From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/arm/mach-ixp2000/enp2611.c | 220 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 220 insertions(+) create mode 100644 arch/arm/mach-ixp2000/enp2611.c (limited to 'arch/arm/mach-ixp2000/enp2611.c') diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c new file mode 100644 index 000000000000..04b38bcf9aac --- /dev/null +++ b/arch/arm/mach-ixp2000/enp2611.c @@ -0,0 +1,220 @@ +/* + * arch/arm/mach-ixp2000/enp2611.c + * + * Radisys ENP-2611 support. + * + * Created 2004 by Lennert Buytenhek from the ixdp2x01 code. The + * original version carries the following notices: + * + * Original Author: Andrzej Mialkowski + * Maintainer: Deepak Saxena + * + * Copyright (C) 2002-2003 Intel Corp. + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +/************************************************************************* + * ENP-2611 timer tick configuration + *************************************************************************/ +static void __init enp2611_timer_init(void) +{ + ixp2000_init_time(50 * 1000 * 1000); +} + +static struct sys_timer enp2611_timer = { + .init = enp2611_timer_init, + .offset = ixp2000_gettimeoffset, +}; + + +/************************************************************************* + * ENP-2611 PCI + *************************************************************************/ +static int enp2611_pci_setup(int nr, struct pci_sys_data *sys) +{ + sys->mem_offset = 0xe0000000; + ixp2000_pci_setup(nr, sys); + return 1; +} + +static void __init enp2611_pci_preinit(void) +{ + ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000); + ixp2000_pci_preinit(); +} + +static inline int enp2611_pci_valid_device(struct pci_bus *bus, + unsigned int devfn) +{ + /* The 82559 ethernet controller appears at both PCI:1:0:0 and + * PCI:1:2:0, so let's pretend the second one isn't there. + */ + if (bus->number == 0x01 && devfn == 0x10) + return 0; + + return 1; +} + +static int enp2611_pci_read_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *value) +{ + if (enp2611_pci_valid_device(bus, devfn)) + return ixp2000_pci_read_config(bus, devfn, where, size, value); + + return PCIBIOS_DEVICE_NOT_FOUND; +} + +static int enp2611_pci_write_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 value) +{ + if (enp2611_pci_valid_device(bus, devfn)) + return ixp2000_pci_write_config(bus, devfn, where, size, value); + + return PCIBIOS_DEVICE_NOT_FOUND; +} + +static struct pci_ops enp2611_pci_ops = { + .read = enp2611_pci_read_config, + .write = enp2611_pci_write_config +}; + +static struct pci_bus * __init enp2611_pci_scan_bus(int nr, + struct pci_sys_data *sys) +{ + return pci_scan_bus(sys->busnr, &enp2611_pci_ops, sys); +} + +static int __init enp2611_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq; + + if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 0) { + /* IXP2400. */ + irq = IRQ_IXP2000_PCIA; + } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 1) { + /* 21555 non-transparent bridge. */ + irq = IRQ_IXP2000_PCIB; + } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 4) { + /* PCI2050B transparent bridge. */ + irq = -1; + } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 0) { + /* 82559 ethernet. */ + irq = IRQ_IXP2000_PCIA; + } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 1) { + /* SPI-3 option board. */ + irq = IRQ_IXP2000_PCIB; + } else { + printk(KERN_ERR "enp2611_pci_map_irq() called for unknown " + "device PCI:%d:%d:%d\n", dev->bus->number, + PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); + irq = -1; + } + + return irq; +} + +struct hw_pci enp2611_pci __initdata = { + .nr_controllers = 1, + .setup = enp2611_pci_setup, + .preinit = enp2611_pci_preinit, + .scan = enp2611_pci_scan_bus, + .map_irq = enp2611_pci_map_irq, +}; + +int __init enp2611_pci_init(void) +{ + if (machine_is_enp2611()) + pci_common_init(&enp2611_pci); + + return 0; +} + +subsys_initcall(enp2611_pci_init); + + +/************************************************************************* + * ENP-2611 Machine Intialization + *************************************************************************/ +static struct flash_platform_data enp2611_flash_platform_data = { + .map_name = "cfi_probe", + .width = 1, +}; + +static struct ixp2000_flash_data enp2611_flash_data = { + .platform_data = &enp2611_flash_platform_data, + .nr_banks = 1 +}; + +static struct resource enp2611_flash_resource = { + .start = 0xc4000000, + .end = 0xc4000000 + 0x00ffffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device enp2611_flash = { + .name = "IXP2000-Flash", + .id = 0, + .dev = { + .platform_data = &enp2611_flash_data, + }, + .num_resources = 1, + .resource = &enp2611_flash_resource, +}; + +static struct platform_device *enp2611_devices[] __initdata = { + &enp2611_flash +}; + +static void __init enp2611_init_machine(void) +{ + platform_add_devices(enp2611_devices, ARRAY_SIZE(enp2611_devices)); +} + + +MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board") + MAINTAINER("Lennert Buytenhek ") + BOOT_MEM(0x00000000, IXP2000_UART_PHYS_BASE, IXP2000_UART_VIRT_BASE) + BOOT_PARAMS(0x00000100) + MAPIO(ixp2000_map_io) + INITIRQ(ixp2000_init_irq) + .timer = &enp2611_timer, + INIT_MACHINE(enp2611_init_machine) +MACHINE_END + + -- cgit v1.2.3