| /* |
| * Common PowerQUICC II code. |
| * |
| * Author: Scott Wood <scottwood@freescale.com> |
| * Copyright (c) 2007 Freescale Semiconductor |
| * |
| * Based on code by Vitaly Bordug <vbordug@ru.mvista.com> |
| * pq2_restart fix by Wade Farnsworth <wfarnsworth@mvista.com> |
| * Copyright (c) 2006 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 <asm/cpm2.h> |
| #include <asm/io.h> |
| #include <asm/pci-bridge.h> |
| |
| #include <platforms/82xx/pq2.h> |
| |
| #define RMR_CSRE 0x00000001 |
| |
| void pq2_restart(char *cmd) |
| { |
| local_irq_disable(); |
| setbits32(&cpm2_immr->im_clkrst.car_rmr, RMR_CSRE); |
| |
| /* Clear the ME,EE,IR & DR bits in MSR to cause checkstop */ |
| mtmsr(mfmsr() & ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR)); |
| in_8(&cpm2_immr->im_clkrst.res[0]); |
| |
| panic("Restart failed\n"); |
| } |
| |
| #ifdef CONFIG_PCI |
| static int pq2_pci_exclude_device(struct pci_controller *hose, |
| u_char bus, u8 devfn) |
| { |
| if (bus == 0 && PCI_SLOT(devfn) == 0) |
| return PCIBIOS_DEVICE_NOT_FOUND; |
| else |
| return PCIBIOS_SUCCESSFUL; |
| } |
| |
| static void __init pq2_pci_add_bridge(struct device_node *np) |
| { |
| struct pci_controller *hose; |
| struct resource r; |
| |
| if (of_address_to_resource(np, 0, &r) || r.end - r.start < 0x10b) |
| goto err; |
| |
| pci_add_flags(PCI_REASSIGN_ALL_BUS); |
| |
| hose = pcibios_alloc_controller(np); |
| if (!hose) |
| return; |
| |
| hose->dn = np; |
| |
| setup_indirect_pci(hose, r.start + 0x100, r.start + 0x104, 0); |
| pci_process_bridge_OF_ranges(hose, np, 1); |
| |
| return; |
| |
| err: |
| printk(KERN_ERR "No valid PCI reg property in device tree\n"); |
| } |
| |
| void __init pq2_init_pci(void) |
| { |
| struct device_node *np; |
| |
| ppc_md.pci_exclude_device = pq2_pci_exclude_device; |
| |
| for_each_compatible_node(np, NULL, "fsl,pq2-pci") |
| pq2_pci_add_bridge(np); |
| } |
| #endif |