diff options
Diffstat (limited to 'arch/arm/mach-ixp2000/ixdp2800.c')
| -rw-r--r-- | arch/arm/mach-ixp2000/ixdp2800.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c deleted file mode 100644 index a9f1819ea049..000000000000 --- a/arch/arm/mach-ixp2000/ixdp2800.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * arch/arm/mach-ixp2000/ixdp2800.c - * - * IXDP2800 platform support - * - * Original Author: Jeffrey Daly <jeffrey.daly@intel.com> - * Maintainer: Deepak Saxena <dsaxena@plexity.net> - * - * Copyright (C) 2002 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 <linux/kernel.h> -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/device.h> -#include <linux/bitops.h> -#include <linux/pci.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/io.h> - -#include <asm/irq.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <mach/hardware.h> -#include <asm/mach-types.h> - -#include <asm/mach/pci.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> -#include <asm/mach/flash.h> -#include <asm/mach/arch.h> - -/************************************************************************* - * IXDP2800 timer tick - *************************************************************************/ - -static void __init ixdp2800_timer_init(void) -{ - ixp2000_init_time(50000000); -} - -static struct sys_timer ixdp2800_timer = { - .init = ixdp2800_timer_init, - .offset = ixp2000_gettimeoffset, -}; - -/************************************************************************* - * IXDP2800 PCI - *************************************************************************/ -static void __init ixdp2800_slave_disable_pci_master(void) -{ - *IXP2000_PCI_CMDSTAT &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); -} - -static void __init ixdp2800_master_wait_for_slave(void) -{ - volatile u32 *addr; - - printk(KERN_INFO "IXDP2800: waiting for slave NPU to configure " - "its BAR sizes\n"); - - addr = ixp2000_pci_config_addr(0, IXDP2X00_SLAVE_NPU_DEVFN, - PCI_BASE_ADDRESS_1); - do { - *addr = 0xffffffff; - cpu_relax(); - } while (*addr != 0xfe000008); - - addr = ixp2000_pci_config_addr(0, IXDP2X00_SLAVE_NPU_DEVFN, - PCI_BASE_ADDRESS_2); - do { - *addr = 0xffffffff; - cpu_relax(); - } while (*addr != 0xc0000008); - - /* - * Configure the slave's SDRAM BAR by hand. - */ - *addr = 0x40000008; -} - -static void __init ixdp2800_slave_wait_for_master_enable(void) -{ - printk(KERN_INFO "IXDP2800: waiting for master NPU to enable us\n"); - - while ((*IXP2000_PCI_CMDSTAT & PCI_COMMAND_MASTER) == 0) - cpu_relax(); -} - -void __init ixdp2800_pci_preinit(void) -{ - printk("ixdp2x00_pci_preinit called\n"); - - *IXP2000_PCI_ADDR_EXT = 0x0001e000; - - if (!ixdp2x00_master_npu()) - ixdp2800_slave_disable_pci_master(); - - *IXP2000_PCI_SRAM_BASE_ADDR_MASK = (0x2000000 - 1) & ~0x3ffff; - *IXP2000_PCI_DRAM_BASE_ADDR_MASK = (0x40000000 - 1) & ~0xfffff; - - ixp2000_pci_preinit(); - - if (ixdp2x00_master_npu()) { - /* - * Wait until the slave set its SRAM/SDRAM BAR sizes - * correctly before we proceed to scan and enumerate - * the bus. - */ - ixdp2800_master_wait_for_slave(); - - /* - * We configure the SDRAM BARs by hand because they - * are 1G and fall outside of the regular allocated - * PCI address space. - */ - *IXP2000_PCI_SDRAM_BAR = 0x00000008; - } else { - /* - * Wait for the master to complete scanning the bus - * and assigning resources before we proceed to scan - * the bus ourselves. Set pci=firmware to honor the - * master's resource assignment. - */ - ixdp2800_slave_wait_for_master_enable(); - pcibios_setup("firmware"); - } -} - -/* - * We assign the SDRAM BARs for the two IXP2800 CPUs by hand, outside - * of the regular PCI window, because there's only 512M of outbound PCI - * memory window on each IXP, while we need 1G for each of the BARs. - */ -static void __devinit ixp2800_pci_fixup(struct pci_dev *dev) -{ - if (machine_is_ixdp2800()) { - dev->resource[2].start = 0; - dev->resource[2].end = 0; - dev->resource[2].flags = 0; - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IXP2800, ixp2800_pci_fixup); - -static int __init ixdp2800_pci_setup(int nr, struct pci_sys_data *sys) -{ - sys->mem_offset = 0x00000000; - - ixp2000_pci_setup(nr, sys); - - return 1; -} - -static int __init ixdp2800_pci_map_irq(const struct pci_dev *dev, u8 slot, - u8 pin) -{ - if (ixdp2x00_master_npu()) { - - /* - * Root bus devices. Slave NPU is only one with interrupt. - * Everything else, we just return -1 which is invalid. - */ - if(!dev->bus->self) { - if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN ) - return IRQ_IXDP2800_INGRESS_NPU; - - return -1; - } - - /* - * Bridge behind the PMC slot. - */ - if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN && - dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN && - !dev->bus->parent->self->bus->parent) - return IRQ_IXDP2800_PMC; - - /* - * Device behind the first bridge - */ - if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) { - switch(dev->devfn) { - case IXDP2X00_PMC_DEVFN: - return IRQ_IXDP2800_PMC; - - case IXDP2800_MASTER_ENET_DEVFN: - return IRQ_IXDP2800_EGRESS_ENET; - - case IXDP2800_SWITCH_FABRIC_DEVFN: - return IRQ_IXDP2800_FABRIC; - } - } - - return -1; - } else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */ -} - -static void __init ixdp2800_master_enable_slave(void) -{ - volatile u32 *addr; - - printk(KERN_INFO "IXDP2800: enabling slave NPU\n"); - - addr = (volatile u32 *)ixp2000_pci_config_addr(0, - IXDP2X00_SLAVE_NPU_DEVFN, - PCI_COMMAND); - - *addr |= PCI_COMMAND_MASTER; -} - -static void __init ixdp2800_master_wait_for_slave_bus_scan(void) -{ - volatile u32 *addr; - - printk(KERN_INFO "IXDP2800: waiting for slave to finish bus scan\n"); - - addr = (volatile u32 *)ixp2000_pci_config_addr(0, - IXDP2X00_SLAVE_NPU_DEVFN, - PCI_COMMAND); - while ((*addr & PCI_COMMAND_MEMORY) == 0) - cpu_relax(); -} - -static void __init ixdp2800_slave_signal_bus_scan_completion(void) -{ - printk(KERN_INFO "IXDP2800: bus scan done, signaling master\n"); - *IXP2000_PCI_CMDSTAT |= PCI_COMMAND_MEMORY; -} - -static void __init ixdp2800_pci_postinit(void) -{ - if (!ixdp2x00_master_npu()) { - ixdp2x00_slave_pci_postinit(); - ixdp2800_slave_signal_bus_scan_completion(); - } -} - -struct __initdata hw_pci ixdp2800_pci __initdata = { - .nr_controllers = 1, - .setup = ixdp2800_pci_setup, - .preinit = ixdp2800_pci_preinit, - .postinit = ixdp2800_pci_postinit, - .scan = ixp2000_pci_scan_bus, - .map_irq = ixdp2800_pci_map_irq, -}; - -int __init ixdp2800_pci_init(void) -{ - if (machine_is_ixdp2800()) { - struct pci_dev *dev; - - pci_common_init(&ixdp2800_pci); - if (ixdp2x00_master_npu()) { - dev = pci_get_bus_and_slot(1, IXDP2800_SLAVE_ENET_DEVFN); - pci_stop_and_remove_bus_device(dev); - pci_dev_put(dev); - - ixdp2800_master_enable_slave(); - ixdp2800_master_wait_for_slave_bus_scan(); - } else { - dev = pci_get_bus_and_slot(1, IXDP2800_MASTER_ENET_DEVFN); - pci_stop_and_remove_bus_device(dev); - pci_dev_put(dev); - } - } - - return 0; -} - -subsys_initcall(ixdp2800_pci_init); - -void __init ixdp2800_init_irq(void) -{ - ixdp2x00_init_irq(IXDP2800_CPLD_INT_STAT, IXDP2800_CPLD_INT_MASK, IXDP2800_NR_IRQS); -} - -MACHINE_START(IXDP2800, "Intel IXDP2800 Development Platform") - /* Maintainer: MontaVista Software, Inc. */ - .atag_offset = 0x100, - .map_io = ixdp2x00_map_io, - .init_irq = ixdp2800_init_irq, - .timer = &ixdp2800_timer, - .init_machine = ixdp2x00_init_machine, - .restart = ixp2000_restart, -MACHINE_END - |