/* * 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 I/O *************************************************************************/ static struct map_desc enp2611_io_desc[] __initdata = { { .virtual = ENP2611_CALEB_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_CALEB_PHYS_BASE), .length = ENP2611_CALEB_SIZE, .type = MT_IXP2000_DEVICE, }, { .virtual = ENP2611_PM3386_0_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_PM3386_0_PHYS_BASE), .length = ENP2611_PM3386_0_SIZE, .type = MT_IXP2000_DEVICE, }, { .virtual = ENP2611_PM3386_1_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_PM3386_1_PHYS_BASE), .length = ENP2611_PM3386_1_SIZE, .type = MT_IXP2000_DEVICE, } }; void __init enp2611_map_io(void) { ixp2000_map_io(); iotable_init(enp2611_io_desc, ARRAY_SIZE(enp2611_io_desc)); } /************************************************************************* * 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(); pcibios_setup("firmware"); } 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 ixp2000_i2c_pins enp2611_i2c_gpio_pins = { .sda_pin = ENP2611_GPIO_SDA, .scl_pin = ENP2611_GPIO_SCL, }; static struct platform_device enp2611_i2c_controller = { .name = "IXP2000-I2C", .id = 0, .dev = { .platform_data = &enp2611_i2c_gpio_pins }, .num_resources = 0 }; static struct platform_device *enp2611_devices[] __initdata = { &enp2611_flash, &enp2611_i2c_controller }; static void __init enp2611_init_machine(void) { platform_add_devices(enp2611_devices, ARRAY_SIZE(enp2611_devices)); ixp2000_uart_init(); } MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board") /* Maintainer: Lennert Buytenhek */ .phys_io = IXP2000_UART_PHYS_BASE, .io_pg_offst = ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc, .boot_params = 0x00000100, .map_io = enp2611_map_io, .init_irq = ixp2000_init_irq, .timer = &enp2611_timer, .init_machine = enp2611_init_machine, MACHINE_END