| 1 | /* |
| 2 | * arch/arm/mach-iop33x/iq80332.c |
| 3 | * |
| 4 | * Board support code for the Intel IQ80332 platform. |
| 5 | * |
| 6 | * Author: Dave Jiang <dave.jiang@intel.com> |
| 7 | * Copyright (C) 2004 Intel Corp. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your |
| 12 | * option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/mm.h> |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/string.h> |
| 20 | #include <linux/serial_core.h> |
| 21 | #include <linux/serial_8250.h> |
| 22 | #include <linux/mtd/physmap.h> |
| 23 | #include <linux/platform_device.h> |
| 24 | #include <linux/io.h> |
| 25 | #include <mach/hardware.h> |
| 26 | #include <asm/irq.h> |
| 27 | #include <asm/mach/arch.h> |
| 28 | #include <asm/mach/map.h> |
| 29 | #include <asm/mach/pci.h> |
| 30 | #include <asm/mach/time.h> |
| 31 | #include <asm/mach-types.h> |
| 32 | #include <asm/page.h> |
| 33 | #include <asm/pgtable.h> |
| 34 | #include <mach/time.h> |
| 35 | |
| 36 | /* |
| 37 | * IQ80332 timer tick configuration. |
| 38 | */ |
| 39 | static void __init iq80332_timer_init(void) |
| 40 | { |
| 41 | /* D-Step parts and the iop333 run at a higher internal bus frequency */ |
| 42 | if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374) |
| 43 | iop_init_time(333000000); |
| 44 | else |
| 45 | iop_init_time(266000000); |
| 46 | } |
| 47 | |
| 48 | |
| 49 | /* |
| 50 | * IQ80332 PCI. |
| 51 | */ |
| 52 | static int __init |
| 53 | iq80332_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
| 54 | { |
| 55 | int irq; |
| 56 | |
| 57 | if (slot == 4 && pin == 1) { |
| 58 | /* PCI-X Slot INTA */ |
| 59 | irq = IRQ_IOP33X_XINT0; |
| 60 | } else if (slot == 4 && pin == 2) { |
| 61 | /* PCI-X Slot INTB */ |
| 62 | irq = IRQ_IOP33X_XINT1; |
| 63 | } else if (slot == 4 && pin == 3) { |
| 64 | /* PCI-X Slot INTC */ |
| 65 | irq = IRQ_IOP33X_XINT2; |
| 66 | } else if (slot == 4 && pin == 4) { |
| 67 | /* PCI-X Slot INTD */ |
| 68 | irq = IRQ_IOP33X_XINT3; |
| 69 | } else if (slot == 6) { |
| 70 | /* GigE */ |
| 71 | irq = IRQ_IOP33X_XINT2; |
| 72 | } else { |
| 73 | printk(KERN_ERR "iq80332_pci_map_irq() called for unknown " |
| 74 | "device PCI:%d:%d:%d\n", dev->bus->number, |
| 75 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); |
| 76 | irq = -1; |
| 77 | } |
| 78 | |
| 79 | return irq; |
| 80 | } |
| 81 | |
| 82 | static struct hw_pci iq80332_pci __initdata = { |
| 83 | .nr_controllers = 1, |
| 84 | .ops = &iop3xx_ops, |
| 85 | .setup = iop3xx_pci_setup, |
| 86 | .preinit = iop3xx_pci_preinit_cond, |
| 87 | .map_irq = iq80332_pci_map_irq, |
| 88 | }; |
| 89 | |
| 90 | static int __init iq80332_pci_init(void) |
| 91 | { |
| 92 | if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && |
| 93 | machine_is_iq80332()) |
| 94 | pci_common_init(&iq80332_pci); |
| 95 | |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | subsys_initcall(iq80332_pci_init); |
| 100 | |
| 101 | |
| 102 | /* |
| 103 | * IQ80332 machine initialisation. |
| 104 | */ |
| 105 | static struct physmap_flash_data iq80332_flash_data = { |
| 106 | .width = 1, |
| 107 | }; |
| 108 | |
| 109 | static struct resource iq80332_flash_resource = { |
| 110 | .start = 0xc0000000, |
| 111 | .end = 0xc07fffff, |
| 112 | .flags = IORESOURCE_MEM, |
| 113 | }; |
| 114 | |
| 115 | static struct platform_device iq80332_flash_device = { |
| 116 | .name = "physmap-flash", |
| 117 | .id = 0, |
| 118 | .dev = { |
| 119 | .platform_data = &iq80332_flash_data, |
| 120 | }, |
| 121 | .num_resources = 1, |
| 122 | .resource = &iq80332_flash_resource, |
| 123 | }; |
| 124 | |
| 125 | static void __init iq80332_init_machine(void) |
| 126 | { |
| 127 | platform_device_register(&iop3xx_i2c0_device); |
| 128 | platform_device_register(&iop3xx_i2c1_device); |
| 129 | platform_device_register(&iop33x_uart0_device); |
| 130 | platform_device_register(&iop33x_uart1_device); |
| 131 | platform_device_register(&iq80332_flash_device); |
| 132 | platform_device_register(&iop3xx_dma_0_channel); |
| 133 | platform_device_register(&iop3xx_dma_1_channel); |
| 134 | platform_device_register(&iop3xx_aau_channel); |
| 135 | } |
| 136 | |
| 137 | MACHINE_START(IQ80332, "Intel IQ80332") |
| 138 | /* Maintainer: Intel Corp. */ |
| 139 | .atag_offset = 0x100, |
| 140 | .map_io = iop3xx_map_io, |
| 141 | .init_irq = iop33x_init_irq, |
| 142 | .init_time = iq80332_timer_init, |
| 143 | .init_machine = iq80332_init_machine, |
| 144 | .restart = iop3xx_restart, |
| 145 | MACHINE_END |