patch-2.3.99-pre7 linux/arch/ppc/kernel/totalmp.c

• Lines: 110
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.99-pre6/linux/arch/ppc/kernel/totalmp.c
• Orig date: Tue Aug 31 17:29:13 1999

diff -u --recursive --new-file v2.3.99-pre6/linux/arch/ppc/kernel/totalmp.c linux/arch/ppc/kernel/totalmp.c
@@ -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" */
-}
-