOW); | |
| 28bd3a0d MLJ |
34 | |
| 35 | ixp4xx_pci_preinit(); | |
| 36 | } | |
| 37 | ||
| 38 | static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
| 39 | { | |
| 40 | static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] = | |
| 41 | { | |
| 42 | { IRQ_DSMG600_PCI_INTE, -1, -1 }, | |
| 43 | { IRQ_DSMG600_PCI_INTA, -1, -1 }, | |
| 44 | { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD }, | |
| 45 | { IRQ_DSMG600_PCI_INTF, -1, -1 }, | |
| 46 | }; | |
| 47 | ||
| 48 | int irq = -1; | |
| 49 | ||
| 50 | if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV && | |
| 51 | pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES) | |
| 52 | irq = pci_irq_table[slot-1][pin-1]; | |
| 53 | ||
| 54 | return irq; | |
| 55 | } | |
| 56 | ||
| 57 | struct hw_pci __initdata dsmg600_pci = { | |
| 58 | .nr_controllers = 1, | |
| 59 | .preinit = dsmg600_pci_preinit, | |
| 60 | .swizzle = pci_std_swizzle, | |
| 61 | .setup = ixp4xx_setup, | |
| 62 | .scan = ixp4xx_scan_bus, | |
| 63 | .map_irq = dsmg600_map_irq, | |
| 64 | }; | |
| 65 | ||
| 66 | int __init dsmg600_pci_init(void) | |
| 67 | { | |
| 68 | if (machine_is_dsmg600()) | |
| 69 | pci_common_init(&dsmg600_pci); | |
| 70 | ||
| 71 | return 0; | |
| 72 | } | |
| 73 | ||
| 74 | subsys_initcall(dsmg600_pci_init); |