diff options
Diffstat (limited to 'arch/ppc/kernel/totalmp.c')
| -rw-r--r-- | arch/ppc/kernel/totalmp.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/ppc/kernel/totalmp.c b/arch/ppc/kernel/totalmp.c deleted file mode 100644 index ecbc04b57..000000000 --- a/arch/ppc/kernel/totalmp.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * $Id: totalmp.c,v 1.6 1999/08/31 06:54:10 davem Exp $ - * - * Support for Total Impact's TotalMP PowerPC accelerator board. - * - * Written by Cort Dougan (cort@cs.nmt.edu) - * - * 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/pci.h> -#include <linux/init.h> -#include <linux/openpic.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/mm.h> - -#include <asm/io.h> - -extern void totalmp_init(void); - -extern inline void openpic_writefield(volatile u_int *addr, u_int mask, - u_int field); -void __init totalmp_init(void) -{ - struct pci_dev *dev; - u32 val; - unsigned long ctl_area, ctl_area_phys; - - /* it's a pci card */ - if ( !pci_present() ) return; - - /* search for a MPIC. For now, we assume - * only one TotalMP card installed. -- Cort - */ - for(dev=pci_devices; dev; dev=dev->next) - { - if ( (dev->vendor == PCI_VENDOR_ID_IBM) - && ((dev->device == PCI_DEVICE_ID_IBM_MPIC) - || (dev->device==PCI_DEVICE_ID_IBM_MPIC_2)) ) - { - break; - } - } - - if ( !dev ) return; - - OpenPIC = (struct OpenPIC *)bus_to_virt(dev->base_address[0]); -#if 0 - if ( (ulong)OpenPIC > 0x10000000 ) - { - printk("TotalMP: relocating base %lx -> %lx\n", - (ulong)OpenPIC, ((ulong)OpenPIC & 0x00FFFFFF) | 0x01000000); - OpenPIC = (struct OpenPIC *)(((ulong)OpenPIC & 0x00FFFFFF) | 0x01000000); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, (ulong)OpenPIC); - }*/ -#endif - OpenPIC = (struct OpenPIC *)((ulong)OpenPIC + _IO_BASE); - - openpic_init(0); - - /* put openpic in 8259-cascade mode */ - openpic_writefield(&OpenPIC->Global.Global_Configuration0, 0, 0x20000000); - /* set ipi to highest priority */ - openpic_writefield(&OpenPIC->Global._IPI_Vector_Priority[0].Reg, 0, 0x000f0000); - - /* allocate and remap the control area to be no-cache */ - ctl_area = __get_free_pages(GFP_ATOMIC, 3); - ctl_area_phys = (unsigned long) virt_to_phys((void *)ctl_area); - ctl_area = (unsigned long)ioremap(ctl_area, 0x8000); - - /* soft reset cpu 0 */ - pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &val); - openpic_writefield(&OpenPIC->Global._Processor_Initialization.Reg, 0, 0x1); - - /* wait for base address reg to change, signaling that cpu 0 is done */ -#define wait_for(where) { \ - udelay(100); \ - pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &val); \ - if ( val != 0x77700000 ) \ - { \ - printk("TotalMP: CPU0 did not respond: val %x %d\n", val, where); \ - /*free_pages((ulong)phys_to_virt(ctl_area_phys),1);*/ \ - return; \ - } } - - /* tell cpu0 where the control area is */ - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0,(~val) >> 16); - wait_for(0); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, - ((ulong)ctl_area & 0xff000000)>>20); - wait_for(1); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, - ((ulong)ctl_area & 0x00ff0000)>>12); - wait_for(2); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, - ((ulong)ctl_area & 0x0000ff00)>>4); - wait_for(3); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, - ((ulong)ctl_area & 0x000000ff)<<4); - wait_for(4); -#undef wait_for - /* wait for cpu0 to "sign-on" */ -} - |